The new vaccine your patients may not want

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Compared with the complicated and ever-changing recommended vaccine schedule for infants and children, vaccines for adults have been straightforward. Adults without compromised immunity who received all their childhood vaccinations are eligible for a tetanus and diphtheria (Td) or tetanus, diphtheria, and pertussis (Tdap) booster every 10 years, recombinant herpes zoster vaccine at age 50, and pneumococcal vaccines at age 65, along with annual influenza and (likely) COVID-19 vaccines. Last year, due to rising rates of acute hepatitis B, the Centers for Disease Control and Prevention first recommended universal hepatitis B vaccination for adults aged 19-59 years without a record of previous hepatitis B infection or vaccination.

An additional routine vaccine for adults is now on the horizon. The U.S. Food and Drug Administration recently approved Arexvy, a vaccine against respiratory syncytial virus (RSV) for adults aged 60 years or older. Two more RSV vaccines are in the final stages of development. Why should family physicians prioritize vaccinating older adults against RSV, and how can we incorporate this new vaccine into our practices and overcome patient hesitancy to receive yet another vaccine?

Clinicians tend to think of RSV as a serious disease in young children – which it is – but data suggest that in 2019, RSV infection led to more than 100,000 hospitalizations and 7,700 deaths in older adults in the United States. In a randomized controlled trial of 25,000 adults aged 60 years or older with a median of 6.7 months of follow-up, Arexvy reduced severe RSV disease by 94% and RSV-related acute respiratory infections by 71%, with similar effectiveness in adults with underlying health conditions. That’s considerably better protection than current influenza vaccines and comparable to COVID-19 mRNA vaccines before variants became widespread. Pain and fatigue were the most common side effects and usually resolved within 1-2 days.

Although the seasonal pattern of RSV shifted during the COVID-19 pandemic, RSV season historically begins in October, peaks in December, and ends in April. If the vaccine is recommended by the CDC and is widely available by fall, as the manufacturer, GSK, expects, it could be administered around the same time as influenza and COVID-19 vaccines.

The challenges of incorporating this new vaccine into practice will feel familiar: Many of our patients won’t have heard about it, may feel that they don’t need it, or may decline it because of concerns about side effects, real or imagined. (Of note, the FDA is requiring GSK to perform a postmarketing study to rule out associations with rare cases of Guillain-Barré syndrome and acute disseminated encephalomyelitis, and the company also plans to monitor the incidence of atrial fibrillation, which was slightly more common in the vaccine group than the placebo group.)

While a strong recommendation from a family physician is often enough to convince patients to accept vaccination, rampant misinformation during the pandemic may have worsened vaccine hesitancy for some. It may feel like a fruitless exercise to try to convince adults who have refused COVID-19 and influenza vaccines to accept a newer vaccine against a respiratory virus that causes less serious illness overall. But with other RSV vaccines and monoclonal antibodies for older adults and infants likely to be approved soon, it’s important for us to start laying the groundwork now by educating colleagues, staff, and patients about preventing serious illness caused by RSV.

Dr. Lin is an associate professor in the Department of Family Medicine at Georgetown University and a staff physician atMedStar Health Center, both in Washington. He has received income from UpToDate, Wiley-Blackwell, and the American Academy of Family Physicians.

A version of this article first appeared on Medscape.com.

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Compared with the complicated and ever-changing recommended vaccine schedule for infants and children, vaccines for adults have been straightforward. Adults without compromised immunity who received all their childhood vaccinations are eligible for a tetanus and diphtheria (Td) or tetanus, diphtheria, and pertussis (Tdap) booster every 10 years, recombinant herpes zoster vaccine at age 50, and pneumococcal vaccines at age 65, along with annual influenza and (likely) COVID-19 vaccines. Last year, due to rising rates of acute hepatitis B, the Centers for Disease Control and Prevention first recommended universal hepatitis B vaccination for adults aged 19-59 years without a record of previous hepatitis B infection or vaccination.

An additional routine vaccine for adults is now on the horizon. The U.S. Food and Drug Administration recently approved Arexvy, a vaccine against respiratory syncytial virus (RSV) for adults aged 60 years or older. Two more RSV vaccines are in the final stages of development. Why should family physicians prioritize vaccinating older adults against RSV, and how can we incorporate this new vaccine into our practices and overcome patient hesitancy to receive yet another vaccine?

Clinicians tend to think of RSV as a serious disease in young children – which it is – but data suggest that in 2019, RSV infection led to more than 100,000 hospitalizations and 7,700 deaths in older adults in the United States. In a randomized controlled trial of 25,000 adults aged 60 years or older with a median of 6.7 months of follow-up, Arexvy reduced severe RSV disease by 94% and RSV-related acute respiratory infections by 71%, with similar effectiveness in adults with underlying health conditions. That’s considerably better protection than current influenza vaccines and comparable to COVID-19 mRNA vaccines before variants became widespread. Pain and fatigue were the most common side effects and usually resolved within 1-2 days.

Although the seasonal pattern of RSV shifted during the COVID-19 pandemic, RSV season historically begins in October, peaks in December, and ends in April. If the vaccine is recommended by the CDC and is widely available by fall, as the manufacturer, GSK, expects, it could be administered around the same time as influenza and COVID-19 vaccines.

The challenges of incorporating this new vaccine into practice will feel familiar: Many of our patients won’t have heard about it, may feel that they don’t need it, or may decline it because of concerns about side effects, real or imagined. (Of note, the FDA is requiring GSK to perform a postmarketing study to rule out associations with rare cases of Guillain-Barré syndrome and acute disseminated encephalomyelitis, and the company also plans to monitor the incidence of atrial fibrillation, which was slightly more common in the vaccine group than the placebo group.)

While a strong recommendation from a family physician is often enough to convince patients to accept vaccination, rampant misinformation during the pandemic may have worsened vaccine hesitancy for some. It may feel like a fruitless exercise to try to convince adults who have refused COVID-19 and influenza vaccines to accept a newer vaccine against a respiratory virus that causes less serious illness overall. But with other RSV vaccines and monoclonal antibodies for older adults and infants likely to be approved soon, it’s important for us to start laying the groundwork now by educating colleagues, staff, and patients about preventing serious illness caused by RSV.

Dr. Lin is an associate professor in the Department of Family Medicine at Georgetown University and a staff physician atMedStar Health Center, both in Washington. He has received income from UpToDate, Wiley-Blackwell, and the American Academy of Family Physicians.

A version of this article first appeared on Medscape.com.

Compared with the complicated and ever-changing recommended vaccine schedule for infants and children, vaccines for adults have been straightforward. Adults without compromised immunity who received all their childhood vaccinations are eligible for a tetanus and diphtheria (Td) or tetanus, diphtheria, and pertussis (Tdap) booster every 10 years, recombinant herpes zoster vaccine at age 50, and pneumococcal vaccines at age 65, along with annual influenza and (likely) COVID-19 vaccines. Last year, due to rising rates of acute hepatitis B, the Centers for Disease Control and Prevention first recommended universal hepatitis B vaccination for adults aged 19-59 years without a record of previous hepatitis B infection or vaccination.

An additional routine vaccine for adults is now on the horizon. The U.S. Food and Drug Administration recently approved Arexvy, a vaccine against respiratory syncytial virus (RSV) for adults aged 60 years or older. Two more RSV vaccines are in the final stages of development. Why should family physicians prioritize vaccinating older adults against RSV, and how can we incorporate this new vaccine into our practices and overcome patient hesitancy to receive yet another vaccine?

Clinicians tend to think of RSV as a serious disease in young children – which it is – but data suggest that in 2019, RSV infection led to more than 100,000 hospitalizations and 7,700 deaths in older adults in the United States. In a randomized controlled trial of 25,000 adults aged 60 years or older with a median of 6.7 months of follow-up, Arexvy reduced severe RSV disease by 94% and RSV-related acute respiratory infections by 71%, with similar effectiveness in adults with underlying health conditions. That’s considerably better protection than current influenza vaccines and comparable to COVID-19 mRNA vaccines before variants became widespread. Pain and fatigue were the most common side effects and usually resolved within 1-2 days.

Although the seasonal pattern of RSV shifted during the COVID-19 pandemic, RSV season historically begins in October, peaks in December, and ends in April. If the vaccine is recommended by the CDC and is widely available by fall, as the manufacturer, GSK, expects, it could be administered around the same time as influenza and COVID-19 vaccines.

The challenges of incorporating this new vaccine into practice will feel familiar: Many of our patients won’t have heard about it, may feel that they don’t need it, or may decline it because of concerns about side effects, real or imagined. (Of note, the FDA is requiring GSK to perform a postmarketing study to rule out associations with rare cases of Guillain-Barré syndrome and acute disseminated encephalomyelitis, and the company also plans to monitor the incidence of atrial fibrillation, which was slightly more common in the vaccine group than the placebo group.)

While a strong recommendation from a family physician is often enough to convince patients to accept vaccination, rampant misinformation during the pandemic may have worsened vaccine hesitancy for some. It may feel like a fruitless exercise to try to convince adults who have refused COVID-19 and influenza vaccines to accept a newer vaccine against a respiratory virus that causes less serious illness overall. But with other RSV vaccines and monoclonal antibodies for older adults and infants likely to be approved soon, it’s important for us to start laying the groundwork now by educating colleagues, staff, and patients about preventing serious illness caused by RSV.

Dr. Lin is an associate professor in the Department of Family Medicine at Georgetown University and a staff physician atMedStar Health Center, both in Washington. He has received income from UpToDate, Wiley-Blackwell, and the American Academy of Family Physicians.

A version of this article first appeared on Medscape.com.

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Applications of office hysteroscopy for the infertility patient

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What role does diagnostic office hysteroscopy play in an infertility evaluation?

Performed properly, office hysteroscopy can transform your practice by accurately, gently, and safely assessing the uterine cavity as well as assessing tubal patency.1

More specifically, hysteroscopy is the gold standard for assessing the uterine cavity. The sensitivity, specificity, and positive predictive and negative predictive values of hysterosalpingography (HSG) in evaluating uterine cavity abnormalities were 44.83%; 86.67%; 56.52%; and 80.25%, respectively.2 Given the poor sensitivity of HSG, a diagnosis of endometrial polyps and/or chronic endometritis is more likely to be missed.

Dr. J. Preston Parry

Our crossover trial comparing HSG to office hysteroscopy for tubal patency showed that women were 110 times more likely to have the maximum level of pain with HSG than diagnostic hysteroscopy when using a 2.8-mm flexible hysteroscope.3 Further, infection rates and vasovagal events were far lower with hysteroscopy.1

Finally, compared with HSG, we showed 98%-100% sensitivity and 84% specificity for tubal occlusion with hysteroscopy by air-infused saline. Conversely, HSG typically is associated with 76%-96% sensitivity and 67%-100% specificity.4 Additionally, we can often perform diagnostic hysteroscopies for approximately $35 per procedure for total fixed and disposable equipment costs.
 

How should physicians perform office hysteroscopy to minimize patient discomfort?

The classic paradigm has been to focus on paracervical blocks, anxiolytics, and a supportive environment (such as mood music). However, those are far more important when your hysteroscope is larger than the natural cervical lumen. If you can use small hysteroscopes (< 3 mm for the nulliparous cervix, < 4 mm for the parous cervix), most women will not require cervical dilation, which further enhances the patient experience.

Dr. Mark P. Trolice

Using a flexible hysteroscope for suspected pathology, making sure not to overdistend the uterus (particularly in high-risk patients such as those with tubal occlusion and cervical stenosis), and vaginoscopy can all minimize patient discomfort. We have published data showing that by using a 2.8-mm flexible diagnostic hysteroscope in a group of mostly nulliparous women, greater than 50% have no discomfort, and more than 90% will have mild to no discomfort.3

What operative hysteroscopy procedures can be performed safely in a physician’s office, and what equipment is required?

Though highly dependent on experience and resources, reproductive endocrinology and infertility specialists (REIs) arguably have the easiest transition to operative office hysteroscopy by utilizing the analgesia and procedure room that is standard for oocyte retrieval and simply adding hysteroscopic procedures. The accompanying table stratifies general hysteroscopic procedures by difficulty.

Dr. Parry and Dr. Trolice
Relative Stages of Difficulty for Operative Office Hysteroscopy

If one can use propofol or a similar level of sedation (which is routinely utilized for oocyte aspiration), there are few hysteroscopies that cannot be accomplished in the office. However, the less sedation and analgesia, the more judicious one must be in patient selection. Moreover, there are trade-offs between visualization, comfort, and instrumentation.

The greater the uterine distention and diameter of the hysteroscope, the more patients experience pain. One-third of patients (especially nulliparous) will discontinue a procedure with a 5-mm hysteroscope because of discomfort.5 However, as one drops to 4.5 mm and smaller operative hysteroscopes, instruments often occupy the inflow channel, limiting distention and visualization, which also can affect completion rates and safety.
 

 

 

When is operative hysteroscopy best suited for the OR?

In addition to physician experience and clinical resources, the critical factors guiding our choices for selecting the OR rather than the office, include:

  • Loss of landmarks. Though Dr. Parry now does most severe intrauterine adhesion cases in the office with ultrasound guidance, when neither ostia can be visualized there is meaningful risk for perforation. Preoperative estrogen, development of planes with the diagnostic hysteroscope prior, and preparing the patient for a possible multistage procedure are all important.
  • Use of energy. There are many excellent hysteroscopic surgeons who use the resectoscope well in the office. However, with possible patient movement and potential perforation with energy leading to a bowel injury, there can be greater risk when using energy relative to other methods (such as forceps, scissors, and mechanical morcellation).
  • Deeper fibroids. Fibroids displace rather than invade the myometrium, and one can sonographically visualize the myometrium reapproximate over a fibroid as it herniates more into the uterine cavity. Nevertheless, the closer a fibroid comes to the serosa, the more mindful one should be of risks and balances for hysteroscopic removal.

In a patient with a severely stenotic cervix or tortuous endocervical canal, what preprocedure methods do you find helpful, and do you utilize abdominal ultrasound guidance?

If using a 2.8-mm flexible diagnostic hysteroscope, we find 99.8%-99.9% of cervices can be successfully cannulated in the office, with rare exception, that is, following cryotherapy or chlamydia cervicitis. This is the equivalent of your dilator having a camera on the tip and fully articulating to adjust to the cervical path.

Transvaginal sonography prior to hysteroscopy where one maps the cervical lumen helps anticipate problems (along with being familiar with the patient’s history). For the rare dilation under anesthesia, concurrent sonography with a 2.8-mm flexible hysteroscope and intermittent dilator use has been sufficient for our exceptions without the need for lacrimal dilators, vasopressin, misoprostol, and other adjuncts. Of note, we use a 1080p flexible endoscope, as lower resolution would make this more challenging.
 

In patients with recurrent implantation failure following IVF, is hysteroscopy superior to 3D saline infusion sonogram?

At an American Society of Reproductive Medicine 2021 session, Ilan Tur-Kaspa, MD, and Dr. Parry debated the topic of 2D ultrasound combined with hysteroscopy vs. 3D saline infusion sonography. Core areas of agreement were that expert hands for any approach are better than nonexpert, and high-resolution technology is better than lower resolution. There was also agreement that extrauterine and myometrial disease, such as intramural fibroids and adenomyosis, are contributory factors.

So, sonography will always have a role. However, existing and forthcoming data show hysteroscopy to improve live birth rates for patients with recurrent implantation failure after IVF. Dr. Parry finds diagnostic hysteroscopy easier for identifying endometritis, sessile and cornual polyps, retained products of conception (which are often isoechogenic with the endometrium) and lateral adhesions.

The reality is that there is variability among physicians and midlevel providers in both sonographic and diagnostic hysteroscopic skill. If one wants to verify findings with another team member, acknowledging that there can be nuances to identifying these pathologies by sonography, it is easier to share and discuss findings through hysteroscopic video than sonographic records.
 

 

 

When is endometrial biopsy indicated during office hysteroscopy?

The patients of an REI are very unlikely to have endometrial cancer (or even hyperplasia) outside of polyps (or arguably hypervascular areas of overgrowth), so the focus is on resecting visualized pathology relative to random biopsy.

However, the threshold for biopsy should be adjusted to the patient population, as well as to individual findings and risk. RVUs are greatly increased (11.1 > 41.57) with biopsy, helping sustainability. Additionally, if one places the hysteroscope on endometrium and applies suction through the inflow channel, one can obtain a sample with small-caliber diagnostic hysteroscopes and without having to use forceps.
 

What is your threshold for fluid deficit in hysteroscopy?

We follow AAGL guidelines, which for operative hysteroscopy are 2,500 mL of isotonic fluids or 1,000 mL of hypotonic fluids in low-risk patients. This should be further reduced to 500 mL of isotonic fluids in the elderly and even 300 mL in those with cardiovascular compromise.6

For patients who request sedation for office hysteroscopy, which option do you recommend – paracervical block alone, nitrous oxide, or the combination?

For diagnostic, greater than 95% of our patients do not require even over-the-counter analgesic medications. For operative, we consider all permissible resources that allow for a safe combination that is appropriate to the pathology and clinical setting, such as paracervical blocks, nitrous oxide, NSAIDs such as ketorolac, anxiolytics, and more.

The goal is to optimize the patient experience. However, the top three criteria that influence successful operative office hysteroscopy for a conscious patient are a parous cervix, judicious patient selection, and pre- and intraoperative verbal analgesia. Informed consent and engagement improve the experience of both the patient and physician.

Dr. Parry is the founder of Positive Steps Fertility in Madison, Miss. Dr. Trolice is director of The IVF Center in Winter Park, Fla., and professor of obstetrics and gynecology at the University of Central Florida, Orlando.

References

1. Parry JP et al. J Minim Invasive Gynecol. 2017 May-Jun. doi: 10.1016/j.jmig.2017.02.010.

2. Wadhwa L et al. 2017 Apr-Jun. doi: 10.4103/jhrs.JHRS_123_16.

3. Parry JP et al. Fertil Steril. 2017 Oct. doi: 10.1016/j.fertnstert.2017.07.1159.

4. Penzias A et al. Fertil Steril. 2021 Nov. doi: 10.1016/j.fertnstert.2021.08.038.

5. Campo R et al. Hum Reprod. 2005 Jan;20(1):258-63. doi: 10.1093/humrep/deh559.

6. AAGL AAGL practice report: Practice guidelines for the management of hysteroscopic distending media. J Minim Invasive Gynecol. 2013 Mar-Apr. doi: 10.1016/j.jmig.2012.12.002.

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What role does diagnostic office hysteroscopy play in an infertility evaluation?

Performed properly, office hysteroscopy can transform your practice by accurately, gently, and safely assessing the uterine cavity as well as assessing tubal patency.1

More specifically, hysteroscopy is the gold standard for assessing the uterine cavity. The sensitivity, specificity, and positive predictive and negative predictive values of hysterosalpingography (HSG) in evaluating uterine cavity abnormalities were 44.83%; 86.67%; 56.52%; and 80.25%, respectively.2 Given the poor sensitivity of HSG, a diagnosis of endometrial polyps and/or chronic endometritis is more likely to be missed.

Dr. J. Preston Parry

Our crossover trial comparing HSG to office hysteroscopy for tubal patency showed that women were 110 times more likely to have the maximum level of pain with HSG than diagnostic hysteroscopy when using a 2.8-mm flexible hysteroscope.3 Further, infection rates and vasovagal events were far lower with hysteroscopy.1

Finally, compared with HSG, we showed 98%-100% sensitivity and 84% specificity for tubal occlusion with hysteroscopy by air-infused saline. Conversely, HSG typically is associated with 76%-96% sensitivity and 67%-100% specificity.4 Additionally, we can often perform diagnostic hysteroscopies for approximately $35 per procedure for total fixed and disposable equipment costs.
 

How should physicians perform office hysteroscopy to minimize patient discomfort?

The classic paradigm has been to focus on paracervical blocks, anxiolytics, and a supportive environment (such as mood music). However, those are far more important when your hysteroscope is larger than the natural cervical lumen. If you can use small hysteroscopes (< 3 mm for the nulliparous cervix, < 4 mm for the parous cervix), most women will not require cervical dilation, which further enhances the patient experience.

Dr. Mark P. Trolice

Using a flexible hysteroscope for suspected pathology, making sure not to overdistend the uterus (particularly in high-risk patients such as those with tubal occlusion and cervical stenosis), and vaginoscopy can all minimize patient discomfort. We have published data showing that by using a 2.8-mm flexible diagnostic hysteroscope in a group of mostly nulliparous women, greater than 50% have no discomfort, and more than 90% will have mild to no discomfort.3

What operative hysteroscopy procedures can be performed safely in a physician’s office, and what equipment is required?

Though highly dependent on experience and resources, reproductive endocrinology and infertility specialists (REIs) arguably have the easiest transition to operative office hysteroscopy by utilizing the analgesia and procedure room that is standard for oocyte retrieval and simply adding hysteroscopic procedures. The accompanying table stratifies general hysteroscopic procedures by difficulty.

Dr. Parry and Dr. Trolice
Relative Stages of Difficulty for Operative Office Hysteroscopy

If one can use propofol or a similar level of sedation (which is routinely utilized for oocyte aspiration), there are few hysteroscopies that cannot be accomplished in the office. However, the less sedation and analgesia, the more judicious one must be in patient selection. Moreover, there are trade-offs between visualization, comfort, and instrumentation.

The greater the uterine distention and diameter of the hysteroscope, the more patients experience pain. One-third of patients (especially nulliparous) will discontinue a procedure with a 5-mm hysteroscope because of discomfort.5 However, as one drops to 4.5 mm and smaller operative hysteroscopes, instruments often occupy the inflow channel, limiting distention and visualization, which also can affect completion rates and safety.
 

 

 

When is operative hysteroscopy best suited for the OR?

In addition to physician experience and clinical resources, the critical factors guiding our choices for selecting the OR rather than the office, include:

  • Loss of landmarks. Though Dr. Parry now does most severe intrauterine adhesion cases in the office with ultrasound guidance, when neither ostia can be visualized there is meaningful risk for perforation. Preoperative estrogen, development of planes with the diagnostic hysteroscope prior, and preparing the patient for a possible multistage procedure are all important.
  • Use of energy. There are many excellent hysteroscopic surgeons who use the resectoscope well in the office. However, with possible patient movement and potential perforation with energy leading to a bowel injury, there can be greater risk when using energy relative to other methods (such as forceps, scissors, and mechanical morcellation).
  • Deeper fibroids. Fibroids displace rather than invade the myometrium, and one can sonographically visualize the myometrium reapproximate over a fibroid as it herniates more into the uterine cavity. Nevertheless, the closer a fibroid comes to the serosa, the more mindful one should be of risks and balances for hysteroscopic removal.

In a patient with a severely stenotic cervix or tortuous endocervical canal, what preprocedure methods do you find helpful, and do you utilize abdominal ultrasound guidance?

If using a 2.8-mm flexible diagnostic hysteroscope, we find 99.8%-99.9% of cervices can be successfully cannulated in the office, with rare exception, that is, following cryotherapy or chlamydia cervicitis. This is the equivalent of your dilator having a camera on the tip and fully articulating to adjust to the cervical path.

Transvaginal sonography prior to hysteroscopy where one maps the cervical lumen helps anticipate problems (along with being familiar with the patient’s history). For the rare dilation under anesthesia, concurrent sonography with a 2.8-mm flexible hysteroscope and intermittent dilator use has been sufficient for our exceptions without the need for lacrimal dilators, vasopressin, misoprostol, and other adjuncts. Of note, we use a 1080p flexible endoscope, as lower resolution would make this more challenging.
 

In patients with recurrent implantation failure following IVF, is hysteroscopy superior to 3D saline infusion sonogram?

At an American Society of Reproductive Medicine 2021 session, Ilan Tur-Kaspa, MD, and Dr. Parry debated the topic of 2D ultrasound combined with hysteroscopy vs. 3D saline infusion sonography. Core areas of agreement were that expert hands for any approach are better than nonexpert, and high-resolution technology is better than lower resolution. There was also agreement that extrauterine and myometrial disease, such as intramural fibroids and adenomyosis, are contributory factors.

So, sonography will always have a role. However, existing and forthcoming data show hysteroscopy to improve live birth rates for patients with recurrent implantation failure after IVF. Dr. Parry finds diagnostic hysteroscopy easier for identifying endometritis, sessile and cornual polyps, retained products of conception (which are often isoechogenic with the endometrium) and lateral adhesions.

The reality is that there is variability among physicians and midlevel providers in both sonographic and diagnostic hysteroscopic skill. If one wants to verify findings with another team member, acknowledging that there can be nuances to identifying these pathologies by sonography, it is easier to share and discuss findings through hysteroscopic video than sonographic records.
 

 

 

When is endometrial biopsy indicated during office hysteroscopy?

The patients of an REI are very unlikely to have endometrial cancer (or even hyperplasia) outside of polyps (or arguably hypervascular areas of overgrowth), so the focus is on resecting visualized pathology relative to random biopsy.

However, the threshold for biopsy should be adjusted to the patient population, as well as to individual findings and risk. RVUs are greatly increased (11.1 > 41.57) with biopsy, helping sustainability. Additionally, if one places the hysteroscope on endometrium and applies suction through the inflow channel, one can obtain a sample with small-caliber diagnostic hysteroscopes and without having to use forceps.
 

What is your threshold for fluid deficit in hysteroscopy?

We follow AAGL guidelines, which for operative hysteroscopy are 2,500 mL of isotonic fluids or 1,000 mL of hypotonic fluids in low-risk patients. This should be further reduced to 500 mL of isotonic fluids in the elderly and even 300 mL in those with cardiovascular compromise.6

For patients who request sedation for office hysteroscopy, which option do you recommend – paracervical block alone, nitrous oxide, or the combination?

For diagnostic, greater than 95% of our patients do not require even over-the-counter analgesic medications. For operative, we consider all permissible resources that allow for a safe combination that is appropriate to the pathology and clinical setting, such as paracervical blocks, nitrous oxide, NSAIDs such as ketorolac, anxiolytics, and more.

The goal is to optimize the patient experience. However, the top three criteria that influence successful operative office hysteroscopy for a conscious patient are a parous cervix, judicious patient selection, and pre- and intraoperative verbal analgesia. Informed consent and engagement improve the experience of both the patient and physician.

Dr. Parry is the founder of Positive Steps Fertility in Madison, Miss. Dr. Trolice is director of The IVF Center in Winter Park, Fla., and professor of obstetrics and gynecology at the University of Central Florida, Orlando.

References

1. Parry JP et al. J Minim Invasive Gynecol. 2017 May-Jun. doi: 10.1016/j.jmig.2017.02.010.

2. Wadhwa L et al. 2017 Apr-Jun. doi: 10.4103/jhrs.JHRS_123_16.

3. Parry JP et al. Fertil Steril. 2017 Oct. doi: 10.1016/j.fertnstert.2017.07.1159.

4. Penzias A et al. Fertil Steril. 2021 Nov. doi: 10.1016/j.fertnstert.2021.08.038.

5. Campo R et al. Hum Reprod. 2005 Jan;20(1):258-63. doi: 10.1093/humrep/deh559.

6. AAGL AAGL practice report: Practice guidelines for the management of hysteroscopic distending media. J Minim Invasive Gynecol. 2013 Mar-Apr. doi: 10.1016/j.jmig.2012.12.002.

 

What role does diagnostic office hysteroscopy play in an infertility evaluation?

Performed properly, office hysteroscopy can transform your practice by accurately, gently, and safely assessing the uterine cavity as well as assessing tubal patency.1

More specifically, hysteroscopy is the gold standard for assessing the uterine cavity. The sensitivity, specificity, and positive predictive and negative predictive values of hysterosalpingography (HSG) in evaluating uterine cavity abnormalities were 44.83%; 86.67%; 56.52%; and 80.25%, respectively.2 Given the poor sensitivity of HSG, a diagnosis of endometrial polyps and/or chronic endometritis is more likely to be missed.

Dr. J. Preston Parry

Our crossover trial comparing HSG to office hysteroscopy for tubal patency showed that women were 110 times more likely to have the maximum level of pain with HSG than diagnostic hysteroscopy when using a 2.8-mm flexible hysteroscope.3 Further, infection rates and vasovagal events were far lower with hysteroscopy.1

Finally, compared with HSG, we showed 98%-100% sensitivity and 84% specificity for tubal occlusion with hysteroscopy by air-infused saline. Conversely, HSG typically is associated with 76%-96% sensitivity and 67%-100% specificity.4 Additionally, we can often perform diagnostic hysteroscopies for approximately $35 per procedure for total fixed and disposable equipment costs.
 

How should physicians perform office hysteroscopy to minimize patient discomfort?

The classic paradigm has been to focus on paracervical blocks, anxiolytics, and a supportive environment (such as mood music). However, those are far more important when your hysteroscope is larger than the natural cervical lumen. If you can use small hysteroscopes (< 3 mm for the nulliparous cervix, < 4 mm for the parous cervix), most women will not require cervical dilation, which further enhances the patient experience.

Dr. Mark P. Trolice

Using a flexible hysteroscope for suspected pathology, making sure not to overdistend the uterus (particularly in high-risk patients such as those with tubal occlusion and cervical stenosis), and vaginoscopy can all minimize patient discomfort. We have published data showing that by using a 2.8-mm flexible diagnostic hysteroscope in a group of mostly nulliparous women, greater than 50% have no discomfort, and more than 90% will have mild to no discomfort.3

What operative hysteroscopy procedures can be performed safely in a physician’s office, and what equipment is required?

Though highly dependent on experience and resources, reproductive endocrinology and infertility specialists (REIs) arguably have the easiest transition to operative office hysteroscopy by utilizing the analgesia and procedure room that is standard for oocyte retrieval and simply adding hysteroscopic procedures. The accompanying table stratifies general hysteroscopic procedures by difficulty.

Dr. Parry and Dr. Trolice
Relative Stages of Difficulty for Operative Office Hysteroscopy

If one can use propofol or a similar level of sedation (which is routinely utilized for oocyte aspiration), there are few hysteroscopies that cannot be accomplished in the office. However, the less sedation and analgesia, the more judicious one must be in patient selection. Moreover, there are trade-offs between visualization, comfort, and instrumentation.

The greater the uterine distention and diameter of the hysteroscope, the more patients experience pain. One-third of patients (especially nulliparous) will discontinue a procedure with a 5-mm hysteroscope because of discomfort.5 However, as one drops to 4.5 mm and smaller operative hysteroscopes, instruments often occupy the inflow channel, limiting distention and visualization, which also can affect completion rates and safety.
 

 

 

When is operative hysteroscopy best suited for the OR?

In addition to physician experience and clinical resources, the critical factors guiding our choices for selecting the OR rather than the office, include:

  • Loss of landmarks. Though Dr. Parry now does most severe intrauterine adhesion cases in the office with ultrasound guidance, when neither ostia can be visualized there is meaningful risk for perforation. Preoperative estrogen, development of planes with the diagnostic hysteroscope prior, and preparing the patient for a possible multistage procedure are all important.
  • Use of energy. There are many excellent hysteroscopic surgeons who use the resectoscope well in the office. However, with possible patient movement and potential perforation with energy leading to a bowel injury, there can be greater risk when using energy relative to other methods (such as forceps, scissors, and mechanical morcellation).
  • Deeper fibroids. Fibroids displace rather than invade the myometrium, and one can sonographically visualize the myometrium reapproximate over a fibroid as it herniates more into the uterine cavity. Nevertheless, the closer a fibroid comes to the serosa, the more mindful one should be of risks and balances for hysteroscopic removal.

In a patient with a severely stenotic cervix or tortuous endocervical canal, what preprocedure methods do you find helpful, and do you utilize abdominal ultrasound guidance?

If using a 2.8-mm flexible diagnostic hysteroscope, we find 99.8%-99.9% of cervices can be successfully cannulated in the office, with rare exception, that is, following cryotherapy or chlamydia cervicitis. This is the equivalent of your dilator having a camera on the tip and fully articulating to adjust to the cervical path.

Transvaginal sonography prior to hysteroscopy where one maps the cervical lumen helps anticipate problems (along with being familiar with the patient’s history). For the rare dilation under anesthesia, concurrent sonography with a 2.8-mm flexible hysteroscope and intermittent dilator use has been sufficient for our exceptions without the need for lacrimal dilators, vasopressin, misoprostol, and other adjuncts. Of note, we use a 1080p flexible endoscope, as lower resolution would make this more challenging.
 

In patients with recurrent implantation failure following IVF, is hysteroscopy superior to 3D saline infusion sonogram?

At an American Society of Reproductive Medicine 2021 session, Ilan Tur-Kaspa, MD, and Dr. Parry debated the topic of 2D ultrasound combined with hysteroscopy vs. 3D saline infusion sonography. Core areas of agreement were that expert hands for any approach are better than nonexpert, and high-resolution technology is better than lower resolution. There was also agreement that extrauterine and myometrial disease, such as intramural fibroids and adenomyosis, are contributory factors.

So, sonography will always have a role. However, existing and forthcoming data show hysteroscopy to improve live birth rates for patients with recurrent implantation failure after IVF. Dr. Parry finds diagnostic hysteroscopy easier for identifying endometritis, sessile and cornual polyps, retained products of conception (which are often isoechogenic with the endometrium) and lateral adhesions.

The reality is that there is variability among physicians and midlevel providers in both sonographic and diagnostic hysteroscopic skill. If one wants to verify findings with another team member, acknowledging that there can be nuances to identifying these pathologies by sonography, it is easier to share and discuss findings through hysteroscopic video than sonographic records.
 

 

 

When is endometrial biopsy indicated during office hysteroscopy?

The patients of an REI are very unlikely to have endometrial cancer (or even hyperplasia) outside of polyps (or arguably hypervascular areas of overgrowth), so the focus is on resecting visualized pathology relative to random biopsy.

However, the threshold for biopsy should be adjusted to the patient population, as well as to individual findings and risk. RVUs are greatly increased (11.1 > 41.57) with biopsy, helping sustainability. Additionally, if one places the hysteroscope on endometrium and applies suction through the inflow channel, one can obtain a sample with small-caliber diagnostic hysteroscopes and without having to use forceps.
 

What is your threshold for fluid deficit in hysteroscopy?

We follow AAGL guidelines, which for operative hysteroscopy are 2,500 mL of isotonic fluids or 1,000 mL of hypotonic fluids in low-risk patients. This should be further reduced to 500 mL of isotonic fluids in the elderly and even 300 mL in those with cardiovascular compromise.6

For patients who request sedation for office hysteroscopy, which option do you recommend – paracervical block alone, nitrous oxide, or the combination?

For diagnostic, greater than 95% of our patients do not require even over-the-counter analgesic medications. For operative, we consider all permissible resources that allow for a safe combination that is appropriate to the pathology and clinical setting, such as paracervical blocks, nitrous oxide, NSAIDs such as ketorolac, anxiolytics, and more.

The goal is to optimize the patient experience. However, the top three criteria that influence successful operative office hysteroscopy for a conscious patient are a parous cervix, judicious patient selection, and pre- and intraoperative verbal analgesia. Informed consent and engagement improve the experience of both the patient and physician.

Dr. Parry is the founder of Positive Steps Fertility in Madison, Miss. Dr. Trolice is director of The IVF Center in Winter Park, Fla., and professor of obstetrics and gynecology at the University of Central Florida, Orlando.

References

1. Parry JP et al. J Minim Invasive Gynecol. 2017 May-Jun. doi: 10.1016/j.jmig.2017.02.010.

2. Wadhwa L et al. 2017 Apr-Jun. doi: 10.4103/jhrs.JHRS_123_16.

3. Parry JP et al. Fertil Steril. 2017 Oct. doi: 10.1016/j.fertnstert.2017.07.1159.

4. Penzias A et al. Fertil Steril. 2021 Nov. doi: 10.1016/j.fertnstert.2021.08.038.

5. Campo R et al. Hum Reprod. 2005 Jan;20(1):258-63. doi: 10.1093/humrep/deh559.

6. AAGL AAGL practice report: Practice guidelines for the management of hysteroscopic distending media. J Minim Invasive Gynecol. 2013 Mar-Apr. doi: 10.1016/j.jmig.2012.12.002.

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Is the contemporary mental health crisis among youth due to DMN disruption?

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Is the contemporary mental health crisis among youth due to DMN disruption?

The advent of unprecedented technologies drastically altering the behavior of children and adolescents, compounded by prolonged isolation from a once-in-a-century pandemic, may have negatively impacted the normal connectivity of the human brain among youth, leading to the current alarming increase of depression, anxiety, and suicidality among this population.

The human brain is comprised of multiple large-scale networks that are functionally connected and control feelings, thoughts, and behaviors. As clinical neuroscientists, psychiatrists must consider the profound impact of a massive societal shift in human behavior on the functional connectivity of brain networks in health and disease. The advent of smartphones, social media, and video game addiction may have disrupted the developing brain networks in children and adolescents, leading to the current escalating epidemic of mental disorders in youth.

The major networks in the human brain include the default mode network (DMN), the salience network, the limbic system, the dorsal attention network, the central executive network, and the visual system.1 Each network connects several brain regions. Researchers can use functional MRI to detect the connectivity of those networks. When blood flow increases concurrently across 2 or 3 networks, this indicates those networks are functionally connected.

There was an old “dogma” that brain regions use energy only when activated and being used. Hans Berger, who developed the EEG in 1929, noticed electrical activity at rest and proposed that the brain is constantly busy, but his neurology peers did not take him seriously.2 In the 1950s, Louis Sokoloff noticed that brain metabolism was the same whether a person is at rest or doing math. In the 1970s, David Ingvar discovered that the highest blood flow in the frontal lobe occurred when a person was at rest.3 Finally, in 2007, Raichle et al4 used positron emission tomography scans to confirm that the frontal lobe is most active when a person is not doing anything. He labeled this phenomenon the DMN, comprising the medial fronto-parietal cortex, the posterior cingulate gyrus, the precuneus, and the angular gyrus. Interestingly, the number of publications about the DMN has skyrocketed since 2007.

The many roles of the DMN

Ongoing research has revealed that the DMN is most active at rest, and its anatomical hubs mediate several key functions5:

  • Posterior cingulate gyrus (the central core of the DMN): remembering the past and thinking about the future
  • Medial prefrontal cortex: autobiographical memories, future goals and events, reflecting on one’s emotional self, and considering decisions about family members
  • Dorsal medial subsystem: thinking about others, determining and inferring the purpose of other people’s actions
  • Temporo-parietal junction: reflecting on the beliefs and emotions of others (known as “theory of mind”6)
  • Lateral parietal junction: retrieval of social and conceptual knowledge
  • Hippocampus: forming new memories, remembering the past, imagining the future
  • Posterior-inferior parietal lobe: junction of auditory, visual, and somatic sensory information and attention
  • Precuneus: Visual, sensory-motor, and attention.

Many terms have been used to describe the function of the DMN, including “daydreaming,” “auto-pilot,” “mind-wondering,” “reminiscing,” “contemplating,” “self-reflection,” “the neurological basis of the self,” and “seat of literary creativity.”

Psychiatric consequences of DMN deactivation

When another brain network, the attention network (which is also referred to as the task-positive network), is activated consciously and volitionally to perform a task that demands focus (such as text messaging, playing video games, or continuously interacting with social media sites), DMN activity declines.

Continue to: The DMN does not exist...

 

 

The DMN does not exist in infants, but starts to develop in childhood.7 It is enhanced by exercise, daydreaming, and sleep, activities that are common in childhood but have declined drastically with the widespread use of smartphones, video games, and social media, which for many youth occupy the bulk of their waking hours. Those tasks, which require continuous attention, deactivate the DMN. In fact, research has shown that addictive behavior decreases the connectivity of the DMN and suppresses its activity.8 Most children and adolescents can be regarded as essentially addicted to social media, text messaging, and video games. Unsurprisingly, serious psychiatric consequences follow.9

DMN dysfunction has been reported in several psychiatric conditions, including depression, posttraumatic stress disorder, autism, schizophrenia, anxiety, obsessive-compulsive disorder, and substance use.10-12 Impaired social interactions and communications, negative ruminations, suicidal ideas, and impaired encoding of long-term memories are some of the adverse effects of DMN dysfunction. The good news is that the DMN’s connectivity and functioning can be modulated and restored by meditation, mentalizing, exercise, psychotherapy, antidepressants, and psychedelics.13,14

The lockdown and stress of the COVID-19 pandemic added insult to injury and exacerbated mental illness in children by isolating them from each other and intensifying their technological addiction to fill the void of isolation. This crisis in youth mental health continues unabated, and calls for action to prevent grim outcomes. DMN dysfunction in youth can be reversed with treatment, but access to mental health care has become more challenging due to workforce shortages and insurance restrictions. Psychiatrists and parents must work diligently to treat psychiatrically affected youth, which has become a DaMN serious problem…

References

1. Yao Z, Hu B, Xie Y, et al. A review of structural and functional brain networks: small world and atlas. Brain Inform. 2015;2(1):45-52. doi:10.1007/s40708-015-0009-z

2. Raichle ME. The brain’s dark energy. Sci Am. 2010;302(3):44-49. doi:10.1038/scientific american0310-44

3. Buckner RL, Andrews-Hanna JR, Schacter DL. The brain’s default network: anatomy, function, and relevance to disease. Ann N Y Acad Sci. 2008;1124:1-38. doi:10.1196/annals.1440.011

4. Raichle ME, Snyder AZ. A default mode of brain function: a brief history of an evolving idea. Neuroimage. 2007;37(4):1083-1090; discussion 1097-1099. doi:10.1016/j.neuroimage.2007.02.041

5. Andrews-Hanna JR. The brain’s default network and its adaptive role in internal mentation. Neuroscientist. 2012;18(3):251-270. doi:10.1177/1073858411403316

6. Tsoukalas I. Theory of mind: towards an evolutionary theory. Evolutionary Psychological Science. 2018;4(1):38-66. https://doi.org/10.1007/s40806-017-0112-x

7. Broyd SJ, Demanuele C, Debener S, et al. Default-mode brain dysfunction in mental disorders: a systematic review. Neurosci Biobehav Rev. 2009;33(3):279-296. doi:10.1016/j.neubiorev.2008.09.002

8. Zhang R, Volkow ND. Brain default-mode network dysfunction in addiction. Neuroimage. 2019;200:313-331. doi:10.1016/j.neuroimage.2019.06.036

9. Bommersbach TJ, McKean AJ, Olfson M, et al. National trends in mental health-related emergency department visits among youth, 2011-2020. JAMA. 2023;329(17):1469-1477. doi:10.1001/jama.2023.4809

10. Whitfield-Gabrieli S, Ford JM. Default mode network activity and connectivity in psychopathology. Annu Rev Clin Psychol. 2012;8:49-76. doi:10.1146/annurev-clinpsy-032511-143049

11. Akiki TJ, Averill CL, Wrocklage KM, et al. Default mode network abnormalities in posttraumatic stress disorder: a novel network-restricted topology approach. Neuroimage. 2018;176:489-498. doi:10.1016/j.neuroimage.2018.05.005

12. Nagata JM, Chu J, Zamora G, et al. Screen time and obsessive-compulsive disorder among children 9-10 years old: a prospective cohort study. J Adolesc Health. 2023;72(3):390-396. doi:10.1016/j.jadohealth.2022.10.023

13. Fox KC, Nijeboer S, Dixon ML, et al. Is meditation associated with altered brain structure? A systematic review and meta-analysis of morphometric neuroimaging in meditation practitioners. Neurosci Biobehav Rev. 2014;43:48-73. doi:10.1016/j.neubiorev.2014.03.016

14. Gattuso JJ, Perkins D, Ruffell S, et al. Default mode network modulation by psychedelics: a systematic review. Int J Neuropsychopharmacol. 2023;26(3):155-188. doi:10.1093/ijnp/pyac074

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The advent of unprecedented technologies drastically altering the behavior of children and adolescents, compounded by prolonged isolation from a once-in-a-century pandemic, may have negatively impacted the normal connectivity of the human brain among youth, leading to the current alarming increase of depression, anxiety, and suicidality among this population.

The human brain is comprised of multiple large-scale networks that are functionally connected and control feelings, thoughts, and behaviors. As clinical neuroscientists, psychiatrists must consider the profound impact of a massive societal shift in human behavior on the functional connectivity of brain networks in health and disease. The advent of smartphones, social media, and video game addiction may have disrupted the developing brain networks in children and adolescents, leading to the current escalating epidemic of mental disorders in youth.

The major networks in the human brain include the default mode network (DMN), the salience network, the limbic system, the dorsal attention network, the central executive network, and the visual system.1 Each network connects several brain regions. Researchers can use functional MRI to detect the connectivity of those networks. When blood flow increases concurrently across 2 or 3 networks, this indicates those networks are functionally connected.

There was an old “dogma” that brain regions use energy only when activated and being used. Hans Berger, who developed the EEG in 1929, noticed electrical activity at rest and proposed that the brain is constantly busy, but his neurology peers did not take him seriously.2 In the 1950s, Louis Sokoloff noticed that brain metabolism was the same whether a person is at rest or doing math. In the 1970s, David Ingvar discovered that the highest blood flow in the frontal lobe occurred when a person was at rest.3 Finally, in 2007, Raichle et al4 used positron emission tomography scans to confirm that the frontal lobe is most active when a person is not doing anything. He labeled this phenomenon the DMN, comprising the medial fronto-parietal cortex, the posterior cingulate gyrus, the precuneus, and the angular gyrus. Interestingly, the number of publications about the DMN has skyrocketed since 2007.

The many roles of the DMN

Ongoing research has revealed that the DMN is most active at rest, and its anatomical hubs mediate several key functions5:

  • Posterior cingulate gyrus (the central core of the DMN): remembering the past and thinking about the future
  • Medial prefrontal cortex: autobiographical memories, future goals and events, reflecting on one’s emotional self, and considering decisions about family members
  • Dorsal medial subsystem: thinking about others, determining and inferring the purpose of other people’s actions
  • Temporo-parietal junction: reflecting on the beliefs and emotions of others (known as “theory of mind”6)
  • Lateral parietal junction: retrieval of social and conceptual knowledge
  • Hippocampus: forming new memories, remembering the past, imagining the future
  • Posterior-inferior parietal lobe: junction of auditory, visual, and somatic sensory information and attention
  • Precuneus: Visual, sensory-motor, and attention.

Many terms have been used to describe the function of the DMN, including “daydreaming,” “auto-pilot,” “mind-wondering,” “reminiscing,” “contemplating,” “self-reflection,” “the neurological basis of the self,” and “seat of literary creativity.”

Psychiatric consequences of DMN deactivation

When another brain network, the attention network (which is also referred to as the task-positive network), is activated consciously and volitionally to perform a task that demands focus (such as text messaging, playing video games, or continuously interacting with social media sites), DMN activity declines.

Continue to: The DMN does not exist...

 

 

The DMN does not exist in infants, but starts to develop in childhood.7 It is enhanced by exercise, daydreaming, and sleep, activities that are common in childhood but have declined drastically with the widespread use of smartphones, video games, and social media, which for many youth occupy the bulk of their waking hours. Those tasks, which require continuous attention, deactivate the DMN. In fact, research has shown that addictive behavior decreases the connectivity of the DMN and suppresses its activity.8 Most children and adolescents can be regarded as essentially addicted to social media, text messaging, and video games. Unsurprisingly, serious psychiatric consequences follow.9

DMN dysfunction has been reported in several psychiatric conditions, including depression, posttraumatic stress disorder, autism, schizophrenia, anxiety, obsessive-compulsive disorder, and substance use.10-12 Impaired social interactions and communications, negative ruminations, suicidal ideas, and impaired encoding of long-term memories are some of the adverse effects of DMN dysfunction. The good news is that the DMN’s connectivity and functioning can be modulated and restored by meditation, mentalizing, exercise, psychotherapy, antidepressants, and psychedelics.13,14

The lockdown and stress of the COVID-19 pandemic added insult to injury and exacerbated mental illness in children by isolating them from each other and intensifying their technological addiction to fill the void of isolation. This crisis in youth mental health continues unabated, and calls for action to prevent grim outcomes. DMN dysfunction in youth can be reversed with treatment, but access to mental health care has become more challenging due to workforce shortages and insurance restrictions. Psychiatrists and parents must work diligently to treat psychiatrically affected youth, which has become a DaMN serious problem…

The advent of unprecedented technologies drastically altering the behavior of children and adolescents, compounded by prolonged isolation from a once-in-a-century pandemic, may have negatively impacted the normal connectivity of the human brain among youth, leading to the current alarming increase of depression, anxiety, and suicidality among this population.

The human brain is comprised of multiple large-scale networks that are functionally connected and control feelings, thoughts, and behaviors. As clinical neuroscientists, psychiatrists must consider the profound impact of a massive societal shift in human behavior on the functional connectivity of brain networks in health and disease. The advent of smartphones, social media, and video game addiction may have disrupted the developing brain networks in children and adolescents, leading to the current escalating epidemic of mental disorders in youth.

The major networks in the human brain include the default mode network (DMN), the salience network, the limbic system, the dorsal attention network, the central executive network, and the visual system.1 Each network connects several brain regions. Researchers can use functional MRI to detect the connectivity of those networks. When blood flow increases concurrently across 2 or 3 networks, this indicates those networks are functionally connected.

There was an old “dogma” that brain regions use energy only when activated and being used. Hans Berger, who developed the EEG in 1929, noticed electrical activity at rest and proposed that the brain is constantly busy, but his neurology peers did not take him seriously.2 In the 1950s, Louis Sokoloff noticed that brain metabolism was the same whether a person is at rest or doing math. In the 1970s, David Ingvar discovered that the highest blood flow in the frontal lobe occurred when a person was at rest.3 Finally, in 2007, Raichle et al4 used positron emission tomography scans to confirm that the frontal lobe is most active when a person is not doing anything. He labeled this phenomenon the DMN, comprising the medial fronto-parietal cortex, the posterior cingulate gyrus, the precuneus, and the angular gyrus. Interestingly, the number of publications about the DMN has skyrocketed since 2007.

The many roles of the DMN

Ongoing research has revealed that the DMN is most active at rest, and its anatomical hubs mediate several key functions5:

  • Posterior cingulate gyrus (the central core of the DMN): remembering the past and thinking about the future
  • Medial prefrontal cortex: autobiographical memories, future goals and events, reflecting on one’s emotional self, and considering decisions about family members
  • Dorsal medial subsystem: thinking about others, determining and inferring the purpose of other people’s actions
  • Temporo-parietal junction: reflecting on the beliefs and emotions of others (known as “theory of mind”6)
  • Lateral parietal junction: retrieval of social and conceptual knowledge
  • Hippocampus: forming new memories, remembering the past, imagining the future
  • Posterior-inferior parietal lobe: junction of auditory, visual, and somatic sensory information and attention
  • Precuneus: Visual, sensory-motor, and attention.

Many terms have been used to describe the function of the DMN, including “daydreaming,” “auto-pilot,” “mind-wondering,” “reminiscing,” “contemplating,” “self-reflection,” “the neurological basis of the self,” and “seat of literary creativity.”

Psychiatric consequences of DMN deactivation

When another brain network, the attention network (which is also referred to as the task-positive network), is activated consciously and volitionally to perform a task that demands focus (such as text messaging, playing video games, or continuously interacting with social media sites), DMN activity declines.

Continue to: The DMN does not exist...

 

 

The DMN does not exist in infants, but starts to develop in childhood.7 It is enhanced by exercise, daydreaming, and sleep, activities that are common in childhood but have declined drastically with the widespread use of smartphones, video games, and social media, which for many youth occupy the bulk of their waking hours. Those tasks, which require continuous attention, deactivate the DMN. In fact, research has shown that addictive behavior decreases the connectivity of the DMN and suppresses its activity.8 Most children and adolescents can be regarded as essentially addicted to social media, text messaging, and video games. Unsurprisingly, serious psychiatric consequences follow.9

DMN dysfunction has been reported in several psychiatric conditions, including depression, posttraumatic stress disorder, autism, schizophrenia, anxiety, obsessive-compulsive disorder, and substance use.10-12 Impaired social interactions and communications, negative ruminations, suicidal ideas, and impaired encoding of long-term memories are some of the adverse effects of DMN dysfunction. The good news is that the DMN’s connectivity and functioning can be modulated and restored by meditation, mentalizing, exercise, psychotherapy, antidepressants, and psychedelics.13,14

The lockdown and stress of the COVID-19 pandemic added insult to injury and exacerbated mental illness in children by isolating them from each other and intensifying their technological addiction to fill the void of isolation. This crisis in youth mental health continues unabated, and calls for action to prevent grim outcomes. DMN dysfunction in youth can be reversed with treatment, but access to mental health care has become more challenging due to workforce shortages and insurance restrictions. Psychiatrists and parents must work diligently to treat psychiatrically affected youth, which has become a DaMN serious problem…

References

1. Yao Z, Hu B, Xie Y, et al. A review of structural and functional brain networks: small world and atlas. Brain Inform. 2015;2(1):45-52. doi:10.1007/s40708-015-0009-z

2. Raichle ME. The brain’s dark energy. Sci Am. 2010;302(3):44-49. doi:10.1038/scientific american0310-44

3. Buckner RL, Andrews-Hanna JR, Schacter DL. The brain’s default network: anatomy, function, and relevance to disease. Ann N Y Acad Sci. 2008;1124:1-38. doi:10.1196/annals.1440.011

4. Raichle ME, Snyder AZ. A default mode of brain function: a brief history of an evolving idea. Neuroimage. 2007;37(4):1083-1090; discussion 1097-1099. doi:10.1016/j.neuroimage.2007.02.041

5. Andrews-Hanna JR. The brain’s default network and its adaptive role in internal mentation. Neuroscientist. 2012;18(3):251-270. doi:10.1177/1073858411403316

6. Tsoukalas I. Theory of mind: towards an evolutionary theory. Evolutionary Psychological Science. 2018;4(1):38-66. https://doi.org/10.1007/s40806-017-0112-x

7. Broyd SJ, Demanuele C, Debener S, et al. Default-mode brain dysfunction in mental disorders: a systematic review. Neurosci Biobehav Rev. 2009;33(3):279-296. doi:10.1016/j.neubiorev.2008.09.002

8. Zhang R, Volkow ND. Brain default-mode network dysfunction in addiction. Neuroimage. 2019;200:313-331. doi:10.1016/j.neuroimage.2019.06.036

9. Bommersbach TJ, McKean AJ, Olfson M, et al. National trends in mental health-related emergency department visits among youth, 2011-2020. JAMA. 2023;329(17):1469-1477. doi:10.1001/jama.2023.4809

10. Whitfield-Gabrieli S, Ford JM. Default mode network activity and connectivity in psychopathology. Annu Rev Clin Psychol. 2012;8:49-76. doi:10.1146/annurev-clinpsy-032511-143049

11. Akiki TJ, Averill CL, Wrocklage KM, et al. Default mode network abnormalities in posttraumatic stress disorder: a novel network-restricted topology approach. Neuroimage. 2018;176:489-498. doi:10.1016/j.neuroimage.2018.05.005

12. Nagata JM, Chu J, Zamora G, et al. Screen time and obsessive-compulsive disorder among children 9-10 years old: a prospective cohort study. J Adolesc Health. 2023;72(3):390-396. doi:10.1016/j.jadohealth.2022.10.023

13. Fox KC, Nijeboer S, Dixon ML, et al. Is meditation associated with altered brain structure? A systematic review and meta-analysis of morphometric neuroimaging in meditation practitioners. Neurosci Biobehav Rev. 2014;43:48-73. doi:10.1016/j.neubiorev.2014.03.016

14. Gattuso JJ, Perkins D, Ruffell S, et al. Default mode network modulation by psychedelics: a systematic review. Int J Neuropsychopharmacol. 2023;26(3):155-188. doi:10.1093/ijnp/pyac074

References

1. Yao Z, Hu B, Xie Y, et al. A review of structural and functional brain networks: small world and atlas. Brain Inform. 2015;2(1):45-52. doi:10.1007/s40708-015-0009-z

2. Raichle ME. The brain’s dark energy. Sci Am. 2010;302(3):44-49. doi:10.1038/scientific american0310-44

3. Buckner RL, Andrews-Hanna JR, Schacter DL. The brain’s default network: anatomy, function, and relevance to disease. Ann N Y Acad Sci. 2008;1124:1-38. doi:10.1196/annals.1440.011

4. Raichle ME, Snyder AZ. A default mode of brain function: a brief history of an evolving idea. Neuroimage. 2007;37(4):1083-1090; discussion 1097-1099. doi:10.1016/j.neuroimage.2007.02.041

5. Andrews-Hanna JR. The brain’s default network and its adaptive role in internal mentation. Neuroscientist. 2012;18(3):251-270. doi:10.1177/1073858411403316

6. Tsoukalas I. Theory of mind: towards an evolutionary theory. Evolutionary Psychological Science. 2018;4(1):38-66. https://doi.org/10.1007/s40806-017-0112-x

7. Broyd SJ, Demanuele C, Debener S, et al. Default-mode brain dysfunction in mental disorders: a systematic review. Neurosci Biobehav Rev. 2009;33(3):279-296. doi:10.1016/j.neubiorev.2008.09.002

8. Zhang R, Volkow ND. Brain default-mode network dysfunction in addiction. Neuroimage. 2019;200:313-331. doi:10.1016/j.neuroimage.2019.06.036

9. Bommersbach TJ, McKean AJ, Olfson M, et al. National trends in mental health-related emergency department visits among youth, 2011-2020. JAMA. 2023;329(17):1469-1477. doi:10.1001/jama.2023.4809

10. Whitfield-Gabrieli S, Ford JM. Default mode network activity and connectivity in psychopathology. Annu Rev Clin Psychol. 2012;8:49-76. doi:10.1146/annurev-clinpsy-032511-143049

11. Akiki TJ, Averill CL, Wrocklage KM, et al. Default mode network abnormalities in posttraumatic stress disorder: a novel network-restricted topology approach. Neuroimage. 2018;176:489-498. doi:10.1016/j.neuroimage.2018.05.005

12. Nagata JM, Chu J, Zamora G, et al. Screen time and obsessive-compulsive disorder among children 9-10 years old: a prospective cohort study. J Adolesc Health. 2023;72(3):390-396. doi:10.1016/j.jadohealth.2022.10.023

13. Fox KC, Nijeboer S, Dixon ML, et al. Is meditation associated with altered brain structure? A systematic review and meta-analysis of morphometric neuroimaging in meditation practitioners. Neurosci Biobehav Rev. 2014;43:48-73. doi:10.1016/j.neubiorev.2014.03.016

14. Gattuso JJ, Perkins D, Ruffell S, et al. Default mode network modulation by psychedelics: a systematic review. Int J Neuropsychopharmacol. 2023;26(3):155-188. doi:10.1093/ijnp/pyac074

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Dysphagia in a patient with schizophrenia: Is the antipsychotic the culprit?

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Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry . All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].

Mr. N, age 58, has a history of schizophrenia, tobacco use disorder, and alcohol use disorder. For many years, Mr. N has been receiving IM olanzapine 2.5 mg/d to treat his schizophrenia. He lives in a psychiatric hospital but was sent to our hospital after being found to have severe oropharyngeal dysphasia on a modified barium swallow study. There was concern for aspiration due to a history of choking episodes, which had been occurring for almost 1 month. During the modified barium swallow study, Mr. N was noted to have aspiration with deep laryngeal penetration during the pharyngeal stages of swallowing to all consistencies; this did not improve with the chin-tuck maneuver. In addition, during a CT scan of the cervical spine, an osteophyte was noted at the C5-C6 level, with possible impingement of the cervical esophagus and decreased upper esophageal sphincter opening.

Due to these findings, Mr. N was sent to our emergency department (ED) for further evaluation. In the ED, his vital signs were stable. He endorsed having a cough after eating, a sensation of having food stuck in his throat, and some hoarseness. His physical examination was notable for poor dentition. Results of a standard laboratory workup were all within normal limits. X-ray was notable for hazy opacities in the right upper to mid lung zones. Mr. N was admitted to the medical unit for further evaluation and management.

Narrowing the diagnosis

Because Mr. N was aspirating both liquids and solids, it was imperative that we identify the cause as soon as possible. The consultations that followed slowly guided the treatment team toward a diagnosis of antipsychotic-induced dysphagia. Otolaryngology identified insensate larynx during a flexible fiberoptic laryngoscopy exam, which was highly suggestive of a neurological dysfunction such as dystonia. Furthermore, an esophagogastroduodenoscopy found no structural abnormalities to explain Mr. N’s dysphagia, which ruled out impingement of the cervical esophagus by the osteophyte. An MRI of the brain ruled out structural abnormalities or evidence of stroke. Finally, a speech and language pathologist confirmed decreased laryngeal closure and airway protection with a repeat modified barium swallow, which led to aspiration during swallowing. Psychiatry recommended starting diphenhydramine to treat Mr. N’s extrapyramidal symptoms (EPS). A 6-day trial was initiated, with a single 50 mg IV dose on the first day followed by 25 mL oral twice daily for the remaining 5 days. In addition, olanzapine was discontinued.

Switching to a different diet and antipsychotic

Two days after starting diphenhydramine, Mr. N was switched to a puree diet. His ability to swallow improved, and he no longer coughed. However, on repeat modified barium swallow, aspiration was still noted for all types of liquids and solids. No structural improvements were seen.

Mr. N was discharged back to his psychiatric hospital, and his antipsychotic was changed from olanzapine to oral aripiprazole 2 mg/d. The aripiprazole dose was kept low to prevent the recurrence of dystonia and because at the time, his schizophrenia was asymptomatic. Mr. N was also prescribed oral diphenhydramine 25 mL twice daily.

At a 2-week follow-up appointment, Mr. N continued to show clinical improvement on the puree diet with thin liquids and continued the prescribed medication regimen.

Dysphagia as a manifestation of EPS

All antipsychotics, and particularly first-generation agents, are associated with EPS.1 These symptoms may be the result of antagonistic binding of dopaminergic D2 receptors within mesolimbic and mesocortical pathways of the brain, as well as parts of basal ganglia such as the caudate nucleus.2

In addition to the examples listed in the Table,2 EPS can present as dysphagia, esophageal dysmotility, or aspiration, none of which may be recognized as EPS. Research has found haloperidol, loxapine, trifluoperazine, olanzapine, risperidone, quetiapine, clozapine, and aripiprazole are associated with dysphagia.3-6 Strategies to treat antipsychotic-induced dysphagia include discontinuing the antipsychotic, lowering the dose, and changing to another medication.7

Treating extrapyramidal symptoms

References

1. Crouse EL, Alastanos JN, Bozymski KM, et al. Dysphagia with second-generation antipsychotics: a case report and review of the literature. Ment Health Clin. 2018;7(2):56-64. doi:10.9740/mhc.2017.03.056

2. D’Souza RS, Hooten WM. Extrapyramidal symptoms. StatPearls Publishing; 2022. Updated January 8, 2023. Accessed April 28, 2023. https://www.ncbi.nlm.nih.gov/books/NBK534115/

3. Dziewas R, Warnecke T, Schnabel M, et al. Neuroleptic-induced dysphagia: case report and literature review. Dysphagia. 2007;22(1):63-67. doi:10.1007/s00455-006-9032-9

4. Kalf JG, de Swart BJ, Bloem BR, et al. Prevalence of oropharyngeal dysphagia in Parkinson’s disease: a meta-analysis. Parkinsonism Relat Disord. 2012;18(4):311-315. doi:10.1016/j.parkreldis.2011.11.006

5. Lin TW, Lee BS, Liao YC, et al. High dosage of aripiprazole-induced dysphagia. Int J Eat Disord. 2012;45(2):305-306. doi:10.1002/eat.20934

6. Stewart JT. Dysphagia associated with risperidone therapy. Dysphagia. 2003;18(4):274-275. doi:10.1007/s00455-003-0006-x

7. Lee JC, Takeshita J. Antipsychotic-induced dysphagia: a case report. Prim Care Companion CNS Disord. 2015;17(5):10.4088/PCC.15I01792. doi:10.4088/PCC.15I01792

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Mr. Lee is a 4th-year medical student, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Nicoli de Mattos is a PGY-2 Psychiatry Resident, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Castro is Assistant Professor, Department of Medicine, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Jarmon is Assistant Professor, Department of Psychiatry, Rutgers New Jersey Medical School, Newark, New Jersey.

Disclosures
The authors report no financial relationships with any companies whose products are mentioned in this article, or with manufacturers of competing products.

Author and Disclosure Information

Mr. Lee is a 4th-year medical student, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Nicoli de Mattos is a PGY-2 Psychiatry Resident, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Castro is Assistant Professor, Department of Medicine, Rutgers New Jersey Medical School, Newark, New Jersey. Dr. Jarmon is Assistant Professor, Department of Psychiatry, Rutgers New Jersey Medical School, Newark, New Jersey.

Disclosures
The authors report no financial relationships with any companies whose products are mentioned in this article, or with manufacturers of competing products.

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Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry . All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].

Mr. N, age 58, has a history of schizophrenia, tobacco use disorder, and alcohol use disorder. For many years, Mr. N has been receiving IM olanzapine 2.5 mg/d to treat his schizophrenia. He lives in a psychiatric hospital but was sent to our hospital after being found to have severe oropharyngeal dysphasia on a modified barium swallow study. There was concern for aspiration due to a history of choking episodes, which had been occurring for almost 1 month. During the modified barium swallow study, Mr. N was noted to have aspiration with deep laryngeal penetration during the pharyngeal stages of swallowing to all consistencies; this did not improve with the chin-tuck maneuver. In addition, during a CT scan of the cervical spine, an osteophyte was noted at the C5-C6 level, with possible impingement of the cervical esophagus and decreased upper esophageal sphincter opening.

Due to these findings, Mr. N was sent to our emergency department (ED) for further evaluation. In the ED, his vital signs were stable. He endorsed having a cough after eating, a sensation of having food stuck in his throat, and some hoarseness. His physical examination was notable for poor dentition. Results of a standard laboratory workup were all within normal limits. X-ray was notable for hazy opacities in the right upper to mid lung zones. Mr. N was admitted to the medical unit for further evaluation and management.

Narrowing the diagnosis

Because Mr. N was aspirating both liquids and solids, it was imperative that we identify the cause as soon as possible. The consultations that followed slowly guided the treatment team toward a diagnosis of antipsychotic-induced dysphagia. Otolaryngology identified insensate larynx during a flexible fiberoptic laryngoscopy exam, which was highly suggestive of a neurological dysfunction such as dystonia. Furthermore, an esophagogastroduodenoscopy found no structural abnormalities to explain Mr. N’s dysphagia, which ruled out impingement of the cervical esophagus by the osteophyte. An MRI of the brain ruled out structural abnormalities or evidence of stroke. Finally, a speech and language pathologist confirmed decreased laryngeal closure and airway protection with a repeat modified barium swallow, which led to aspiration during swallowing. Psychiatry recommended starting diphenhydramine to treat Mr. N’s extrapyramidal symptoms (EPS). A 6-day trial was initiated, with a single 50 mg IV dose on the first day followed by 25 mL oral twice daily for the remaining 5 days. In addition, olanzapine was discontinued.

Switching to a different diet and antipsychotic

Two days after starting diphenhydramine, Mr. N was switched to a puree diet. His ability to swallow improved, and he no longer coughed. However, on repeat modified barium swallow, aspiration was still noted for all types of liquids and solids. No structural improvements were seen.

Mr. N was discharged back to his psychiatric hospital, and his antipsychotic was changed from olanzapine to oral aripiprazole 2 mg/d. The aripiprazole dose was kept low to prevent the recurrence of dystonia and because at the time, his schizophrenia was asymptomatic. Mr. N was also prescribed oral diphenhydramine 25 mL twice daily.

At a 2-week follow-up appointment, Mr. N continued to show clinical improvement on the puree diet with thin liquids and continued the prescribed medication regimen.

Dysphagia as a manifestation of EPS

All antipsychotics, and particularly first-generation agents, are associated with EPS.1 These symptoms may be the result of antagonistic binding of dopaminergic D2 receptors within mesolimbic and mesocortical pathways of the brain, as well as parts of basal ganglia such as the caudate nucleus.2

In addition to the examples listed in the Table,2 EPS can present as dysphagia, esophageal dysmotility, or aspiration, none of which may be recognized as EPS. Research has found haloperidol, loxapine, trifluoperazine, olanzapine, risperidone, quetiapine, clozapine, and aripiprazole are associated with dysphagia.3-6 Strategies to treat antipsychotic-induced dysphagia include discontinuing the antipsychotic, lowering the dose, and changing to another medication.7

Treating extrapyramidal symptoms

Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry . All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].

Mr. N, age 58, has a history of schizophrenia, tobacco use disorder, and alcohol use disorder. For many years, Mr. N has been receiving IM olanzapine 2.5 mg/d to treat his schizophrenia. He lives in a psychiatric hospital but was sent to our hospital after being found to have severe oropharyngeal dysphasia on a modified barium swallow study. There was concern for aspiration due to a history of choking episodes, which had been occurring for almost 1 month. During the modified barium swallow study, Mr. N was noted to have aspiration with deep laryngeal penetration during the pharyngeal stages of swallowing to all consistencies; this did not improve with the chin-tuck maneuver. In addition, during a CT scan of the cervical spine, an osteophyte was noted at the C5-C6 level, with possible impingement of the cervical esophagus and decreased upper esophageal sphincter opening.

Due to these findings, Mr. N was sent to our emergency department (ED) for further evaluation. In the ED, his vital signs were stable. He endorsed having a cough after eating, a sensation of having food stuck in his throat, and some hoarseness. His physical examination was notable for poor dentition. Results of a standard laboratory workup were all within normal limits. X-ray was notable for hazy opacities in the right upper to mid lung zones. Mr. N was admitted to the medical unit for further evaluation and management.

Narrowing the diagnosis

Because Mr. N was aspirating both liquids and solids, it was imperative that we identify the cause as soon as possible. The consultations that followed slowly guided the treatment team toward a diagnosis of antipsychotic-induced dysphagia. Otolaryngology identified insensate larynx during a flexible fiberoptic laryngoscopy exam, which was highly suggestive of a neurological dysfunction such as dystonia. Furthermore, an esophagogastroduodenoscopy found no structural abnormalities to explain Mr. N’s dysphagia, which ruled out impingement of the cervical esophagus by the osteophyte. An MRI of the brain ruled out structural abnormalities or evidence of stroke. Finally, a speech and language pathologist confirmed decreased laryngeal closure and airway protection with a repeat modified barium swallow, which led to aspiration during swallowing. Psychiatry recommended starting diphenhydramine to treat Mr. N’s extrapyramidal symptoms (EPS). A 6-day trial was initiated, with a single 50 mg IV dose on the first day followed by 25 mL oral twice daily for the remaining 5 days. In addition, olanzapine was discontinued.

Switching to a different diet and antipsychotic

Two days after starting diphenhydramine, Mr. N was switched to a puree diet. His ability to swallow improved, and he no longer coughed. However, on repeat modified barium swallow, aspiration was still noted for all types of liquids and solids. No structural improvements were seen.

Mr. N was discharged back to his psychiatric hospital, and his antipsychotic was changed from olanzapine to oral aripiprazole 2 mg/d. The aripiprazole dose was kept low to prevent the recurrence of dystonia and because at the time, his schizophrenia was asymptomatic. Mr. N was also prescribed oral diphenhydramine 25 mL twice daily.

At a 2-week follow-up appointment, Mr. N continued to show clinical improvement on the puree diet with thin liquids and continued the prescribed medication regimen.

Dysphagia as a manifestation of EPS

All antipsychotics, and particularly first-generation agents, are associated with EPS.1 These symptoms may be the result of antagonistic binding of dopaminergic D2 receptors within mesolimbic and mesocortical pathways of the brain, as well as parts of basal ganglia such as the caudate nucleus.2

In addition to the examples listed in the Table,2 EPS can present as dysphagia, esophageal dysmotility, or aspiration, none of which may be recognized as EPS. Research has found haloperidol, loxapine, trifluoperazine, olanzapine, risperidone, quetiapine, clozapine, and aripiprazole are associated with dysphagia.3-6 Strategies to treat antipsychotic-induced dysphagia include discontinuing the antipsychotic, lowering the dose, and changing to another medication.7

Treating extrapyramidal symptoms

References

1. Crouse EL, Alastanos JN, Bozymski KM, et al. Dysphagia with second-generation antipsychotics: a case report and review of the literature. Ment Health Clin. 2018;7(2):56-64. doi:10.9740/mhc.2017.03.056

2. D’Souza RS, Hooten WM. Extrapyramidal symptoms. StatPearls Publishing; 2022. Updated January 8, 2023. Accessed April 28, 2023. https://www.ncbi.nlm.nih.gov/books/NBK534115/

3. Dziewas R, Warnecke T, Schnabel M, et al. Neuroleptic-induced dysphagia: case report and literature review. Dysphagia. 2007;22(1):63-67. doi:10.1007/s00455-006-9032-9

4. Kalf JG, de Swart BJ, Bloem BR, et al. Prevalence of oropharyngeal dysphagia in Parkinson’s disease: a meta-analysis. Parkinsonism Relat Disord. 2012;18(4):311-315. doi:10.1016/j.parkreldis.2011.11.006

5. Lin TW, Lee BS, Liao YC, et al. High dosage of aripiprazole-induced dysphagia. Int J Eat Disord. 2012;45(2):305-306. doi:10.1002/eat.20934

6. Stewart JT. Dysphagia associated with risperidone therapy. Dysphagia. 2003;18(4):274-275. doi:10.1007/s00455-003-0006-x

7. Lee JC, Takeshita J. Antipsychotic-induced dysphagia: a case report. Prim Care Companion CNS Disord. 2015;17(5):10.4088/PCC.15I01792. doi:10.4088/PCC.15I01792

References

1. Crouse EL, Alastanos JN, Bozymski KM, et al. Dysphagia with second-generation antipsychotics: a case report and review of the literature. Ment Health Clin. 2018;7(2):56-64. doi:10.9740/mhc.2017.03.056

2. D’Souza RS, Hooten WM. Extrapyramidal symptoms. StatPearls Publishing; 2022. Updated January 8, 2023. Accessed April 28, 2023. https://www.ncbi.nlm.nih.gov/books/NBK534115/

3. Dziewas R, Warnecke T, Schnabel M, et al. Neuroleptic-induced dysphagia: case report and literature review. Dysphagia. 2007;22(1):63-67. doi:10.1007/s00455-006-9032-9

4. Kalf JG, de Swart BJ, Bloem BR, et al. Prevalence of oropharyngeal dysphagia in Parkinson’s disease: a meta-analysis. Parkinsonism Relat Disord. 2012;18(4):311-315. doi:10.1016/j.parkreldis.2011.11.006

5. Lin TW, Lee BS, Liao YC, et al. High dosage of aripiprazole-induced dysphagia. Int J Eat Disord. 2012;45(2):305-306. doi:10.1002/eat.20934

6. Stewart JT. Dysphagia associated with risperidone therapy. Dysphagia. 2003;18(4):274-275. doi:10.1007/s00455-003-0006-x

7. Lee JC, Takeshita J. Antipsychotic-induced dysphagia: a case report. Prim Care Companion CNS Disord. 2015;17(5):10.4088/PCC.15I01792. doi:10.4088/PCC.15I01792

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More on AI-generated content

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More on AI-generated content

In his recent editorial (“A ‘guest editorial’ … generated by ChatGPT?Current Psychiatry, April 2023, p. 6-7, doi:10.12788/cp.0348), Dr. Nasrallah asked for feedback on the ChatGPT-generated editorial on myths surrounding psychiatry. I found the “product” equivalent to a diligent high schooler’s homework assignment. ChatGPT lacks the nuance of a historical perspective, one that has observed the ever-changing enthusiasms (from Freud’s “cure” for posttraumatic stress disorder through dopamine, then 5HT, now glutamate and psychedelics) because mental illness is so difficult to treat. For the guest editorial on myths, a little googling would have yielded the same content, if not a similar list of myths. Surely such an editorial would never be accepted in any psychiatry journal; maybe in Reader’s Digest!

Sara Hartley, MD
Berkeley, California

I just read the “guest editorial” generated by ChatGPT. Thank you for this article. Although this is truly an amazing advancement in artificial intelligence (AI), I feel this guest editorial was very basic. It did not read like scientific writing. It read more like it was written at an 11th- or 12th-grade level, though I am fully aware that the question was simple, and thus the answer was not very deep. I can’t deny that if I had been tested, chances are good I would have fallen among the 32% of my peers who would not have recognized it as AI. I appreciate that you (and your team) are working on a protocol regarding how to include content generated by or with the help of AI. God knows if (most likely, when) people with evil minds will use AI to spread false information that may dispute the accredited scientific data and research that guide the medical world and many other fields. I wonder if AI can serve as a search engine that is better or easier to use than PubMed (for example) and the other services we use for research and learning.

Alex Mustachi, PMHNP-BC
Suffern, New York

I wanted to let you know how much I enjoyed reading your recent editorial on AI and scientific writing. Sharing the 4 AI-generated “articles” with readers (“For artificial intelligence, the future is finally here,” Current Psychiatry, April 2023, p. 8-11,29, doi:10.12788/cp.0354) was a delightfully clever/engaging exercise. Other journals need to take a more proactive/targeted stand on this very important issue.

Martha Sajatovic, MD
Cleveland, Ohio

Continue to: The AI-generated samples...

 

 

The Al-generated samples were fascinating. As far as I superficially noted, the spelling, grammar, and punctuation were correct. That is better than one gets from most student compositions. However, the articles were completely lacking in depth or apparent insight. The article on anosognosia mentioned it can be present in up to 50% of cases of schizophrenia. In my experience, it is present in approximately 99.9% of cases. It clearly did not consider if anosognosia is also present in alcoholics, codependents, abusers, or people with bizarre political beliefs. But I guess the “intelligence” wasn’t asked that. The other samples also show shallow thinking and repetitive wording—pretty much like my high school junior compositions.

Maybe an appropriate use for AI is a task such as evaluating suicide notes. AI’s success causes one to feel nonplussed. Much more disconcerting was a recent news article that reported AI made up nonexistent references to a professor’s alleged sexual harassment, and then generated citations to its own made-up reference.1 That is indeed frightening new territory. How does one fight against a machine to clear their own name?

Linda Miller, NP
Harrisonburg, Virginia

References

1. Verma P, Oremus W. ChatGPT invented a sexual harassment scandal and named a real law prof as the accused. The Washington Post. April 5, 2023. Accessed May 8, 2023. https://www.washingtonpost.com/technology/2023/04/05/chatgpt-lies/

Thank you, Dr. Nasrallah, for your latest thought-provoking articles on AI. Time and again you provide the profession with cutting-edge, relevant food for thought. Caveat emptor, indeed.

Lawrence E. Cormier, MD
Denver, Colorado

Continue to: We read with interest...

 

 

We read with interest Dr. Nasrallah’s editorial that invited readers to share their take on the quality of an AI-generated writing sample. I (MZP) was a computational neuroscience major at Columbia University and was accepted to medical school in 2022 at age 19. I identify with the character traits common among many young tech entrepreneurs driving the AI revolution—social awkwardness; discomfort with subjective emotions; restricted areas of interest; algorithmic thinking; strict, naive idealism; and an obsession with data. To gain a deeper understanding of Sam Altman, the CEO of OpenAI (the company that created ChatGPT), we analyzed a 2.5-hour interview that MIT research scientist Lex Fridman conducted with Altman.1 As a result, we began to discern why AI-generated text feels so stiff and bland compared to the superior fluidity and expressiveness of human communication. As of now, the creation is a reflection of its creator.

Generally speaking, computer scientists are not warm and fuzzy types. Hence, ChatGPT strives to be neutral, accurate, and objective compared to more biased and fallible humans, and, consequently, its language lacks the emotive flair we have come to relish in normal human interactions. In the interview, Altman discusses several solutions that will soon raise the quality of ChatGPT’s currently deficient emotional quotient to approximate its superior IQ. Altruistically, Altman has opened ChatGPT to all, so we can freely interact and utilize its potential to increase our productivity exponentially. As a result, ChatGPT interfaces with millions of humans through RLHF (reinforcement learning from human feedback), which makes each iteration more in tune with our sensibilities.2 Another initiative Altman is undertaking is to depart his Silicon Valley bubble for a road trip to interact with “regular people” and gain a better sense of how to make ChatGPT more user-friendly.1

What’s so saddening about Dr. Nasrallah’s homework assignment is that he is asking us to evaluate with our mature adult standards an article that was written at the emotional stage of a child in early high school. But our hubris and complacency are entirely unfounded because ChatGPT is learning much faster than we ever could, and it will quickly surpass us all as it continues to evolve.

It is also quite disconcerting to hear how Altman is naively relying upon governmental regulation and corporate responsibility to manage the potential misuse of future artificial general intelligence for social, economic, and political control and upheaval. We know well the harmful effects of the internet and social media, particularly on our youth, yet our laws still lag far behind the fact that these technological innovations are simultaneously enhancing our knowledge while destroying our souls. As custodians of our world, dedicated to promoting and preserving mental well-being, we cannot wait much longer to intervene in properly parenting AI along its wisest developmental trajectory before it is too late.

Maxwell Zachary Price, BA
Nutley, New Jersey

Richard Louis Price, MD
New York, New York

References

1. Sam Altman: OpenAI CEO on GPT-4, ChatGPT, and the Future of AI. Lex Fridman Podcast #367. March 25, 2023. Accessed April 5, 2023. https://www.youtube.com/watch?v=L_Guz73e6fw

2. Heikkilä M. How OpenAI is trying to make ChatGPT safer and less biased. MIT Technology Review. Published February 21, 2023. Accessed April 5, 2023. https://www.technologyreview.com/2023/02/21/1068893/how-openai-is-trying-to-make-chatgpt-safer-and-less-biased/

Disclosures

The authors report no financial relationships with any companies whose products are mentioned in their letters, or with manufacturers of competing products.

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In his recent editorial (“A ‘guest editorial’ … generated by ChatGPT?Current Psychiatry, April 2023, p. 6-7, doi:10.12788/cp.0348), Dr. Nasrallah asked for feedback on the ChatGPT-generated editorial on myths surrounding psychiatry. I found the “product” equivalent to a diligent high schooler’s homework assignment. ChatGPT lacks the nuance of a historical perspective, one that has observed the ever-changing enthusiasms (from Freud’s “cure” for posttraumatic stress disorder through dopamine, then 5HT, now glutamate and psychedelics) because mental illness is so difficult to treat. For the guest editorial on myths, a little googling would have yielded the same content, if not a similar list of myths. Surely such an editorial would never be accepted in any psychiatry journal; maybe in Reader’s Digest!

Sara Hartley, MD
Berkeley, California

I just read the “guest editorial” generated by ChatGPT. Thank you for this article. Although this is truly an amazing advancement in artificial intelligence (AI), I feel this guest editorial was very basic. It did not read like scientific writing. It read more like it was written at an 11th- or 12th-grade level, though I am fully aware that the question was simple, and thus the answer was not very deep. I can’t deny that if I had been tested, chances are good I would have fallen among the 32% of my peers who would not have recognized it as AI. I appreciate that you (and your team) are working on a protocol regarding how to include content generated by or with the help of AI. God knows if (most likely, when) people with evil minds will use AI to spread false information that may dispute the accredited scientific data and research that guide the medical world and many other fields. I wonder if AI can serve as a search engine that is better or easier to use than PubMed (for example) and the other services we use for research and learning.

Alex Mustachi, PMHNP-BC
Suffern, New York

I wanted to let you know how much I enjoyed reading your recent editorial on AI and scientific writing. Sharing the 4 AI-generated “articles” with readers (“For artificial intelligence, the future is finally here,” Current Psychiatry, April 2023, p. 8-11,29, doi:10.12788/cp.0354) was a delightfully clever/engaging exercise. Other journals need to take a more proactive/targeted stand on this very important issue.

Martha Sajatovic, MD
Cleveland, Ohio

Continue to: The AI-generated samples...

 

 

The Al-generated samples were fascinating. As far as I superficially noted, the spelling, grammar, and punctuation were correct. That is better than one gets from most student compositions. However, the articles were completely lacking in depth or apparent insight. The article on anosognosia mentioned it can be present in up to 50% of cases of schizophrenia. In my experience, it is present in approximately 99.9% of cases. It clearly did not consider if anosognosia is also present in alcoholics, codependents, abusers, or people with bizarre political beliefs. But I guess the “intelligence” wasn’t asked that. The other samples also show shallow thinking and repetitive wording—pretty much like my high school junior compositions.

Maybe an appropriate use for AI is a task such as evaluating suicide notes. AI’s success causes one to feel nonplussed. Much more disconcerting was a recent news article that reported AI made up nonexistent references to a professor’s alleged sexual harassment, and then generated citations to its own made-up reference.1 That is indeed frightening new territory. How does one fight against a machine to clear their own name?

Linda Miller, NP
Harrisonburg, Virginia

References

1. Verma P, Oremus W. ChatGPT invented a sexual harassment scandal and named a real law prof as the accused. The Washington Post. April 5, 2023. Accessed May 8, 2023. https://www.washingtonpost.com/technology/2023/04/05/chatgpt-lies/

Thank you, Dr. Nasrallah, for your latest thought-provoking articles on AI. Time and again you provide the profession with cutting-edge, relevant food for thought. Caveat emptor, indeed.

Lawrence E. Cormier, MD
Denver, Colorado

Continue to: We read with interest...

 

 

We read with interest Dr. Nasrallah’s editorial that invited readers to share their take on the quality of an AI-generated writing sample. I (MZP) was a computational neuroscience major at Columbia University and was accepted to medical school in 2022 at age 19. I identify with the character traits common among many young tech entrepreneurs driving the AI revolution—social awkwardness; discomfort with subjective emotions; restricted areas of interest; algorithmic thinking; strict, naive idealism; and an obsession with data. To gain a deeper understanding of Sam Altman, the CEO of OpenAI (the company that created ChatGPT), we analyzed a 2.5-hour interview that MIT research scientist Lex Fridman conducted with Altman.1 As a result, we began to discern why AI-generated text feels so stiff and bland compared to the superior fluidity and expressiveness of human communication. As of now, the creation is a reflection of its creator.

Generally speaking, computer scientists are not warm and fuzzy types. Hence, ChatGPT strives to be neutral, accurate, and objective compared to more biased and fallible humans, and, consequently, its language lacks the emotive flair we have come to relish in normal human interactions. In the interview, Altman discusses several solutions that will soon raise the quality of ChatGPT’s currently deficient emotional quotient to approximate its superior IQ. Altruistically, Altman has opened ChatGPT to all, so we can freely interact and utilize its potential to increase our productivity exponentially. As a result, ChatGPT interfaces with millions of humans through RLHF (reinforcement learning from human feedback), which makes each iteration more in tune with our sensibilities.2 Another initiative Altman is undertaking is to depart his Silicon Valley bubble for a road trip to interact with “regular people” and gain a better sense of how to make ChatGPT more user-friendly.1

What’s so saddening about Dr. Nasrallah’s homework assignment is that he is asking us to evaluate with our mature adult standards an article that was written at the emotional stage of a child in early high school. But our hubris and complacency are entirely unfounded because ChatGPT is learning much faster than we ever could, and it will quickly surpass us all as it continues to evolve.

It is also quite disconcerting to hear how Altman is naively relying upon governmental regulation and corporate responsibility to manage the potential misuse of future artificial general intelligence for social, economic, and political control and upheaval. We know well the harmful effects of the internet and social media, particularly on our youth, yet our laws still lag far behind the fact that these technological innovations are simultaneously enhancing our knowledge while destroying our souls. As custodians of our world, dedicated to promoting and preserving mental well-being, we cannot wait much longer to intervene in properly parenting AI along its wisest developmental trajectory before it is too late.

Maxwell Zachary Price, BA
Nutley, New Jersey

Richard Louis Price, MD
New York, New York

References

1. Sam Altman: OpenAI CEO on GPT-4, ChatGPT, and the Future of AI. Lex Fridman Podcast #367. March 25, 2023. Accessed April 5, 2023. https://www.youtube.com/watch?v=L_Guz73e6fw

2. Heikkilä M. How OpenAI is trying to make ChatGPT safer and less biased. MIT Technology Review. Published February 21, 2023. Accessed April 5, 2023. https://www.technologyreview.com/2023/02/21/1068893/how-openai-is-trying-to-make-chatgpt-safer-and-less-biased/

Disclosures

The authors report no financial relationships with any companies whose products are mentioned in their letters, or with manufacturers of competing products.

In his recent editorial (“A ‘guest editorial’ … generated by ChatGPT?Current Psychiatry, April 2023, p. 6-7, doi:10.12788/cp.0348), Dr. Nasrallah asked for feedback on the ChatGPT-generated editorial on myths surrounding psychiatry. I found the “product” equivalent to a diligent high schooler’s homework assignment. ChatGPT lacks the nuance of a historical perspective, one that has observed the ever-changing enthusiasms (from Freud’s “cure” for posttraumatic stress disorder through dopamine, then 5HT, now glutamate and psychedelics) because mental illness is so difficult to treat. For the guest editorial on myths, a little googling would have yielded the same content, if not a similar list of myths. Surely such an editorial would never be accepted in any psychiatry journal; maybe in Reader’s Digest!

Sara Hartley, MD
Berkeley, California

I just read the “guest editorial” generated by ChatGPT. Thank you for this article. Although this is truly an amazing advancement in artificial intelligence (AI), I feel this guest editorial was very basic. It did not read like scientific writing. It read more like it was written at an 11th- or 12th-grade level, though I am fully aware that the question was simple, and thus the answer was not very deep. I can’t deny that if I had been tested, chances are good I would have fallen among the 32% of my peers who would not have recognized it as AI. I appreciate that you (and your team) are working on a protocol regarding how to include content generated by or with the help of AI. God knows if (most likely, when) people with evil minds will use AI to spread false information that may dispute the accredited scientific data and research that guide the medical world and many other fields. I wonder if AI can serve as a search engine that is better or easier to use than PubMed (for example) and the other services we use for research and learning.

Alex Mustachi, PMHNP-BC
Suffern, New York

I wanted to let you know how much I enjoyed reading your recent editorial on AI and scientific writing. Sharing the 4 AI-generated “articles” with readers (“For artificial intelligence, the future is finally here,” Current Psychiatry, April 2023, p. 8-11,29, doi:10.12788/cp.0354) was a delightfully clever/engaging exercise. Other journals need to take a more proactive/targeted stand on this very important issue.

Martha Sajatovic, MD
Cleveland, Ohio

Continue to: The AI-generated samples...

 

 

The Al-generated samples were fascinating. As far as I superficially noted, the spelling, grammar, and punctuation were correct. That is better than one gets from most student compositions. However, the articles were completely lacking in depth or apparent insight. The article on anosognosia mentioned it can be present in up to 50% of cases of schizophrenia. In my experience, it is present in approximately 99.9% of cases. It clearly did not consider if anosognosia is also present in alcoholics, codependents, abusers, or people with bizarre political beliefs. But I guess the “intelligence” wasn’t asked that. The other samples also show shallow thinking and repetitive wording—pretty much like my high school junior compositions.

Maybe an appropriate use for AI is a task such as evaluating suicide notes. AI’s success causes one to feel nonplussed. Much more disconcerting was a recent news article that reported AI made up nonexistent references to a professor’s alleged sexual harassment, and then generated citations to its own made-up reference.1 That is indeed frightening new territory. How does one fight against a machine to clear their own name?

Linda Miller, NP
Harrisonburg, Virginia

References

1. Verma P, Oremus W. ChatGPT invented a sexual harassment scandal and named a real law prof as the accused. The Washington Post. April 5, 2023. Accessed May 8, 2023. https://www.washingtonpost.com/technology/2023/04/05/chatgpt-lies/

Thank you, Dr. Nasrallah, for your latest thought-provoking articles on AI. Time and again you provide the profession with cutting-edge, relevant food for thought. Caveat emptor, indeed.

Lawrence E. Cormier, MD
Denver, Colorado

Continue to: We read with interest...

 

 

We read with interest Dr. Nasrallah’s editorial that invited readers to share their take on the quality of an AI-generated writing sample. I (MZP) was a computational neuroscience major at Columbia University and was accepted to medical school in 2022 at age 19. I identify with the character traits common among many young tech entrepreneurs driving the AI revolution—social awkwardness; discomfort with subjective emotions; restricted areas of interest; algorithmic thinking; strict, naive idealism; and an obsession with data. To gain a deeper understanding of Sam Altman, the CEO of OpenAI (the company that created ChatGPT), we analyzed a 2.5-hour interview that MIT research scientist Lex Fridman conducted with Altman.1 As a result, we began to discern why AI-generated text feels so stiff and bland compared to the superior fluidity and expressiveness of human communication. As of now, the creation is a reflection of its creator.

Generally speaking, computer scientists are not warm and fuzzy types. Hence, ChatGPT strives to be neutral, accurate, and objective compared to more biased and fallible humans, and, consequently, its language lacks the emotive flair we have come to relish in normal human interactions. In the interview, Altman discusses several solutions that will soon raise the quality of ChatGPT’s currently deficient emotional quotient to approximate its superior IQ. Altruistically, Altman has opened ChatGPT to all, so we can freely interact and utilize its potential to increase our productivity exponentially. As a result, ChatGPT interfaces with millions of humans through RLHF (reinforcement learning from human feedback), which makes each iteration more in tune with our sensibilities.2 Another initiative Altman is undertaking is to depart his Silicon Valley bubble for a road trip to interact with “regular people” and gain a better sense of how to make ChatGPT more user-friendly.1

What’s so saddening about Dr. Nasrallah’s homework assignment is that he is asking us to evaluate with our mature adult standards an article that was written at the emotional stage of a child in early high school. But our hubris and complacency are entirely unfounded because ChatGPT is learning much faster than we ever could, and it will quickly surpass us all as it continues to evolve.

It is also quite disconcerting to hear how Altman is naively relying upon governmental regulation and corporate responsibility to manage the potential misuse of future artificial general intelligence for social, economic, and political control and upheaval. We know well the harmful effects of the internet and social media, particularly on our youth, yet our laws still lag far behind the fact that these technological innovations are simultaneously enhancing our knowledge while destroying our souls. As custodians of our world, dedicated to promoting and preserving mental well-being, we cannot wait much longer to intervene in properly parenting AI along its wisest developmental trajectory before it is too late.

Maxwell Zachary Price, BA
Nutley, New Jersey

Richard Louis Price, MD
New York, New York

References

1. Sam Altman: OpenAI CEO on GPT-4, ChatGPT, and the Future of AI. Lex Fridman Podcast #367. March 25, 2023. Accessed April 5, 2023. https://www.youtube.com/watch?v=L_Guz73e6fw

2. Heikkilä M. How OpenAI is trying to make ChatGPT safer and less biased. MIT Technology Review. Published February 21, 2023. Accessed April 5, 2023. https://www.technologyreview.com/2023/02/21/1068893/how-openai-is-trying-to-make-chatgpt-safer-and-less-biased/

Disclosures

The authors report no financial relationships with any companies whose products are mentioned in their letters, or with manufacturers of competing products.

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Membership priorities shape the AGA advocacy agenda

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The AGA Government Affairs Committee and staff recently published in Gastroenterology the results from an AGA membership survey on policy priorities and how members can contribute to AGA advocacy efforts.1 Here, we present key highlights from the survey findings and share opportunities for members to engage in GI advocacy.

AGA advocacy has contributed to significant recent successes that include lowering the average-risk of colorectal cancer screening age from 50 to 45 years, phasing out cost-sharing burdens associated with polypectomy at screening colonoscopy, encouraging federal support to focus on GI cancer disparities, ensuring coverage for telehealth services, expanding colonoscopy coverage after positive noninvasive colorectal cancer screening tests, and mitigating scheduled cuts in Medicare reimbursement for GI services.

Dr. Amit Patel

Despite these important successes, the GI community faces significant challenges that include persisting GI health disparities; declines in reimbursement and increased prior authorization burdens for GI procedures and clinic visits, limited research funding to address the burden of GI disease, climate change, provider burnout, and increasing administrative burdens (such as insurance prior authorizations and step therapy policies.

The AGA sought to better understand policy priorities of the GI community by disseminating a 34-question policy priority survey to AGA members in December 2022. A total of 251 members responded to the survey with career stage and primary practice setting varying among respondents (Figure 1). The AGA vetted and selected 10 health policy issues of highest interest with 95% of survey respondents agreeing these 10 selected topics covered the top priority issues impacting gastroenterology (Figure 2).

From these 10 policy issues, members were asked to identify the top 5 issues that AGA advocacy efforts should address.

The issues most frequently identified included reducing administrative burdens and patient delays in care because of increased prior authorizations (78%), ensuring fair reimbursement for GI providers (68%), reducing insurance-initiated switching of patient treatments for nonmedical reasons (58%), maintaining coverage of video and telephone evaluation and management visits (55%), and reducing delays in clinical care resulting from step therapy protocols (53%).

Other important issues included ensuring patients with pre-existing conditions have access to essential benefits and quality specialty care (43%); protecting providers from medical licensing restrictions and liability to deliver care across state lines (35%); addressing Medicare Quality Payment Program reporting requirements and lack of specialty advanced payment models (27%); increasing funding for GI health disparities (24%); and, increasing federal research funding to ensure greater opportunities for diverse early career investigators (20%).
 

Most problematic burdens

Survey respondents identified insurer prior authorization and step therapy burdens as especially problematic. 93% of respondents described the impact of prior authorization on their practices as “significantly burdensome” (61%) or “somewhat burdensome” (32%).

About 95% noted that prior authorization restrictions have impacted patient access to clinically appropriate treatments and patient clinical outcomes “significantly” (56%) or “somewhat” (39%) negatively. 84% described the burdens associated with prior authorization policies as having increased “significantly” (60%) or “somewhat” (24%) over the last 5 years.

Dr. Rontonya Carr


Likewise, step therapy protocols were perceived by 84% of respondents as burdensome; by 88% as negatively impactful on patient access to clinically appropriate treatments; and, by 88% as negatively impactful on patient clinical outcomes.

About 84% of respondents noted increases in the frequency of nonmedical switching and dosing restrictions over the last 5 years, with 90% perceiving negative impacts on patient clinical outcomes. 73% of respondents reported increased burdens associated with compliance in the Medicare QPP over the last 5 years.
 

 

AGA’s advocacy work

About 76% of respondents were interested in learning more about the AGA’s advocacy work. We presented some of the various opportunities and resources for members to engage with and contribute to AGA advocacy efforts (see pie chart). Based on the tremendous efforts and dedication of AGA staff, some of these opportunities include educational modules on AGA University, DDW programming, the AGA Washington Insider monthly policy newsletter, preformatted communications available through the AGA Advocacy Action Center, participation in AGA Advocacy Days or the AGA Congressional Advocates Program, service on the AGA Government Affairs Committee, and/or contributing to the AGA Political Action Committee.

Overall, the survey respondents illustrate the diversity and enthusiasm of AGA membership. Importantly, 95% of AGA members responding to the survey agreed these 10 selected policy issues are inclusive of the current top priority issues of the GI community. Amidst an ever-shifting health care landscape, we – the AGA community – must remain vigilant and adaptable to best address expected and unexpected changes and challenges to our patients and colleagues. In this respect, we should encourage constructive communication and dialogue between AGA membership, leadership, other issue stakeholders, government representatives and entities, and payers.

Amit Patel, MD, is a gastroenterologist and associate professor of medicine at Duke University and the Durham Veterans Affairs Medical Center, both in Durham, N.C. He serves on the editorial review board of Gastroenterology. Rotonya McCants Carr, MD, is the Cyrus E. Rubin Chair and division head of gastroenterology at the University of Washington, Seattle. Both Dr. Patel and Dr. Carr serve on the AGA Government Affairs Committee. The contents of this article do not represent the views of the Department of Veterans Affairs.

Reference

Patel A et al. Gastroenterology. 2023 May;164[6]:847-50.

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The AGA Government Affairs Committee and staff recently published in Gastroenterology the results from an AGA membership survey on policy priorities and how members can contribute to AGA advocacy efforts.1 Here, we present key highlights from the survey findings and share opportunities for members to engage in GI advocacy.

AGA advocacy has contributed to significant recent successes that include lowering the average-risk of colorectal cancer screening age from 50 to 45 years, phasing out cost-sharing burdens associated with polypectomy at screening colonoscopy, encouraging federal support to focus on GI cancer disparities, ensuring coverage for telehealth services, expanding colonoscopy coverage after positive noninvasive colorectal cancer screening tests, and mitigating scheduled cuts in Medicare reimbursement for GI services.

Dr. Amit Patel

Despite these important successes, the GI community faces significant challenges that include persisting GI health disparities; declines in reimbursement and increased prior authorization burdens for GI procedures and clinic visits, limited research funding to address the burden of GI disease, climate change, provider burnout, and increasing administrative burdens (such as insurance prior authorizations and step therapy policies.

The AGA sought to better understand policy priorities of the GI community by disseminating a 34-question policy priority survey to AGA members in December 2022. A total of 251 members responded to the survey with career stage and primary practice setting varying among respondents (Figure 1). The AGA vetted and selected 10 health policy issues of highest interest with 95% of survey respondents agreeing these 10 selected topics covered the top priority issues impacting gastroenterology (Figure 2).

From these 10 policy issues, members were asked to identify the top 5 issues that AGA advocacy efforts should address.

The issues most frequently identified included reducing administrative burdens and patient delays in care because of increased prior authorizations (78%), ensuring fair reimbursement for GI providers (68%), reducing insurance-initiated switching of patient treatments for nonmedical reasons (58%), maintaining coverage of video and telephone evaluation and management visits (55%), and reducing delays in clinical care resulting from step therapy protocols (53%).

Other important issues included ensuring patients with pre-existing conditions have access to essential benefits and quality specialty care (43%); protecting providers from medical licensing restrictions and liability to deliver care across state lines (35%); addressing Medicare Quality Payment Program reporting requirements and lack of specialty advanced payment models (27%); increasing funding for GI health disparities (24%); and, increasing federal research funding to ensure greater opportunities for diverse early career investigators (20%).
 

Most problematic burdens

Survey respondents identified insurer prior authorization and step therapy burdens as especially problematic. 93% of respondents described the impact of prior authorization on their practices as “significantly burdensome” (61%) or “somewhat burdensome” (32%).

About 95% noted that prior authorization restrictions have impacted patient access to clinically appropriate treatments and patient clinical outcomes “significantly” (56%) or “somewhat” (39%) negatively. 84% described the burdens associated with prior authorization policies as having increased “significantly” (60%) or “somewhat” (24%) over the last 5 years.

Dr. Rontonya Carr


Likewise, step therapy protocols were perceived by 84% of respondents as burdensome; by 88% as negatively impactful on patient access to clinically appropriate treatments; and, by 88% as negatively impactful on patient clinical outcomes.

About 84% of respondents noted increases in the frequency of nonmedical switching and dosing restrictions over the last 5 years, with 90% perceiving negative impacts on patient clinical outcomes. 73% of respondents reported increased burdens associated with compliance in the Medicare QPP over the last 5 years.
 

 

AGA’s advocacy work

About 76% of respondents were interested in learning more about the AGA’s advocacy work. We presented some of the various opportunities and resources for members to engage with and contribute to AGA advocacy efforts (see pie chart). Based on the tremendous efforts and dedication of AGA staff, some of these opportunities include educational modules on AGA University, DDW programming, the AGA Washington Insider monthly policy newsletter, preformatted communications available through the AGA Advocacy Action Center, participation in AGA Advocacy Days or the AGA Congressional Advocates Program, service on the AGA Government Affairs Committee, and/or contributing to the AGA Political Action Committee.

Overall, the survey respondents illustrate the diversity and enthusiasm of AGA membership. Importantly, 95% of AGA members responding to the survey agreed these 10 selected policy issues are inclusive of the current top priority issues of the GI community. Amidst an ever-shifting health care landscape, we – the AGA community – must remain vigilant and adaptable to best address expected and unexpected changes and challenges to our patients and colleagues. In this respect, we should encourage constructive communication and dialogue between AGA membership, leadership, other issue stakeholders, government representatives and entities, and payers.

Amit Patel, MD, is a gastroenterologist and associate professor of medicine at Duke University and the Durham Veterans Affairs Medical Center, both in Durham, N.C. He serves on the editorial review board of Gastroenterology. Rotonya McCants Carr, MD, is the Cyrus E. Rubin Chair and division head of gastroenterology at the University of Washington, Seattle. Both Dr. Patel and Dr. Carr serve on the AGA Government Affairs Committee. The contents of this article do not represent the views of the Department of Veterans Affairs.

Reference

Patel A et al. Gastroenterology. 2023 May;164[6]:847-50.

The AGA Government Affairs Committee and staff recently published in Gastroenterology the results from an AGA membership survey on policy priorities and how members can contribute to AGA advocacy efforts.1 Here, we present key highlights from the survey findings and share opportunities for members to engage in GI advocacy.

AGA advocacy has contributed to significant recent successes that include lowering the average-risk of colorectal cancer screening age from 50 to 45 years, phasing out cost-sharing burdens associated with polypectomy at screening colonoscopy, encouraging federal support to focus on GI cancer disparities, ensuring coverage for telehealth services, expanding colonoscopy coverage after positive noninvasive colorectal cancer screening tests, and mitigating scheduled cuts in Medicare reimbursement for GI services.

Dr. Amit Patel

Despite these important successes, the GI community faces significant challenges that include persisting GI health disparities; declines in reimbursement and increased prior authorization burdens for GI procedures and clinic visits, limited research funding to address the burden of GI disease, climate change, provider burnout, and increasing administrative burdens (such as insurance prior authorizations and step therapy policies.

The AGA sought to better understand policy priorities of the GI community by disseminating a 34-question policy priority survey to AGA members in December 2022. A total of 251 members responded to the survey with career stage and primary practice setting varying among respondents (Figure 1). The AGA vetted and selected 10 health policy issues of highest interest with 95% of survey respondents agreeing these 10 selected topics covered the top priority issues impacting gastroenterology (Figure 2).

From these 10 policy issues, members were asked to identify the top 5 issues that AGA advocacy efforts should address.

The issues most frequently identified included reducing administrative burdens and patient delays in care because of increased prior authorizations (78%), ensuring fair reimbursement for GI providers (68%), reducing insurance-initiated switching of patient treatments for nonmedical reasons (58%), maintaining coverage of video and telephone evaluation and management visits (55%), and reducing delays in clinical care resulting from step therapy protocols (53%).

Other important issues included ensuring patients with pre-existing conditions have access to essential benefits and quality specialty care (43%); protecting providers from medical licensing restrictions and liability to deliver care across state lines (35%); addressing Medicare Quality Payment Program reporting requirements and lack of specialty advanced payment models (27%); increasing funding for GI health disparities (24%); and, increasing federal research funding to ensure greater opportunities for diverse early career investigators (20%).
 

Most problematic burdens

Survey respondents identified insurer prior authorization and step therapy burdens as especially problematic. 93% of respondents described the impact of prior authorization on their practices as “significantly burdensome” (61%) or “somewhat burdensome” (32%).

About 95% noted that prior authorization restrictions have impacted patient access to clinically appropriate treatments and patient clinical outcomes “significantly” (56%) or “somewhat” (39%) negatively. 84% described the burdens associated with prior authorization policies as having increased “significantly” (60%) or “somewhat” (24%) over the last 5 years.

Dr. Rontonya Carr


Likewise, step therapy protocols were perceived by 84% of respondents as burdensome; by 88% as negatively impactful on patient access to clinically appropriate treatments; and, by 88% as negatively impactful on patient clinical outcomes.

About 84% of respondents noted increases in the frequency of nonmedical switching and dosing restrictions over the last 5 years, with 90% perceiving negative impacts on patient clinical outcomes. 73% of respondents reported increased burdens associated with compliance in the Medicare QPP over the last 5 years.
 

 

AGA’s advocacy work

About 76% of respondents were interested in learning more about the AGA’s advocacy work. We presented some of the various opportunities and resources for members to engage with and contribute to AGA advocacy efforts (see pie chart). Based on the tremendous efforts and dedication of AGA staff, some of these opportunities include educational modules on AGA University, DDW programming, the AGA Washington Insider monthly policy newsletter, preformatted communications available through the AGA Advocacy Action Center, participation in AGA Advocacy Days or the AGA Congressional Advocates Program, service on the AGA Government Affairs Committee, and/or contributing to the AGA Political Action Committee.

Overall, the survey respondents illustrate the diversity and enthusiasm of AGA membership. Importantly, 95% of AGA members responding to the survey agreed these 10 selected policy issues are inclusive of the current top priority issues of the GI community. Amidst an ever-shifting health care landscape, we – the AGA community – must remain vigilant and adaptable to best address expected and unexpected changes and challenges to our patients and colleagues. In this respect, we should encourage constructive communication and dialogue between AGA membership, leadership, other issue stakeholders, government representatives and entities, and payers.

Amit Patel, MD, is a gastroenterologist and associate professor of medicine at Duke University and the Durham Veterans Affairs Medical Center, both in Durham, N.C. He serves on the editorial review board of Gastroenterology. Rotonya McCants Carr, MD, is the Cyrus E. Rubin Chair and division head of gastroenterology at the University of Washington, Seattle. Both Dr. Patel and Dr. Carr serve on the AGA Government Affairs Committee. The contents of this article do not represent the views of the Department of Veterans Affairs.

Reference

Patel A et al. Gastroenterology. 2023 May;164[6]:847-50.

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The power of mentorship

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In a 2018 JAMA Viewpoint, Dr. Vineet Chopra, a former colleague of mine at the University of Michigan (now chair of medicine at the University of Colorado) and colleagues wrote about four archetypes of mentorship: mentor, coach, sponsor, and connector. While we are all products of our hard work, passion, and perseverance, none of us would be where we are today without a larger community of individuals who helped us in ways large and small along the way.

Dr. Megan A. Adams

For me, DDW serves as an annual reminder of the power of mentorship in building and sustaining careers. Each May, trainees and early career faculty present their projects in oral or poster sessions, cheered on by their research mentors. Senior thought leaders offer career advice and guidance to more junior colleagues through structured sessions or informal conversations and facilitate introductions to new collaborators. Department chairs, division chiefs, and senior practice leaders take time to reconnect with their early mentors who believed in their potential and provided them with opportunities to take their careers to new heights. And, we see the incredible payoff of programs like AGA’s FORWARD and Future Leaders Programs in serving as springboards for career advancement and creating powerful role models and mentors for the future.

This year’s AGA presidential leadership transition served as a particularly poignant example of the power of mentorship as incoming AGA President Dr. Barbara Jung succeeded one of her early mentors, outgoing AGA President Dr. John Carethers, in this prestigious role. I hope you’ll join me in reflecting on the tremendous impact that mentors, coaches, sponsors, and connectors have had on your career, and continue to pay it forward to the next generation.

In this month’s issue, we feature several stories from DDW 2023, including summaries of the AGA presidential address and a study evaluating the impact of state Medicaid expansion on uptake of CRC screening in safety-net practices. From AGA’s flagship journals, we highlight a propensity-matched cohort study assessing the impact of pancreatic cancer surveillance of high-risk patients on important clinical outcomes and a new AGA CPU on management of extraesophageal GERD. In this month’s AGA Policy and Advocacy column, Dr. Amit Patel and Dr. Rotonya Carr review the results of a recent membership survey on policy priorities and outline the many ways you can get involved in advocacy efforts. Finally, our Member Spotlight column celebrates gastroenterologist and humanitarian Kadirawel Iswara, MD, recipient of this year’s AGA Distinguished Clinician Award in Private Practice, who is a cherished mentor to many prominent members of our field.
 

Megan A. Adams, M.D., J.D., MSc

Editor-in-Chief

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In a 2018 JAMA Viewpoint, Dr. Vineet Chopra, a former colleague of mine at the University of Michigan (now chair of medicine at the University of Colorado) and colleagues wrote about four archetypes of mentorship: mentor, coach, sponsor, and connector. While we are all products of our hard work, passion, and perseverance, none of us would be where we are today without a larger community of individuals who helped us in ways large and small along the way.

Dr. Megan A. Adams

For me, DDW serves as an annual reminder of the power of mentorship in building and sustaining careers. Each May, trainees and early career faculty present their projects in oral or poster sessions, cheered on by their research mentors. Senior thought leaders offer career advice and guidance to more junior colleagues through structured sessions or informal conversations and facilitate introductions to new collaborators. Department chairs, division chiefs, and senior practice leaders take time to reconnect with their early mentors who believed in their potential and provided them with opportunities to take their careers to new heights. And, we see the incredible payoff of programs like AGA’s FORWARD and Future Leaders Programs in serving as springboards for career advancement and creating powerful role models and mentors for the future.

This year’s AGA presidential leadership transition served as a particularly poignant example of the power of mentorship as incoming AGA President Dr. Barbara Jung succeeded one of her early mentors, outgoing AGA President Dr. John Carethers, in this prestigious role. I hope you’ll join me in reflecting on the tremendous impact that mentors, coaches, sponsors, and connectors have had on your career, and continue to pay it forward to the next generation.

In this month’s issue, we feature several stories from DDW 2023, including summaries of the AGA presidential address and a study evaluating the impact of state Medicaid expansion on uptake of CRC screening in safety-net practices. From AGA’s flagship journals, we highlight a propensity-matched cohort study assessing the impact of pancreatic cancer surveillance of high-risk patients on important clinical outcomes and a new AGA CPU on management of extraesophageal GERD. In this month’s AGA Policy and Advocacy column, Dr. Amit Patel and Dr. Rotonya Carr review the results of a recent membership survey on policy priorities and outline the many ways you can get involved in advocacy efforts. Finally, our Member Spotlight column celebrates gastroenterologist and humanitarian Kadirawel Iswara, MD, recipient of this year’s AGA Distinguished Clinician Award in Private Practice, who is a cherished mentor to many prominent members of our field.
 

Megan A. Adams, M.D., J.D., MSc

Editor-in-Chief

In a 2018 JAMA Viewpoint, Dr. Vineet Chopra, a former colleague of mine at the University of Michigan (now chair of medicine at the University of Colorado) and colleagues wrote about four archetypes of mentorship: mentor, coach, sponsor, and connector. While we are all products of our hard work, passion, and perseverance, none of us would be where we are today without a larger community of individuals who helped us in ways large and small along the way.

Dr. Megan A. Adams

For me, DDW serves as an annual reminder of the power of mentorship in building and sustaining careers. Each May, trainees and early career faculty present their projects in oral or poster sessions, cheered on by their research mentors. Senior thought leaders offer career advice and guidance to more junior colleagues through structured sessions or informal conversations and facilitate introductions to new collaborators. Department chairs, division chiefs, and senior practice leaders take time to reconnect with their early mentors who believed in their potential and provided them with opportunities to take their careers to new heights. And, we see the incredible payoff of programs like AGA’s FORWARD and Future Leaders Programs in serving as springboards for career advancement and creating powerful role models and mentors for the future.

This year’s AGA presidential leadership transition served as a particularly poignant example of the power of mentorship as incoming AGA President Dr. Barbara Jung succeeded one of her early mentors, outgoing AGA President Dr. John Carethers, in this prestigious role. I hope you’ll join me in reflecting on the tremendous impact that mentors, coaches, sponsors, and connectors have had on your career, and continue to pay it forward to the next generation.

In this month’s issue, we feature several stories from DDW 2023, including summaries of the AGA presidential address and a study evaluating the impact of state Medicaid expansion on uptake of CRC screening in safety-net practices. From AGA’s flagship journals, we highlight a propensity-matched cohort study assessing the impact of pancreatic cancer surveillance of high-risk patients on important clinical outcomes and a new AGA CPU on management of extraesophageal GERD. In this month’s AGA Policy and Advocacy column, Dr. Amit Patel and Dr. Rotonya Carr review the results of a recent membership survey on policy priorities and outline the many ways you can get involved in advocacy efforts. Finally, our Member Spotlight column celebrates gastroenterologist and humanitarian Kadirawel Iswara, MD, recipient of this year’s AGA Distinguished Clinician Award in Private Practice, who is a cherished mentor to many prominent members of our field.
 

Megan A. Adams, M.D., J.D., MSc

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COVID boosters effective, but not for long

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This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

I am here today to talk about the effectiveness of COVID vaccine boosters in the midst of 2023. The reason I want to talk about this isn’t necessarily to dig into exactly how effective vaccines are. This is an area that’s been trod upon multiple times. But it does give me an opportunity to talk about a neat study design called the “test-negative case-control” design, which has some unique properties when you’re trying to evaluate the effect of something outside of the context of a randomized trial.

So, just a little bit of background to remind everyone where we are. These are the number of doses of COVID vaccines administered over time throughout the pandemic.

Centers for Disease Control and Prevention


You can see that it’s stratified by age. The orange lines are adults ages 18-49, for example. You can see a big wave of vaccination when the vaccine first came out at the start of 2021. Then subsequently, you can see smaller waves after the first and second booster authorizations, and maybe a bit of a pickup, particularly among older adults, when the bivalent boosters were authorized. But still very little overall pickup of the bivalent booster, compared with the monovalent vaccines, which might suggest vaccine fatigue going on this far into the pandemic. But it’s important to try to understand exactly how effective those new boosters are, at least at this point in time.

I’m talking about Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness in Preventing Symptomatic SARS-CoV-2 Infection Attributable to Omicron BA.5– and XBB/XBB.1.5–Related Sublineages Among Immunocompetent Adults – Increasing Community Access to Testing Program, United States, December 2022–January 2023, which came out in the Morbidity and Mortality Weekly Report very recently, which uses this test-negative case-control design to evaluate the ability of bivalent mRNA vaccines to prevent hospitalization.

The question is: Does receipt of a bivalent COVID vaccine booster prevent hospitalizations, ICU stay, or death? That may not be the question that is of interest to everyone. I know people are interested in symptoms, missed work, and transmission, but this paper was looking at hospitalization, ICU stay, and death.

What’s kind of tricky here is that the data they’re using are in people who are hospitalized with various diseases. It’s a little bit counterintuitive to ask yourself: “How can you estimate the vaccine’s ability to prevent hospitalization using only data from hospitalized patients?” You might look at that on the surface and say: “Well, you can’t – that’s impossible.” But you can, actually, with this cool test-negative case-control design.

Here’s basically how it works. You take a population of people who are hospitalized and confirmed to have COVID. Some of them will be vaccinated and some of them will be unvaccinated. And the proportion of vaccinated and unvaccinated people doesn’t tell you very much because it depends on how that compares with the rates in the general population, for instance. Let me clarify this. If 100% of the population were vaccinated, then 100% of the people hospitalized with COVID would be vaccinated. That doesn’t mean vaccines are bad. Put another way, if 90% of the population were vaccinated and 60% of people hospitalized with COVID were vaccinated, that would actually show that the vaccines were working to some extent, all else being equal. So it’s not just the raw percentages that tell you anything. Some people are vaccinated, some people aren’t. You need to understand what the baseline rate is.

The test-negative case-control design looks at people who are hospitalized without COVID. Now who those people are (who the controls are, in this case) is something you really need to think about. In the case of this CDC study, they used people who were hospitalized with COVID-like illnesses – flu-like illnesses, respiratory illnesses, pneumonia, influenza, etc. This is a pretty good idea because it standardizes a little bit for people who have access to healthcare. They can get to a hospital and they’re the type of person who would go to a hospital when they’re feeling sick. That’s a better control than the general population overall, which is something I like about this design.

Some of those people who don’t have COVID (they’re in the hospital for flu or whatever) will have been vaccinated for COVID, and some will not have been vaccinated for COVID. And of course, we don’t expect COVID vaccines necessarily to protect against the flu or pneumonia, but that gives us a way to standardize.

Dr. F. Perry Wilson


If you look at these Venn diagrams, I’ve got vaccinated/unvaccinated being exactly the same proportion, which would suggest that you’re just as likely to be hospitalized with COVID if you’re vaccinated as you are to be hospitalized with some other respiratory illness, which suggests that the vaccine isn’t particularly effective.

Dr. F. Perry Wilson


However, if you saw something like this, looking at all those patients with flu and other non-COVID illnesses, a lot more of them had been vaccinated for COVID. What that tells you is that we’re seeing fewer vaccinated people hospitalized with COVID than we would expect because we have this standardization from other respiratory infections. We expect this many vaccinated people because that’s how many vaccinated people there are who show up with flu. But in the COVID population, there are fewer, and that would suggest that the vaccines are effective. So that is the test-negative case-control design. You can do the same thing with ICU stays and death.

There are some assumptions here which you might already be thinking about. The most important one is that vaccination status is not associated with the risk for the disease. I always think of older people in this context. During the pandemic, at least in the United States, older people were much more likely to be vaccinated but were also much more likely to contract COVID and be hospitalized with COVID. The test-negative design actually accounts for this in some sense, because older people are also more likely to be hospitalized for things like flu and pneumonia. So there’s some control there.

But to the extent that older people are uniquely susceptible to COVID compared with other respiratory illnesses, that would bias your results to make the vaccines look worse. So the standard approach here is to adjust for these things. I think the CDC adjusted for age, sex, race, ethnicity, and a few other things to settle down and see how effective the vaccines were.

Let’s get to a worked example.

Dr. F. Perry Wilson


This is the actual data from the CDC paper. They had 6,907 individuals who were hospitalized with COVID, and 26% of them were unvaccinated. What’s the baseline rate that we would expect to be unvaccinated? A total of 59,234 individuals were hospitalized with a non-COVID respiratory illness, and 23% of them were unvaccinated. So you can see that there were more unvaccinated people than you would think in the COVID group. In other words, fewer vaccinated people, which suggests that the vaccine works to some degree because it’s keeping some people out of the hospital.

Now, 26% versus 23% is not a very impressive difference. But it gets more interesting when you break it down by the type of vaccine and how long ago the individual was vaccinated.

Dr. F. Perry Wilson


Let’s walk through the “all” group on this figure. What you can see is the calculated vaccine effectiveness. If you look at just the monovalent vaccine here, we see a 20% vaccine effectiveness. This means that you’re preventing 20% of hospitalizations basically due to COVID by people getting vaccinated. That’s okay but it’s certainly not anything to write home about. But we see much better vaccine effectiveness with the bivalent vaccine if it had been received within 60 days.

This compares people who received the bivalent vaccine within 60 days in the COVID group and the non-COVID group. The concern that the vaccine was given very recently affects both groups equally so it shouldn’t result in bias there. You see a step-off in vaccine effectiveness from 60 days, 60-120 days, and greater than 120 days. This is 4 months, and you’ve gone from 60% to 20%. When you break that down by age, you can see a similar pattern in the 18-to-65 group and potentially some more protection the greater than 65 age group.

Why is vaccine efficacy going down? The study doesn’t tell us, but we can hypothesize that this might be an immunologic effect – the antibodies or the protective T cells are waning over time. This could also reflect changes in the virus in the environment as the virus seeks to evade certain immune responses. But overall, this suggests that waiting a year between booster doses may leave you exposed for quite some time, although the take-home here is that bivalent vaccines in general are probably a good idea for the proportion of people who haven’t gotten them.

When we look at critical illness and death, the numbers look a little bit better.

Dr. F. Perry Wilson


You can see that bivalent is better than monovalent – certainly pretty good if you’ve received it within 60 days. It does tend to wane a little bit, but not nearly as much. You’ve still got about 50% vaccine efficacy beyond 120 days when we’re looking at critical illness, which is stays in the ICU and death.

The overriding thing to think about when we think about vaccine policy is that the way you get immunized against COVID is either by vaccine or by getting infected with COVID, or both.

Centers for Disease Control and Prevention


This really interesting graph from the CDC (although it’s updated only through quarter three of 2022) shows the proportion of Americans, based on routine lab tests, who have varying degrees of protection against COVID. What you can see is that, by quarter three of 2022, just 3.6% of people who had blood drawn at a commercial laboratory had no evidence of infection or vaccination. In other words, almost no one was totally naive. Then 26% of people had never been infected – they only have vaccine antibodies – plus 22% of people had only been infected but had never been vaccinated. And then 50% of people had both. So there’s a tremendous amount of existing immunity out there.

The really interesting question about future vaccination and future booster doses is, how does it work on the background of this pattern? The CDC study doesn’t tell us, and I don’t think they have the data to tell us the vaccine efficacy in these different groups. Is it more effective in people who have only had an infection, for example? Is it more effective in people who have only had vaccination versus people who had both, or people who have no protection whatsoever? Those are the really interesting questions that need to be answered going forward as vaccine policy gets developed in the future.

I hope this was a helpful primer on how the test-negative case-control design can answer questions that seem a little bit unanswerable.

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale’s Clinical and Translational Research Accelerator. He disclosed no relevant conflicts of interest.
 

A version of this article first appeared on Medscape.com.

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This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

I am here today to talk about the effectiveness of COVID vaccine boosters in the midst of 2023. The reason I want to talk about this isn’t necessarily to dig into exactly how effective vaccines are. This is an area that’s been trod upon multiple times. But it does give me an opportunity to talk about a neat study design called the “test-negative case-control” design, which has some unique properties when you’re trying to evaluate the effect of something outside of the context of a randomized trial.

So, just a little bit of background to remind everyone where we are. These are the number of doses of COVID vaccines administered over time throughout the pandemic.

Centers for Disease Control and Prevention


You can see that it’s stratified by age. The orange lines are adults ages 18-49, for example. You can see a big wave of vaccination when the vaccine first came out at the start of 2021. Then subsequently, you can see smaller waves after the first and second booster authorizations, and maybe a bit of a pickup, particularly among older adults, when the bivalent boosters were authorized. But still very little overall pickup of the bivalent booster, compared with the monovalent vaccines, which might suggest vaccine fatigue going on this far into the pandemic. But it’s important to try to understand exactly how effective those new boosters are, at least at this point in time.

I’m talking about Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness in Preventing Symptomatic SARS-CoV-2 Infection Attributable to Omicron BA.5– and XBB/XBB.1.5–Related Sublineages Among Immunocompetent Adults – Increasing Community Access to Testing Program, United States, December 2022–January 2023, which came out in the Morbidity and Mortality Weekly Report very recently, which uses this test-negative case-control design to evaluate the ability of bivalent mRNA vaccines to prevent hospitalization.

The question is: Does receipt of a bivalent COVID vaccine booster prevent hospitalizations, ICU stay, or death? That may not be the question that is of interest to everyone. I know people are interested in symptoms, missed work, and transmission, but this paper was looking at hospitalization, ICU stay, and death.

What’s kind of tricky here is that the data they’re using are in people who are hospitalized with various diseases. It’s a little bit counterintuitive to ask yourself: “How can you estimate the vaccine’s ability to prevent hospitalization using only data from hospitalized patients?” You might look at that on the surface and say: “Well, you can’t – that’s impossible.” But you can, actually, with this cool test-negative case-control design.

Here’s basically how it works. You take a population of people who are hospitalized and confirmed to have COVID. Some of them will be vaccinated and some of them will be unvaccinated. And the proportion of vaccinated and unvaccinated people doesn’t tell you very much because it depends on how that compares with the rates in the general population, for instance. Let me clarify this. If 100% of the population were vaccinated, then 100% of the people hospitalized with COVID would be vaccinated. That doesn’t mean vaccines are bad. Put another way, if 90% of the population were vaccinated and 60% of people hospitalized with COVID were vaccinated, that would actually show that the vaccines were working to some extent, all else being equal. So it’s not just the raw percentages that tell you anything. Some people are vaccinated, some people aren’t. You need to understand what the baseline rate is.

The test-negative case-control design looks at people who are hospitalized without COVID. Now who those people are (who the controls are, in this case) is something you really need to think about. In the case of this CDC study, they used people who were hospitalized with COVID-like illnesses – flu-like illnesses, respiratory illnesses, pneumonia, influenza, etc. This is a pretty good idea because it standardizes a little bit for people who have access to healthcare. They can get to a hospital and they’re the type of person who would go to a hospital when they’re feeling sick. That’s a better control than the general population overall, which is something I like about this design.

Some of those people who don’t have COVID (they’re in the hospital for flu or whatever) will have been vaccinated for COVID, and some will not have been vaccinated for COVID. And of course, we don’t expect COVID vaccines necessarily to protect against the flu or pneumonia, but that gives us a way to standardize.

Dr. F. Perry Wilson


If you look at these Venn diagrams, I’ve got vaccinated/unvaccinated being exactly the same proportion, which would suggest that you’re just as likely to be hospitalized with COVID if you’re vaccinated as you are to be hospitalized with some other respiratory illness, which suggests that the vaccine isn’t particularly effective.

Dr. F. Perry Wilson


However, if you saw something like this, looking at all those patients with flu and other non-COVID illnesses, a lot more of them had been vaccinated for COVID. What that tells you is that we’re seeing fewer vaccinated people hospitalized with COVID than we would expect because we have this standardization from other respiratory infections. We expect this many vaccinated people because that’s how many vaccinated people there are who show up with flu. But in the COVID population, there are fewer, and that would suggest that the vaccines are effective. So that is the test-negative case-control design. You can do the same thing with ICU stays and death.

There are some assumptions here which you might already be thinking about. The most important one is that vaccination status is not associated with the risk for the disease. I always think of older people in this context. During the pandemic, at least in the United States, older people were much more likely to be vaccinated but were also much more likely to contract COVID and be hospitalized with COVID. The test-negative design actually accounts for this in some sense, because older people are also more likely to be hospitalized for things like flu and pneumonia. So there’s some control there.

But to the extent that older people are uniquely susceptible to COVID compared with other respiratory illnesses, that would bias your results to make the vaccines look worse. So the standard approach here is to adjust for these things. I think the CDC adjusted for age, sex, race, ethnicity, and a few other things to settle down and see how effective the vaccines were.

Let’s get to a worked example.

Dr. F. Perry Wilson


This is the actual data from the CDC paper. They had 6,907 individuals who were hospitalized with COVID, and 26% of them were unvaccinated. What’s the baseline rate that we would expect to be unvaccinated? A total of 59,234 individuals were hospitalized with a non-COVID respiratory illness, and 23% of them were unvaccinated. So you can see that there were more unvaccinated people than you would think in the COVID group. In other words, fewer vaccinated people, which suggests that the vaccine works to some degree because it’s keeping some people out of the hospital.

Now, 26% versus 23% is not a very impressive difference. But it gets more interesting when you break it down by the type of vaccine and how long ago the individual was vaccinated.

Dr. F. Perry Wilson


Let’s walk through the “all” group on this figure. What you can see is the calculated vaccine effectiveness. If you look at just the monovalent vaccine here, we see a 20% vaccine effectiveness. This means that you’re preventing 20% of hospitalizations basically due to COVID by people getting vaccinated. That’s okay but it’s certainly not anything to write home about. But we see much better vaccine effectiveness with the bivalent vaccine if it had been received within 60 days.

This compares people who received the bivalent vaccine within 60 days in the COVID group and the non-COVID group. The concern that the vaccine was given very recently affects both groups equally so it shouldn’t result in bias there. You see a step-off in vaccine effectiveness from 60 days, 60-120 days, and greater than 120 days. This is 4 months, and you’ve gone from 60% to 20%. When you break that down by age, you can see a similar pattern in the 18-to-65 group and potentially some more protection the greater than 65 age group.

Why is vaccine efficacy going down? The study doesn’t tell us, but we can hypothesize that this might be an immunologic effect – the antibodies or the protective T cells are waning over time. This could also reflect changes in the virus in the environment as the virus seeks to evade certain immune responses. But overall, this suggests that waiting a year between booster doses may leave you exposed for quite some time, although the take-home here is that bivalent vaccines in general are probably a good idea for the proportion of people who haven’t gotten them.

When we look at critical illness and death, the numbers look a little bit better.

Dr. F. Perry Wilson


You can see that bivalent is better than monovalent – certainly pretty good if you’ve received it within 60 days. It does tend to wane a little bit, but not nearly as much. You’ve still got about 50% vaccine efficacy beyond 120 days when we’re looking at critical illness, which is stays in the ICU and death.

The overriding thing to think about when we think about vaccine policy is that the way you get immunized against COVID is either by vaccine or by getting infected with COVID, or both.

Centers for Disease Control and Prevention


This really interesting graph from the CDC (although it’s updated only through quarter three of 2022) shows the proportion of Americans, based on routine lab tests, who have varying degrees of protection against COVID. What you can see is that, by quarter three of 2022, just 3.6% of people who had blood drawn at a commercial laboratory had no evidence of infection or vaccination. In other words, almost no one was totally naive. Then 26% of people had never been infected – they only have vaccine antibodies – plus 22% of people had only been infected but had never been vaccinated. And then 50% of people had both. So there’s a tremendous amount of existing immunity out there.

The really interesting question about future vaccination and future booster doses is, how does it work on the background of this pattern? The CDC study doesn’t tell us, and I don’t think they have the data to tell us the vaccine efficacy in these different groups. Is it more effective in people who have only had an infection, for example? Is it more effective in people who have only had vaccination versus people who had both, or people who have no protection whatsoever? Those are the really interesting questions that need to be answered going forward as vaccine policy gets developed in the future.

I hope this was a helpful primer on how the test-negative case-control design can answer questions that seem a little bit unanswerable.

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale’s Clinical and Translational Research Accelerator. He disclosed no relevant conflicts of interest.
 

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

I am here today to talk about the effectiveness of COVID vaccine boosters in the midst of 2023. The reason I want to talk about this isn’t necessarily to dig into exactly how effective vaccines are. This is an area that’s been trod upon multiple times. But it does give me an opportunity to talk about a neat study design called the “test-negative case-control” design, which has some unique properties when you’re trying to evaluate the effect of something outside of the context of a randomized trial.

So, just a little bit of background to remind everyone where we are. These are the number of doses of COVID vaccines administered over time throughout the pandemic.

Centers for Disease Control and Prevention


You can see that it’s stratified by age. The orange lines are adults ages 18-49, for example. You can see a big wave of vaccination when the vaccine first came out at the start of 2021. Then subsequently, you can see smaller waves after the first and second booster authorizations, and maybe a bit of a pickup, particularly among older adults, when the bivalent boosters were authorized. But still very little overall pickup of the bivalent booster, compared with the monovalent vaccines, which might suggest vaccine fatigue going on this far into the pandemic. But it’s important to try to understand exactly how effective those new boosters are, at least at this point in time.

I’m talking about Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness in Preventing Symptomatic SARS-CoV-2 Infection Attributable to Omicron BA.5– and XBB/XBB.1.5–Related Sublineages Among Immunocompetent Adults – Increasing Community Access to Testing Program, United States, December 2022–January 2023, which came out in the Morbidity and Mortality Weekly Report very recently, which uses this test-negative case-control design to evaluate the ability of bivalent mRNA vaccines to prevent hospitalization.

The question is: Does receipt of a bivalent COVID vaccine booster prevent hospitalizations, ICU stay, or death? That may not be the question that is of interest to everyone. I know people are interested in symptoms, missed work, and transmission, but this paper was looking at hospitalization, ICU stay, and death.

What’s kind of tricky here is that the data they’re using are in people who are hospitalized with various diseases. It’s a little bit counterintuitive to ask yourself: “How can you estimate the vaccine’s ability to prevent hospitalization using only data from hospitalized patients?” You might look at that on the surface and say: “Well, you can’t – that’s impossible.” But you can, actually, with this cool test-negative case-control design.

Here’s basically how it works. You take a population of people who are hospitalized and confirmed to have COVID. Some of them will be vaccinated and some of them will be unvaccinated. And the proportion of vaccinated and unvaccinated people doesn’t tell you very much because it depends on how that compares with the rates in the general population, for instance. Let me clarify this. If 100% of the population were vaccinated, then 100% of the people hospitalized with COVID would be vaccinated. That doesn’t mean vaccines are bad. Put another way, if 90% of the population were vaccinated and 60% of people hospitalized with COVID were vaccinated, that would actually show that the vaccines were working to some extent, all else being equal. So it’s not just the raw percentages that tell you anything. Some people are vaccinated, some people aren’t. You need to understand what the baseline rate is.

The test-negative case-control design looks at people who are hospitalized without COVID. Now who those people are (who the controls are, in this case) is something you really need to think about. In the case of this CDC study, they used people who were hospitalized with COVID-like illnesses – flu-like illnesses, respiratory illnesses, pneumonia, influenza, etc. This is a pretty good idea because it standardizes a little bit for people who have access to healthcare. They can get to a hospital and they’re the type of person who would go to a hospital when they’re feeling sick. That’s a better control than the general population overall, which is something I like about this design.

Some of those people who don’t have COVID (they’re in the hospital for flu or whatever) will have been vaccinated for COVID, and some will not have been vaccinated for COVID. And of course, we don’t expect COVID vaccines necessarily to protect against the flu or pneumonia, but that gives us a way to standardize.

Dr. F. Perry Wilson


If you look at these Venn diagrams, I’ve got vaccinated/unvaccinated being exactly the same proportion, which would suggest that you’re just as likely to be hospitalized with COVID if you’re vaccinated as you are to be hospitalized with some other respiratory illness, which suggests that the vaccine isn’t particularly effective.

Dr. F. Perry Wilson


However, if you saw something like this, looking at all those patients with flu and other non-COVID illnesses, a lot more of them had been vaccinated for COVID. What that tells you is that we’re seeing fewer vaccinated people hospitalized with COVID than we would expect because we have this standardization from other respiratory infections. We expect this many vaccinated people because that’s how many vaccinated people there are who show up with flu. But in the COVID population, there are fewer, and that would suggest that the vaccines are effective. So that is the test-negative case-control design. You can do the same thing with ICU stays and death.

There are some assumptions here which you might already be thinking about. The most important one is that vaccination status is not associated with the risk for the disease. I always think of older people in this context. During the pandemic, at least in the United States, older people were much more likely to be vaccinated but were also much more likely to contract COVID and be hospitalized with COVID. The test-negative design actually accounts for this in some sense, because older people are also more likely to be hospitalized for things like flu and pneumonia. So there’s some control there.

But to the extent that older people are uniquely susceptible to COVID compared with other respiratory illnesses, that would bias your results to make the vaccines look worse. So the standard approach here is to adjust for these things. I think the CDC adjusted for age, sex, race, ethnicity, and a few other things to settle down and see how effective the vaccines were.

Let’s get to a worked example.

Dr. F. Perry Wilson


This is the actual data from the CDC paper. They had 6,907 individuals who were hospitalized with COVID, and 26% of them were unvaccinated. What’s the baseline rate that we would expect to be unvaccinated? A total of 59,234 individuals were hospitalized with a non-COVID respiratory illness, and 23% of them were unvaccinated. So you can see that there were more unvaccinated people than you would think in the COVID group. In other words, fewer vaccinated people, which suggests that the vaccine works to some degree because it’s keeping some people out of the hospital.

Now, 26% versus 23% is not a very impressive difference. But it gets more interesting when you break it down by the type of vaccine and how long ago the individual was vaccinated.

Dr. F. Perry Wilson


Let’s walk through the “all” group on this figure. What you can see is the calculated vaccine effectiveness. If you look at just the monovalent vaccine here, we see a 20% vaccine effectiveness. This means that you’re preventing 20% of hospitalizations basically due to COVID by people getting vaccinated. That’s okay but it’s certainly not anything to write home about. But we see much better vaccine effectiveness with the bivalent vaccine if it had been received within 60 days.

This compares people who received the bivalent vaccine within 60 days in the COVID group and the non-COVID group. The concern that the vaccine was given very recently affects both groups equally so it shouldn’t result in bias there. You see a step-off in vaccine effectiveness from 60 days, 60-120 days, and greater than 120 days. This is 4 months, and you’ve gone from 60% to 20%. When you break that down by age, you can see a similar pattern in the 18-to-65 group and potentially some more protection the greater than 65 age group.

Why is vaccine efficacy going down? The study doesn’t tell us, but we can hypothesize that this might be an immunologic effect – the antibodies or the protective T cells are waning over time. This could also reflect changes in the virus in the environment as the virus seeks to evade certain immune responses. But overall, this suggests that waiting a year between booster doses may leave you exposed for quite some time, although the take-home here is that bivalent vaccines in general are probably a good idea for the proportion of people who haven’t gotten them.

When we look at critical illness and death, the numbers look a little bit better.

Dr. F. Perry Wilson


You can see that bivalent is better than monovalent – certainly pretty good if you’ve received it within 60 days. It does tend to wane a little bit, but not nearly as much. You’ve still got about 50% vaccine efficacy beyond 120 days when we’re looking at critical illness, which is stays in the ICU and death.

The overriding thing to think about when we think about vaccine policy is that the way you get immunized against COVID is either by vaccine or by getting infected with COVID, or both.

Centers for Disease Control and Prevention


This really interesting graph from the CDC (although it’s updated only through quarter three of 2022) shows the proportion of Americans, based on routine lab tests, who have varying degrees of protection against COVID. What you can see is that, by quarter three of 2022, just 3.6% of people who had blood drawn at a commercial laboratory had no evidence of infection or vaccination. In other words, almost no one was totally naive. Then 26% of people had never been infected – they only have vaccine antibodies – plus 22% of people had only been infected but had never been vaccinated. And then 50% of people had both. So there’s a tremendous amount of existing immunity out there.

The really interesting question about future vaccination and future booster doses is, how does it work on the background of this pattern? The CDC study doesn’t tell us, and I don’t think they have the data to tell us the vaccine efficacy in these different groups. Is it more effective in people who have only had an infection, for example? Is it more effective in people who have only had vaccination versus people who had both, or people who have no protection whatsoever? Those are the really interesting questions that need to be answered going forward as vaccine policy gets developed in the future.

I hope this was a helpful primer on how the test-negative case-control design can answer questions that seem a little bit unanswerable.

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale’s Clinical and Translational Research Accelerator. He disclosed no relevant conflicts of interest.
 

A version of this article first appeared on Medscape.com.

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Talking tobacco with youth? Ask the right questions

There is good news and bad news regarding the use of tobacco products by young people in the United States, according to the recently released findings from the 2021 Youth Risk Behavior Survey (YRBS).1 The use of cigarettes among high school students declined from 36.4% in 1997 to 6.0% in 2019.2 However, young people have replaced cigarettes with other tobacco products, including electronic vapor products (EVPs). So we need to ask specifically about these products.

Known by many names. EVPs are referred to as e-cigarettes, vapes, hookah pens, and mods. They usually contain nicotine, which is highly addictive, can affect brain development, and may lead to smoking of cigarettes.3 The most common reasons young people say they use EVPs are feelings of anxiety, stress, and depression, as well as the “high” associated with nicotine use.4

Use of EVPs among youth. The YRBS, which includes a representative sample of public and private school students in grades 9 to 12 in the 50 states, categorizes the use of EVPs as

  • ever use
  • current use (≥ 1 use during the 30 days before the survey), and
  • daily use (during the 30 days before the survey).

In 2021, 36.2% of young people reported ever use of EVPs (40.9% of females; 32.1% of males), 18% reported current use (21.4% of females; 14.9% of males), and 5% reported daily use (5.6% of females; 4.5% of males). Differences between racial and ethnic groups were minor, except for markedly lower rates in Asian youth (19.5% ever use, 5.5% current use, and 1.2% daily use).5

Current recommendations. The US Preventive Services Task Force (USPSTF) recommends education and brief counseling for school-age children and adolescents to prevent them from starting to use tobacco (including use of EVPs).6 The USPSTF also recommends tobacco cessation using behavioral interventions and/or pharmacotherapy for those ages 18 years and older.7

The USPSTF makes no recommendation on cessation for those younger than 18 years, citing weak evidence. However, it would be reasonable to offer behavioral interventions to younger current users. (Pharmacotherapy is not approved for use in children and adolescents.)

The take-home message. When we ask children and adolescents about use of tobacco products, we need to specifically mention EVPs and advise against their use.

References

1. CDC. Youth Risk Behavior Surveillance—United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):1-93. Accessed May 24, 2023. www.cdc.gov/mmwr/volumes/72/su/pdfs/su7201-h.pdf

2. Creamer MR, Everett Jones S, Gentzke AS, et al. Tobacco product use among high school students—Youth Risk Behavior Survey, United States, 2019. MMWR Morb Mortal Wkly Rep. 2020;69(suppl 1):56-63. doi: 10.15585/mmwr.su6901a7

3. National Academies of Sciences, Engineering, and Medicine. Public Health Consequences of E-Cigarettes. Washington, DC: National Academies Press; 2018. Accessed May 24, 2023. https://nap.nationalacademies.org/catalog/24952/public-health-consequences-of-e-cigarettes

4. Gentzke AS, Wang TW, Cornelius M, et al. Tobacco product use and associated factors among middle and high school students—National Youth Tobacco Survey, United States, 2021. MMWR Surveill Summ. 2022;71(no. SS-5):1-29. doi: 10.15585/mmwr.ss7105a1

5. Oliver BE, Jones SE, Hops ED, et al. Electronic vapor product use among high school students—Youth Risk Behavior Survey, United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):93-99. doi: 10.15585/mmwr.su7201a11

6. USPSTF. Tobacco use in children and adolescents: primary care interventions. Final recommendation statement. Published April 28, 2020. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-and-nicotine-use-prevention-in-children-and-adolescents-primary-care-interventions

7. USPSTF. Tobacco smoking cessation in adults, including pregnant persons: interventions. Final recommendation statement. Published January 19, 2021. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-use-in-adults-and-pregnant-women-counseling-and-interventions

Author and Disclosure Information

Doug Campos-Outcalt, MD, MPA, is a clinical professor at the University of Arizona College of Medicine and a senior lecturer with the University of Arizona College of Public Health. He’s also an assistant editor at The Journal of Family Practice.

The author reported no potential conflicts of interest relevant to this article.

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Doug Campos-Outcalt, MD, MPA, is a clinical professor at the University of Arizona College of Medicine and a senior lecturer with the University of Arizona College of Public Health. He’s also an assistant editor at The Journal of Family Practice.

The author reported no potential conflicts of interest relevant to this article.

Author and Disclosure Information

Doug Campos-Outcalt, MD, MPA, is a clinical professor at the University of Arizona College of Medicine and a senior lecturer with the University of Arizona College of Public Health. He’s also an assistant editor at The Journal of Family Practice.

The author reported no potential conflicts of interest relevant to this article.

There is good news and bad news regarding the use of tobacco products by young people in the United States, according to the recently released findings from the 2021 Youth Risk Behavior Survey (YRBS).1 The use of cigarettes among high school students declined from 36.4% in 1997 to 6.0% in 2019.2 However, young people have replaced cigarettes with other tobacco products, including electronic vapor products (EVPs). So we need to ask specifically about these products.

Known by many names. EVPs are referred to as e-cigarettes, vapes, hookah pens, and mods. They usually contain nicotine, which is highly addictive, can affect brain development, and may lead to smoking of cigarettes.3 The most common reasons young people say they use EVPs are feelings of anxiety, stress, and depression, as well as the “high” associated with nicotine use.4

Use of EVPs among youth. The YRBS, which includes a representative sample of public and private school students in grades 9 to 12 in the 50 states, categorizes the use of EVPs as

  • ever use
  • current use (≥ 1 use during the 30 days before the survey), and
  • daily use (during the 30 days before the survey).

In 2021, 36.2% of young people reported ever use of EVPs (40.9% of females; 32.1% of males), 18% reported current use (21.4% of females; 14.9% of males), and 5% reported daily use (5.6% of females; 4.5% of males). Differences between racial and ethnic groups were minor, except for markedly lower rates in Asian youth (19.5% ever use, 5.5% current use, and 1.2% daily use).5

Current recommendations. The US Preventive Services Task Force (USPSTF) recommends education and brief counseling for school-age children and adolescents to prevent them from starting to use tobacco (including use of EVPs).6 The USPSTF also recommends tobacco cessation using behavioral interventions and/or pharmacotherapy for those ages 18 years and older.7

The USPSTF makes no recommendation on cessation for those younger than 18 years, citing weak evidence. However, it would be reasonable to offer behavioral interventions to younger current users. (Pharmacotherapy is not approved for use in children and adolescents.)

The take-home message. When we ask children and adolescents about use of tobacco products, we need to specifically mention EVPs and advise against their use.

There is good news and bad news regarding the use of tobacco products by young people in the United States, according to the recently released findings from the 2021 Youth Risk Behavior Survey (YRBS).1 The use of cigarettes among high school students declined from 36.4% in 1997 to 6.0% in 2019.2 However, young people have replaced cigarettes with other tobacco products, including electronic vapor products (EVPs). So we need to ask specifically about these products.

Known by many names. EVPs are referred to as e-cigarettes, vapes, hookah pens, and mods. They usually contain nicotine, which is highly addictive, can affect brain development, and may lead to smoking of cigarettes.3 The most common reasons young people say they use EVPs are feelings of anxiety, stress, and depression, as well as the “high” associated with nicotine use.4

Use of EVPs among youth. The YRBS, which includes a representative sample of public and private school students in grades 9 to 12 in the 50 states, categorizes the use of EVPs as

  • ever use
  • current use (≥ 1 use during the 30 days before the survey), and
  • daily use (during the 30 days before the survey).

In 2021, 36.2% of young people reported ever use of EVPs (40.9% of females; 32.1% of males), 18% reported current use (21.4% of females; 14.9% of males), and 5% reported daily use (5.6% of females; 4.5% of males). Differences between racial and ethnic groups were minor, except for markedly lower rates in Asian youth (19.5% ever use, 5.5% current use, and 1.2% daily use).5

Current recommendations. The US Preventive Services Task Force (USPSTF) recommends education and brief counseling for school-age children and adolescents to prevent them from starting to use tobacco (including use of EVPs).6 The USPSTF also recommends tobacco cessation using behavioral interventions and/or pharmacotherapy for those ages 18 years and older.7

The USPSTF makes no recommendation on cessation for those younger than 18 years, citing weak evidence. However, it would be reasonable to offer behavioral interventions to younger current users. (Pharmacotherapy is not approved for use in children and adolescents.)

The take-home message. When we ask children and adolescents about use of tobacco products, we need to specifically mention EVPs and advise against their use.

References

1. CDC. Youth Risk Behavior Surveillance—United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):1-93. Accessed May 24, 2023. www.cdc.gov/mmwr/volumes/72/su/pdfs/su7201-h.pdf

2. Creamer MR, Everett Jones S, Gentzke AS, et al. Tobacco product use among high school students—Youth Risk Behavior Survey, United States, 2019. MMWR Morb Mortal Wkly Rep. 2020;69(suppl 1):56-63. doi: 10.15585/mmwr.su6901a7

3. National Academies of Sciences, Engineering, and Medicine. Public Health Consequences of E-Cigarettes. Washington, DC: National Academies Press; 2018. Accessed May 24, 2023. https://nap.nationalacademies.org/catalog/24952/public-health-consequences-of-e-cigarettes

4. Gentzke AS, Wang TW, Cornelius M, et al. Tobacco product use and associated factors among middle and high school students—National Youth Tobacco Survey, United States, 2021. MMWR Surveill Summ. 2022;71(no. SS-5):1-29. doi: 10.15585/mmwr.ss7105a1

5. Oliver BE, Jones SE, Hops ED, et al. Electronic vapor product use among high school students—Youth Risk Behavior Survey, United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):93-99. doi: 10.15585/mmwr.su7201a11

6. USPSTF. Tobacco use in children and adolescents: primary care interventions. Final recommendation statement. Published April 28, 2020. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-and-nicotine-use-prevention-in-children-and-adolescents-primary-care-interventions

7. USPSTF. Tobacco smoking cessation in adults, including pregnant persons: interventions. Final recommendation statement. Published January 19, 2021. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-use-in-adults-and-pregnant-women-counseling-and-interventions

References

1. CDC. Youth Risk Behavior Surveillance—United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):1-93. Accessed May 24, 2023. www.cdc.gov/mmwr/volumes/72/su/pdfs/su7201-h.pdf

2. Creamer MR, Everett Jones S, Gentzke AS, et al. Tobacco product use among high school students—Youth Risk Behavior Survey, United States, 2019. MMWR Morb Mortal Wkly Rep. 2020;69(suppl 1):56-63. doi: 10.15585/mmwr.su6901a7

3. National Academies of Sciences, Engineering, and Medicine. Public Health Consequences of E-Cigarettes. Washington, DC: National Academies Press; 2018. Accessed May 24, 2023. https://nap.nationalacademies.org/catalog/24952/public-health-consequences-of-e-cigarettes

4. Gentzke AS, Wang TW, Cornelius M, et al. Tobacco product use and associated factors among middle and high school students—National Youth Tobacco Survey, United States, 2021. MMWR Surveill Summ. 2022;71(no. SS-5):1-29. doi: 10.15585/mmwr.ss7105a1

5. Oliver BE, Jones SE, Hops ED, et al. Electronic vapor product use among high school students—Youth Risk Behavior Survey, United States, 2021. MMWR Morb Mortal Wkly Rep. 2023;72(suppl 1):93-99. doi: 10.15585/mmwr.su7201a11

6. USPSTF. Tobacco use in children and adolescents: primary care interventions. Final recommendation statement. Published April 28, 2020. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-and-nicotine-use-prevention-in-children-and-adolescents-primary-care-interventions

7. USPSTF. Tobacco smoking cessation in adults, including pregnant persons: interventions. Final recommendation statement. Published January 19, 2021. Accessed May 24, 2023. www.uspreventiveservicestaskforce.org/uspstf/recommendation/tobacco-use-in-adults-and-pregnant-women-counseling-and-interventions

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Investigating the etiology of recurrent pregnancy loss

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With attention to the timing of loss

Introduction: Reassurance through pregnancy loss and workups

Pregnancy loss is not an uncommon complication but it can be associated with significant stress among parents and loved ones when it occurs. Especially when recurrent, it also becomes a medical dilemma for physicians and nurses because the cause is not always obvious immediately, and even with exploration, the cause may not always be found.

First and foremost, it is important that physicians provide counseling and reassurance to families experiencing loss, and that they encourage a level of patience while the investigation for loss is done. Investigations tend not to be linear. One must look at a number of diagnostic areas including genetics, anatomy, immunology, and infections.

Dr. E. Albert Reece

Even with an extensive workup, what often is found are potential associations rather than precise causes. For instance, one may find that certain antibodies or certain conditions are present, or that certain anatomic structures are abnormal. While such findings are not necessarily causative, there are therapeutic interventions that we can offer to address many of the conditions (e.g., surgical correction of the septate uterus, and low-dose aspirin and heparin for antiphospholipid syndrome).

Less than 1% of couples experience recurrent pregnancy loss (traditionally defined as three or more losses), so parents who experience one loss should be given reassurance that their loss was likely a sporadic miscarriage and that chances of recurrence will be low. Even as workups proceed, reassurance is important.

For this month’s Master Class in Obstetrics we’ve invited Wendy L. Kinzler, MD, and Anthony Vintzileos, MD, both of whom have expertise in the area of recurrent pregnancy loss, to review the potential causes and the management approach. They focus on the first trimester, when genetic causes predominate, and the early second trimester, when undetected uterine factors can be at play. They explain that the gestational age at which recurrent losses occur is an important factor in decoding etiology and management.

Dr. Kinzler is associate dean, graduate medical education, and professor of obstetrics and gynecology at NYU Long Island School of Medicine, Mineola, N.Y., and Dr. Vintzileos is chief patient safety officer for obstetrics, Northwell Health–Western Region, and professor in the department of obstetrics and gynecology in the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, N.Y. Dr. Kinzler and Dr. Vintzileos reported no relevant disclosures.
 

E. Albert Reece, MD, PhD, MBA, a maternal-fetal medicine specialist, is dean emeritus of the University of Maryland School of Medicine, former university executive vice president; currently the endowed professor and director of the Center for Advanced Research Training and Innovation (CARTI), and senior scientist in the Center for Birth Defects Research. Dr. Reece reported no relevant disclosures. He is the medical editor of this column. Contact him at [email protected].

Investigating the etiology of recurrent pregnancy loss

Pregnancy loss is defined as a loss occurring at < 20 weeks’ gestation. Any pregnancy loss is a devastating experience and couples deserve a thoughtful approach to identifying possible causes and/or predisposing factors.

Consideration of the timing of the pregnancy loss can provide a useful guide to this evaluation, as etiologies vary depending on when in gestation losses occur. In this Master Class, we will address the evaluation of pregnancy loss at < 20 weeks’ gestation, with particular attention to first trimester and early second trimester causes. Literature on the role of the cervix and intra-amniotic infection in midtrimester loss is extensive and will not be covered here.

Although early first trimester miscarriage is common, occurring in approximately 15% of clinically recognized pregnancies, only 2%-3% of couples experience two or more miscarriages and 0.5%-1% experience three or more.

When to begin a diagnostic workup should be part of a shared decision-making process, taking into consideration future family planning, parity, number of previous losses, and notably, the gestational age at which loss(es) occurred. Recurrence rates for first trimester miscarriage are similar after two versus three consecutive losses and either situation usually prompts an evaluation, whereas any second-trimester loss should be evaluated.

Increasingly, we are appreciating the value of a more targeted, gestational age–driven approach to the evaluation of pregnancy loss in an attempt to provide grieving parents with useful information without subjecting them to a wide array of expensive and unnecessary tests.
 

Genetic causes

The earlier the pregnancy loss, the more likely it is the result of abnormal fetal genetics. Genetic factors should be considered as the most likely cause for first trimester pregnancy losses (especially those occurring at < 10 weeks’ gestation), the most frequent being autosomal trisomies or monosomy X. The vast majority of trisomy conceptuses are sporadic in nature and are related to the natural aging process of the ovary (increasing the rate of meiotic nondisjunction).

NYU Long Island School of Medicine
Dr. Wendy L. Kinzler

If fetal aneuploidy is identified in a pregnancy loss, couples can be counseled about the definitive cause of the loss and can be counseled about recurrence based on age-related risks and/or tests of ovarian reserve. Recurrent pregnancy loss (RPL) is only rarely associated with a parental translocation (< 5%). Testing parental karyotypes should be reserved for cases in which the fetal karyotypes are unknown or in which an unbalanced translocation was identified in the fetus.

When a first trimester pregnancy loss is diagnosed, chorionic villus sampling (CVS) with microarray testing is the most reliable and comprehensive method for evaluating potential genetic causes. It provides valuable information even when cells are not viable and reduces the risk of maternal cell contamination – two significant limitations to standard karyotype analysis performed on tissue passed spontaneously or at the time of D&C. Studies of products of conception (POC) testing with microarray have documented the detection of abnormalities in an additional 10%-15% of cases compared with traditional karyotype analysis.

Hofstra/Northwell
Dr. Anthony Vintzileos

When CVS is not feasible, testing maternal serum for cell-free DNA is a reasonable alternative. In a prospective cohort study of 50 maternal blood samples taken after fetal demise, 76% of samples yielded cell-free DNA results, meaning fetal fractions were within the detectable range. The higher the gestational age at the time of loss, the higher the chance of obtaining a result: Findings in the study were possible in 88% of samples when the gestational age was 8 weeks or greater, and in 53% of cases involving a lower gestational age. The time from demise to blood draw did not affect the likelihood of obtaining a result (Obstet Gynecol. 2015 Jun;125[6]:1321-29).

When neither CVS nor cell-free DNA analysis is feasible, analysis of either spontaneously passed tissue or tissue obtained at the time of a D&C may still be worthwhile. Maternal cell contamination, of course, is the main downside.

A paper published in 2020 documented the value of refocusing the initial workup. Researchers reported that 57% of 1,400 cases of recurrent pregnancy loss went unexplained using the 2012 ASRM guidelines, which included parental karyotyping but not POC cytogenetic analysis. When parental karyotypes were omitted from the initial workup and POC analysis with 24-chromosome microarray was added, at least one potential explanation for loss could be identified in 92% of cases. Only 8% were left “unexplained” (Curr Opin Obstet Gynecol. 2020 Oct;32[5]:371-9).
 

 

 

When genetics are ruled out

Issues that are top of mind when we lack genetic information or when genetic causes are ruled out include maternal metabolic disorders (uncontrolled diabetes, obesity, uncontrolled thyroid disease), environmental exposures (smoking), uterine abnormalities, and antiphospholipid syndrome.

Thorough evaluation of the uterine cavity after recurrent first trimester miscarriage – or after any second trimester loss – is too often a missing element of investigation. It is a vital component of the evaluation, and information about uterine structure is easily obtained.

A saline infusion sonogram (SIS) allows us to look at the external contour of the uterus, assess the myometrium for muscular abnormalities, visualize the uterine lining, and assess uterine orientation. Performed in the nonpregnant state, and ideally coupled with 3D technology, this relatively simple test can identify congenital uterine anomalies, intracavitary abnormalities (such as fibroids, polyps, or synechiae) which can surgically be removed prior to another pregnancy, a retroverted uterus that may be predisposed to incarceration during pregnancy, and other potentially impactful conditions, such as adenomyosis.
 

Structural anomalies

Congenital uterine anomalies are associated with first trimester miscarriage, second trimester pregnancy loss, and preterm birth. A uterine septum is of particular concern for early miscarriage, as the early embryo can implant on the relatively avascular septum.

Other congenital uterine anomalies (bicornuate, didelphys, unicornuate) can be associated with concomitant cervical structural abnormalities leading to cervical insufficiency and/or result in pathologic uterine stretch of a space-limited cavity, leading to midtrimester loss or preterm birth. The diagnosis of these anomalies is an important part of the evaluation of pregnancy loss, as it can guide monitoring in future pregnancies, or can be surgically corrected, as in the case of a uterine septum, significantly improving pregnancy outcomes.

A short cervix can result either congenitally or from injury or trauma and may also be associated with cervical insufficiency and miscarriage. It can be evaluated and monitored by ultrasound and, in some cases, treated by surgical cerclage. Pregnancy losses due to cervical insufficiency usually occur after 16 weeks of gestation and frequently are associated with intra-amniotic infections.
 

Incarcerated uterus and adenomyosis

Other uterine factors that can contribute to pregnancy loss and that are largely underdiagnosed or undiagnosed are an incarcerated retroverted uterus and adenomyosis.

Martin R. Chavez, MD. NYU Long Island School of Medicine
(Left image) Incarcerated retroverted uterus at 14 weeks gestation. Note the anteriorly displaced and compressed cervix and cervical canal (dotted yellow line) and the fundus wedged posteriorly (white arrow). The first impression is that the placenta is posterior (blue arrow) and the fetus is cephalic. (Right image) The same pregnancy after correction of the incarcerated uterus. Note the placenta is actually anterior (blue arrow) and the fetus is breech.

Most of the time, a retroverted uterus naturally assumes an anteverted position by the late first trimester or early second trimester, allowing for continued growth of the uterus and developing fetus. In approximately 10% of cases, however, the retroverted uterus becomes “stuck” or incarcerated in the posterior pelvis. This is more likely if there are large uterine fibroids or in the presence of pelvic adhesions due to endometriosis or previous pelvic surgery.

When this occurs, the fundus is wedged on the sacral promontory (may cause pelvic discomfort and constipation) and the cervix is markedly displaced anteriorly under the pubic symphysis (causing bladder outlet obstruction and urinary retention).

It is critical that ob.gyns. and emergency medicine providers are aware of this condition, which typically presents between 12 and 16 weeks’ gestation. The most frequent complaint is lower abdominal discomfort due to distended bladder and inability to void, which usually leads to bladder catheterization with drainage of large amounts of urine. An incarcerated uterus can predispose to pregnancy loss during this time (few other conditions cause loss during this time window), presumably due to impaired uterine artery blood flow.

Once the diagnosis is made, uterine incarceration may be corrected by elevating the gravid uterus out of the pelvis either manually, or by using a transvaginal ultrasound probe. (The latter minimally invasive approach was described in March at the American Institute of Ultrasound in Medicine’s annual conference by Martin Chavez, MD, and coinvestigators. More invasive approaches are rarely required but include CO2 intraperitoneal insufflation, as used prior to laparoscopy, or laparotomy.

The later in gestation the condition is allowed to persist, the less likely correction will be possible due to the enlarging fundus. Correction between 14 and 16 weeks, or earlier if symptoms develop, is recommended.

Martin R. Chavez, MD. NYU Long Island School of Medicine
Retroverted uterus demonstrating marked asymmetry of anterior (A) and posterior (P) uterine walls, in addition to heterogeneous uterine architecture, consistent with adenomyosis.


Adenomyosis, another poorly understood condition impacting pregnancy outcomes, has been associated with increased rates of miscarriage after in vitro fertilization (in addition to lower implantation rates); a meta-analysis published almost a decade ago found a risk ratio of miscarriage of 2.12 (95% confidence interval, 1.2-3.75) in women with adenomyosis versus those without (Hum Reprod. 2014 May;29[5]:964-77). However, outside of reproductive endocrinology, its impact on pregnancy outcomes in the obstetrical literature is not well recognized.

Although more research is necessary, we believe that adenomyosis should be considered a risk factor for pregnancy loss in the second trimester. The presence of endometrial glands within the myometrium, predisposing for an inflammatory environment, can lead to abnormal implantation, poor uterine distensibility, sterile inflammation, and early cervical insufficiency. As the prevalence of adenomyosis increases with age and maternal ages are increasing, this is an important condition to consider.

Diagnosis is typically made with MRI (although pathology of a hysterectomy specimen is the gold standard). Ultrasound findings consistent with adenomyosis are not routinely assessed and have not been studied in a gravid uterus. Nonetheless, a heightened sense of awareness about this possible contributor to pregnancy loss is very important.
 
 

 

A word about antiphospholipid syndrome

Antiphospholipid syndrome can cause a variety of adverse pregnancy outcomes, including first and second trimester pregnancy loss, fetal demise, fetal growth restriction, preeclampsia, preterm birth, and maternal thromboembolism. The classical presentation of miscarriage due to untreated antiphospholipid antibody syndrome is early severe fetal growth restriction, oligohydramnios, and IUFD in the second trimester.

The diagnosis requires at least one clinical criterion and one laboratory criterion. The mere presence of low level antibodies does not make the diagnosis of antiphospholipid antibody syndrome, and care should be taken to consider both the clinical and laboratory diagnostic criteria to make an accurate diagnosis.

When present, close maternal and fetal surveillance and a combination of low-dose aspirin and heparin are mainstays of treatment. The majority of studies suggest that low-molecular weight heparin (LMWH) and unfractionated heparin have comparable clinical efficacy. However, if a recurrent loss is experienced despite treatment with LMWH, the use of unfractionated heparin in a subsequent pregnancy should be considered.

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With attention to the timing of loss

With attention to the timing of loss

Introduction: Reassurance through pregnancy loss and workups

Pregnancy loss is not an uncommon complication but it can be associated with significant stress among parents and loved ones when it occurs. Especially when recurrent, it also becomes a medical dilemma for physicians and nurses because the cause is not always obvious immediately, and even with exploration, the cause may not always be found.

First and foremost, it is important that physicians provide counseling and reassurance to families experiencing loss, and that they encourage a level of patience while the investigation for loss is done. Investigations tend not to be linear. One must look at a number of diagnostic areas including genetics, anatomy, immunology, and infections.

Dr. E. Albert Reece

Even with an extensive workup, what often is found are potential associations rather than precise causes. For instance, one may find that certain antibodies or certain conditions are present, or that certain anatomic structures are abnormal. While such findings are not necessarily causative, there are therapeutic interventions that we can offer to address many of the conditions (e.g., surgical correction of the septate uterus, and low-dose aspirin and heparin for antiphospholipid syndrome).

Less than 1% of couples experience recurrent pregnancy loss (traditionally defined as three or more losses), so parents who experience one loss should be given reassurance that their loss was likely a sporadic miscarriage and that chances of recurrence will be low. Even as workups proceed, reassurance is important.

For this month’s Master Class in Obstetrics we’ve invited Wendy L. Kinzler, MD, and Anthony Vintzileos, MD, both of whom have expertise in the area of recurrent pregnancy loss, to review the potential causes and the management approach. They focus on the first trimester, when genetic causes predominate, and the early second trimester, when undetected uterine factors can be at play. They explain that the gestational age at which recurrent losses occur is an important factor in decoding etiology and management.

Dr. Kinzler is associate dean, graduate medical education, and professor of obstetrics and gynecology at NYU Long Island School of Medicine, Mineola, N.Y., and Dr. Vintzileos is chief patient safety officer for obstetrics, Northwell Health–Western Region, and professor in the department of obstetrics and gynecology in the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, N.Y. Dr. Kinzler and Dr. Vintzileos reported no relevant disclosures.
 

E. Albert Reece, MD, PhD, MBA, a maternal-fetal medicine specialist, is dean emeritus of the University of Maryland School of Medicine, former university executive vice president; currently the endowed professor and director of the Center for Advanced Research Training and Innovation (CARTI), and senior scientist in the Center for Birth Defects Research. Dr. Reece reported no relevant disclosures. He is the medical editor of this column. Contact him at [email protected].

Investigating the etiology of recurrent pregnancy loss

Pregnancy loss is defined as a loss occurring at < 20 weeks’ gestation. Any pregnancy loss is a devastating experience and couples deserve a thoughtful approach to identifying possible causes and/or predisposing factors.

Consideration of the timing of the pregnancy loss can provide a useful guide to this evaluation, as etiologies vary depending on when in gestation losses occur. In this Master Class, we will address the evaluation of pregnancy loss at < 20 weeks’ gestation, with particular attention to first trimester and early second trimester causes. Literature on the role of the cervix and intra-amniotic infection in midtrimester loss is extensive and will not be covered here.

Although early first trimester miscarriage is common, occurring in approximately 15% of clinically recognized pregnancies, only 2%-3% of couples experience two or more miscarriages and 0.5%-1% experience three or more.

When to begin a diagnostic workup should be part of a shared decision-making process, taking into consideration future family planning, parity, number of previous losses, and notably, the gestational age at which loss(es) occurred. Recurrence rates for first trimester miscarriage are similar after two versus three consecutive losses and either situation usually prompts an evaluation, whereas any second-trimester loss should be evaluated.

Increasingly, we are appreciating the value of a more targeted, gestational age–driven approach to the evaluation of pregnancy loss in an attempt to provide grieving parents with useful information without subjecting them to a wide array of expensive and unnecessary tests.
 

Genetic causes

The earlier the pregnancy loss, the more likely it is the result of abnormal fetal genetics. Genetic factors should be considered as the most likely cause for first trimester pregnancy losses (especially those occurring at < 10 weeks’ gestation), the most frequent being autosomal trisomies or monosomy X. The vast majority of trisomy conceptuses are sporadic in nature and are related to the natural aging process of the ovary (increasing the rate of meiotic nondisjunction).

NYU Long Island School of Medicine
Dr. Wendy L. Kinzler

If fetal aneuploidy is identified in a pregnancy loss, couples can be counseled about the definitive cause of the loss and can be counseled about recurrence based on age-related risks and/or tests of ovarian reserve. Recurrent pregnancy loss (RPL) is only rarely associated with a parental translocation (< 5%). Testing parental karyotypes should be reserved for cases in which the fetal karyotypes are unknown or in which an unbalanced translocation was identified in the fetus.

When a first trimester pregnancy loss is diagnosed, chorionic villus sampling (CVS) with microarray testing is the most reliable and comprehensive method for evaluating potential genetic causes. It provides valuable information even when cells are not viable and reduces the risk of maternal cell contamination – two significant limitations to standard karyotype analysis performed on tissue passed spontaneously or at the time of D&C. Studies of products of conception (POC) testing with microarray have documented the detection of abnormalities in an additional 10%-15% of cases compared with traditional karyotype analysis.

Hofstra/Northwell
Dr. Anthony Vintzileos

When CVS is not feasible, testing maternal serum for cell-free DNA is a reasonable alternative. In a prospective cohort study of 50 maternal blood samples taken after fetal demise, 76% of samples yielded cell-free DNA results, meaning fetal fractions were within the detectable range. The higher the gestational age at the time of loss, the higher the chance of obtaining a result: Findings in the study were possible in 88% of samples when the gestational age was 8 weeks or greater, and in 53% of cases involving a lower gestational age. The time from demise to blood draw did not affect the likelihood of obtaining a result (Obstet Gynecol. 2015 Jun;125[6]:1321-29).

When neither CVS nor cell-free DNA analysis is feasible, analysis of either spontaneously passed tissue or tissue obtained at the time of a D&C may still be worthwhile. Maternal cell contamination, of course, is the main downside.

A paper published in 2020 documented the value of refocusing the initial workup. Researchers reported that 57% of 1,400 cases of recurrent pregnancy loss went unexplained using the 2012 ASRM guidelines, which included parental karyotyping but not POC cytogenetic analysis. When parental karyotypes were omitted from the initial workup and POC analysis with 24-chromosome microarray was added, at least one potential explanation for loss could be identified in 92% of cases. Only 8% were left “unexplained” (Curr Opin Obstet Gynecol. 2020 Oct;32[5]:371-9).
 

 

 

When genetics are ruled out

Issues that are top of mind when we lack genetic information or when genetic causes are ruled out include maternal metabolic disorders (uncontrolled diabetes, obesity, uncontrolled thyroid disease), environmental exposures (smoking), uterine abnormalities, and antiphospholipid syndrome.

Thorough evaluation of the uterine cavity after recurrent first trimester miscarriage – or after any second trimester loss – is too often a missing element of investigation. It is a vital component of the evaluation, and information about uterine structure is easily obtained.

A saline infusion sonogram (SIS) allows us to look at the external contour of the uterus, assess the myometrium for muscular abnormalities, visualize the uterine lining, and assess uterine orientation. Performed in the nonpregnant state, and ideally coupled with 3D technology, this relatively simple test can identify congenital uterine anomalies, intracavitary abnormalities (such as fibroids, polyps, or synechiae) which can surgically be removed prior to another pregnancy, a retroverted uterus that may be predisposed to incarceration during pregnancy, and other potentially impactful conditions, such as adenomyosis.
 

Structural anomalies

Congenital uterine anomalies are associated with first trimester miscarriage, second trimester pregnancy loss, and preterm birth. A uterine septum is of particular concern for early miscarriage, as the early embryo can implant on the relatively avascular septum.

Other congenital uterine anomalies (bicornuate, didelphys, unicornuate) can be associated with concomitant cervical structural abnormalities leading to cervical insufficiency and/or result in pathologic uterine stretch of a space-limited cavity, leading to midtrimester loss or preterm birth. The diagnosis of these anomalies is an important part of the evaluation of pregnancy loss, as it can guide monitoring in future pregnancies, or can be surgically corrected, as in the case of a uterine septum, significantly improving pregnancy outcomes.

A short cervix can result either congenitally or from injury or trauma and may also be associated with cervical insufficiency and miscarriage. It can be evaluated and monitored by ultrasound and, in some cases, treated by surgical cerclage. Pregnancy losses due to cervical insufficiency usually occur after 16 weeks of gestation and frequently are associated with intra-amniotic infections.
 

Incarcerated uterus and adenomyosis

Other uterine factors that can contribute to pregnancy loss and that are largely underdiagnosed or undiagnosed are an incarcerated retroverted uterus and adenomyosis.

Martin R. Chavez, MD. NYU Long Island School of Medicine
(Left image) Incarcerated retroverted uterus at 14 weeks gestation. Note the anteriorly displaced and compressed cervix and cervical canal (dotted yellow line) and the fundus wedged posteriorly (white arrow). The first impression is that the placenta is posterior (blue arrow) and the fetus is cephalic. (Right image) The same pregnancy after correction of the incarcerated uterus. Note the placenta is actually anterior (blue arrow) and the fetus is breech.

Most of the time, a retroverted uterus naturally assumes an anteverted position by the late first trimester or early second trimester, allowing for continued growth of the uterus and developing fetus. In approximately 10% of cases, however, the retroverted uterus becomes “stuck” or incarcerated in the posterior pelvis. This is more likely if there are large uterine fibroids or in the presence of pelvic adhesions due to endometriosis or previous pelvic surgery.

When this occurs, the fundus is wedged on the sacral promontory (may cause pelvic discomfort and constipation) and the cervix is markedly displaced anteriorly under the pubic symphysis (causing bladder outlet obstruction and urinary retention).

It is critical that ob.gyns. and emergency medicine providers are aware of this condition, which typically presents between 12 and 16 weeks’ gestation. The most frequent complaint is lower abdominal discomfort due to distended bladder and inability to void, which usually leads to bladder catheterization with drainage of large amounts of urine. An incarcerated uterus can predispose to pregnancy loss during this time (few other conditions cause loss during this time window), presumably due to impaired uterine artery blood flow.

Once the diagnosis is made, uterine incarceration may be corrected by elevating the gravid uterus out of the pelvis either manually, or by using a transvaginal ultrasound probe. (The latter minimally invasive approach was described in March at the American Institute of Ultrasound in Medicine’s annual conference by Martin Chavez, MD, and coinvestigators. More invasive approaches are rarely required but include CO2 intraperitoneal insufflation, as used prior to laparoscopy, or laparotomy.

The later in gestation the condition is allowed to persist, the less likely correction will be possible due to the enlarging fundus. Correction between 14 and 16 weeks, or earlier if symptoms develop, is recommended.

Martin R. Chavez, MD. NYU Long Island School of Medicine
Retroverted uterus demonstrating marked asymmetry of anterior (A) and posterior (P) uterine walls, in addition to heterogeneous uterine architecture, consistent with adenomyosis.


Adenomyosis, another poorly understood condition impacting pregnancy outcomes, has been associated with increased rates of miscarriage after in vitro fertilization (in addition to lower implantation rates); a meta-analysis published almost a decade ago found a risk ratio of miscarriage of 2.12 (95% confidence interval, 1.2-3.75) in women with adenomyosis versus those without (Hum Reprod. 2014 May;29[5]:964-77). However, outside of reproductive endocrinology, its impact on pregnancy outcomes in the obstetrical literature is not well recognized.

Although more research is necessary, we believe that adenomyosis should be considered a risk factor for pregnancy loss in the second trimester. The presence of endometrial glands within the myometrium, predisposing for an inflammatory environment, can lead to abnormal implantation, poor uterine distensibility, sterile inflammation, and early cervical insufficiency. As the prevalence of adenomyosis increases with age and maternal ages are increasing, this is an important condition to consider.

Diagnosis is typically made with MRI (although pathology of a hysterectomy specimen is the gold standard). Ultrasound findings consistent with adenomyosis are not routinely assessed and have not been studied in a gravid uterus. Nonetheless, a heightened sense of awareness about this possible contributor to pregnancy loss is very important.
 
 

 

A word about antiphospholipid syndrome

Antiphospholipid syndrome can cause a variety of adverse pregnancy outcomes, including first and second trimester pregnancy loss, fetal demise, fetal growth restriction, preeclampsia, preterm birth, and maternal thromboembolism. The classical presentation of miscarriage due to untreated antiphospholipid antibody syndrome is early severe fetal growth restriction, oligohydramnios, and IUFD in the second trimester.

The diagnosis requires at least one clinical criterion and one laboratory criterion. The mere presence of low level antibodies does not make the diagnosis of antiphospholipid antibody syndrome, and care should be taken to consider both the clinical and laboratory diagnostic criteria to make an accurate diagnosis.

When present, close maternal and fetal surveillance and a combination of low-dose aspirin and heparin are mainstays of treatment. The majority of studies suggest that low-molecular weight heparin (LMWH) and unfractionated heparin have comparable clinical efficacy. However, if a recurrent loss is experienced despite treatment with LMWH, the use of unfractionated heparin in a subsequent pregnancy should be considered.

Introduction: Reassurance through pregnancy loss and workups

Pregnancy loss is not an uncommon complication but it can be associated with significant stress among parents and loved ones when it occurs. Especially when recurrent, it also becomes a medical dilemma for physicians and nurses because the cause is not always obvious immediately, and even with exploration, the cause may not always be found.

First and foremost, it is important that physicians provide counseling and reassurance to families experiencing loss, and that they encourage a level of patience while the investigation for loss is done. Investigations tend not to be linear. One must look at a number of diagnostic areas including genetics, anatomy, immunology, and infections.

Dr. E. Albert Reece

Even with an extensive workup, what often is found are potential associations rather than precise causes. For instance, one may find that certain antibodies or certain conditions are present, or that certain anatomic structures are abnormal. While such findings are not necessarily causative, there are therapeutic interventions that we can offer to address many of the conditions (e.g., surgical correction of the septate uterus, and low-dose aspirin and heparin for antiphospholipid syndrome).

Less than 1% of couples experience recurrent pregnancy loss (traditionally defined as three or more losses), so parents who experience one loss should be given reassurance that their loss was likely a sporadic miscarriage and that chances of recurrence will be low. Even as workups proceed, reassurance is important.

For this month’s Master Class in Obstetrics we’ve invited Wendy L. Kinzler, MD, and Anthony Vintzileos, MD, both of whom have expertise in the area of recurrent pregnancy loss, to review the potential causes and the management approach. They focus on the first trimester, when genetic causes predominate, and the early second trimester, when undetected uterine factors can be at play. They explain that the gestational age at which recurrent losses occur is an important factor in decoding etiology and management.

Dr. Kinzler is associate dean, graduate medical education, and professor of obstetrics and gynecology at NYU Long Island School of Medicine, Mineola, N.Y., and Dr. Vintzileos is chief patient safety officer for obstetrics, Northwell Health–Western Region, and professor in the department of obstetrics and gynecology in the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, N.Y. Dr. Kinzler and Dr. Vintzileos reported no relevant disclosures.
 

E. Albert Reece, MD, PhD, MBA, a maternal-fetal medicine specialist, is dean emeritus of the University of Maryland School of Medicine, former university executive vice president; currently the endowed professor and director of the Center for Advanced Research Training and Innovation (CARTI), and senior scientist in the Center for Birth Defects Research. Dr. Reece reported no relevant disclosures. He is the medical editor of this column. Contact him at [email protected].

Investigating the etiology of recurrent pregnancy loss

Pregnancy loss is defined as a loss occurring at < 20 weeks’ gestation. Any pregnancy loss is a devastating experience and couples deserve a thoughtful approach to identifying possible causes and/or predisposing factors.

Consideration of the timing of the pregnancy loss can provide a useful guide to this evaluation, as etiologies vary depending on when in gestation losses occur. In this Master Class, we will address the evaluation of pregnancy loss at < 20 weeks’ gestation, with particular attention to first trimester and early second trimester causes. Literature on the role of the cervix and intra-amniotic infection in midtrimester loss is extensive and will not be covered here.

Although early first trimester miscarriage is common, occurring in approximately 15% of clinically recognized pregnancies, only 2%-3% of couples experience two or more miscarriages and 0.5%-1% experience three or more.

When to begin a diagnostic workup should be part of a shared decision-making process, taking into consideration future family planning, parity, number of previous losses, and notably, the gestational age at which loss(es) occurred. Recurrence rates for first trimester miscarriage are similar after two versus three consecutive losses and either situation usually prompts an evaluation, whereas any second-trimester loss should be evaluated.

Increasingly, we are appreciating the value of a more targeted, gestational age–driven approach to the evaluation of pregnancy loss in an attempt to provide grieving parents with useful information without subjecting them to a wide array of expensive and unnecessary tests.
 

Genetic causes

The earlier the pregnancy loss, the more likely it is the result of abnormal fetal genetics. Genetic factors should be considered as the most likely cause for first trimester pregnancy losses (especially those occurring at < 10 weeks’ gestation), the most frequent being autosomal trisomies or monosomy X. The vast majority of trisomy conceptuses are sporadic in nature and are related to the natural aging process of the ovary (increasing the rate of meiotic nondisjunction).

NYU Long Island School of Medicine
Dr. Wendy L. Kinzler

If fetal aneuploidy is identified in a pregnancy loss, couples can be counseled about the definitive cause of the loss and can be counseled about recurrence based on age-related risks and/or tests of ovarian reserve. Recurrent pregnancy loss (RPL) is only rarely associated with a parental translocation (< 5%). Testing parental karyotypes should be reserved for cases in which the fetal karyotypes are unknown or in which an unbalanced translocation was identified in the fetus.

When a first trimester pregnancy loss is diagnosed, chorionic villus sampling (CVS) with microarray testing is the most reliable and comprehensive method for evaluating potential genetic causes. It provides valuable information even when cells are not viable and reduces the risk of maternal cell contamination – two significant limitations to standard karyotype analysis performed on tissue passed spontaneously or at the time of D&C. Studies of products of conception (POC) testing with microarray have documented the detection of abnormalities in an additional 10%-15% of cases compared with traditional karyotype analysis.

Hofstra/Northwell
Dr. Anthony Vintzileos

When CVS is not feasible, testing maternal serum for cell-free DNA is a reasonable alternative. In a prospective cohort study of 50 maternal blood samples taken after fetal demise, 76% of samples yielded cell-free DNA results, meaning fetal fractions were within the detectable range. The higher the gestational age at the time of loss, the higher the chance of obtaining a result: Findings in the study were possible in 88% of samples when the gestational age was 8 weeks or greater, and in 53% of cases involving a lower gestational age. The time from demise to blood draw did not affect the likelihood of obtaining a result (Obstet Gynecol. 2015 Jun;125[6]:1321-29).

When neither CVS nor cell-free DNA analysis is feasible, analysis of either spontaneously passed tissue or tissue obtained at the time of a D&C may still be worthwhile. Maternal cell contamination, of course, is the main downside.

A paper published in 2020 documented the value of refocusing the initial workup. Researchers reported that 57% of 1,400 cases of recurrent pregnancy loss went unexplained using the 2012 ASRM guidelines, which included parental karyotyping but not POC cytogenetic analysis. When parental karyotypes were omitted from the initial workup and POC analysis with 24-chromosome microarray was added, at least one potential explanation for loss could be identified in 92% of cases. Only 8% were left “unexplained” (Curr Opin Obstet Gynecol. 2020 Oct;32[5]:371-9).
 

 

 

When genetics are ruled out

Issues that are top of mind when we lack genetic information or when genetic causes are ruled out include maternal metabolic disorders (uncontrolled diabetes, obesity, uncontrolled thyroid disease), environmental exposures (smoking), uterine abnormalities, and antiphospholipid syndrome.

Thorough evaluation of the uterine cavity after recurrent first trimester miscarriage – or after any second trimester loss – is too often a missing element of investigation. It is a vital component of the evaluation, and information about uterine structure is easily obtained.

A saline infusion sonogram (SIS) allows us to look at the external contour of the uterus, assess the myometrium for muscular abnormalities, visualize the uterine lining, and assess uterine orientation. Performed in the nonpregnant state, and ideally coupled with 3D technology, this relatively simple test can identify congenital uterine anomalies, intracavitary abnormalities (such as fibroids, polyps, or synechiae) which can surgically be removed prior to another pregnancy, a retroverted uterus that may be predisposed to incarceration during pregnancy, and other potentially impactful conditions, such as adenomyosis.
 

Structural anomalies

Congenital uterine anomalies are associated with first trimester miscarriage, second trimester pregnancy loss, and preterm birth. A uterine septum is of particular concern for early miscarriage, as the early embryo can implant on the relatively avascular septum.

Other congenital uterine anomalies (bicornuate, didelphys, unicornuate) can be associated with concomitant cervical structural abnormalities leading to cervical insufficiency and/or result in pathologic uterine stretch of a space-limited cavity, leading to midtrimester loss or preterm birth. The diagnosis of these anomalies is an important part of the evaluation of pregnancy loss, as it can guide monitoring in future pregnancies, or can be surgically corrected, as in the case of a uterine septum, significantly improving pregnancy outcomes.

A short cervix can result either congenitally or from injury or trauma and may also be associated with cervical insufficiency and miscarriage. It can be evaluated and monitored by ultrasound and, in some cases, treated by surgical cerclage. Pregnancy losses due to cervical insufficiency usually occur after 16 weeks of gestation and frequently are associated with intra-amniotic infections.
 

Incarcerated uterus and adenomyosis

Other uterine factors that can contribute to pregnancy loss and that are largely underdiagnosed or undiagnosed are an incarcerated retroverted uterus and adenomyosis.

Martin R. Chavez, MD. NYU Long Island School of Medicine
(Left image) Incarcerated retroverted uterus at 14 weeks gestation. Note the anteriorly displaced and compressed cervix and cervical canal (dotted yellow line) and the fundus wedged posteriorly (white arrow). The first impression is that the placenta is posterior (blue arrow) and the fetus is cephalic. (Right image) The same pregnancy after correction of the incarcerated uterus. Note the placenta is actually anterior (blue arrow) and the fetus is breech.

Most of the time, a retroverted uterus naturally assumes an anteverted position by the late first trimester or early second trimester, allowing for continued growth of the uterus and developing fetus. In approximately 10% of cases, however, the retroverted uterus becomes “stuck” or incarcerated in the posterior pelvis. This is more likely if there are large uterine fibroids or in the presence of pelvic adhesions due to endometriosis or previous pelvic surgery.

When this occurs, the fundus is wedged on the sacral promontory (may cause pelvic discomfort and constipation) and the cervix is markedly displaced anteriorly under the pubic symphysis (causing bladder outlet obstruction and urinary retention).

It is critical that ob.gyns. and emergency medicine providers are aware of this condition, which typically presents between 12 and 16 weeks’ gestation. The most frequent complaint is lower abdominal discomfort due to distended bladder and inability to void, which usually leads to bladder catheterization with drainage of large amounts of urine. An incarcerated uterus can predispose to pregnancy loss during this time (few other conditions cause loss during this time window), presumably due to impaired uterine artery blood flow.

Once the diagnosis is made, uterine incarceration may be corrected by elevating the gravid uterus out of the pelvis either manually, or by using a transvaginal ultrasound probe. (The latter minimally invasive approach was described in March at the American Institute of Ultrasound in Medicine’s annual conference by Martin Chavez, MD, and coinvestigators. More invasive approaches are rarely required but include CO2 intraperitoneal insufflation, as used prior to laparoscopy, or laparotomy.

The later in gestation the condition is allowed to persist, the less likely correction will be possible due to the enlarging fundus. Correction between 14 and 16 weeks, or earlier if symptoms develop, is recommended.

Martin R. Chavez, MD. NYU Long Island School of Medicine
Retroverted uterus demonstrating marked asymmetry of anterior (A) and posterior (P) uterine walls, in addition to heterogeneous uterine architecture, consistent with adenomyosis.


Adenomyosis, another poorly understood condition impacting pregnancy outcomes, has been associated with increased rates of miscarriage after in vitro fertilization (in addition to lower implantation rates); a meta-analysis published almost a decade ago found a risk ratio of miscarriage of 2.12 (95% confidence interval, 1.2-3.75) in women with adenomyosis versus those without (Hum Reprod. 2014 May;29[5]:964-77). However, outside of reproductive endocrinology, its impact on pregnancy outcomes in the obstetrical literature is not well recognized.

Although more research is necessary, we believe that adenomyosis should be considered a risk factor for pregnancy loss in the second trimester. The presence of endometrial glands within the myometrium, predisposing for an inflammatory environment, can lead to abnormal implantation, poor uterine distensibility, sterile inflammation, and early cervical insufficiency. As the prevalence of adenomyosis increases with age and maternal ages are increasing, this is an important condition to consider.

Diagnosis is typically made with MRI (although pathology of a hysterectomy specimen is the gold standard). Ultrasound findings consistent with adenomyosis are not routinely assessed and have not been studied in a gravid uterus. Nonetheless, a heightened sense of awareness about this possible contributor to pregnancy loss is very important.
 
 

 

A word about antiphospholipid syndrome

Antiphospholipid syndrome can cause a variety of adverse pregnancy outcomes, including first and second trimester pregnancy loss, fetal demise, fetal growth restriction, preeclampsia, preterm birth, and maternal thromboembolism. The classical presentation of miscarriage due to untreated antiphospholipid antibody syndrome is early severe fetal growth restriction, oligohydramnios, and IUFD in the second trimester.

The diagnosis requires at least one clinical criterion and one laboratory criterion. The mere presence of low level antibodies does not make the diagnosis of antiphospholipid antibody syndrome, and care should be taken to consider both the clinical and laboratory diagnostic criteria to make an accurate diagnosis.

When present, close maternal and fetal surveillance and a combination of low-dose aspirin and heparin are mainstays of treatment. The majority of studies suggest that low-molecular weight heparin (LMWH) and unfractionated heparin have comparable clinical efficacy. However, if a recurrent loss is experienced despite treatment with LMWH, the use of unfractionated heparin in a subsequent pregnancy should be considered.

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