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COVID-19 effect: Prescription fills mostly down for leading drugs
Prescription fills for hydroxychloroquine/chloroquine spiked right after COVID-19 was declared a national emergency in March, but use of the drugs still remains well above 2019 levels, based on data from more than 58,000 U.S. pharmacies.
Hydroxychloroquine/chloroquine are also doing better than any of the prescription drugs in the top 10 based on total claims in 2019, Muthiah Vaduganathan, MD, MPH, of Brigham and Women’s Hospital, Boston, and associates reported May 28 in a research letter in JAMA.
Prescription fills for hydroxychloroquine/chloroquine have been above 2019 levels every week since the national emergency was declared on March 13, with the high occurring during the week of March 15-21, when fills were 214% higher than the corresponding week in 2019. The lowest level in that time came during the week of April 12-18, with growth of 14.6% over 2019, the investigators said.
The drugs occupying the top 10 – amlodipine, amoxicillin, atorvastatin, gabapentin, hydrocodone-acetaminophen, levothyroxine, lisinopril, losartan, omeprazole, and sertraline – have not done as well. Losartan, the only one that hasn’t lost ground in any week since March 13, rose by almost 49% during March 15-21, but was down to a 1.7% rise by the end of the study period, they reported.
Meanwhile, the other drug touted as a treatment for COVID-19, azithromycin, has fallen farther than most of the top 10. By April 19-25, the last week of the study period, fills for the antibiotic were down 62.7%, compared with last year, the analysis showed. Only amoxicillin had dropped more (64.4%).
“The modest decline for most common long-term therapies after peak could represent reduced contact with prescribing clinicians, restricted access to pharmacies, pharmacist rationing, loss of insurance from unemployment, or replete supplies from early stockpiling,” Dr. Vaduganathan and associates wrote.
The investigators “used all-payer U.S. pharmacy data from 58,332 chain, independent, and mail-order pharmacies across 14,421 zip codes in 50 states, reflecting approximately 17 million deidentified claims,” to estimate national prescription fills, they explained.
SOURCE: Vaduganathan M et al. JAMA 2020 May 28. doi: 10.1001/jama.2020.9184.
Prescription fills for hydroxychloroquine/chloroquine spiked right after COVID-19 was declared a national emergency in March, but use of the drugs still remains well above 2019 levels, based on data from more than 58,000 U.S. pharmacies.
Hydroxychloroquine/chloroquine are also doing better than any of the prescription drugs in the top 10 based on total claims in 2019, Muthiah Vaduganathan, MD, MPH, of Brigham and Women’s Hospital, Boston, and associates reported May 28 in a research letter in JAMA.
Prescription fills for hydroxychloroquine/chloroquine have been above 2019 levels every week since the national emergency was declared on March 13, with the high occurring during the week of March 15-21, when fills were 214% higher than the corresponding week in 2019. The lowest level in that time came during the week of April 12-18, with growth of 14.6% over 2019, the investigators said.
The drugs occupying the top 10 – amlodipine, amoxicillin, atorvastatin, gabapentin, hydrocodone-acetaminophen, levothyroxine, lisinopril, losartan, omeprazole, and sertraline – have not done as well. Losartan, the only one that hasn’t lost ground in any week since March 13, rose by almost 49% during March 15-21, but was down to a 1.7% rise by the end of the study period, they reported.
Meanwhile, the other drug touted as a treatment for COVID-19, azithromycin, has fallen farther than most of the top 10. By April 19-25, the last week of the study period, fills for the antibiotic were down 62.7%, compared with last year, the analysis showed. Only amoxicillin had dropped more (64.4%).
“The modest decline for most common long-term therapies after peak could represent reduced contact with prescribing clinicians, restricted access to pharmacies, pharmacist rationing, loss of insurance from unemployment, or replete supplies from early stockpiling,” Dr. Vaduganathan and associates wrote.
The investigators “used all-payer U.S. pharmacy data from 58,332 chain, independent, and mail-order pharmacies across 14,421 zip codes in 50 states, reflecting approximately 17 million deidentified claims,” to estimate national prescription fills, they explained.
SOURCE: Vaduganathan M et al. JAMA 2020 May 28. doi: 10.1001/jama.2020.9184.
Prescription fills for hydroxychloroquine/chloroquine spiked right after COVID-19 was declared a national emergency in March, but use of the drugs still remains well above 2019 levels, based on data from more than 58,000 U.S. pharmacies.
Hydroxychloroquine/chloroquine are also doing better than any of the prescription drugs in the top 10 based on total claims in 2019, Muthiah Vaduganathan, MD, MPH, of Brigham and Women’s Hospital, Boston, and associates reported May 28 in a research letter in JAMA.
Prescription fills for hydroxychloroquine/chloroquine have been above 2019 levels every week since the national emergency was declared on March 13, with the high occurring during the week of March 15-21, when fills were 214% higher than the corresponding week in 2019. The lowest level in that time came during the week of April 12-18, with growth of 14.6% over 2019, the investigators said.
The drugs occupying the top 10 – amlodipine, amoxicillin, atorvastatin, gabapentin, hydrocodone-acetaminophen, levothyroxine, lisinopril, losartan, omeprazole, and sertraline – have not done as well. Losartan, the only one that hasn’t lost ground in any week since March 13, rose by almost 49% during March 15-21, but was down to a 1.7% rise by the end of the study period, they reported.
Meanwhile, the other drug touted as a treatment for COVID-19, azithromycin, has fallen farther than most of the top 10. By April 19-25, the last week of the study period, fills for the antibiotic were down 62.7%, compared with last year, the analysis showed. Only amoxicillin had dropped more (64.4%).
“The modest decline for most common long-term therapies after peak could represent reduced contact with prescribing clinicians, restricted access to pharmacies, pharmacist rationing, loss of insurance from unemployment, or replete supplies from early stockpiling,” Dr. Vaduganathan and associates wrote.
The investigators “used all-payer U.S. pharmacy data from 58,332 chain, independent, and mail-order pharmacies across 14,421 zip codes in 50 states, reflecting approximately 17 million deidentified claims,” to estimate national prescription fills, they explained.
SOURCE: Vaduganathan M et al. JAMA 2020 May 28. doi: 10.1001/jama.2020.9184.
FROM JAMA
APA, others lobby to make COVID-19 telehealth waivers permanent
The American Psychiatric Association (APA) is calling on Congress to permanently lift restrictions that have allowed unfettered delivery of telehealth services during the COVID-19 pandemic, which experts say has been a boon to patients and physicians alike.
“We ask Congress to extend the telehealth waiver authority under COVID-19 beyond the emergency and to study its impact while doing so,” said APA President Jeffrey Geller, MD, in a May 27 video briefing with congressional staff and reporters.
The APA is also seeking to make permanent certain waivers granted by the Centers for Medicare & Medicaid Services on April 30, including elimination of geographic restrictions on behavioral health and allowing patients be seen at home, said Dr. Geller.
The APA also is asking for the elimination of the rule that requires clinicians to have an initial face-to-face meeting with patients before they can prescribe controlled substances, Dr. Geller said. The Drug Enforcement Administration waived that requirement, known as the Ryan Haight Act, on March 17 for the duration of the national emergency.
Telemedicine has supporters on both sides of the aisle in Congress, including Rep. Paul Tonko (D-N.Y.) who said at the APA briefing he would fight to make the waivers permanent.
“The expanded use of telehealth has enormous potential during normal times as well, especially in behavioral health,” said Mr. Tonko. “I am pushing fiercely for these current flexibilities to be extended for a reasonable time after the public health emergency so that we can have time to evaluate which should be made permanent,” he said.
Dr. Geller, other clinicians, and advocates in the briefing praised CMS for facilitating telepsychiatry for Medicare. That follows in the footsteps of most private insurers, who have also relaxed requirements into the summer, according to the Medical Group Management Association.
Game changer
The Medicare waivers “have dramatically changed the entire scene for someone like myself as a clinician to allow me to see my patients in a much easier way,” said Peter Yellowlees, MBBS, MD, chief wellness officer, University of California Davis Health. Within 2 weeks in March, the health system converted almost all of its regular outpatient visits to telemedicine, he said.
Dr. Yellowlees added government still needs to address, what he called, outdated HIPAA regulations that ban certain technologies.
“It makes no sense that I can talk to someone on an iPhone, but the moment I talk to them on FaceTime, it’s illegal,” said Dr. Yellowlees, a former president of the American Telemedicine Association.
Dr. Geller said that “psychiatric care provided by telehealth is as effective as in-person psychiatric services,” adding that “some patients prefer telepsychiatry because of its convenience and as a means of reducing stigma associated with seeking help for mental health.”
Shabana Khan, MD, a child psychiatrist and director of telepsychiatry at New York University Langone Health, said audio and video conferencing are helping address a shortage and maldistribution of child and adolescent psychiatrists.
Americans’ mental health is suffering during the pandemic. The U.S. Census Bureau recently released data showing that half of those surveyed reported depressed mood and that one-third are reporting anxiety, depression, or both, as reported by the Washington Post.
“At this very time that anxiety, depression, substance use, and other mental health problems are rising, our nation’s already strained mental health system is really being pushed to the brink,” said Jodi Kwarciany, manager for mental health policy for the National Alliance on Mental Illness, during the briefing.
Telemedicine can help “by connecting people to providers at the time and the place and using the technology that works best for them,” she said, adding that NAMI would press policymakers to address barriers to access.
The clinicians on the briefing said they’ve observed that some patients are more comfortable with video or audio interactions than with in-person visits.
Increased access to care
Telepsychiatry seems to be convincing some to reconsider therapy, since they can do it at home, said Dr. Yellowlees. he said.
For instance, he said, he has been able to consult by phone and video with several patients who receive care through the Indian Health Service who had not be able to get into the physical clinic.
Dr. Yellowlees said video sessions also may encourage patients to be more, not less, talkative. “Video is actually counterintuitively a very intimate experience,” he said, in part because of the perceived distance and people’s tendency to be less inhibited on technology platforms.“It’s less embarrassing,” he said. “If you’ve got really dramatic, difficult, traumatic things to talk about, it’s slightly easier to talk to someone who’s slightly further apart from you on video,” said Dr. Yellowlees.
“Individuals who have a significant amount of anxiety may actually feel more comfortable with the distance that this technology affords,” agreed Dr. Khan. She said telemedicine had made sessions more comfortable for some of her patients with autism spectrum disorder.
Dr. Geller said audio and video have been important to his practice during the pandemic. One of his patients never leaves the house and does not use computers. “He spends his time sequestered at home listening to records on his record player,” said Dr. Geller. But he’s been amenable to phone sessions. “What I’ve found with him, and I’ve found with several other patients, is that they actually talk more easily when they’re not face to face,” he said.
Far fewer no-shows
Another plus for his New England–based practice during the last few months: patients have not been anxious about missing sessions because of the weather. The clinicians all noted that telepsychiatry seemed to reduce missed visits.
Dr. Yellowlees said that no-show rates had decreased by half at UC Davis. “That means no significant loss of income,” during the pandemic, he said.
“The no-show rate is incredibly low, particularly because when you call the patients and they don’t remember they had an appointment, you have the appointment anyway, most of the time,” said Dr. Geller.
For Dr. Khan, being able to conduct audio and video sessions during the pandemic has meant keeping up continuity of care.
As a result of the pandemic, many college students in New York City had to go home – often to another state. The waivers granted by New York’s Medicaid program and other insurers have allowed Dr. Khan to continue care for these patients.
The NYU clinic also operates day programs in rural areas 5 hours from the city. Dr. Khan recently evaluated a 12-year-old girl with significant anxiety and low mood, both of which had worsened.
“She would not have been able to access care otherwise,” said Dr. Khan. And for rural patients who do not have access to broadband or smartphones, audio visits “have been immensely helpful,” she said.
Dr. Khan, Dr. Geller, and Dr. Yellowlees have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The American Psychiatric Association (APA) is calling on Congress to permanently lift restrictions that have allowed unfettered delivery of telehealth services during the COVID-19 pandemic, which experts say has been a boon to patients and physicians alike.
“We ask Congress to extend the telehealth waiver authority under COVID-19 beyond the emergency and to study its impact while doing so,” said APA President Jeffrey Geller, MD, in a May 27 video briefing with congressional staff and reporters.
The APA is also seeking to make permanent certain waivers granted by the Centers for Medicare & Medicaid Services on April 30, including elimination of geographic restrictions on behavioral health and allowing patients be seen at home, said Dr. Geller.
The APA also is asking for the elimination of the rule that requires clinicians to have an initial face-to-face meeting with patients before they can prescribe controlled substances, Dr. Geller said. The Drug Enforcement Administration waived that requirement, known as the Ryan Haight Act, on March 17 for the duration of the national emergency.
Telemedicine has supporters on both sides of the aisle in Congress, including Rep. Paul Tonko (D-N.Y.) who said at the APA briefing he would fight to make the waivers permanent.
“The expanded use of telehealth has enormous potential during normal times as well, especially in behavioral health,” said Mr. Tonko. “I am pushing fiercely for these current flexibilities to be extended for a reasonable time after the public health emergency so that we can have time to evaluate which should be made permanent,” he said.
Dr. Geller, other clinicians, and advocates in the briefing praised CMS for facilitating telepsychiatry for Medicare. That follows in the footsteps of most private insurers, who have also relaxed requirements into the summer, according to the Medical Group Management Association.
Game changer
The Medicare waivers “have dramatically changed the entire scene for someone like myself as a clinician to allow me to see my patients in a much easier way,” said Peter Yellowlees, MBBS, MD, chief wellness officer, University of California Davis Health. Within 2 weeks in March, the health system converted almost all of its regular outpatient visits to telemedicine, he said.
Dr. Yellowlees added government still needs to address, what he called, outdated HIPAA regulations that ban certain technologies.
“It makes no sense that I can talk to someone on an iPhone, but the moment I talk to them on FaceTime, it’s illegal,” said Dr. Yellowlees, a former president of the American Telemedicine Association.
Dr. Geller said that “psychiatric care provided by telehealth is as effective as in-person psychiatric services,” adding that “some patients prefer telepsychiatry because of its convenience and as a means of reducing stigma associated with seeking help for mental health.”
Shabana Khan, MD, a child psychiatrist and director of telepsychiatry at New York University Langone Health, said audio and video conferencing are helping address a shortage and maldistribution of child and adolescent psychiatrists.
Americans’ mental health is suffering during the pandemic. The U.S. Census Bureau recently released data showing that half of those surveyed reported depressed mood and that one-third are reporting anxiety, depression, or both, as reported by the Washington Post.
“At this very time that anxiety, depression, substance use, and other mental health problems are rising, our nation’s already strained mental health system is really being pushed to the brink,” said Jodi Kwarciany, manager for mental health policy for the National Alliance on Mental Illness, during the briefing.
Telemedicine can help “by connecting people to providers at the time and the place and using the technology that works best for them,” she said, adding that NAMI would press policymakers to address barriers to access.
The clinicians on the briefing said they’ve observed that some patients are more comfortable with video or audio interactions than with in-person visits.
Increased access to care
Telepsychiatry seems to be convincing some to reconsider therapy, since they can do it at home, said Dr. Yellowlees. he said.
For instance, he said, he has been able to consult by phone and video with several patients who receive care through the Indian Health Service who had not be able to get into the physical clinic.
Dr. Yellowlees said video sessions also may encourage patients to be more, not less, talkative. “Video is actually counterintuitively a very intimate experience,” he said, in part because of the perceived distance and people’s tendency to be less inhibited on technology platforms.“It’s less embarrassing,” he said. “If you’ve got really dramatic, difficult, traumatic things to talk about, it’s slightly easier to talk to someone who’s slightly further apart from you on video,” said Dr. Yellowlees.
“Individuals who have a significant amount of anxiety may actually feel more comfortable with the distance that this technology affords,” agreed Dr. Khan. She said telemedicine had made sessions more comfortable for some of her patients with autism spectrum disorder.
Dr. Geller said audio and video have been important to his practice during the pandemic. One of his patients never leaves the house and does not use computers. “He spends his time sequestered at home listening to records on his record player,” said Dr. Geller. But he’s been amenable to phone sessions. “What I’ve found with him, and I’ve found with several other patients, is that they actually talk more easily when they’re not face to face,” he said.
Far fewer no-shows
Another plus for his New England–based practice during the last few months: patients have not been anxious about missing sessions because of the weather. The clinicians all noted that telepsychiatry seemed to reduce missed visits.
Dr. Yellowlees said that no-show rates had decreased by half at UC Davis. “That means no significant loss of income,” during the pandemic, he said.
“The no-show rate is incredibly low, particularly because when you call the patients and they don’t remember they had an appointment, you have the appointment anyway, most of the time,” said Dr. Geller.
For Dr. Khan, being able to conduct audio and video sessions during the pandemic has meant keeping up continuity of care.
As a result of the pandemic, many college students in New York City had to go home – often to another state. The waivers granted by New York’s Medicaid program and other insurers have allowed Dr. Khan to continue care for these patients.
The NYU clinic also operates day programs in rural areas 5 hours from the city. Dr. Khan recently evaluated a 12-year-old girl with significant anxiety and low mood, both of which had worsened.
“She would not have been able to access care otherwise,” said Dr. Khan. And for rural patients who do not have access to broadband or smartphones, audio visits “have been immensely helpful,” she said.
Dr. Khan, Dr. Geller, and Dr. Yellowlees have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The American Psychiatric Association (APA) is calling on Congress to permanently lift restrictions that have allowed unfettered delivery of telehealth services during the COVID-19 pandemic, which experts say has been a boon to patients and physicians alike.
“We ask Congress to extend the telehealth waiver authority under COVID-19 beyond the emergency and to study its impact while doing so,” said APA President Jeffrey Geller, MD, in a May 27 video briefing with congressional staff and reporters.
The APA is also seeking to make permanent certain waivers granted by the Centers for Medicare & Medicaid Services on April 30, including elimination of geographic restrictions on behavioral health and allowing patients be seen at home, said Dr. Geller.
The APA also is asking for the elimination of the rule that requires clinicians to have an initial face-to-face meeting with patients before they can prescribe controlled substances, Dr. Geller said. The Drug Enforcement Administration waived that requirement, known as the Ryan Haight Act, on March 17 for the duration of the national emergency.
Telemedicine has supporters on both sides of the aisle in Congress, including Rep. Paul Tonko (D-N.Y.) who said at the APA briefing he would fight to make the waivers permanent.
“The expanded use of telehealth has enormous potential during normal times as well, especially in behavioral health,” said Mr. Tonko. “I am pushing fiercely for these current flexibilities to be extended for a reasonable time after the public health emergency so that we can have time to evaluate which should be made permanent,” he said.
Dr. Geller, other clinicians, and advocates in the briefing praised CMS for facilitating telepsychiatry for Medicare. That follows in the footsteps of most private insurers, who have also relaxed requirements into the summer, according to the Medical Group Management Association.
Game changer
The Medicare waivers “have dramatically changed the entire scene for someone like myself as a clinician to allow me to see my patients in a much easier way,” said Peter Yellowlees, MBBS, MD, chief wellness officer, University of California Davis Health. Within 2 weeks in March, the health system converted almost all of its regular outpatient visits to telemedicine, he said.
Dr. Yellowlees added government still needs to address, what he called, outdated HIPAA regulations that ban certain technologies.
“It makes no sense that I can talk to someone on an iPhone, but the moment I talk to them on FaceTime, it’s illegal,” said Dr. Yellowlees, a former president of the American Telemedicine Association.
Dr. Geller said that “psychiatric care provided by telehealth is as effective as in-person psychiatric services,” adding that “some patients prefer telepsychiatry because of its convenience and as a means of reducing stigma associated with seeking help for mental health.”
Shabana Khan, MD, a child psychiatrist and director of telepsychiatry at New York University Langone Health, said audio and video conferencing are helping address a shortage and maldistribution of child and adolescent psychiatrists.
Americans’ mental health is suffering during the pandemic. The U.S. Census Bureau recently released data showing that half of those surveyed reported depressed mood and that one-third are reporting anxiety, depression, or both, as reported by the Washington Post.
“At this very time that anxiety, depression, substance use, and other mental health problems are rising, our nation’s already strained mental health system is really being pushed to the brink,” said Jodi Kwarciany, manager for mental health policy for the National Alliance on Mental Illness, during the briefing.
Telemedicine can help “by connecting people to providers at the time and the place and using the technology that works best for them,” she said, adding that NAMI would press policymakers to address barriers to access.
The clinicians on the briefing said they’ve observed that some patients are more comfortable with video or audio interactions than with in-person visits.
Increased access to care
Telepsychiatry seems to be convincing some to reconsider therapy, since they can do it at home, said Dr. Yellowlees. he said.
For instance, he said, he has been able to consult by phone and video with several patients who receive care through the Indian Health Service who had not be able to get into the physical clinic.
Dr. Yellowlees said video sessions also may encourage patients to be more, not less, talkative. “Video is actually counterintuitively a very intimate experience,” he said, in part because of the perceived distance and people’s tendency to be less inhibited on technology platforms.“It’s less embarrassing,” he said. “If you’ve got really dramatic, difficult, traumatic things to talk about, it’s slightly easier to talk to someone who’s slightly further apart from you on video,” said Dr. Yellowlees.
“Individuals who have a significant amount of anxiety may actually feel more comfortable with the distance that this technology affords,” agreed Dr. Khan. She said telemedicine had made sessions more comfortable for some of her patients with autism spectrum disorder.
Dr. Geller said audio and video have been important to his practice during the pandemic. One of his patients never leaves the house and does not use computers. “He spends his time sequestered at home listening to records on his record player,” said Dr. Geller. But he’s been amenable to phone sessions. “What I’ve found with him, and I’ve found with several other patients, is that they actually talk more easily when they’re not face to face,” he said.
Far fewer no-shows
Another plus for his New England–based practice during the last few months: patients have not been anxious about missing sessions because of the weather. The clinicians all noted that telepsychiatry seemed to reduce missed visits.
Dr. Yellowlees said that no-show rates had decreased by half at UC Davis. “That means no significant loss of income,” during the pandemic, he said.
“The no-show rate is incredibly low, particularly because when you call the patients and they don’t remember they had an appointment, you have the appointment anyway, most of the time,” said Dr. Geller.
For Dr. Khan, being able to conduct audio and video sessions during the pandemic has meant keeping up continuity of care.
As a result of the pandemic, many college students in New York City had to go home – often to another state. The waivers granted by New York’s Medicaid program and other insurers have allowed Dr. Khan to continue care for these patients.
The NYU clinic also operates day programs in rural areas 5 hours from the city. Dr. Khan recently evaluated a 12-year-old girl with significant anxiety and low mood, both of which had worsened.
“She would not have been able to access care otherwise,” said Dr. Khan. And for rural patients who do not have access to broadband or smartphones, audio visits “have been immensely helpful,” she said.
Dr. Khan, Dr. Geller, and Dr. Yellowlees have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
COVID-19 may increase risk of preterm birth and cesarean delivery
Among 57 hospitalized patients with SARS-CoV-2 infection who underwent vaginal or cesarean delivery, 7 had spontaneous preterm or respiratory-indicated preterm delivery, a rate of 12%, according to a study published in Obstetrics & Gynecology. For comparison, 7% of patients had preterm delivery in 2019, researchers reported “We also noted a high cesarean delivery rate in the study population (39% vs. 27% in the same area in 2019), mainly as a result of maternal respiratory-indicated urgent delivery,” wrote Valeria M. Savasi, MD, PhD, of the University of Milan and Luigi Sacco Hospital, also in Milan, and colleagues.
Data do not indicate that pregnant women are more susceptible to severe COVID-19 infection, nor have studies suggested an increased risk of miscarriage, congenital anomalies, or early pregnancy loss in pregnant patients with COVID-19, the authors wrote. Studies have described an increased risk of preterm birth, however.
To study clinical features of maternal SARS-CoV-2 infection and potential factors associated with severe disease and iatrogenic delivery, Dr. Savasi and colleagues conducted a prospective study of 77 women with laboratory-confirmed SARS-CoV-2 infection who were admitted during pregnancy or the immediate postpartum period in 12 maternity hospitals in northern Italy between Feb. 23 and March 28, 2020.
The investigators classified patients as having severe disease if they underwent urgent delivery based on maternal respiratory function or if they were admitted to an ICU or subintensive care department. In all, 14 patients (18%) were classified as having severe disease.
“Three patients were intubated after emergency cesarean delivery performed for maternal deterioration, and one patient underwent extracorporeal membrane oxygenation,” Dr. Savasi and colleagues reported. The results are consistent with epidemiologic data in the nonpregnant population with COVID-19 disease.
Of 11 patients with severe disease who underwent urgent delivery for respiratory compromise, 6 had significant postpartum improvement in clinical conditions. No maternal deaths occurred.
“Increased BMI [body mass index] was a significant risk factor for severe disease,” Dr. Savasi and colleagues wrote. “Fever and dyspnea on admission were symptoms significantly associated with subsequent severe maternal respiratory deterioration.”
Most patients (65%) were admitted during the third trimester, and 20 patients were still pregnant at discharge.
“Nine newborns were admitted to the neonatal intensive care unit,” the authors wrote. “Interestingly, besides prematurity, fetal oxygenation and well-being at delivery were not apparently affected by the maternal acute conditions.” Three newborns with vaginal delivery and one with cesarean delivery tested positive for SARS-CoV-2. The newborns may have been infected after delivery, Dr. Savasi and colleagues added. For all newborns, rooming-in and breastfeeding were performed, and none developed respiratory symptoms.
Criteria for hospital admission and therapeutic protocols may have varied between hospitals, the authors noted. In addition, the study included 12 patients who were asymptomatic and admitted for obstetric indications. These patients were tested for SARS-CoV-2 because of contact with an infected individual. Most patients were symptomatic, however, which explains the high rate of maternal severe outcomes. Hospitals have since adopted a universal SARS-CoV-2 screening policy for hospitalized pregnant patients.
Kristina Adams Waldorf, MD, professor of obstetrics and gynecology at the University of Washington, Seattle, commented in an interview that Savasi et al. describe one of the larger COVID-19 in pregnancy cohorts to date with rates of severe disease and delivery for respiratory compromise, which is remarkably similar to Washington state (severe disease, 18% vs. nearly 15%; delivery for respiratory compromise, 16% vs. 20%). As in Washington state, Italian women with a higher prepregnancy BMI were overrepresented in the severe disease group.
“Data are beginning to emerge that identify women who were overweight or obese prior to pregnancy as a high risk group for developing severe COVID-19. These data are similar to known associations between obesity and critical illness in pregnancy during the 2009 ‘swine flu’ (influenza A virus, H1N1) pandemic,” she said.
“This study and others indicate that the late second and third trimesters may be a time when women are more likely to be symptomatic from COVID-19. It remains unclear if women in the first trimester are protected from severe COVID-19 outcomes or have outcomes similar to nonpregnant women,” concluded Dr. Waldorf.
One study author disclosed receiving funds from Lo Li Pharma and Zambongroup. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Savasi VM et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003979.
Among 57 hospitalized patients with SARS-CoV-2 infection who underwent vaginal or cesarean delivery, 7 had spontaneous preterm or respiratory-indicated preterm delivery, a rate of 12%, according to a study published in Obstetrics & Gynecology. For comparison, 7% of patients had preterm delivery in 2019, researchers reported “We also noted a high cesarean delivery rate in the study population (39% vs. 27% in the same area in 2019), mainly as a result of maternal respiratory-indicated urgent delivery,” wrote Valeria M. Savasi, MD, PhD, of the University of Milan and Luigi Sacco Hospital, also in Milan, and colleagues.
Data do not indicate that pregnant women are more susceptible to severe COVID-19 infection, nor have studies suggested an increased risk of miscarriage, congenital anomalies, or early pregnancy loss in pregnant patients with COVID-19, the authors wrote. Studies have described an increased risk of preterm birth, however.
To study clinical features of maternal SARS-CoV-2 infection and potential factors associated with severe disease and iatrogenic delivery, Dr. Savasi and colleagues conducted a prospective study of 77 women with laboratory-confirmed SARS-CoV-2 infection who were admitted during pregnancy or the immediate postpartum period in 12 maternity hospitals in northern Italy between Feb. 23 and March 28, 2020.
The investigators classified patients as having severe disease if they underwent urgent delivery based on maternal respiratory function or if they were admitted to an ICU or subintensive care department. In all, 14 patients (18%) were classified as having severe disease.
“Three patients were intubated after emergency cesarean delivery performed for maternal deterioration, and one patient underwent extracorporeal membrane oxygenation,” Dr. Savasi and colleagues reported. The results are consistent with epidemiologic data in the nonpregnant population with COVID-19 disease.
Of 11 patients with severe disease who underwent urgent delivery for respiratory compromise, 6 had significant postpartum improvement in clinical conditions. No maternal deaths occurred.
“Increased BMI [body mass index] was a significant risk factor for severe disease,” Dr. Savasi and colleagues wrote. “Fever and dyspnea on admission were symptoms significantly associated with subsequent severe maternal respiratory deterioration.”
Most patients (65%) were admitted during the third trimester, and 20 patients were still pregnant at discharge.
“Nine newborns were admitted to the neonatal intensive care unit,” the authors wrote. “Interestingly, besides prematurity, fetal oxygenation and well-being at delivery were not apparently affected by the maternal acute conditions.” Three newborns with vaginal delivery and one with cesarean delivery tested positive for SARS-CoV-2. The newborns may have been infected after delivery, Dr. Savasi and colleagues added. For all newborns, rooming-in and breastfeeding were performed, and none developed respiratory symptoms.
Criteria for hospital admission and therapeutic protocols may have varied between hospitals, the authors noted. In addition, the study included 12 patients who were asymptomatic and admitted for obstetric indications. These patients were tested for SARS-CoV-2 because of contact with an infected individual. Most patients were symptomatic, however, which explains the high rate of maternal severe outcomes. Hospitals have since adopted a universal SARS-CoV-2 screening policy for hospitalized pregnant patients.
Kristina Adams Waldorf, MD, professor of obstetrics and gynecology at the University of Washington, Seattle, commented in an interview that Savasi et al. describe one of the larger COVID-19 in pregnancy cohorts to date with rates of severe disease and delivery for respiratory compromise, which is remarkably similar to Washington state (severe disease, 18% vs. nearly 15%; delivery for respiratory compromise, 16% vs. 20%). As in Washington state, Italian women with a higher prepregnancy BMI were overrepresented in the severe disease group.
“Data are beginning to emerge that identify women who were overweight or obese prior to pregnancy as a high risk group for developing severe COVID-19. These data are similar to known associations between obesity and critical illness in pregnancy during the 2009 ‘swine flu’ (influenza A virus, H1N1) pandemic,” she said.
“This study and others indicate that the late second and third trimesters may be a time when women are more likely to be symptomatic from COVID-19. It remains unclear if women in the first trimester are protected from severe COVID-19 outcomes or have outcomes similar to nonpregnant women,” concluded Dr. Waldorf.
One study author disclosed receiving funds from Lo Li Pharma and Zambongroup. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Savasi VM et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003979.
Among 57 hospitalized patients with SARS-CoV-2 infection who underwent vaginal or cesarean delivery, 7 had spontaneous preterm or respiratory-indicated preterm delivery, a rate of 12%, according to a study published in Obstetrics & Gynecology. For comparison, 7% of patients had preterm delivery in 2019, researchers reported “We also noted a high cesarean delivery rate in the study population (39% vs. 27% in the same area in 2019), mainly as a result of maternal respiratory-indicated urgent delivery,” wrote Valeria M. Savasi, MD, PhD, of the University of Milan and Luigi Sacco Hospital, also in Milan, and colleagues.
Data do not indicate that pregnant women are more susceptible to severe COVID-19 infection, nor have studies suggested an increased risk of miscarriage, congenital anomalies, or early pregnancy loss in pregnant patients with COVID-19, the authors wrote. Studies have described an increased risk of preterm birth, however.
To study clinical features of maternal SARS-CoV-2 infection and potential factors associated with severe disease and iatrogenic delivery, Dr. Savasi and colleagues conducted a prospective study of 77 women with laboratory-confirmed SARS-CoV-2 infection who were admitted during pregnancy or the immediate postpartum period in 12 maternity hospitals in northern Italy between Feb. 23 and March 28, 2020.
The investigators classified patients as having severe disease if they underwent urgent delivery based on maternal respiratory function or if they were admitted to an ICU or subintensive care department. In all, 14 patients (18%) were classified as having severe disease.
“Three patients were intubated after emergency cesarean delivery performed for maternal deterioration, and one patient underwent extracorporeal membrane oxygenation,” Dr. Savasi and colleagues reported. The results are consistent with epidemiologic data in the nonpregnant population with COVID-19 disease.
Of 11 patients with severe disease who underwent urgent delivery for respiratory compromise, 6 had significant postpartum improvement in clinical conditions. No maternal deaths occurred.
“Increased BMI [body mass index] was a significant risk factor for severe disease,” Dr. Savasi and colleagues wrote. “Fever and dyspnea on admission were symptoms significantly associated with subsequent severe maternal respiratory deterioration.”
Most patients (65%) were admitted during the third trimester, and 20 patients were still pregnant at discharge.
“Nine newborns were admitted to the neonatal intensive care unit,” the authors wrote. “Interestingly, besides prematurity, fetal oxygenation and well-being at delivery were not apparently affected by the maternal acute conditions.” Three newborns with vaginal delivery and one with cesarean delivery tested positive for SARS-CoV-2. The newborns may have been infected after delivery, Dr. Savasi and colleagues added. For all newborns, rooming-in and breastfeeding were performed, and none developed respiratory symptoms.
Criteria for hospital admission and therapeutic protocols may have varied between hospitals, the authors noted. In addition, the study included 12 patients who were asymptomatic and admitted for obstetric indications. These patients were tested for SARS-CoV-2 because of contact with an infected individual. Most patients were symptomatic, however, which explains the high rate of maternal severe outcomes. Hospitals have since adopted a universal SARS-CoV-2 screening policy for hospitalized pregnant patients.
Kristina Adams Waldorf, MD, professor of obstetrics and gynecology at the University of Washington, Seattle, commented in an interview that Savasi et al. describe one of the larger COVID-19 in pregnancy cohorts to date with rates of severe disease and delivery for respiratory compromise, which is remarkably similar to Washington state (severe disease, 18% vs. nearly 15%; delivery for respiratory compromise, 16% vs. 20%). As in Washington state, Italian women with a higher prepregnancy BMI were overrepresented in the severe disease group.
“Data are beginning to emerge that identify women who were overweight or obese prior to pregnancy as a high risk group for developing severe COVID-19. These data are similar to known associations between obesity and critical illness in pregnancy during the 2009 ‘swine flu’ (influenza A virus, H1N1) pandemic,” she said.
“This study and others indicate that the late second and third trimesters may be a time when women are more likely to be symptomatic from COVID-19. It remains unclear if women in the first trimester are protected from severe COVID-19 outcomes or have outcomes similar to nonpregnant women,” concluded Dr. Waldorf.
One study author disclosed receiving funds from Lo Li Pharma and Zambongroup. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Savasi VM et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003979.
FROM OBSTETRICS & GYNECOLOGY
Testing the limits of medical technology
On March 9 my team was given a directive by the chief medical officer of our health system. It seemed like an impossible task, involving the mobilization of people, processes, and technology at a scale and speed we had never before achieved. It turned out getting this done was impossible. In spite of our best efforts, we failed to meet the deadline – it actually took us 3 days. Still, by March 12, we had opened the doors on the first community testing site in our area and gained the attention of local and national news outlets for our accomplishment.
Now more than 2 months later, I’m quite proud of what our team was able to achieve for the health system, but I’m still quite frustrated at the state of COVID-19 testing nationwide – there’s simply not enough available, and there is tremendous variability in the reliability of the tests. In this column, we’d like to highlight some of the challenges we’ve faced and reflect on how the shortcomings of modern technology have once again proven that medicine is both a science and an art.
Our dangerous lack of preparation
Prior to the coronavirus pandemic, I had never considered surgical masks, face shields, and nasal swabs to be critical components of medical technology. My opinion quickly changed after opening our drive-through COVID-19 site. I now have a much greater appreciation for the importance of personal protective equipment and basic testing supplies.
I was shocked by how difficult obtaining it has been during the past few months. It seems that no one anticipated the possibility of a pandemic on this grand a scale, so stockpiles of equipment were depleted quickly and couldn’t be replenished. Also, most manufacturing occurs outside the United States, which creates additional barriers to controlling the supply chain. One need not look far to find stories of widespread price-gouging, black market racketeering, and even hijackings that have stood in the way of accessing the necessary supplies. Sadly, the lack of equipment is far from the only challenge we’ve faced. In some cases, it has been a mistrust of results that has prevented widespread testing and mitigation.
The risks of flying blind
When President Trump touted the introduction of a rapid COVID-19 test at the end of March, many people were excited. Promising positive results in as few as 5 minutes, the assay was granted an Emergency Use Authorization (EUA) by the Food and Drug Administration in order to expedite its availability in the market. According to the FDA’s website, an EUA allows “unapproved medical products or unapproved uses of approved medical products to be used in an emergency to diagnose, treat, or prevent serious or life-threatening diseases or conditions.” This rapid (though untested) approval was all that many health care providers needed to hear – immediately hospitals and physicians scrambled to get their hands on the testing devices. Unfortunately, on May 14th, the FDA issued a press release that raised concerns about that same test because it seemed to be reporting a high number of false-negative results. Just as quickly as the devices had been adopted, health care providers began backing away from them in favor of other assays, and a serious truth about COVID-19 testing was revealed: In many ways, we’re flying blind.
Laboratory manufacturers have been working overtime to create assays for SARS-CoV-2 (the coronavirus that causes COVID-19) and have used different technologies for detection. The most commonly used are polymerase chain reaction (PCR) tests. In these assays, viral RNA is converted to DNA by reverse transcriptase, then amplified through the addition of primers that enable detection. PCR technology has been available for years and is a reliable method for identifying DNA and RNA, but the required heating and cooling process takes time and results can take several hours to return. To address this and expedite testing, other methods of detection have been tried, such as the loop-mediated isothermal amplification (LAMP) technique employed by the rapid assay mentioned above. Regardless of methodology, all laboratory tests have one thing in common: None of them is perfect.
Every assay has a different level of reliability. When screening for a disease such as COVID-19, we are particularly interested in a test’s sensitivity (that is, it’s ability to detect disease); we’d love such a screening test to be 100% sensitive and thereby not miss a single case. In truth, no test’s sensitivity is 100%, and in this particular case even the best assays only score around 98%. This means that out of every 100 patients with COVID-19 who are evaluated, two might test negative for the virus. In a pandemic this can have dire consequences, so health care providers – unable to fully trust their instruments – must employ clinical acumen and years of experience to navigate these cloudy skies. We are hopeful that additional tools will complement our current methods, but with new assays also come new questions.
Is anyone safe?
We receive regular questions from physicians about the value of antibody testing, but it’s not yet clear how best to respond. While the assays seem to be reliable, the utility of the results are still ill defined. Antibodies to SARS-CoV-2 (both IgG and IgM) appear to peak about 2-3 weeks after symptom onset, but we don’t yet know if the presence of those antibodies confers long-term immunity. Therefore, patients should not use the information to change their masking or social-distancing practices, nor should they presume that they are safe from becoming reinfected with COVID-19. While new research looks promising, there are still too many unknowns to be able to confidently reassure providers or patients of the true value of antibody testing. This underscores our final point: Medicine remains an art.
As we are regularly reminded, we’ll never fully anticipate the challenges or barriers to success, and technology will never replace the value of clinical judgment and human experience. While the situation is unsettling in many ways, we are reassured and encouraged by the role we still get to play in keeping our patients healthy in this health care crisis, and we’ll continue to do so through whatever the future holds.
Dr. Notte is a family physician and chief medical officer of Abington Lansdale (Pa.) Hospital - Jefferson Health. Follow him on Twitter (@doctornotte). Dr. Skolnik is professor of family and community medicine at Sidney Kimmel Medical College, Philadelphia, and associate director of the family medicine residency program at Abington (Pa.) Hospital–Jefferson Health. They have no conflicts related to the content of this piece.
On March 9 my team was given a directive by the chief medical officer of our health system. It seemed like an impossible task, involving the mobilization of people, processes, and technology at a scale and speed we had never before achieved. It turned out getting this done was impossible. In spite of our best efforts, we failed to meet the deadline – it actually took us 3 days. Still, by March 12, we had opened the doors on the first community testing site in our area and gained the attention of local and national news outlets for our accomplishment.
Now more than 2 months later, I’m quite proud of what our team was able to achieve for the health system, but I’m still quite frustrated at the state of COVID-19 testing nationwide – there’s simply not enough available, and there is tremendous variability in the reliability of the tests. In this column, we’d like to highlight some of the challenges we’ve faced and reflect on how the shortcomings of modern technology have once again proven that medicine is both a science and an art.
Our dangerous lack of preparation
Prior to the coronavirus pandemic, I had never considered surgical masks, face shields, and nasal swabs to be critical components of medical technology. My opinion quickly changed after opening our drive-through COVID-19 site. I now have a much greater appreciation for the importance of personal protective equipment and basic testing supplies.
I was shocked by how difficult obtaining it has been during the past few months. It seems that no one anticipated the possibility of a pandemic on this grand a scale, so stockpiles of equipment were depleted quickly and couldn’t be replenished. Also, most manufacturing occurs outside the United States, which creates additional barriers to controlling the supply chain. One need not look far to find stories of widespread price-gouging, black market racketeering, and even hijackings that have stood in the way of accessing the necessary supplies. Sadly, the lack of equipment is far from the only challenge we’ve faced. In some cases, it has been a mistrust of results that has prevented widespread testing and mitigation.
The risks of flying blind
When President Trump touted the introduction of a rapid COVID-19 test at the end of March, many people were excited. Promising positive results in as few as 5 minutes, the assay was granted an Emergency Use Authorization (EUA) by the Food and Drug Administration in order to expedite its availability in the market. According to the FDA’s website, an EUA allows “unapproved medical products or unapproved uses of approved medical products to be used in an emergency to diagnose, treat, or prevent serious or life-threatening diseases or conditions.” This rapid (though untested) approval was all that many health care providers needed to hear – immediately hospitals and physicians scrambled to get their hands on the testing devices. Unfortunately, on May 14th, the FDA issued a press release that raised concerns about that same test because it seemed to be reporting a high number of false-negative results. Just as quickly as the devices had been adopted, health care providers began backing away from them in favor of other assays, and a serious truth about COVID-19 testing was revealed: In many ways, we’re flying blind.
Laboratory manufacturers have been working overtime to create assays for SARS-CoV-2 (the coronavirus that causes COVID-19) and have used different technologies for detection. The most commonly used are polymerase chain reaction (PCR) tests. In these assays, viral RNA is converted to DNA by reverse transcriptase, then amplified through the addition of primers that enable detection. PCR technology has been available for years and is a reliable method for identifying DNA and RNA, but the required heating and cooling process takes time and results can take several hours to return. To address this and expedite testing, other methods of detection have been tried, such as the loop-mediated isothermal amplification (LAMP) technique employed by the rapid assay mentioned above. Regardless of methodology, all laboratory tests have one thing in common: None of them is perfect.
Every assay has a different level of reliability. When screening for a disease such as COVID-19, we are particularly interested in a test’s sensitivity (that is, it’s ability to detect disease); we’d love such a screening test to be 100% sensitive and thereby not miss a single case. In truth, no test’s sensitivity is 100%, and in this particular case even the best assays only score around 98%. This means that out of every 100 patients with COVID-19 who are evaluated, two might test negative for the virus. In a pandemic this can have dire consequences, so health care providers – unable to fully trust their instruments – must employ clinical acumen and years of experience to navigate these cloudy skies. We are hopeful that additional tools will complement our current methods, but with new assays also come new questions.
Is anyone safe?
We receive regular questions from physicians about the value of antibody testing, but it’s not yet clear how best to respond. While the assays seem to be reliable, the utility of the results are still ill defined. Antibodies to SARS-CoV-2 (both IgG and IgM) appear to peak about 2-3 weeks after symptom onset, but we don’t yet know if the presence of those antibodies confers long-term immunity. Therefore, patients should not use the information to change their masking or social-distancing practices, nor should they presume that they are safe from becoming reinfected with COVID-19. While new research looks promising, there are still too many unknowns to be able to confidently reassure providers or patients of the true value of antibody testing. This underscores our final point: Medicine remains an art.
As we are regularly reminded, we’ll never fully anticipate the challenges or barriers to success, and technology will never replace the value of clinical judgment and human experience. While the situation is unsettling in many ways, we are reassured and encouraged by the role we still get to play in keeping our patients healthy in this health care crisis, and we’ll continue to do so through whatever the future holds.
Dr. Notte is a family physician and chief medical officer of Abington Lansdale (Pa.) Hospital - Jefferson Health. Follow him on Twitter (@doctornotte). Dr. Skolnik is professor of family and community medicine at Sidney Kimmel Medical College, Philadelphia, and associate director of the family medicine residency program at Abington (Pa.) Hospital–Jefferson Health. They have no conflicts related to the content of this piece.
On March 9 my team was given a directive by the chief medical officer of our health system. It seemed like an impossible task, involving the mobilization of people, processes, and technology at a scale and speed we had never before achieved. It turned out getting this done was impossible. In spite of our best efforts, we failed to meet the deadline – it actually took us 3 days. Still, by March 12, we had opened the doors on the first community testing site in our area and gained the attention of local and national news outlets for our accomplishment.
Now more than 2 months later, I’m quite proud of what our team was able to achieve for the health system, but I’m still quite frustrated at the state of COVID-19 testing nationwide – there’s simply not enough available, and there is tremendous variability in the reliability of the tests. In this column, we’d like to highlight some of the challenges we’ve faced and reflect on how the shortcomings of modern technology have once again proven that medicine is both a science and an art.
Our dangerous lack of preparation
Prior to the coronavirus pandemic, I had never considered surgical masks, face shields, and nasal swabs to be critical components of medical technology. My opinion quickly changed after opening our drive-through COVID-19 site. I now have a much greater appreciation for the importance of personal protective equipment and basic testing supplies.
I was shocked by how difficult obtaining it has been during the past few months. It seems that no one anticipated the possibility of a pandemic on this grand a scale, so stockpiles of equipment were depleted quickly and couldn’t be replenished. Also, most manufacturing occurs outside the United States, which creates additional barriers to controlling the supply chain. One need not look far to find stories of widespread price-gouging, black market racketeering, and even hijackings that have stood in the way of accessing the necessary supplies. Sadly, the lack of equipment is far from the only challenge we’ve faced. In some cases, it has been a mistrust of results that has prevented widespread testing and mitigation.
The risks of flying blind
When President Trump touted the introduction of a rapid COVID-19 test at the end of March, many people were excited. Promising positive results in as few as 5 minutes, the assay was granted an Emergency Use Authorization (EUA) by the Food and Drug Administration in order to expedite its availability in the market. According to the FDA’s website, an EUA allows “unapproved medical products or unapproved uses of approved medical products to be used in an emergency to diagnose, treat, or prevent serious or life-threatening diseases or conditions.” This rapid (though untested) approval was all that many health care providers needed to hear – immediately hospitals and physicians scrambled to get their hands on the testing devices. Unfortunately, on May 14th, the FDA issued a press release that raised concerns about that same test because it seemed to be reporting a high number of false-negative results. Just as quickly as the devices had been adopted, health care providers began backing away from them in favor of other assays, and a serious truth about COVID-19 testing was revealed: In many ways, we’re flying blind.
Laboratory manufacturers have been working overtime to create assays for SARS-CoV-2 (the coronavirus that causes COVID-19) and have used different technologies for detection. The most commonly used are polymerase chain reaction (PCR) tests. In these assays, viral RNA is converted to DNA by reverse transcriptase, then amplified through the addition of primers that enable detection. PCR technology has been available for years and is a reliable method for identifying DNA and RNA, but the required heating and cooling process takes time and results can take several hours to return. To address this and expedite testing, other methods of detection have been tried, such as the loop-mediated isothermal amplification (LAMP) technique employed by the rapid assay mentioned above. Regardless of methodology, all laboratory tests have one thing in common: None of them is perfect.
Every assay has a different level of reliability. When screening for a disease such as COVID-19, we are particularly interested in a test’s sensitivity (that is, it’s ability to detect disease); we’d love such a screening test to be 100% sensitive and thereby not miss a single case. In truth, no test’s sensitivity is 100%, and in this particular case even the best assays only score around 98%. This means that out of every 100 patients with COVID-19 who are evaluated, two might test negative for the virus. In a pandemic this can have dire consequences, so health care providers – unable to fully trust their instruments – must employ clinical acumen and years of experience to navigate these cloudy skies. We are hopeful that additional tools will complement our current methods, but with new assays also come new questions.
Is anyone safe?
We receive regular questions from physicians about the value of antibody testing, but it’s not yet clear how best to respond. While the assays seem to be reliable, the utility of the results are still ill defined. Antibodies to SARS-CoV-2 (both IgG and IgM) appear to peak about 2-3 weeks after symptom onset, but we don’t yet know if the presence of those antibodies confers long-term immunity. Therefore, patients should not use the information to change their masking or social-distancing practices, nor should they presume that they are safe from becoming reinfected with COVID-19. While new research looks promising, there are still too many unknowns to be able to confidently reassure providers or patients of the true value of antibody testing. This underscores our final point: Medicine remains an art.
As we are regularly reminded, we’ll never fully anticipate the challenges or barriers to success, and technology will never replace the value of clinical judgment and human experience. While the situation is unsettling in many ways, we are reassured and encouraged by the role we still get to play in keeping our patients healthy in this health care crisis, and we’ll continue to do so through whatever the future holds.
Dr. Notte is a family physician and chief medical officer of Abington Lansdale (Pa.) Hospital - Jefferson Health. Follow him on Twitter (@doctornotte). Dr. Skolnik is professor of family and community medicine at Sidney Kimmel Medical College, Philadelphia, and associate director of the family medicine residency program at Abington (Pa.) Hospital–Jefferson Health. They have no conflicts related to the content of this piece.
Scientific doubt tempers COVID-19 vaccine optimism
US government and industry projections that a COVID-19 vaccine will be ready by this fall or even January would take compressing what usually takes at least a decade into months, with little room for error or safety surprises.
“If all the cards fall into the right place and all the stars are aligned, you definitely could get a vaccine by December or January,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said last week.
But Fauci said a more realistic timeline is still 12 to 18 months, and experts interviewed by Medscape Medical News agree. They say that although recent developments are encouraging, history and scientific reason say the day when a COVID-19 vaccine is widely available will not come this year and may not come by the end of 2021.
The encouraging signals come primarily from two recent announcements: the $1.2 billion United States backing last week of one vaccine platform and the announcement on May 18 that the first human trials of another have produced some positive phase 1 results.
Recent developments
On May 21, the US Department of Health and Human Services (HHS) under “Operation Warp Speed” announced that the US will give AstraZeneca $1.2 billion “to make available at least 300 million doses of a coronavirus vaccine called AZD1222, with the first doses delivered as early as October 2020.”
On May 18, the Massachusetts-based biotechnology company Moderna announced that phase 1 clinical results showed that its vaccine candidate, which uses a new messenger RNA (mRNA) technology, appeared safe. Eight participants in the human trials were able to produce neutralizing antibodies that researchers believe are important in developing protection from the virus.
Moderna Chief Medical Officer Tal Zaks, MD, PhD told CNN that if the vaccine candidate does well in phase 2, “it could be ready by January 2021.”
The two candidates are among 10 in clinical trials for the SARS-CoV-2 virus, according to the World Health Organization (WHO). The AstraZeneca/ AZD1222 candidate (also called ChAdOx1 nCoV-19, in collaboration with the University of Oxford) has entered phase 2/3.
Moderna’s candidate and another being developed in Beijing, China, are in phase 2, WHO reports. As of yesterday, 115 other candidates are in preclinical evaluation.
Maria Elena Bottazzi, PhD, associate dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, Texas, told Medscape Medical News it’s important to realize that, in the case of the $1.2 billion US investment, “what they’re talking about is manufacturing.”
The idea, she said, is to pay AstraZeneca up front so that manufacturing can start before it is known whether the vaccine candidate is safe or effective, the reverse of how the clinical trial process usually works.
That way, if the candidate is deemed safe and effective, time is not lost by then deciding how to make it and distribute it.
By the end of this year, she said, “Maybe we will have many vaccines made and stored in a refrigerator somewhere. But between now and December, there’s absolutely no way you can show efficacy of the vaccine at the same time you confirm that it’s safe.”
“Take these things with a grain of salt”
Animal testing for the AstraZeneca candidate, made in partnership with the University of Oxford in the United Kingdom, has yielded lackluster results, according to results on the preprint server BioRxiv, which have not been peer-reviewed.
“The results were not bad, but they were not gangbusters,” Bottazzi said. The results show the vaccine offered only partial protection.
“Partial protection is better than no protection,” she noted. “You have to take these things with a grain of salt. We don’t know what’s going to happen in humans.”
As for the Moderna candidate, Bottazzi said, “the good news is they found an appropriate safety profile. But from an eight-person group to make the extrapolation that they have efficacy — it’s unrealistic.”
Nicole Lurie, MD, MSPH, is senior adviser to the CEO for the Coalition for Epidemic Preparedness Innovation (CEPI), a nongovernmental organization funded by the Wellcome Trust, the Bill and Melinda Gates Foundation, the European Commission, and eight countries (Australia, Belgium, Canada, Ethiopia, Germany, Japan, Norway, and the United Kingdom) charged with supporting development of vaccines for pathogens on WHO’s priority list.
She and her colleagues write in a paper published online in the New England Journal of Medicine on March 30 that “it typically takes multiple candidates and many years to produce a licensed vaccine.”
The fastest time for developing a vaccine to date is 4 years, for the mumps vaccine, licensed in 1967.
As to whether she would expect a rollout of any vaccine by the end of the year, Lurie told Medscape Medical News, “If everything goes according to plan in every way, shape or form, well then maybe you can get there. But I wouldn’t hold my breath.”
Lurie and her colleagues write that “it’s far from certain that these new platforms will be scalable or that existing capacity can provide sufficient quantities of vaccine fast enough.”
On a call with reporters today, leaders of some of the words largest pharmaceutical companies said that one of the key bottlenecks is the sheer number of vials needed in order to distribute billions of doses of a successful vaccine.
Pfizer CEO Albert Bourla, DVM, PhD, said, “Typically we are producing vaccines in single-dose vials. We are exploring with governments right now if it would be more convenient if there were 5-dose vials or 10-dose vials. I think we can resolve a significant part of the bottleneck.”
Despite the challenges, experts interviewed for this article agree that it will be possible to make a vaccine for COVID-19. They don’t expect attempts to meet the same complications that HIV researchers have seen over decades as the virus continues to confound with mutations.
Fred Ledley, MD, director of the Center for Integration of Science and Industry at Bentley University in Waltham, Massachusetts, told Medscape Medical News, “There doesn’t appear to be anything terribly diabolical about this virus. The mutation rate doesn’t appear to be anything like HIV. It appears to have some big, ugly proteins on the surface, which is good for vaccines — proteins with a lot of physical features look distinguishable from healthy cells. Signs all point to that it should be possible to make a vaccine.”
History raises safety concerns
However, Ledley said, “The idea of doing it in 6 months is largely unrealistic.”
He says 18 months is more realistic, primarily because of the sheer number of people that would have to be enrolled in a phase 3 study to truly test whether the endpoints are being met.
Vaccines are given to healthy volunteers. If safety signals arise, they may not be apparent until massive numbers of people are tested in phase 3.
“You’re never going to see the rates cut to 0%, but to see the difference between 10 people getting sick and seven people getting sick, takes very, very large numbers,” Ledley said. “There’s no way that can be done in 6 months. You’re talking about tens of thousands of people enrolled.”
He notes at this point it’s unclear what the endpoints will be and what the safety thresholds will be after consideration of risks and benefit.
Another big question for Ledley: “We don’t know what type of immunity we need to protect us against the virus. Do you just need the antibodies in your blood or do you need cells that are primed to attack the virus? Is it more of a chemical clearance or do the cells need to physically go in and digest the virus?”
History also points to the need for rigorous safety precautions that scientists fear could be compromised as trial phases overlap and processes are run in parallel instead of one step at a time.
An early batch of the Salk vaccine for polio in 1955, for example, turned out to be contaminated and caused paralysis in some children and 10 deaths, he points out.
CEPI’s Lurie adds that early candidates for another coronavirus, severe acute respiratory syndrome (SARS), “caused a reaction in the lungs that was very dangerous” before development was halted.
She also pointed to previous findings that a vaccine for dengue fever could worsen the disease in some people through a phenomenon called antibody-dependent enhancement.
Lurie and colleagues write in their paper that “it’s critical that vaccines also be developed using the tried-and-true methods, even if they may take longer to enter clinical trials or to result in large numbers of doses.”
Live attenuated vaccine
Raul Andino, PhD, a virologist at the University of California San Francisco, is among the scientists working with a tried-and-true method — a live attenuated vaccine — and he told Medscape Medical News he’s predicting it will take 2 years to develop.
He said it is cheaper to produce because scientists just have to learn how to grow the virus. Because the technology is already proven, a live attenuated vaccine could be rapidly produced on a worldwide scale.
The hope is also that a live attenuated vaccine would be given once in a lifetime and therefore be more affordable, especially in poorer countries.
“While a Moderna vaccine might be good for Europe and the United States,” he said, “It’s not going to be good for Africa, India, Brazil.”
Andino said, “I would bet money” that the front-runner vaccines so far will not be one-time vaccines.
He points out that most of the vaccine candidates are trying to protect people from disease. While there’s nothing wrong with that, he said, “In my opinion that is the lower-hanging fruit.”
“In my mind we need something that interrupts the chain of transmission and induces protection,” Andino said, important for developing herd immunity.
The reason this type of approach takes longer is because you are introducing a weakened form of the virus to the body and you have to make sure it doesn’t cause disease, not just in a small test population, but in populations who may be more susceptible to the disease, Andino said.
A call for unified strategies
Universities, countries, international consortiums, and public-private partnerships are all racing to find several safe and effective vaccines as no one entity will likely be able to provide the global solution.
Some of the efforts involve overlap of entities but with different focuses.
Along with “Operation Warp Speed” and CEPI, other collaborations include Gavi the Vaccine Alliance, whose core partners include WHO, UNICEF, the World Bank, and the Gates Foundation; and “Accelerating Therapeutic Interventions and Vaccines (ACTIV) partnership,” led by the National Institutes of Health.
Industry partners in ACTIV (18 biopharmaceutical companies), according to a May 18 article published online in the Journal of the American Medical Association, have said they will contribute their respective clinical trial capacities, regardless of which agent is studied.
Some, however, have called for more streamlining of efforts.
“Ideally we’d be working together,” Lurie told Medscape Medical News.
“I’m hopeful we will find ways to collaborate scientifically,” she said. “The US government’s responsibility is to make doses for the US. CEPI’s responsibility is to make doses for the world. A big focus of CEPI is to make sure we have manufacturing capacity outside of the US so those doses can be available to the world and they don’t get seized by wealthy countries.”
Bottazzi, Ledley, Lurie, and Andino report no relevant financial relationships.
This article first appeared on Medscape.com.
US government and industry projections that a COVID-19 vaccine will be ready by this fall or even January would take compressing what usually takes at least a decade into months, with little room for error or safety surprises.
“If all the cards fall into the right place and all the stars are aligned, you definitely could get a vaccine by December or January,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said last week.
But Fauci said a more realistic timeline is still 12 to 18 months, and experts interviewed by Medscape Medical News agree. They say that although recent developments are encouraging, history and scientific reason say the day when a COVID-19 vaccine is widely available will not come this year and may not come by the end of 2021.
The encouraging signals come primarily from two recent announcements: the $1.2 billion United States backing last week of one vaccine platform and the announcement on May 18 that the first human trials of another have produced some positive phase 1 results.
Recent developments
On May 21, the US Department of Health and Human Services (HHS) under “Operation Warp Speed” announced that the US will give AstraZeneca $1.2 billion “to make available at least 300 million doses of a coronavirus vaccine called AZD1222, with the first doses delivered as early as October 2020.”
On May 18, the Massachusetts-based biotechnology company Moderna announced that phase 1 clinical results showed that its vaccine candidate, which uses a new messenger RNA (mRNA) technology, appeared safe. Eight participants in the human trials were able to produce neutralizing antibodies that researchers believe are important in developing protection from the virus.
Moderna Chief Medical Officer Tal Zaks, MD, PhD told CNN that if the vaccine candidate does well in phase 2, “it could be ready by January 2021.”
The two candidates are among 10 in clinical trials for the SARS-CoV-2 virus, according to the World Health Organization (WHO). The AstraZeneca/ AZD1222 candidate (also called ChAdOx1 nCoV-19, in collaboration with the University of Oxford) has entered phase 2/3.
Moderna’s candidate and another being developed in Beijing, China, are in phase 2, WHO reports. As of yesterday, 115 other candidates are in preclinical evaluation.
Maria Elena Bottazzi, PhD, associate dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, Texas, told Medscape Medical News it’s important to realize that, in the case of the $1.2 billion US investment, “what they’re talking about is manufacturing.”
The idea, she said, is to pay AstraZeneca up front so that manufacturing can start before it is known whether the vaccine candidate is safe or effective, the reverse of how the clinical trial process usually works.
That way, if the candidate is deemed safe and effective, time is not lost by then deciding how to make it and distribute it.
By the end of this year, she said, “Maybe we will have many vaccines made and stored in a refrigerator somewhere. But between now and December, there’s absolutely no way you can show efficacy of the vaccine at the same time you confirm that it’s safe.”
“Take these things with a grain of salt”
Animal testing for the AstraZeneca candidate, made in partnership with the University of Oxford in the United Kingdom, has yielded lackluster results, according to results on the preprint server BioRxiv, which have not been peer-reviewed.
“The results were not bad, but they were not gangbusters,” Bottazzi said. The results show the vaccine offered only partial protection.
“Partial protection is better than no protection,” she noted. “You have to take these things with a grain of salt. We don’t know what’s going to happen in humans.”
As for the Moderna candidate, Bottazzi said, “the good news is they found an appropriate safety profile. But from an eight-person group to make the extrapolation that they have efficacy — it’s unrealistic.”
Nicole Lurie, MD, MSPH, is senior adviser to the CEO for the Coalition for Epidemic Preparedness Innovation (CEPI), a nongovernmental organization funded by the Wellcome Trust, the Bill and Melinda Gates Foundation, the European Commission, and eight countries (Australia, Belgium, Canada, Ethiopia, Germany, Japan, Norway, and the United Kingdom) charged with supporting development of vaccines for pathogens on WHO’s priority list.
She and her colleagues write in a paper published online in the New England Journal of Medicine on March 30 that “it typically takes multiple candidates and many years to produce a licensed vaccine.”
The fastest time for developing a vaccine to date is 4 years, for the mumps vaccine, licensed in 1967.
As to whether she would expect a rollout of any vaccine by the end of the year, Lurie told Medscape Medical News, “If everything goes according to plan in every way, shape or form, well then maybe you can get there. But I wouldn’t hold my breath.”
Lurie and her colleagues write that “it’s far from certain that these new platforms will be scalable or that existing capacity can provide sufficient quantities of vaccine fast enough.”
On a call with reporters today, leaders of some of the words largest pharmaceutical companies said that one of the key bottlenecks is the sheer number of vials needed in order to distribute billions of doses of a successful vaccine.
Pfizer CEO Albert Bourla, DVM, PhD, said, “Typically we are producing vaccines in single-dose vials. We are exploring with governments right now if it would be more convenient if there were 5-dose vials or 10-dose vials. I think we can resolve a significant part of the bottleneck.”
Despite the challenges, experts interviewed for this article agree that it will be possible to make a vaccine for COVID-19. They don’t expect attempts to meet the same complications that HIV researchers have seen over decades as the virus continues to confound with mutations.
Fred Ledley, MD, director of the Center for Integration of Science and Industry at Bentley University in Waltham, Massachusetts, told Medscape Medical News, “There doesn’t appear to be anything terribly diabolical about this virus. The mutation rate doesn’t appear to be anything like HIV. It appears to have some big, ugly proteins on the surface, which is good for vaccines — proteins with a lot of physical features look distinguishable from healthy cells. Signs all point to that it should be possible to make a vaccine.”
History raises safety concerns
However, Ledley said, “The idea of doing it in 6 months is largely unrealistic.”
He says 18 months is more realistic, primarily because of the sheer number of people that would have to be enrolled in a phase 3 study to truly test whether the endpoints are being met.
Vaccines are given to healthy volunteers. If safety signals arise, they may not be apparent until massive numbers of people are tested in phase 3.
“You’re never going to see the rates cut to 0%, but to see the difference between 10 people getting sick and seven people getting sick, takes very, very large numbers,” Ledley said. “There’s no way that can be done in 6 months. You’re talking about tens of thousands of people enrolled.”
He notes at this point it’s unclear what the endpoints will be and what the safety thresholds will be after consideration of risks and benefit.
Another big question for Ledley: “We don’t know what type of immunity we need to protect us against the virus. Do you just need the antibodies in your blood or do you need cells that are primed to attack the virus? Is it more of a chemical clearance or do the cells need to physically go in and digest the virus?”
History also points to the need for rigorous safety precautions that scientists fear could be compromised as trial phases overlap and processes are run in parallel instead of one step at a time.
An early batch of the Salk vaccine for polio in 1955, for example, turned out to be contaminated and caused paralysis in some children and 10 deaths, he points out.
CEPI’s Lurie adds that early candidates for another coronavirus, severe acute respiratory syndrome (SARS), “caused a reaction in the lungs that was very dangerous” before development was halted.
She also pointed to previous findings that a vaccine for dengue fever could worsen the disease in some people through a phenomenon called antibody-dependent enhancement.
Lurie and colleagues write in their paper that “it’s critical that vaccines also be developed using the tried-and-true methods, even if they may take longer to enter clinical trials or to result in large numbers of doses.”
Live attenuated vaccine
Raul Andino, PhD, a virologist at the University of California San Francisco, is among the scientists working with a tried-and-true method — a live attenuated vaccine — and he told Medscape Medical News he’s predicting it will take 2 years to develop.
He said it is cheaper to produce because scientists just have to learn how to grow the virus. Because the technology is already proven, a live attenuated vaccine could be rapidly produced on a worldwide scale.
The hope is also that a live attenuated vaccine would be given once in a lifetime and therefore be more affordable, especially in poorer countries.
“While a Moderna vaccine might be good for Europe and the United States,” he said, “It’s not going to be good for Africa, India, Brazil.”
Andino said, “I would bet money” that the front-runner vaccines so far will not be one-time vaccines.
He points out that most of the vaccine candidates are trying to protect people from disease. While there’s nothing wrong with that, he said, “In my opinion that is the lower-hanging fruit.”
“In my mind we need something that interrupts the chain of transmission and induces protection,” Andino said, important for developing herd immunity.
The reason this type of approach takes longer is because you are introducing a weakened form of the virus to the body and you have to make sure it doesn’t cause disease, not just in a small test population, but in populations who may be more susceptible to the disease, Andino said.
A call for unified strategies
Universities, countries, international consortiums, and public-private partnerships are all racing to find several safe and effective vaccines as no one entity will likely be able to provide the global solution.
Some of the efforts involve overlap of entities but with different focuses.
Along with “Operation Warp Speed” and CEPI, other collaborations include Gavi the Vaccine Alliance, whose core partners include WHO, UNICEF, the World Bank, and the Gates Foundation; and “Accelerating Therapeutic Interventions and Vaccines (ACTIV) partnership,” led by the National Institutes of Health.
Industry partners in ACTIV (18 biopharmaceutical companies), according to a May 18 article published online in the Journal of the American Medical Association, have said they will contribute their respective clinical trial capacities, regardless of which agent is studied.
Some, however, have called for more streamlining of efforts.
“Ideally we’d be working together,” Lurie told Medscape Medical News.
“I’m hopeful we will find ways to collaborate scientifically,” she said. “The US government’s responsibility is to make doses for the US. CEPI’s responsibility is to make doses for the world. A big focus of CEPI is to make sure we have manufacturing capacity outside of the US so those doses can be available to the world and they don’t get seized by wealthy countries.”
Bottazzi, Ledley, Lurie, and Andino report no relevant financial relationships.
This article first appeared on Medscape.com.
US government and industry projections that a COVID-19 vaccine will be ready by this fall or even January would take compressing what usually takes at least a decade into months, with little room for error or safety surprises.
“If all the cards fall into the right place and all the stars are aligned, you definitely could get a vaccine by December or January,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, said last week.
But Fauci said a more realistic timeline is still 12 to 18 months, and experts interviewed by Medscape Medical News agree. They say that although recent developments are encouraging, history and scientific reason say the day when a COVID-19 vaccine is widely available will not come this year and may not come by the end of 2021.
The encouraging signals come primarily from two recent announcements: the $1.2 billion United States backing last week of one vaccine platform and the announcement on May 18 that the first human trials of another have produced some positive phase 1 results.
Recent developments
On May 21, the US Department of Health and Human Services (HHS) under “Operation Warp Speed” announced that the US will give AstraZeneca $1.2 billion “to make available at least 300 million doses of a coronavirus vaccine called AZD1222, with the first doses delivered as early as October 2020.”
On May 18, the Massachusetts-based biotechnology company Moderna announced that phase 1 clinical results showed that its vaccine candidate, which uses a new messenger RNA (mRNA) technology, appeared safe. Eight participants in the human trials were able to produce neutralizing antibodies that researchers believe are important in developing protection from the virus.
Moderna Chief Medical Officer Tal Zaks, MD, PhD told CNN that if the vaccine candidate does well in phase 2, “it could be ready by January 2021.”
The two candidates are among 10 in clinical trials for the SARS-CoV-2 virus, according to the World Health Organization (WHO). The AstraZeneca/ AZD1222 candidate (also called ChAdOx1 nCoV-19, in collaboration with the University of Oxford) has entered phase 2/3.
Moderna’s candidate and another being developed in Beijing, China, are in phase 2, WHO reports. As of yesterday, 115 other candidates are in preclinical evaluation.
Maria Elena Bottazzi, PhD, associate dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, Texas, told Medscape Medical News it’s important to realize that, in the case of the $1.2 billion US investment, “what they’re talking about is manufacturing.”
The idea, she said, is to pay AstraZeneca up front so that manufacturing can start before it is known whether the vaccine candidate is safe or effective, the reverse of how the clinical trial process usually works.
That way, if the candidate is deemed safe and effective, time is not lost by then deciding how to make it and distribute it.
By the end of this year, she said, “Maybe we will have many vaccines made and stored in a refrigerator somewhere. But between now and December, there’s absolutely no way you can show efficacy of the vaccine at the same time you confirm that it’s safe.”
“Take these things with a grain of salt”
Animal testing for the AstraZeneca candidate, made in partnership with the University of Oxford in the United Kingdom, has yielded lackluster results, according to results on the preprint server BioRxiv, which have not been peer-reviewed.
“The results were not bad, but they were not gangbusters,” Bottazzi said. The results show the vaccine offered only partial protection.
“Partial protection is better than no protection,” she noted. “You have to take these things with a grain of salt. We don’t know what’s going to happen in humans.”
As for the Moderna candidate, Bottazzi said, “the good news is they found an appropriate safety profile. But from an eight-person group to make the extrapolation that they have efficacy — it’s unrealistic.”
Nicole Lurie, MD, MSPH, is senior adviser to the CEO for the Coalition for Epidemic Preparedness Innovation (CEPI), a nongovernmental organization funded by the Wellcome Trust, the Bill and Melinda Gates Foundation, the European Commission, and eight countries (Australia, Belgium, Canada, Ethiopia, Germany, Japan, Norway, and the United Kingdom) charged with supporting development of vaccines for pathogens on WHO’s priority list.
She and her colleagues write in a paper published online in the New England Journal of Medicine on March 30 that “it typically takes multiple candidates and many years to produce a licensed vaccine.”
The fastest time for developing a vaccine to date is 4 years, for the mumps vaccine, licensed in 1967.
As to whether she would expect a rollout of any vaccine by the end of the year, Lurie told Medscape Medical News, “If everything goes according to plan in every way, shape or form, well then maybe you can get there. But I wouldn’t hold my breath.”
Lurie and her colleagues write that “it’s far from certain that these new platforms will be scalable or that existing capacity can provide sufficient quantities of vaccine fast enough.”
On a call with reporters today, leaders of some of the words largest pharmaceutical companies said that one of the key bottlenecks is the sheer number of vials needed in order to distribute billions of doses of a successful vaccine.
Pfizer CEO Albert Bourla, DVM, PhD, said, “Typically we are producing vaccines in single-dose vials. We are exploring with governments right now if it would be more convenient if there were 5-dose vials or 10-dose vials. I think we can resolve a significant part of the bottleneck.”
Despite the challenges, experts interviewed for this article agree that it will be possible to make a vaccine for COVID-19. They don’t expect attempts to meet the same complications that HIV researchers have seen over decades as the virus continues to confound with mutations.
Fred Ledley, MD, director of the Center for Integration of Science and Industry at Bentley University in Waltham, Massachusetts, told Medscape Medical News, “There doesn’t appear to be anything terribly diabolical about this virus. The mutation rate doesn’t appear to be anything like HIV. It appears to have some big, ugly proteins on the surface, which is good for vaccines — proteins with a lot of physical features look distinguishable from healthy cells. Signs all point to that it should be possible to make a vaccine.”
History raises safety concerns
However, Ledley said, “The idea of doing it in 6 months is largely unrealistic.”
He says 18 months is more realistic, primarily because of the sheer number of people that would have to be enrolled in a phase 3 study to truly test whether the endpoints are being met.
Vaccines are given to healthy volunteers. If safety signals arise, they may not be apparent until massive numbers of people are tested in phase 3.
“You’re never going to see the rates cut to 0%, but to see the difference between 10 people getting sick and seven people getting sick, takes very, very large numbers,” Ledley said. “There’s no way that can be done in 6 months. You’re talking about tens of thousands of people enrolled.”
He notes at this point it’s unclear what the endpoints will be and what the safety thresholds will be after consideration of risks and benefit.
Another big question for Ledley: “We don’t know what type of immunity we need to protect us against the virus. Do you just need the antibodies in your blood or do you need cells that are primed to attack the virus? Is it more of a chemical clearance or do the cells need to physically go in and digest the virus?”
History also points to the need for rigorous safety precautions that scientists fear could be compromised as trial phases overlap and processes are run in parallel instead of one step at a time.
An early batch of the Salk vaccine for polio in 1955, for example, turned out to be contaminated and caused paralysis in some children and 10 deaths, he points out.
CEPI’s Lurie adds that early candidates for another coronavirus, severe acute respiratory syndrome (SARS), “caused a reaction in the lungs that was very dangerous” before development was halted.
She also pointed to previous findings that a vaccine for dengue fever could worsen the disease in some people through a phenomenon called antibody-dependent enhancement.
Lurie and colleagues write in their paper that “it’s critical that vaccines also be developed using the tried-and-true methods, even if they may take longer to enter clinical trials or to result in large numbers of doses.”
Live attenuated vaccine
Raul Andino, PhD, a virologist at the University of California San Francisco, is among the scientists working with a tried-and-true method — a live attenuated vaccine — and he told Medscape Medical News he’s predicting it will take 2 years to develop.
He said it is cheaper to produce because scientists just have to learn how to grow the virus. Because the technology is already proven, a live attenuated vaccine could be rapidly produced on a worldwide scale.
The hope is also that a live attenuated vaccine would be given once in a lifetime and therefore be more affordable, especially in poorer countries.
“While a Moderna vaccine might be good for Europe and the United States,” he said, “It’s not going to be good for Africa, India, Brazil.”
Andino said, “I would bet money” that the front-runner vaccines so far will not be one-time vaccines.
He points out that most of the vaccine candidates are trying to protect people from disease. While there’s nothing wrong with that, he said, “In my opinion that is the lower-hanging fruit.”
“In my mind we need something that interrupts the chain of transmission and induces protection,” Andino said, important for developing herd immunity.
The reason this type of approach takes longer is because you are introducing a weakened form of the virus to the body and you have to make sure it doesn’t cause disease, not just in a small test population, but in populations who may be more susceptible to the disease, Andino said.
A call for unified strategies
Universities, countries, international consortiums, and public-private partnerships are all racing to find several safe and effective vaccines as no one entity will likely be able to provide the global solution.
Some of the efforts involve overlap of entities but with different focuses.
Along with “Operation Warp Speed” and CEPI, other collaborations include Gavi the Vaccine Alliance, whose core partners include WHO, UNICEF, the World Bank, and the Gates Foundation; and “Accelerating Therapeutic Interventions and Vaccines (ACTIV) partnership,” led by the National Institutes of Health.
Industry partners in ACTIV (18 biopharmaceutical companies), according to a May 18 article published online in the Journal of the American Medical Association, have said they will contribute their respective clinical trial capacities, regardless of which agent is studied.
Some, however, have called for more streamlining of efforts.
“Ideally we’d be working together,” Lurie told Medscape Medical News.
“I’m hopeful we will find ways to collaborate scientifically,” she said. “The US government’s responsibility is to make doses for the US. CEPI’s responsibility is to make doses for the world. A big focus of CEPI is to make sure we have manufacturing capacity outside of the US so those doses can be available to the world and they don’t get seized by wealthy countries.”
Bottazzi, Ledley, Lurie, and Andino report no relevant financial relationships.
This article first appeared on Medscape.com.
COVID-19: Putting distance between projection and reality
When it comes to COVID-19, studies show that social distancing flattened the curve.
Cumulative hospitalizations in four states with stay-at-home orders were well short of the projected exponential growth curves, Soumya Sen, PhD, of the University of Minnesota, Minneapolis, and associates reported May 27 in a research letter in JAMA. All states were observed through April 28.
The deviations between observed cases and worst-case projections in the four states – Colorado, Minnesota, Ohio, and Virginia – all began within 8-10 days of the stay-at-home orders. In Minnesota, 17 days after the order, there were 361 cumulative hospitalizations, compared with a projection of 988 had no such action been taken. In Virginia, the corresponding numbers were 1,048 observed and 2,335 projected, they reported.
“Observed hospitalizations consistently fell outside of the 95% prediction bands of the projected exponential growth curve,” Dr. Sen and associates noted.
In a separate Canadian study measuring COVID-19 patients occupying ICU beds in Ontario and deaths among those cases, hospitals “would have rapidly exceeded ICU capacity and observed substantially higher mortality” without any physical distancing intervention, Ashleigh R. Tuite, PhD, MPH, of the University of Toronto and associates wrote May 27 in a letter in Annals of Internal Medicine.
Their model, based on a 70% reduction in physical contacts for March 19–May 3, projected 2.0 cases per 100,000 population with physical distancing and 37.4 per 100,000 without. Deaths among those ICU patients were projected at 2.5 per 100,000 with distancing and 12.7 per 100,000 without intervention, they reported.
“Our modeling also shows the challenges associated with relaxation of physical distancing measures without a concomitant increase in other public health measures. Specifically, when the number of contacts between persons returns to more than 50% of normal, we expect disease activity to resurge rapidly and ICUs to quickly reach capacity,” they wrote.
The study published in JAMA used publicly available data from the University of Minnesota COVID-19 Hospitalization Project, which is partially funded by the University of Minnesota Office of Academic Clinical Affairs and United Health Foundation.
SOURCES: Sen S et al. JAMA. 2020 May 27. doi: 10.1001/jama.2020.9176; Tuite AR et al. Ann Intern Med. 2020 May 27. doi: 10.7326/M20-2945.
When it comes to COVID-19, studies show that social distancing flattened the curve.
Cumulative hospitalizations in four states with stay-at-home orders were well short of the projected exponential growth curves, Soumya Sen, PhD, of the University of Minnesota, Minneapolis, and associates reported May 27 in a research letter in JAMA. All states were observed through April 28.
The deviations between observed cases and worst-case projections in the four states – Colorado, Minnesota, Ohio, and Virginia – all began within 8-10 days of the stay-at-home orders. In Minnesota, 17 days after the order, there were 361 cumulative hospitalizations, compared with a projection of 988 had no such action been taken. In Virginia, the corresponding numbers were 1,048 observed and 2,335 projected, they reported.
“Observed hospitalizations consistently fell outside of the 95% prediction bands of the projected exponential growth curve,” Dr. Sen and associates noted.
In a separate Canadian study measuring COVID-19 patients occupying ICU beds in Ontario and deaths among those cases, hospitals “would have rapidly exceeded ICU capacity and observed substantially higher mortality” without any physical distancing intervention, Ashleigh R. Tuite, PhD, MPH, of the University of Toronto and associates wrote May 27 in a letter in Annals of Internal Medicine.
Their model, based on a 70% reduction in physical contacts for March 19–May 3, projected 2.0 cases per 100,000 population with physical distancing and 37.4 per 100,000 without. Deaths among those ICU patients were projected at 2.5 per 100,000 with distancing and 12.7 per 100,000 without intervention, they reported.
“Our modeling also shows the challenges associated with relaxation of physical distancing measures without a concomitant increase in other public health measures. Specifically, when the number of contacts between persons returns to more than 50% of normal, we expect disease activity to resurge rapidly and ICUs to quickly reach capacity,” they wrote.
The study published in JAMA used publicly available data from the University of Minnesota COVID-19 Hospitalization Project, which is partially funded by the University of Minnesota Office of Academic Clinical Affairs and United Health Foundation.
SOURCES: Sen S et al. JAMA. 2020 May 27. doi: 10.1001/jama.2020.9176; Tuite AR et al. Ann Intern Med. 2020 May 27. doi: 10.7326/M20-2945.
When it comes to COVID-19, studies show that social distancing flattened the curve.
Cumulative hospitalizations in four states with stay-at-home orders were well short of the projected exponential growth curves, Soumya Sen, PhD, of the University of Minnesota, Minneapolis, and associates reported May 27 in a research letter in JAMA. All states were observed through April 28.
The deviations between observed cases and worst-case projections in the four states – Colorado, Minnesota, Ohio, and Virginia – all began within 8-10 days of the stay-at-home orders. In Minnesota, 17 days after the order, there were 361 cumulative hospitalizations, compared with a projection of 988 had no such action been taken. In Virginia, the corresponding numbers were 1,048 observed and 2,335 projected, they reported.
“Observed hospitalizations consistently fell outside of the 95% prediction bands of the projected exponential growth curve,” Dr. Sen and associates noted.
In a separate Canadian study measuring COVID-19 patients occupying ICU beds in Ontario and deaths among those cases, hospitals “would have rapidly exceeded ICU capacity and observed substantially higher mortality” without any physical distancing intervention, Ashleigh R. Tuite, PhD, MPH, of the University of Toronto and associates wrote May 27 in a letter in Annals of Internal Medicine.
Their model, based on a 70% reduction in physical contacts for March 19–May 3, projected 2.0 cases per 100,000 population with physical distancing and 37.4 per 100,000 without. Deaths among those ICU patients were projected at 2.5 per 100,000 with distancing and 12.7 per 100,000 without intervention, they reported.
“Our modeling also shows the challenges associated with relaxation of physical distancing measures without a concomitant increase in other public health measures. Specifically, when the number of contacts between persons returns to more than 50% of normal, we expect disease activity to resurge rapidly and ICUs to quickly reach capacity,” they wrote.
The study published in JAMA used publicly available data from the University of Minnesota COVID-19 Hospitalization Project, which is partially funded by the University of Minnesota Office of Academic Clinical Affairs and United Health Foundation.
SOURCES: Sen S et al. JAMA. 2020 May 27. doi: 10.1001/jama.2020.9176; Tuite AR et al. Ann Intern Med. 2020 May 27. doi: 10.7326/M20-2945.
Placental injury reported in women with COVID-19
Neonates appear healthy so far
Maternal vascular malperfusion and intervillous thrombi were more common in the placentas of women infected with SARS-CoV-2, compared with historic controls, report researchers who conducted the first-of-its-kind case series in the English literature. Nevertheless, the neonates in the report appear to be healthy so far and all tested negative for the virus.
Although the series examining placentas from 16 women is small, it carries a larger implication – that increased antenatal surveillance for pregnant women infected with SARS-CoV-2 may be indicated, the researchers noted.
Furthermore, the results could align with other reports of coagulation and vascular abnormalities among people with COVID-19. “I would say that our findings fit into that larger picture of vascular injury. This is developing, and there are some significant ways that these feeder vessels to the placenta are different, but if this is the emerging paradigm, our findings can fit into it,” Jeffrey A. Goldstein, MD, PhD, assistant professor of pathology at Northwestern University, Chicago, said in an interview.
The research was published in the American Journal of Clinical Pathology.
Prior case series reported in Wuhan, China, do not currently suggest that pregnant women are more likely to experience severe COVID-19, in contrast to observations during severe acute respiratory syndrome and Middle East respiratory syndrome outbreaks. “However,” the researchers noted, “adverse perinatal outcomes have been reported, including increased risks of miscarriage, preeclampsia, preterm birth, and stillbirth.”
To learn more, Dr. Goldstein, lead author Elisheva D. Shanes, MD, and colleagues examined the histology of placentas from women with COVID-19 giving birth between March 18 and May 5, 2020. They compared these placentas with over 17,000 historic controls and 215 women who had their placentas evaluated as part of a melanoma history study.
A total of 10 women were diagnosed with COVID-19 upon presentation to labor and delivery, 4 others were diagnosed approximately 1 month before delivery and the remaining 2 within 1 week of delivery. Ten of the patients were symptomatic and two required oxygen. None of the patients received intubation or died. A total of 14 patients delivered at term, 1 delivered at 34 weeks, and the remaining case experienced a 16-week intrauterine fetal demise (IUFD). The IUFD was excluded from subsequent statistical analysis.
The neonates each had a 5-minute Apgar score of 9. Most infants were discharged on the first or second day of life, and there were no neonatal deaths.
Key findings
Of the 15 placentas, 12 featured maternal vascular malperfusion. This rate was significantly higher than historic controls (P = .046) and melanoma study controls (P = .001).
Specific features varied between groups, with decidual arteriopathy, atherosis and fibrinoid necrosis of maternal vessels, and mural hypertrophy of membrane arterioles observed more often in COVID-19 cases than in all historical controls. In addition, peripheral infarctions, decidual arteriopathy, atherosis, and fibrinoid necrosis, and mural hypertrophy being more common in COVID-19 cases than in placentas of women with a history of melanoma.
In contrast, features of fetal vascular malperfusion were observed in 12 of 15 cases, but not at rates significantly different from the control groups. Chorangiosis, villous edema, and intervillous thrombi also were more common in the COVID-19 cohort.
Dr. Goldstein was surprised they did not observe much acute or chronic inflammation. “We see chronic inflammation in the placenta in response to many viruses, such as cytomegalovirus, so you might expect similar findings, but we didn’t see any increase above the controls.”
There are a couple of case reports of histiocytic intervillositis – a particularly severe form of chronic inflammation – associated with COVID-19, “but we didn’t see that in our study,” he added.
Clinical implications
The healthy neonatal outcomes reported in the study occurred despite the placental injury, which may be caused by the redundancy built into placentas for delivering oxygen and nutrients and for removing waste.
The negative COVID-19 test results in all infants also supports existing evidence that vertical transmission of the virus is uncommon. The finding also suggests that any damage to the placenta is likely related to maternal infection.
Only one mother in the COVID-19 cohort was hypertensive, which surprised the researchers because intervillous thrombi have been associated with maternal high blood pressure. “In the context of research suggesting an increase of thrombotic and thromboembolic disorders in COVID-19,” the researchers noted, “these may represent placental formation or deposition of thrombi in response to the virus.”
One of the priorities for the researchers going forward is to monitor the longer-term outcomes of the infants, Dr. Goldstein said. “We know the people in utero during the 1918-1919 flu pandemic had higher rates of heart disease and other long-term problems, so we want to be on the lookout for something similar.”
Valuable insight
“This is a comprehensive case series of this topic, with findings worth noting and sharing in a timely fashion,” Karen Mestan, MD, associate professor of pediatrics within the division of neonatology at Northwestern University, said when asked to comment on the study.
“The information is valuable to neonatologists as the short- and long-term effects of COVID-19 exposure on newborn infants are still largely unknown,” she added. “Details of placental pathology provide emerging insight and may help us understand mother-baby vertical transmission during the current pandemic.”
Dr. Goldstein and Dr. Mestan had no relevant financial disclosures.
SOURCE: Shanes ED et al. Am J Clin Pathol. 2020 May 22. doi: 10.1093/ajcp/aqaa089.
Neonates appear healthy so far
Neonates appear healthy so far
Maternal vascular malperfusion and intervillous thrombi were more common in the placentas of women infected with SARS-CoV-2, compared with historic controls, report researchers who conducted the first-of-its-kind case series in the English literature. Nevertheless, the neonates in the report appear to be healthy so far and all tested negative for the virus.
Although the series examining placentas from 16 women is small, it carries a larger implication – that increased antenatal surveillance for pregnant women infected with SARS-CoV-2 may be indicated, the researchers noted.
Furthermore, the results could align with other reports of coagulation and vascular abnormalities among people with COVID-19. “I would say that our findings fit into that larger picture of vascular injury. This is developing, and there are some significant ways that these feeder vessels to the placenta are different, but if this is the emerging paradigm, our findings can fit into it,” Jeffrey A. Goldstein, MD, PhD, assistant professor of pathology at Northwestern University, Chicago, said in an interview.
The research was published in the American Journal of Clinical Pathology.
Prior case series reported in Wuhan, China, do not currently suggest that pregnant women are more likely to experience severe COVID-19, in contrast to observations during severe acute respiratory syndrome and Middle East respiratory syndrome outbreaks. “However,” the researchers noted, “adverse perinatal outcomes have been reported, including increased risks of miscarriage, preeclampsia, preterm birth, and stillbirth.”
To learn more, Dr. Goldstein, lead author Elisheva D. Shanes, MD, and colleagues examined the histology of placentas from women with COVID-19 giving birth between March 18 and May 5, 2020. They compared these placentas with over 17,000 historic controls and 215 women who had their placentas evaluated as part of a melanoma history study.
A total of 10 women were diagnosed with COVID-19 upon presentation to labor and delivery, 4 others were diagnosed approximately 1 month before delivery and the remaining 2 within 1 week of delivery. Ten of the patients were symptomatic and two required oxygen. None of the patients received intubation or died. A total of 14 patients delivered at term, 1 delivered at 34 weeks, and the remaining case experienced a 16-week intrauterine fetal demise (IUFD). The IUFD was excluded from subsequent statistical analysis.
The neonates each had a 5-minute Apgar score of 9. Most infants were discharged on the first or second day of life, and there were no neonatal deaths.
Key findings
Of the 15 placentas, 12 featured maternal vascular malperfusion. This rate was significantly higher than historic controls (P = .046) and melanoma study controls (P = .001).
Specific features varied between groups, with decidual arteriopathy, atherosis and fibrinoid necrosis of maternal vessels, and mural hypertrophy of membrane arterioles observed more often in COVID-19 cases than in all historical controls. In addition, peripheral infarctions, decidual arteriopathy, atherosis, and fibrinoid necrosis, and mural hypertrophy being more common in COVID-19 cases than in placentas of women with a history of melanoma.
In contrast, features of fetal vascular malperfusion were observed in 12 of 15 cases, but not at rates significantly different from the control groups. Chorangiosis, villous edema, and intervillous thrombi also were more common in the COVID-19 cohort.
Dr. Goldstein was surprised they did not observe much acute or chronic inflammation. “We see chronic inflammation in the placenta in response to many viruses, such as cytomegalovirus, so you might expect similar findings, but we didn’t see any increase above the controls.”
There are a couple of case reports of histiocytic intervillositis – a particularly severe form of chronic inflammation – associated with COVID-19, “but we didn’t see that in our study,” he added.
Clinical implications
The healthy neonatal outcomes reported in the study occurred despite the placental injury, which may be caused by the redundancy built into placentas for delivering oxygen and nutrients and for removing waste.
The negative COVID-19 test results in all infants also supports existing evidence that vertical transmission of the virus is uncommon. The finding also suggests that any damage to the placenta is likely related to maternal infection.
Only one mother in the COVID-19 cohort was hypertensive, which surprised the researchers because intervillous thrombi have been associated with maternal high blood pressure. “In the context of research suggesting an increase of thrombotic and thromboembolic disorders in COVID-19,” the researchers noted, “these may represent placental formation or deposition of thrombi in response to the virus.”
One of the priorities for the researchers going forward is to monitor the longer-term outcomes of the infants, Dr. Goldstein said. “We know the people in utero during the 1918-1919 flu pandemic had higher rates of heart disease and other long-term problems, so we want to be on the lookout for something similar.”
Valuable insight
“This is a comprehensive case series of this topic, with findings worth noting and sharing in a timely fashion,” Karen Mestan, MD, associate professor of pediatrics within the division of neonatology at Northwestern University, said when asked to comment on the study.
“The information is valuable to neonatologists as the short- and long-term effects of COVID-19 exposure on newborn infants are still largely unknown,” she added. “Details of placental pathology provide emerging insight and may help us understand mother-baby vertical transmission during the current pandemic.”
Dr. Goldstein and Dr. Mestan had no relevant financial disclosures.
SOURCE: Shanes ED et al. Am J Clin Pathol. 2020 May 22. doi: 10.1093/ajcp/aqaa089.
Maternal vascular malperfusion and intervillous thrombi were more common in the placentas of women infected with SARS-CoV-2, compared with historic controls, report researchers who conducted the first-of-its-kind case series in the English literature. Nevertheless, the neonates in the report appear to be healthy so far and all tested negative for the virus.
Although the series examining placentas from 16 women is small, it carries a larger implication – that increased antenatal surveillance for pregnant women infected with SARS-CoV-2 may be indicated, the researchers noted.
Furthermore, the results could align with other reports of coagulation and vascular abnormalities among people with COVID-19. “I would say that our findings fit into that larger picture of vascular injury. This is developing, and there are some significant ways that these feeder vessels to the placenta are different, but if this is the emerging paradigm, our findings can fit into it,” Jeffrey A. Goldstein, MD, PhD, assistant professor of pathology at Northwestern University, Chicago, said in an interview.
The research was published in the American Journal of Clinical Pathology.
Prior case series reported in Wuhan, China, do not currently suggest that pregnant women are more likely to experience severe COVID-19, in contrast to observations during severe acute respiratory syndrome and Middle East respiratory syndrome outbreaks. “However,” the researchers noted, “adverse perinatal outcomes have been reported, including increased risks of miscarriage, preeclampsia, preterm birth, and stillbirth.”
To learn more, Dr. Goldstein, lead author Elisheva D. Shanes, MD, and colleagues examined the histology of placentas from women with COVID-19 giving birth between March 18 and May 5, 2020. They compared these placentas with over 17,000 historic controls and 215 women who had their placentas evaluated as part of a melanoma history study.
A total of 10 women were diagnosed with COVID-19 upon presentation to labor and delivery, 4 others were diagnosed approximately 1 month before delivery and the remaining 2 within 1 week of delivery. Ten of the patients were symptomatic and two required oxygen. None of the patients received intubation or died. A total of 14 patients delivered at term, 1 delivered at 34 weeks, and the remaining case experienced a 16-week intrauterine fetal demise (IUFD). The IUFD was excluded from subsequent statistical analysis.
The neonates each had a 5-minute Apgar score of 9. Most infants were discharged on the first or second day of life, and there were no neonatal deaths.
Key findings
Of the 15 placentas, 12 featured maternal vascular malperfusion. This rate was significantly higher than historic controls (P = .046) and melanoma study controls (P = .001).
Specific features varied between groups, with decidual arteriopathy, atherosis and fibrinoid necrosis of maternal vessels, and mural hypertrophy of membrane arterioles observed more often in COVID-19 cases than in all historical controls. In addition, peripheral infarctions, decidual arteriopathy, atherosis, and fibrinoid necrosis, and mural hypertrophy being more common in COVID-19 cases than in placentas of women with a history of melanoma.
In contrast, features of fetal vascular malperfusion were observed in 12 of 15 cases, but not at rates significantly different from the control groups. Chorangiosis, villous edema, and intervillous thrombi also were more common in the COVID-19 cohort.
Dr. Goldstein was surprised they did not observe much acute or chronic inflammation. “We see chronic inflammation in the placenta in response to many viruses, such as cytomegalovirus, so you might expect similar findings, but we didn’t see any increase above the controls.”
There are a couple of case reports of histiocytic intervillositis – a particularly severe form of chronic inflammation – associated with COVID-19, “but we didn’t see that in our study,” he added.
Clinical implications
The healthy neonatal outcomes reported in the study occurred despite the placental injury, which may be caused by the redundancy built into placentas for delivering oxygen and nutrients and for removing waste.
The negative COVID-19 test results in all infants also supports existing evidence that vertical transmission of the virus is uncommon. The finding also suggests that any damage to the placenta is likely related to maternal infection.
Only one mother in the COVID-19 cohort was hypertensive, which surprised the researchers because intervillous thrombi have been associated with maternal high blood pressure. “In the context of research suggesting an increase of thrombotic and thromboembolic disorders in COVID-19,” the researchers noted, “these may represent placental formation or deposition of thrombi in response to the virus.”
One of the priorities for the researchers going forward is to monitor the longer-term outcomes of the infants, Dr. Goldstein said. “We know the people in utero during the 1918-1919 flu pandemic had higher rates of heart disease and other long-term problems, so we want to be on the lookout for something similar.”
Valuable insight
“This is a comprehensive case series of this topic, with findings worth noting and sharing in a timely fashion,” Karen Mestan, MD, associate professor of pediatrics within the division of neonatology at Northwestern University, said when asked to comment on the study.
“The information is valuable to neonatologists as the short- and long-term effects of COVID-19 exposure on newborn infants are still largely unknown,” she added. “Details of placental pathology provide emerging insight and may help us understand mother-baby vertical transmission during the current pandemic.”
Dr. Goldstein and Dr. Mestan had no relevant financial disclosures.
SOURCE: Shanes ED et al. Am J Clin Pathol. 2020 May 22. doi: 10.1093/ajcp/aqaa089.
FROM THE AMERICAN JOURNAL OF CLINICAL PATHOLOGY
SARS-CoV-2 infection rate 16% in asymptomatic pregnant women at delivery
Among women with a planned delivery in a New York City health system during the first half of April, the rate of asymptomatic SARS-CoV-2 infection was 16%, according to a study published in Obstetrics & Gynecology. Among the patients’ designated support persons, the asymptomatic carrier rate was 10%.
“If universal testing of pregnant patients in a high prevalence area is not performed, health care workers will be inadvertently exposed to COVID-19, unless universal precautions with personal protective equipment are taken,” wrote the researchers affiliated with the department of obstetrics, gynecology, and reproductive medicine at Icahn School of Medicine at Mount Sinai, New York.
Angela Bianco, MD, and colleagues conducted an observational study of women who were scheduled for a planned delivery within the Mount Sinai Health System between April 4 and April 15, 2020. Patients and their designated support person completed a telephone screen and underwent COVID-19 testing the day before a scheduled delivery. If support persons screened positive during the telephone interview about COVID-19 symptoms, they could not attend the birth, and patients could contact a different support person to be screened and tested. “All patients and their support persons were informed of their SARS-CoV-2 test results before admission,” the investigators wrote. “Those who tested positive were counseled regarding symptomatology that should prompt medical attention.”
In all, researchers screened 158 patients with a planned delivery, and 155 agreed to undergo COVID-19 testing. Of the 155 women tested, 24 (16%) tested positive for SARS CoV-2 infection. Among 146 support persons who had a negative interview screen and underwent SARS-CoV-2 testing, 14 (10%) tested positive for SARS-CoV-2 infection.
Test results were substantially concordant among patient and support person pairs. “Among patients who tested positive for COVID-19 infection and had a support person present, 11 of 19 (58%) support persons also tested positive for COVID-19 infection,” the authors reported. “Among patients who tested negative for COVID-19 infection and had a support person present, only 3 of 127 (2.4%) support persons tested positive for COVID-19 infection.”
Telephone screening did not identify any of the COVID-19–positive cases. Of the 24 patients with SARS-CoV-2 infection, none of their newborns tested positive at birth.
“Universal testing ... provides a mechanism for more accurate counseling of patients regarding issues such as newborn skin-to-skin contact and breastfeeding,” noted Dr. Bianco and colleagues. At their institution, parents with COVID-19 are instructed to wear a mask and practice proper hand hygiene when caring for their newborns.
Kristina Adams Waldorf, MD, said in an interview that the study by Bianco et al. underscores the high rate of asymptomatic or mildly symptomatic COVID-19 infections detected with universal screening in a hospital at the U.S. epicenter of the pandemic. “Each state and hospital will need to evaluate their own data to determine the value of universal screening for their patient population. In rural parts of America that have yet to see cases, universal screening may not make sense, but these areas are likely to be few and far between. The rest of America will need to quickly get on board with universal screening to protect their labor and delivery staff.”
Testing the partner was a strength of the study. “It is reassuring that when a pregnant woman tested negative for SARS-CoV-2, the rate was very, very low (2.4%) that her partner would test positive. However, it was disconcerting that telephone screening for common symptoms associated with COVID-19 was not very helpful in identifying cases,” said Dr. Waldorf, a professor of obstetrics and gynecology at the University of Washington, Seattle. She was not involved in the study by Bianco et al.
One study author receives payment from the American Board of Obstetrics and Gynecology for serving as a board examiner, receives payment from UpToDate, and serves as an expert witness in malpractice and products liability cases. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Bianco A et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003985.
Among women with a planned delivery in a New York City health system during the first half of April, the rate of asymptomatic SARS-CoV-2 infection was 16%, according to a study published in Obstetrics & Gynecology. Among the patients’ designated support persons, the asymptomatic carrier rate was 10%.
“If universal testing of pregnant patients in a high prevalence area is not performed, health care workers will be inadvertently exposed to COVID-19, unless universal precautions with personal protective equipment are taken,” wrote the researchers affiliated with the department of obstetrics, gynecology, and reproductive medicine at Icahn School of Medicine at Mount Sinai, New York.
Angela Bianco, MD, and colleagues conducted an observational study of women who were scheduled for a planned delivery within the Mount Sinai Health System between April 4 and April 15, 2020. Patients and their designated support person completed a telephone screen and underwent COVID-19 testing the day before a scheduled delivery. If support persons screened positive during the telephone interview about COVID-19 symptoms, they could not attend the birth, and patients could contact a different support person to be screened and tested. “All patients and their support persons were informed of their SARS-CoV-2 test results before admission,” the investigators wrote. “Those who tested positive were counseled regarding symptomatology that should prompt medical attention.”
In all, researchers screened 158 patients with a planned delivery, and 155 agreed to undergo COVID-19 testing. Of the 155 women tested, 24 (16%) tested positive for SARS CoV-2 infection. Among 146 support persons who had a negative interview screen and underwent SARS-CoV-2 testing, 14 (10%) tested positive for SARS-CoV-2 infection.
Test results were substantially concordant among patient and support person pairs. “Among patients who tested positive for COVID-19 infection and had a support person present, 11 of 19 (58%) support persons also tested positive for COVID-19 infection,” the authors reported. “Among patients who tested negative for COVID-19 infection and had a support person present, only 3 of 127 (2.4%) support persons tested positive for COVID-19 infection.”
Telephone screening did not identify any of the COVID-19–positive cases. Of the 24 patients with SARS-CoV-2 infection, none of their newborns tested positive at birth.
“Universal testing ... provides a mechanism for more accurate counseling of patients regarding issues such as newborn skin-to-skin contact and breastfeeding,” noted Dr. Bianco and colleagues. At their institution, parents with COVID-19 are instructed to wear a mask and practice proper hand hygiene when caring for their newborns.
Kristina Adams Waldorf, MD, said in an interview that the study by Bianco et al. underscores the high rate of asymptomatic or mildly symptomatic COVID-19 infections detected with universal screening in a hospital at the U.S. epicenter of the pandemic. “Each state and hospital will need to evaluate their own data to determine the value of universal screening for their patient population. In rural parts of America that have yet to see cases, universal screening may not make sense, but these areas are likely to be few and far between. The rest of America will need to quickly get on board with universal screening to protect their labor and delivery staff.”
Testing the partner was a strength of the study. “It is reassuring that when a pregnant woman tested negative for SARS-CoV-2, the rate was very, very low (2.4%) that her partner would test positive. However, it was disconcerting that telephone screening for common symptoms associated with COVID-19 was not very helpful in identifying cases,” said Dr. Waldorf, a professor of obstetrics and gynecology at the University of Washington, Seattle. She was not involved in the study by Bianco et al.
One study author receives payment from the American Board of Obstetrics and Gynecology for serving as a board examiner, receives payment from UpToDate, and serves as an expert witness in malpractice and products liability cases. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Bianco A et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003985.
Among women with a planned delivery in a New York City health system during the first half of April, the rate of asymptomatic SARS-CoV-2 infection was 16%, according to a study published in Obstetrics & Gynecology. Among the patients’ designated support persons, the asymptomatic carrier rate was 10%.
“If universal testing of pregnant patients in a high prevalence area is not performed, health care workers will be inadvertently exposed to COVID-19, unless universal precautions with personal protective equipment are taken,” wrote the researchers affiliated with the department of obstetrics, gynecology, and reproductive medicine at Icahn School of Medicine at Mount Sinai, New York.
Angela Bianco, MD, and colleagues conducted an observational study of women who were scheduled for a planned delivery within the Mount Sinai Health System between April 4 and April 15, 2020. Patients and their designated support person completed a telephone screen and underwent COVID-19 testing the day before a scheduled delivery. If support persons screened positive during the telephone interview about COVID-19 symptoms, they could not attend the birth, and patients could contact a different support person to be screened and tested. “All patients and their support persons were informed of their SARS-CoV-2 test results before admission,” the investigators wrote. “Those who tested positive were counseled regarding symptomatology that should prompt medical attention.”
In all, researchers screened 158 patients with a planned delivery, and 155 agreed to undergo COVID-19 testing. Of the 155 women tested, 24 (16%) tested positive for SARS CoV-2 infection. Among 146 support persons who had a negative interview screen and underwent SARS-CoV-2 testing, 14 (10%) tested positive for SARS-CoV-2 infection.
Test results were substantially concordant among patient and support person pairs. “Among patients who tested positive for COVID-19 infection and had a support person present, 11 of 19 (58%) support persons also tested positive for COVID-19 infection,” the authors reported. “Among patients who tested negative for COVID-19 infection and had a support person present, only 3 of 127 (2.4%) support persons tested positive for COVID-19 infection.”
Telephone screening did not identify any of the COVID-19–positive cases. Of the 24 patients with SARS-CoV-2 infection, none of their newborns tested positive at birth.
“Universal testing ... provides a mechanism for more accurate counseling of patients regarding issues such as newborn skin-to-skin contact and breastfeeding,” noted Dr. Bianco and colleagues. At their institution, parents with COVID-19 are instructed to wear a mask and practice proper hand hygiene when caring for their newborns.
Kristina Adams Waldorf, MD, said in an interview that the study by Bianco et al. underscores the high rate of asymptomatic or mildly symptomatic COVID-19 infections detected with universal screening in a hospital at the U.S. epicenter of the pandemic. “Each state and hospital will need to evaluate their own data to determine the value of universal screening for their patient population. In rural parts of America that have yet to see cases, universal screening may not make sense, but these areas are likely to be few and far between. The rest of America will need to quickly get on board with universal screening to protect their labor and delivery staff.”
Testing the partner was a strength of the study. “It is reassuring that when a pregnant woman tested negative for SARS-CoV-2, the rate was very, very low (2.4%) that her partner would test positive. However, it was disconcerting that telephone screening for common symptoms associated with COVID-19 was not very helpful in identifying cases,” said Dr. Waldorf, a professor of obstetrics and gynecology at the University of Washington, Seattle. She was not involved in the study by Bianco et al.
One study author receives payment from the American Board of Obstetrics and Gynecology for serving as a board examiner, receives payment from UpToDate, and serves as an expert witness in malpractice and products liability cases. The other authors did not report any potential conflicts of interest. Dr. Waldorf said she had no relevant financial disclosures.
SOURCE: Bianco A et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003985.
FROM OBSTETRICS & GYNECOLOGY
Whether to test laboring women for SARS-CoV-2 may hinge on regional prevalence
at the time of admission, research published online in Obstetrics & Gynecology suggests.
In Los Angeles, researchers stopped universal testing after none of the first 80 asymptomatic women had positive results. Researchers in Chicago, on the other hand, found a positive rate of approximately 1.6% among 614 asymptomatic patients and continue to test all patients.
“Decisions regarding universal testing need to be made in the context of regional prevalence of COVID-19 infection, with recognition that a ‘one-size-fits-all’ approach is unlikely to be justifiable,” Torri D. Metz, MD,of University of Utah Health in Salt Lake City said in an editorial accompanying research letters that described the experience in Los Angeles and Chicago. “In the setting of low population prevalence of COVID-19 infection or in locations with limited testing availability, deferring universal testing may represent the better part of valor when weighing risks, benefits, economic burden, and unintended consequences of testing for SARS-CoV-2 infection. In high-prevalence regions, universal testing may be a valuable addition to obstetric care that will prevent infections in health care workers and neonates.”
Testing all patients also may provide valuable population-level surveillance, added Dr. Metz, who is an associate professor of obstetrics and gynecology, a maternal-fetal medicine subspecialist, and vice-chair of research in obstetrics and gynecology.
One week of data
After New York hospitals reported an approximately 13% prevalence of SARS-CoV-2 infection among asymptomatic laboring women, Cedars-Sinai Medical Center in Los Angeles changed its policy from testing only women with COVID-19 symptoms to testing all women beginning April 4, 2020. “Data from New York made us very concerned about the possibility of asymptomatic infections among our own pregnant patients,” Mariam Naqvi, MD, a maternal-fetal medicine specialist at Cedars-Sinai Medical Center, said in a news release. “This would have implications for them, their babies, their households, and for the health of our staff caring for them.”
In 1 week, 82 pregnant women admitted to the obstetric unit were tested for SARS-CoV-2 infection. Of two women who reported COVID-19 symptoms, one tested positive for SARS-CoV-2. “Of the remaining 80 asymptomatic women, none tested positive for SARS-CoV-2 infection, and all remained symptom free throughout their hospitalizations,” Dr. Naqvi and colleagues reported. “One asymptomatic patient had an inadequate nasopharyngeal specimen and declined repeat testing.”
Precautions taken during universal testing meant that all members of the treatment team used valuable personal protective equipment. In some cases, mothers and newborns were separated until test results were available.
“We discontinued universal testing after a 7-day period, because we could not justify continued testing of asymptomatic women in the absence of positive test results for SARS-CoV-2 infection,” they noted. “Though universal testing did not yield enough positive results on our obstetric unit to warrant continued testing at this time, our approach may change if local rates of infection increase.”
20 days of testing
In a prospective case series of pregnant women admitted to Northwestern Memorial Hospital in Chicago from April 8 to April 27, 2020, universal testing did detect asymptomatic infections. Women with scheduled admissions were tested 12-36 hours before admission in a drive-through testing center, and women with unscheduled admissions received a test that has a 2- to 3-hour turnaround time. In addition, patients were screened for symptoms such as fever, shortness of breath, cough, sore throat, body aches, chills, new-onset vomiting, diarrhea, loss of taste or smell, and red or painful eyes.
“Asymptomatic women with pending tests were managed on the routine labor floor, but health care workers used personal protective equipment that included a respirator during the second stage of labor and delivery until the test result became available,” wrote Emily S. Miller, MD, MPH, of Northwestern University, Chicago, and colleagues.
During the first 20 days of universal testing, 635 pregnant women were admitted, and 23 (3.6%) tested positive for SARS-CoV-2 infection. Of 21 women with COVID-19 symptoms, 13 (62%) tested positive for SARS-CoV-2 infection. Of 614 women who were asymptomatic, 10 (1.6%) tested positive for SARS-CoV-2. “Our data corroborate the observation that pregnant women with SARS-CoV-2 infection on admission do not seem to be reliably identified using symptom screening alone,” the researchers wrote.
Unintended consequences
Despite a lack of effective treatments for mild to moderate COVID-19, “knowledge of the disease state allows ... health care workers to wear appropriate personal protective equipment to avoid exposure,” Dr. Metz wrote. It also allows “women to be counseled about ways to decrease transmission to neonates” and enables close monitoring of patients with infection.
At the same time, universal testing may have unintended consequences for infected patients, such as stigmatization, separation from the newborn, and delays in care related to health care providers spending more time donning personal protective equipment or changes in medical decision-making regarding cesarean delivery, she emphasized.
“Obstetricians should remain aware of disease prevalence in their communities and consider universal screening of asymptomatic women on an ongoing basis as new ‘hot spots’ for COVID-19 infection are identified,” Dr. Metz concluded.
One of Dr. Naqvi’s coauthors disclosed receiving funds from Contemporary OB/GYN, Keneka, and the American College of Obstetricians and Gynecologists and serving as a board examiner for the American Board of Obstetrics and Gynecology; her coauthors did not report any relevant financial disclosures. Dr. Metz disclosed that money was paid to her institution from Pfizer and GestVision for work related to an RSV vaccination trial and a preeclampsia test, respectively. Dr. Miller and colleagues did not report any potential conflicts of interest.
SOURCES: Naqvi M et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003987; Miller ES et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003983; Metz TD. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003972.
at the time of admission, research published online in Obstetrics & Gynecology suggests.
In Los Angeles, researchers stopped universal testing after none of the first 80 asymptomatic women had positive results. Researchers in Chicago, on the other hand, found a positive rate of approximately 1.6% among 614 asymptomatic patients and continue to test all patients.
“Decisions regarding universal testing need to be made in the context of regional prevalence of COVID-19 infection, with recognition that a ‘one-size-fits-all’ approach is unlikely to be justifiable,” Torri D. Metz, MD,of University of Utah Health in Salt Lake City said in an editorial accompanying research letters that described the experience in Los Angeles and Chicago. “In the setting of low population prevalence of COVID-19 infection or in locations with limited testing availability, deferring universal testing may represent the better part of valor when weighing risks, benefits, economic burden, and unintended consequences of testing for SARS-CoV-2 infection. In high-prevalence regions, universal testing may be a valuable addition to obstetric care that will prevent infections in health care workers and neonates.”
Testing all patients also may provide valuable population-level surveillance, added Dr. Metz, who is an associate professor of obstetrics and gynecology, a maternal-fetal medicine subspecialist, and vice-chair of research in obstetrics and gynecology.
One week of data
After New York hospitals reported an approximately 13% prevalence of SARS-CoV-2 infection among asymptomatic laboring women, Cedars-Sinai Medical Center in Los Angeles changed its policy from testing only women with COVID-19 symptoms to testing all women beginning April 4, 2020. “Data from New York made us very concerned about the possibility of asymptomatic infections among our own pregnant patients,” Mariam Naqvi, MD, a maternal-fetal medicine specialist at Cedars-Sinai Medical Center, said in a news release. “This would have implications for them, their babies, their households, and for the health of our staff caring for them.”
In 1 week, 82 pregnant women admitted to the obstetric unit were tested for SARS-CoV-2 infection. Of two women who reported COVID-19 symptoms, one tested positive for SARS-CoV-2. “Of the remaining 80 asymptomatic women, none tested positive for SARS-CoV-2 infection, and all remained symptom free throughout their hospitalizations,” Dr. Naqvi and colleagues reported. “One asymptomatic patient had an inadequate nasopharyngeal specimen and declined repeat testing.”
Precautions taken during universal testing meant that all members of the treatment team used valuable personal protective equipment. In some cases, mothers and newborns were separated until test results were available.
“We discontinued universal testing after a 7-day period, because we could not justify continued testing of asymptomatic women in the absence of positive test results for SARS-CoV-2 infection,” they noted. “Though universal testing did not yield enough positive results on our obstetric unit to warrant continued testing at this time, our approach may change if local rates of infection increase.”
20 days of testing
In a prospective case series of pregnant women admitted to Northwestern Memorial Hospital in Chicago from April 8 to April 27, 2020, universal testing did detect asymptomatic infections. Women with scheduled admissions were tested 12-36 hours before admission in a drive-through testing center, and women with unscheduled admissions received a test that has a 2- to 3-hour turnaround time. In addition, patients were screened for symptoms such as fever, shortness of breath, cough, sore throat, body aches, chills, new-onset vomiting, diarrhea, loss of taste or smell, and red or painful eyes.
“Asymptomatic women with pending tests were managed on the routine labor floor, but health care workers used personal protective equipment that included a respirator during the second stage of labor and delivery until the test result became available,” wrote Emily S. Miller, MD, MPH, of Northwestern University, Chicago, and colleagues.
During the first 20 days of universal testing, 635 pregnant women were admitted, and 23 (3.6%) tested positive for SARS-CoV-2 infection. Of 21 women with COVID-19 symptoms, 13 (62%) tested positive for SARS-CoV-2 infection. Of 614 women who were asymptomatic, 10 (1.6%) tested positive for SARS-CoV-2. “Our data corroborate the observation that pregnant women with SARS-CoV-2 infection on admission do not seem to be reliably identified using symptom screening alone,” the researchers wrote.
Unintended consequences
Despite a lack of effective treatments for mild to moderate COVID-19, “knowledge of the disease state allows ... health care workers to wear appropriate personal protective equipment to avoid exposure,” Dr. Metz wrote. It also allows “women to be counseled about ways to decrease transmission to neonates” and enables close monitoring of patients with infection.
At the same time, universal testing may have unintended consequences for infected patients, such as stigmatization, separation from the newborn, and delays in care related to health care providers spending more time donning personal protective equipment or changes in medical decision-making regarding cesarean delivery, she emphasized.
“Obstetricians should remain aware of disease prevalence in their communities and consider universal screening of asymptomatic women on an ongoing basis as new ‘hot spots’ for COVID-19 infection are identified,” Dr. Metz concluded.
One of Dr. Naqvi’s coauthors disclosed receiving funds from Contemporary OB/GYN, Keneka, and the American College of Obstetricians and Gynecologists and serving as a board examiner for the American Board of Obstetrics and Gynecology; her coauthors did not report any relevant financial disclosures. Dr. Metz disclosed that money was paid to her institution from Pfizer and GestVision for work related to an RSV vaccination trial and a preeclampsia test, respectively. Dr. Miller and colleagues did not report any potential conflicts of interest.
SOURCES: Naqvi M et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003987; Miller ES et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003983; Metz TD. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003972.
at the time of admission, research published online in Obstetrics & Gynecology suggests.
In Los Angeles, researchers stopped universal testing after none of the first 80 asymptomatic women had positive results. Researchers in Chicago, on the other hand, found a positive rate of approximately 1.6% among 614 asymptomatic patients and continue to test all patients.
“Decisions regarding universal testing need to be made in the context of regional prevalence of COVID-19 infection, with recognition that a ‘one-size-fits-all’ approach is unlikely to be justifiable,” Torri D. Metz, MD,of University of Utah Health in Salt Lake City said in an editorial accompanying research letters that described the experience in Los Angeles and Chicago. “In the setting of low population prevalence of COVID-19 infection or in locations with limited testing availability, deferring universal testing may represent the better part of valor when weighing risks, benefits, economic burden, and unintended consequences of testing for SARS-CoV-2 infection. In high-prevalence regions, universal testing may be a valuable addition to obstetric care that will prevent infections in health care workers and neonates.”
Testing all patients also may provide valuable population-level surveillance, added Dr. Metz, who is an associate professor of obstetrics and gynecology, a maternal-fetal medicine subspecialist, and vice-chair of research in obstetrics and gynecology.
One week of data
After New York hospitals reported an approximately 13% prevalence of SARS-CoV-2 infection among asymptomatic laboring women, Cedars-Sinai Medical Center in Los Angeles changed its policy from testing only women with COVID-19 symptoms to testing all women beginning April 4, 2020. “Data from New York made us very concerned about the possibility of asymptomatic infections among our own pregnant patients,” Mariam Naqvi, MD, a maternal-fetal medicine specialist at Cedars-Sinai Medical Center, said in a news release. “This would have implications for them, their babies, their households, and for the health of our staff caring for them.”
In 1 week, 82 pregnant women admitted to the obstetric unit were tested for SARS-CoV-2 infection. Of two women who reported COVID-19 symptoms, one tested positive for SARS-CoV-2. “Of the remaining 80 asymptomatic women, none tested positive for SARS-CoV-2 infection, and all remained symptom free throughout their hospitalizations,” Dr. Naqvi and colleagues reported. “One asymptomatic patient had an inadequate nasopharyngeal specimen and declined repeat testing.”
Precautions taken during universal testing meant that all members of the treatment team used valuable personal protective equipment. In some cases, mothers and newborns were separated until test results were available.
“We discontinued universal testing after a 7-day period, because we could not justify continued testing of asymptomatic women in the absence of positive test results for SARS-CoV-2 infection,” they noted. “Though universal testing did not yield enough positive results on our obstetric unit to warrant continued testing at this time, our approach may change if local rates of infection increase.”
20 days of testing
In a prospective case series of pregnant women admitted to Northwestern Memorial Hospital in Chicago from April 8 to April 27, 2020, universal testing did detect asymptomatic infections. Women with scheduled admissions were tested 12-36 hours before admission in a drive-through testing center, and women with unscheduled admissions received a test that has a 2- to 3-hour turnaround time. In addition, patients were screened for symptoms such as fever, shortness of breath, cough, sore throat, body aches, chills, new-onset vomiting, diarrhea, loss of taste or smell, and red or painful eyes.
“Asymptomatic women with pending tests were managed on the routine labor floor, but health care workers used personal protective equipment that included a respirator during the second stage of labor and delivery until the test result became available,” wrote Emily S. Miller, MD, MPH, of Northwestern University, Chicago, and colleagues.
During the first 20 days of universal testing, 635 pregnant women were admitted, and 23 (3.6%) tested positive for SARS-CoV-2 infection. Of 21 women with COVID-19 symptoms, 13 (62%) tested positive for SARS-CoV-2 infection. Of 614 women who were asymptomatic, 10 (1.6%) tested positive for SARS-CoV-2. “Our data corroborate the observation that pregnant women with SARS-CoV-2 infection on admission do not seem to be reliably identified using symptom screening alone,” the researchers wrote.
Unintended consequences
Despite a lack of effective treatments for mild to moderate COVID-19, “knowledge of the disease state allows ... health care workers to wear appropriate personal protective equipment to avoid exposure,” Dr. Metz wrote. It also allows “women to be counseled about ways to decrease transmission to neonates” and enables close monitoring of patients with infection.
At the same time, universal testing may have unintended consequences for infected patients, such as stigmatization, separation from the newborn, and delays in care related to health care providers spending more time donning personal protective equipment or changes in medical decision-making regarding cesarean delivery, she emphasized.
“Obstetricians should remain aware of disease prevalence in their communities and consider universal screening of asymptomatic women on an ongoing basis as new ‘hot spots’ for COVID-19 infection are identified,” Dr. Metz concluded.
One of Dr. Naqvi’s coauthors disclosed receiving funds from Contemporary OB/GYN, Keneka, and the American College of Obstetricians and Gynecologists and serving as a board examiner for the American Board of Obstetrics and Gynecology; her coauthors did not report any relevant financial disclosures. Dr. Metz disclosed that money was paid to her institution from Pfizer and GestVision for work related to an RSV vaccination trial and a preeclampsia test, respectively. Dr. Miller and colleagues did not report any potential conflicts of interest.
SOURCES: Naqvi M et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003987; Miller ES et al. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003983; Metz TD. Obstet Gynecol. 2020 May 19. doi: 10.1097/AOG.0000000000003972.
FROM OBSTETRICS & GYNECOLOGY
A long road to recovery: Lung rehab needed after COVID-19
If one word describes Eladio (“Lad”) Braganza, age 77, it’s “tenacious.” For 28 days, he clung to life on a ventilator in a Seattle ICU. Now – after a 46-day hospitalization for SARS-CoV-2 infection – he’s making progress in inpatient rehab, determined to regain function.
“We were not sure if he was going to make it through his first night in the hospital, and for a while after that. We were really prepared that he would not survive his ventilator time,” his daughter, Maria Braganza, said in an interview just 5 days after her father had been transferred to inpatient rehab.
In many ways, Mr. Braganza’s experience is typical of seriously ill COVID-19 patients. Many go from walking and talking to being on a ventilator within 10 hours or less. Mr. Braganza was admitted to the hospital on March 21 and was intubated that day. To keep him on the ventilator, he was heavily sedated and unconscious at times. In the ICU, he experienced bouts of low blood pressure, a pattern of shock that occurs in COVID-19 patients and that does not always respond to fluids.
Doctors have quickly learned to treat these patients aggressively. Many patients in the ICU with COVID-19 develop an inflamed, atypical form of acute respiratory distress syndrome (ARDS), in which the lung’s compliance, or stiffness, does not match the severity of hypoxia. These patients require high levels of oxygen and high ventilator settings. Many develop pneumothorax, or collapsed lungs, because of the high pressures needed to deliver oxygen and the prolonged time on ventilation.
“The vast majority of COVID patients in the ICU have lung disease that is quite severe, much more severe than I have seen in my 20 years of doing this,” said critical care specialist Anna Nolan, MD, of the department of medicine at New York University.
After about 2 weeks, some of these patients can come off the ventilator, or they may undergo a tracheostomy, a hole in the neck through which a tube is placed to deliver oxygen. By this time, many have developed ICU-acquired weakness and muscle wasting. Some may be so debilitated that they cannot walk. Even the respiratory muscles that help them breathe may have weakened as a result of the ventilator doing the work for them.
These patients “get sick very fast, and it takes a long time for them to heal. What’s not really well appreciated is how much rehab and how much recovery time these patients are going to need,” said David Chong, MD. He is medical director of the ICU at New York–Presbyterian Hospital/Columbia University Medical Center, and he has been on the front lines during the COVID-19 surge in New York City.
The road to recovery
Regardless of the cause, many people who have a prolonged stint in the ICU face an even longer convalescence. Still-unanswered questions concern whether recovery time will be longer for those with COVID-19, compared with other illnesses, and whether some of the damage may be permanent. A number of small studies in Hong Kong and China, as well as studies of severe acute respiratory syndrome patients’ recoveries, have promoted speculation about possible long-lasting damage to lungs and other organs from COVID-19.
Yet some of these reports have left out important details about ARDS in COVID-19 patients who also may be most at risk for long-lasting damage. To clear up some of the confusion, the Pulmonary Fibrosis Foundation said on April 6 that some but not all of COVID-19 patients who develop ARDS may go on to develop lung fibrosis – scarring of the lungs – which may be permanent.
“Post-ARDS fibrosis typically is not progressive, but nonetheless can be severe and limiting. The recovery period for post-ARDS fibrosis is approximately 1 year and the residual deficits persist, but generally do not progress,” the foundation noted.
Emerging research on lung damage in COVID-19
Because the pandemic is only a few months in, it’s unclear as yet what the long-term consequences of severe COVID-19 may be. But emerging data are enabling researchers to venture an educated guess about what may happen in the months and years ahead.
The key to understanding the data is knowing that ARDS is a syndrome – the end product of a variety of diseases or insults to the lung. Under the microscope, lung damage from ARDS associated with COVID-19 is indistinguishable from lung damage resulting from other causes, such as vaping, sepsis, or shock caused by a motor vehicle accident, said Sanjay Mukhopadhyay, MD, director of pulmonary pathology at Cleveland Clinic.
Dr. Mukhopadhyay, who specializes in lung pathology, performed one of the first complete autopsies of a COVID-19 patient in the United States. In most autopsy series published to date, he said, the most common lung finding in patients who have died from COVID-19 is diffuse alveolar damage (DAD), a pattern of lung injury seen in ARDS from many other causes.
In DAD, the walls of the alveoli – thinly lined air sacs that facilitate gas exchange in the lung – develop a pink, hyaline membrane composed of damaged cells and plasma proteins that leak from capillaries in the wall of the alveolus. This hyaline membrane gets plastered against the wall of the alveolus and interferes with diffusion of oxygen into the body.
“We know what happens in ARDS from other causes. If you follow people who have been on a ventilator long term, some of their respiratory function goes back to normal,” Dr. Mukhopadhyay said. “But there are other people in whom some degree of respiratory impairment lingers. In these patients, we think the DAD progresses to an organizing stage.”
Organizing pneumonia refers to a family of diseases in which fibroblasts (cells involved in wound healing) arrive and form scar tissue that forms hyaline membranes and fibrin balls (tough proteins) that fill up the alveoli, making gas exchange very difficult.
Also called BOOP (bronchiolitis obliterans organizing pneumonia), this condition is sensitive to steroids. Early aggressive steroid treatment can prevent long-term lung damage. Without steroids, damage can become permanent. A variant of this condition is termed acute fibrinous and organizing pneumonia (AFOP), which is also sensitive to steroids. A report from France demonstrates AFOP in some patients who have died from COVID-19.
The trick is identifying who is developing BOOP and who is not, and beyond that, who might be most amenable to treatment. Use of steroids for patients with certain other problems, such as a bacterial infection on top of COVID-19, could be harmful. David H. Chong, MD, and colleagues at Columbia University Irving Medical Center, New York, are investigating this to determine which COVID-19 patients may benefit from early steroid therapy.
“It’s not clear if there is a predominant histologic type or if we are catching people at different phases of their disease, and therefore we’re seeing different lung pathology,” Dr. Chong said.
He thinks that many patients with severe COVID-19 probably will not develop this pattern of lung scarring. “We’re speculating that lung damage from severe COVID-19 is probably going to behave more like lung damage from regular ARDS, which is often reversible. We think the vast majority of these patients probably have DAD that is similar to most patients with ARDS from other etiologies,” Dr. Chong said.
That would be consistent with information from China. In an April interview with Chinese domestic media, Zhong Nanshan, MD, a pulmonologist at the head of China’s COVID-19 task force, stated that he expects that the lungs in most patients with COVID-19 will gradually recover. He was responding to a widely publicized small study that found evidence of residual lung abnormalities at hospital discharge in most patients (94%, 66/70) who suffered from COVID-19 pneumonia in Wuhan, China, from January to February 2020.
Tough research conditions
Experts say that follow-up in this Chinese study and others to date has not been nearly long enough to allow predictions about lasting lung damage in COVID-19.
They also highlight the tough conditions in which researchers are working. Few autopsies have been performed so far – autopsies take time, extra precautions must be taken to avoid spread of COVID-19, and many patients and families do not consent to an autopsy. Furthermore, autopsy data from patients who died of COVID-19 may not extrapolate to survivors.
“I would not hang my hat on any of the limited data I have seen on autopsies,” said Lina Miyakawa, MD, a critical care and pulmonary medicine specialist at Mount Sinai Hospital in New York City.
“Even though we have answers about how the lungs are damaged at the end stage, this does not elucidate any answers about the earlier lung damage from this disease,” she continued. “It would be informative to have pathological data from the early or transitional phase, to see if that may translate into a treatment modality for COVID-19 patients.”
The problem is that these patients often experience a large amount of sloughing of airway cells, along with mucous plugging (collections of mucous that can block airflow and collapse alveoli). Bronchoscopy, which is used to view the inside of the lungs and sometimes to retrieve biopsy specimens for microscopic evaluation, is too risky for many COVID-19 patients.
In addition, few CT data exist for severely ill COVID-19 patients, who can be so unstable that to transport them to undergo a CT scan can be dangerous, not to mention the concern regarding infection control.
Even if sufficient data did exist, findings from chest x-rays, CTs, pathology studies, and lung function tests do not always match up. A patient who has lung abnormalities on CT may not necessarily have clinically impaired lung function or abnormal pathologic findings, according to Ali Gholamrezanezhad, MD, an emergency radiologist who is with the department of clinical radiology at the University of Southern California, Los Angeles.
Together with colleagues at USC, Dr. Gholamrezanezhad has started a long-term study of patients who were hospitalized with COVID-19. The researchers will follow patients for at least 1 year and will use chest x-ray, chest CT, and exercise testing to evaluate lung recovery over time.
“In the acute phase, we have acute inflammation called ground glass opacities, which usually happen bilaterally in COVID-19. That is totally reversible damage that can return to normal with no scarring,” Dr. Gholamrezanezhad said.
On the basis of data from survivors of other severe pneumonias, such as Middle East respiratory syndrome, SARS-CoV-1 infection, and H1N1 influenza, Gholamrezanezhad thinks that most survivors of COVID-19 will be able to return to work and normal life, although some may show residual lung dysfunction. Age, underlying medical conditions, smoking, length of hospital stay, severity of illness, and quality of treatment may all play a role in how well these people recover.
The lung has a remarkable capacity to recover, he added. Critical illness can destroy type one pneumocytes — the cells that line the alveoli in the lung — but over time, these cells grow back and reline the lungs. When they do, they can also help repair the lungs.
On top of that, the lung has a large functional reserve, and when one section becomes damaged, the rest of the lung can compensate.
However, for some people, total maximum exercise capacity may be affected, he commented.
Mukhopadhyay said: “My feeling is you will get reversal to normal in some patients and you will get long-term fibrosis from ARDS in some survivors. The question is, how many will have complete resolution and how many will have fibrosis? To know the answer, we will need a lot more data than we have now.”
Convalescence of COVID-19 Patients
Like many who become seriously ill with COVID-19, Braganza had underlying medical problems. Before becoming ill, he had had a heart attack and stroke. He walked with a walker and had some age-related memory problems.
Five days after transfer to inpatient rehab, Braganza was walking up and down the hallway using a walker. He was still shaking off the effects of being heavily sedated for so long, and he experienced periods of confusion. When he first came off the ventilator, he mixed up days and nights. Sometimes he did not remember being so sick. A former software engineer, Braganza usually had no problem using technology, but he has had to relearn how to use his phone and connect his iPad to Wi-Fi.
“He is still struggling quite a bit with remembering how to do basic things,” Maria Braganza said. “He has times of being really depressed because he feels like he’s not making progress.”
Doctors are taking note and starting to think about what lies ahead for ICU survivors of COVID-19. They worry about the potential for disease recurrence as well as readmission for other problems, such as other infections and hip fractures.
“As COVID-19 survivors begin to recover, there will be a large burden of chronic critical illness. We expect a significant need for rehabilitation in most ICU survivors of COVID-19,” said Steve Lubinsky, MD, medical director of respiratory care at New York University Langone Tisch Hospital.
Thinking about her father, Maria Braganza brings an extra dimension to these concerns. She thinks about depression, loneliness, and social isolation among older survivors of COVID-19. These problems existed long before the pandemic, but COVID-19 has magnified them.
The rehab staff estimates that Mr. Braganza will spend 10-14 days in their program, but discharge home creates a conundrum. Before becoming ill, Mr. Braganza lived in an independent senior living facility. Now, because of social distancing, he will no longer be able to hang out and have meals with his friends.
“Dad’s already feeling really lonely in the hospital. If we stay on a semipermanent lockdown, will he be able to see the people he loves?” Maria Braganza said. “Even though somebody is older, they have a lot to give and a lot of experience. They just need a little extra to be able to have that life.”
Dr. Nolan, Dr. Chong, Dr. Mukhopadhyay, Dr. Miyakawa, Dr. Gholamrezanezhad, and Dr. Lubinsky report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
If one word describes Eladio (“Lad”) Braganza, age 77, it’s “tenacious.” For 28 days, he clung to life on a ventilator in a Seattle ICU. Now – after a 46-day hospitalization for SARS-CoV-2 infection – he’s making progress in inpatient rehab, determined to regain function.
“We were not sure if he was going to make it through his first night in the hospital, and for a while after that. We were really prepared that he would not survive his ventilator time,” his daughter, Maria Braganza, said in an interview just 5 days after her father had been transferred to inpatient rehab.
In many ways, Mr. Braganza’s experience is typical of seriously ill COVID-19 patients. Many go from walking and talking to being on a ventilator within 10 hours or less. Mr. Braganza was admitted to the hospital on March 21 and was intubated that day. To keep him on the ventilator, he was heavily sedated and unconscious at times. In the ICU, he experienced bouts of low blood pressure, a pattern of shock that occurs in COVID-19 patients and that does not always respond to fluids.
Doctors have quickly learned to treat these patients aggressively. Many patients in the ICU with COVID-19 develop an inflamed, atypical form of acute respiratory distress syndrome (ARDS), in which the lung’s compliance, or stiffness, does not match the severity of hypoxia. These patients require high levels of oxygen and high ventilator settings. Many develop pneumothorax, or collapsed lungs, because of the high pressures needed to deliver oxygen and the prolonged time on ventilation.
“The vast majority of COVID patients in the ICU have lung disease that is quite severe, much more severe than I have seen in my 20 years of doing this,” said critical care specialist Anna Nolan, MD, of the department of medicine at New York University.
After about 2 weeks, some of these patients can come off the ventilator, or they may undergo a tracheostomy, a hole in the neck through which a tube is placed to deliver oxygen. By this time, many have developed ICU-acquired weakness and muscle wasting. Some may be so debilitated that they cannot walk. Even the respiratory muscles that help them breathe may have weakened as a result of the ventilator doing the work for them.
These patients “get sick very fast, and it takes a long time for them to heal. What’s not really well appreciated is how much rehab and how much recovery time these patients are going to need,” said David Chong, MD. He is medical director of the ICU at New York–Presbyterian Hospital/Columbia University Medical Center, and he has been on the front lines during the COVID-19 surge in New York City.
The road to recovery
Regardless of the cause, many people who have a prolonged stint in the ICU face an even longer convalescence. Still-unanswered questions concern whether recovery time will be longer for those with COVID-19, compared with other illnesses, and whether some of the damage may be permanent. A number of small studies in Hong Kong and China, as well as studies of severe acute respiratory syndrome patients’ recoveries, have promoted speculation about possible long-lasting damage to lungs and other organs from COVID-19.
Yet some of these reports have left out important details about ARDS in COVID-19 patients who also may be most at risk for long-lasting damage. To clear up some of the confusion, the Pulmonary Fibrosis Foundation said on April 6 that some but not all of COVID-19 patients who develop ARDS may go on to develop lung fibrosis – scarring of the lungs – which may be permanent.
“Post-ARDS fibrosis typically is not progressive, but nonetheless can be severe and limiting. The recovery period for post-ARDS fibrosis is approximately 1 year and the residual deficits persist, but generally do not progress,” the foundation noted.
Emerging research on lung damage in COVID-19
Because the pandemic is only a few months in, it’s unclear as yet what the long-term consequences of severe COVID-19 may be. But emerging data are enabling researchers to venture an educated guess about what may happen in the months and years ahead.
The key to understanding the data is knowing that ARDS is a syndrome – the end product of a variety of diseases or insults to the lung. Under the microscope, lung damage from ARDS associated with COVID-19 is indistinguishable from lung damage resulting from other causes, such as vaping, sepsis, or shock caused by a motor vehicle accident, said Sanjay Mukhopadhyay, MD, director of pulmonary pathology at Cleveland Clinic.
Dr. Mukhopadhyay, who specializes in lung pathology, performed one of the first complete autopsies of a COVID-19 patient in the United States. In most autopsy series published to date, he said, the most common lung finding in patients who have died from COVID-19 is diffuse alveolar damage (DAD), a pattern of lung injury seen in ARDS from many other causes.
In DAD, the walls of the alveoli – thinly lined air sacs that facilitate gas exchange in the lung – develop a pink, hyaline membrane composed of damaged cells and plasma proteins that leak from capillaries in the wall of the alveolus. This hyaline membrane gets plastered against the wall of the alveolus and interferes with diffusion of oxygen into the body.
“We know what happens in ARDS from other causes. If you follow people who have been on a ventilator long term, some of their respiratory function goes back to normal,” Dr. Mukhopadhyay said. “But there are other people in whom some degree of respiratory impairment lingers. In these patients, we think the DAD progresses to an organizing stage.”
Organizing pneumonia refers to a family of diseases in which fibroblasts (cells involved in wound healing) arrive and form scar tissue that forms hyaline membranes and fibrin balls (tough proteins) that fill up the alveoli, making gas exchange very difficult.
Also called BOOP (bronchiolitis obliterans organizing pneumonia), this condition is sensitive to steroids. Early aggressive steroid treatment can prevent long-term lung damage. Without steroids, damage can become permanent. A variant of this condition is termed acute fibrinous and organizing pneumonia (AFOP), which is also sensitive to steroids. A report from France demonstrates AFOP in some patients who have died from COVID-19.
The trick is identifying who is developing BOOP and who is not, and beyond that, who might be most amenable to treatment. Use of steroids for patients with certain other problems, such as a bacterial infection on top of COVID-19, could be harmful. David H. Chong, MD, and colleagues at Columbia University Irving Medical Center, New York, are investigating this to determine which COVID-19 patients may benefit from early steroid therapy.
“It’s not clear if there is a predominant histologic type or if we are catching people at different phases of their disease, and therefore we’re seeing different lung pathology,” Dr. Chong said.
He thinks that many patients with severe COVID-19 probably will not develop this pattern of lung scarring. “We’re speculating that lung damage from severe COVID-19 is probably going to behave more like lung damage from regular ARDS, which is often reversible. We think the vast majority of these patients probably have DAD that is similar to most patients with ARDS from other etiologies,” Dr. Chong said.
That would be consistent with information from China. In an April interview with Chinese domestic media, Zhong Nanshan, MD, a pulmonologist at the head of China’s COVID-19 task force, stated that he expects that the lungs in most patients with COVID-19 will gradually recover. He was responding to a widely publicized small study that found evidence of residual lung abnormalities at hospital discharge in most patients (94%, 66/70) who suffered from COVID-19 pneumonia in Wuhan, China, from January to February 2020.
Tough research conditions
Experts say that follow-up in this Chinese study and others to date has not been nearly long enough to allow predictions about lasting lung damage in COVID-19.
They also highlight the tough conditions in which researchers are working. Few autopsies have been performed so far – autopsies take time, extra precautions must be taken to avoid spread of COVID-19, and many patients and families do not consent to an autopsy. Furthermore, autopsy data from patients who died of COVID-19 may not extrapolate to survivors.
“I would not hang my hat on any of the limited data I have seen on autopsies,” said Lina Miyakawa, MD, a critical care and pulmonary medicine specialist at Mount Sinai Hospital in New York City.
“Even though we have answers about how the lungs are damaged at the end stage, this does not elucidate any answers about the earlier lung damage from this disease,” she continued. “It would be informative to have pathological data from the early or transitional phase, to see if that may translate into a treatment modality for COVID-19 patients.”
The problem is that these patients often experience a large amount of sloughing of airway cells, along with mucous plugging (collections of mucous that can block airflow and collapse alveoli). Bronchoscopy, which is used to view the inside of the lungs and sometimes to retrieve biopsy specimens for microscopic evaluation, is too risky for many COVID-19 patients.
In addition, few CT data exist for severely ill COVID-19 patients, who can be so unstable that to transport them to undergo a CT scan can be dangerous, not to mention the concern regarding infection control.
Even if sufficient data did exist, findings from chest x-rays, CTs, pathology studies, and lung function tests do not always match up. A patient who has lung abnormalities on CT may not necessarily have clinically impaired lung function or abnormal pathologic findings, according to Ali Gholamrezanezhad, MD, an emergency radiologist who is with the department of clinical radiology at the University of Southern California, Los Angeles.
Together with colleagues at USC, Dr. Gholamrezanezhad has started a long-term study of patients who were hospitalized with COVID-19. The researchers will follow patients for at least 1 year and will use chest x-ray, chest CT, and exercise testing to evaluate lung recovery over time.
“In the acute phase, we have acute inflammation called ground glass opacities, which usually happen bilaterally in COVID-19. That is totally reversible damage that can return to normal with no scarring,” Dr. Gholamrezanezhad said.
On the basis of data from survivors of other severe pneumonias, such as Middle East respiratory syndrome, SARS-CoV-1 infection, and H1N1 influenza, Gholamrezanezhad thinks that most survivors of COVID-19 will be able to return to work and normal life, although some may show residual lung dysfunction. Age, underlying medical conditions, smoking, length of hospital stay, severity of illness, and quality of treatment may all play a role in how well these people recover.
The lung has a remarkable capacity to recover, he added. Critical illness can destroy type one pneumocytes — the cells that line the alveoli in the lung — but over time, these cells grow back and reline the lungs. When they do, they can also help repair the lungs.
On top of that, the lung has a large functional reserve, and when one section becomes damaged, the rest of the lung can compensate.
However, for some people, total maximum exercise capacity may be affected, he commented.
Mukhopadhyay said: “My feeling is you will get reversal to normal in some patients and you will get long-term fibrosis from ARDS in some survivors. The question is, how many will have complete resolution and how many will have fibrosis? To know the answer, we will need a lot more data than we have now.”
Convalescence of COVID-19 Patients
Like many who become seriously ill with COVID-19, Braganza had underlying medical problems. Before becoming ill, he had had a heart attack and stroke. He walked with a walker and had some age-related memory problems.
Five days after transfer to inpatient rehab, Braganza was walking up and down the hallway using a walker. He was still shaking off the effects of being heavily sedated for so long, and he experienced periods of confusion. When he first came off the ventilator, he mixed up days and nights. Sometimes he did not remember being so sick. A former software engineer, Braganza usually had no problem using technology, but he has had to relearn how to use his phone and connect his iPad to Wi-Fi.
“He is still struggling quite a bit with remembering how to do basic things,” Maria Braganza said. “He has times of being really depressed because he feels like he’s not making progress.”
Doctors are taking note and starting to think about what lies ahead for ICU survivors of COVID-19. They worry about the potential for disease recurrence as well as readmission for other problems, such as other infections and hip fractures.
“As COVID-19 survivors begin to recover, there will be a large burden of chronic critical illness. We expect a significant need for rehabilitation in most ICU survivors of COVID-19,” said Steve Lubinsky, MD, medical director of respiratory care at New York University Langone Tisch Hospital.
Thinking about her father, Maria Braganza brings an extra dimension to these concerns. She thinks about depression, loneliness, and social isolation among older survivors of COVID-19. These problems existed long before the pandemic, but COVID-19 has magnified them.
The rehab staff estimates that Mr. Braganza will spend 10-14 days in their program, but discharge home creates a conundrum. Before becoming ill, Mr. Braganza lived in an independent senior living facility. Now, because of social distancing, he will no longer be able to hang out and have meals with his friends.
“Dad’s already feeling really lonely in the hospital. If we stay on a semipermanent lockdown, will he be able to see the people he loves?” Maria Braganza said. “Even though somebody is older, they have a lot to give and a lot of experience. They just need a little extra to be able to have that life.”
Dr. Nolan, Dr. Chong, Dr. Mukhopadhyay, Dr. Miyakawa, Dr. Gholamrezanezhad, and Dr. Lubinsky report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
If one word describes Eladio (“Lad”) Braganza, age 77, it’s “tenacious.” For 28 days, he clung to life on a ventilator in a Seattle ICU. Now – after a 46-day hospitalization for SARS-CoV-2 infection – he’s making progress in inpatient rehab, determined to regain function.
“We were not sure if he was going to make it through his first night in the hospital, and for a while after that. We were really prepared that he would not survive his ventilator time,” his daughter, Maria Braganza, said in an interview just 5 days after her father had been transferred to inpatient rehab.
In many ways, Mr. Braganza’s experience is typical of seriously ill COVID-19 patients. Many go from walking and talking to being on a ventilator within 10 hours or less. Mr. Braganza was admitted to the hospital on March 21 and was intubated that day. To keep him on the ventilator, he was heavily sedated and unconscious at times. In the ICU, he experienced bouts of low blood pressure, a pattern of shock that occurs in COVID-19 patients and that does not always respond to fluids.
Doctors have quickly learned to treat these patients aggressively. Many patients in the ICU with COVID-19 develop an inflamed, atypical form of acute respiratory distress syndrome (ARDS), in which the lung’s compliance, or stiffness, does not match the severity of hypoxia. These patients require high levels of oxygen and high ventilator settings. Many develop pneumothorax, or collapsed lungs, because of the high pressures needed to deliver oxygen and the prolonged time on ventilation.
“The vast majority of COVID patients in the ICU have lung disease that is quite severe, much more severe than I have seen in my 20 years of doing this,” said critical care specialist Anna Nolan, MD, of the department of medicine at New York University.
After about 2 weeks, some of these patients can come off the ventilator, or they may undergo a tracheostomy, a hole in the neck through which a tube is placed to deliver oxygen. By this time, many have developed ICU-acquired weakness and muscle wasting. Some may be so debilitated that they cannot walk. Even the respiratory muscles that help them breathe may have weakened as a result of the ventilator doing the work for them.
These patients “get sick very fast, and it takes a long time for them to heal. What’s not really well appreciated is how much rehab and how much recovery time these patients are going to need,” said David Chong, MD. He is medical director of the ICU at New York–Presbyterian Hospital/Columbia University Medical Center, and he has been on the front lines during the COVID-19 surge in New York City.
The road to recovery
Regardless of the cause, many people who have a prolonged stint in the ICU face an even longer convalescence. Still-unanswered questions concern whether recovery time will be longer for those with COVID-19, compared with other illnesses, and whether some of the damage may be permanent. A number of small studies in Hong Kong and China, as well as studies of severe acute respiratory syndrome patients’ recoveries, have promoted speculation about possible long-lasting damage to lungs and other organs from COVID-19.
Yet some of these reports have left out important details about ARDS in COVID-19 patients who also may be most at risk for long-lasting damage. To clear up some of the confusion, the Pulmonary Fibrosis Foundation said on April 6 that some but not all of COVID-19 patients who develop ARDS may go on to develop lung fibrosis – scarring of the lungs – which may be permanent.
“Post-ARDS fibrosis typically is not progressive, but nonetheless can be severe and limiting. The recovery period for post-ARDS fibrosis is approximately 1 year and the residual deficits persist, but generally do not progress,” the foundation noted.
Emerging research on lung damage in COVID-19
Because the pandemic is only a few months in, it’s unclear as yet what the long-term consequences of severe COVID-19 may be. But emerging data are enabling researchers to venture an educated guess about what may happen in the months and years ahead.
The key to understanding the data is knowing that ARDS is a syndrome – the end product of a variety of diseases or insults to the lung. Under the microscope, lung damage from ARDS associated with COVID-19 is indistinguishable from lung damage resulting from other causes, such as vaping, sepsis, or shock caused by a motor vehicle accident, said Sanjay Mukhopadhyay, MD, director of pulmonary pathology at Cleveland Clinic.
Dr. Mukhopadhyay, who specializes in lung pathology, performed one of the first complete autopsies of a COVID-19 patient in the United States. In most autopsy series published to date, he said, the most common lung finding in patients who have died from COVID-19 is diffuse alveolar damage (DAD), a pattern of lung injury seen in ARDS from many other causes.
In DAD, the walls of the alveoli – thinly lined air sacs that facilitate gas exchange in the lung – develop a pink, hyaline membrane composed of damaged cells and plasma proteins that leak from capillaries in the wall of the alveolus. This hyaline membrane gets plastered against the wall of the alveolus and interferes with diffusion of oxygen into the body.
“We know what happens in ARDS from other causes. If you follow people who have been on a ventilator long term, some of their respiratory function goes back to normal,” Dr. Mukhopadhyay said. “But there are other people in whom some degree of respiratory impairment lingers. In these patients, we think the DAD progresses to an organizing stage.”
Organizing pneumonia refers to a family of diseases in which fibroblasts (cells involved in wound healing) arrive and form scar tissue that forms hyaline membranes and fibrin balls (tough proteins) that fill up the alveoli, making gas exchange very difficult.
Also called BOOP (bronchiolitis obliterans organizing pneumonia), this condition is sensitive to steroids. Early aggressive steroid treatment can prevent long-term lung damage. Without steroids, damage can become permanent. A variant of this condition is termed acute fibrinous and organizing pneumonia (AFOP), which is also sensitive to steroids. A report from France demonstrates AFOP in some patients who have died from COVID-19.
The trick is identifying who is developing BOOP and who is not, and beyond that, who might be most amenable to treatment. Use of steroids for patients with certain other problems, such as a bacterial infection on top of COVID-19, could be harmful. David H. Chong, MD, and colleagues at Columbia University Irving Medical Center, New York, are investigating this to determine which COVID-19 patients may benefit from early steroid therapy.
“It’s not clear if there is a predominant histologic type or if we are catching people at different phases of their disease, and therefore we’re seeing different lung pathology,” Dr. Chong said.
He thinks that many patients with severe COVID-19 probably will not develop this pattern of lung scarring. “We’re speculating that lung damage from severe COVID-19 is probably going to behave more like lung damage from regular ARDS, which is often reversible. We think the vast majority of these patients probably have DAD that is similar to most patients with ARDS from other etiologies,” Dr. Chong said.
That would be consistent with information from China. In an April interview with Chinese domestic media, Zhong Nanshan, MD, a pulmonologist at the head of China’s COVID-19 task force, stated that he expects that the lungs in most patients with COVID-19 will gradually recover. He was responding to a widely publicized small study that found evidence of residual lung abnormalities at hospital discharge in most patients (94%, 66/70) who suffered from COVID-19 pneumonia in Wuhan, China, from January to February 2020.
Tough research conditions
Experts say that follow-up in this Chinese study and others to date has not been nearly long enough to allow predictions about lasting lung damage in COVID-19.
They also highlight the tough conditions in which researchers are working. Few autopsies have been performed so far – autopsies take time, extra precautions must be taken to avoid spread of COVID-19, and many patients and families do not consent to an autopsy. Furthermore, autopsy data from patients who died of COVID-19 may not extrapolate to survivors.
“I would not hang my hat on any of the limited data I have seen on autopsies,” said Lina Miyakawa, MD, a critical care and pulmonary medicine specialist at Mount Sinai Hospital in New York City.
“Even though we have answers about how the lungs are damaged at the end stage, this does not elucidate any answers about the earlier lung damage from this disease,” she continued. “It would be informative to have pathological data from the early or transitional phase, to see if that may translate into a treatment modality for COVID-19 patients.”
The problem is that these patients often experience a large amount of sloughing of airway cells, along with mucous plugging (collections of mucous that can block airflow and collapse alveoli). Bronchoscopy, which is used to view the inside of the lungs and sometimes to retrieve biopsy specimens for microscopic evaluation, is too risky for many COVID-19 patients.
In addition, few CT data exist for severely ill COVID-19 patients, who can be so unstable that to transport them to undergo a CT scan can be dangerous, not to mention the concern regarding infection control.
Even if sufficient data did exist, findings from chest x-rays, CTs, pathology studies, and lung function tests do not always match up. A patient who has lung abnormalities on CT may not necessarily have clinically impaired lung function or abnormal pathologic findings, according to Ali Gholamrezanezhad, MD, an emergency radiologist who is with the department of clinical radiology at the University of Southern California, Los Angeles.
Together with colleagues at USC, Dr. Gholamrezanezhad has started a long-term study of patients who were hospitalized with COVID-19. The researchers will follow patients for at least 1 year and will use chest x-ray, chest CT, and exercise testing to evaluate lung recovery over time.
“In the acute phase, we have acute inflammation called ground glass opacities, which usually happen bilaterally in COVID-19. That is totally reversible damage that can return to normal with no scarring,” Dr. Gholamrezanezhad said.
On the basis of data from survivors of other severe pneumonias, such as Middle East respiratory syndrome, SARS-CoV-1 infection, and H1N1 influenza, Gholamrezanezhad thinks that most survivors of COVID-19 will be able to return to work and normal life, although some may show residual lung dysfunction. Age, underlying medical conditions, smoking, length of hospital stay, severity of illness, and quality of treatment may all play a role in how well these people recover.
The lung has a remarkable capacity to recover, he added. Critical illness can destroy type one pneumocytes — the cells that line the alveoli in the lung — but over time, these cells grow back and reline the lungs. When they do, they can also help repair the lungs.
On top of that, the lung has a large functional reserve, and when one section becomes damaged, the rest of the lung can compensate.
However, for some people, total maximum exercise capacity may be affected, he commented.
Mukhopadhyay said: “My feeling is you will get reversal to normal in some patients and you will get long-term fibrosis from ARDS in some survivors. The question is, how many will have complete resolution and how many will have fibrosis? To know the answer, we will need a lot more data than we have now.”
Convalescence of COVID-19 Patients
Like many who become seriously ill with COVID-19, Braganza had underlying medical problems. Before becoming ill, he had had a heart attack and stroke. He walked with a walker and had some age-related memory problems.
Five days after transfer to inpatient rehab, Braganza was walking up and down the hallway using a walker. He was still shaking off the effects of being heavily sedated for so long, and he experienced periods of confusion. When he first came off the ventilator, he mixed up days and nights. Sometimes he did not remember being so sick. A former software engineer, Braganza usually had no problem using technology, but he has had to relearn how to use his phone and connect his iPad to Wi-Fi.
“He is still struggling quite a bit with remembering how to do basic things,” Maria Braganza said. “He has times of being really depressed because he feels like he’s not making progress.”
Doctors are taking note and starting to think about what lies ahead for ICU survivors of COVID-19. They worry about the potential for disease recurrence as well as readmission for other problems, such as other infections and hip fractures.
“As COVID-19 survivors begin to recover, there will be a large burden of chronic critical illness. We expect a significant need for rehabilitation in most ICU survivors of COVID-19,” said Steve Lubinsky, MD, medical director of respiratory care at New York University Langone Tisch Hospital.
Thinking about her father, Maria Braganza brings an extra dimension to these concerns. She thinks about depression, loneliness, and social isolation among older survivors of COVID-19. These problems existed long before the pandemic, but COVID-19 has magnified them.
The rehab staff estimates that Mr. Braganza will spend 10-14 days in their program, but discharge home creates a conundrum. Before becoming ill, Mr. Braganza lived in an independent senior living facility. Now, because of social distancing, he will no longer be able to hang out and have meals with his friends.
“Dad’s already feeling really lonely in the hospital. If we stay on a semipermanent lockdown, will he be able to see the people he loves?” Maria Braganza said. “Even though somebody is older, they have a lot to give and a lot of experience. They just need a little extra to be able to have that life.”
Dr. Nolan, Dr. Chong, Dr. Mukhopadhyay, Dr. Miyakawa, Dr. Gholamrezanezhad, and Dr. Lubinsky report no relevant financial relationships.
A version of this article first appeared on Medscape.com.