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Mitochondrial DNA predicts survival in pediatric acute myeloid leukemia
Mitochondrial DNA (mtDNA) copy number alterations are known to occur in acute myeloid leukemia (AML), however their biological significance has not been well studied. Pediatric AML has a distinct biology, different from adults, and with heterogeneous clinical outcomes, the biological basis of which are not well understood, according to researchers Shilpi Chaudhary, PhD, of the All India Institute of Medical Sciences, New Delhi, and colleagues.
Their analysis of 123 pediatric patients with AML found that mtDNA copy number was an independent predictor of aggressive disease, lower event-free survival, and overall survival, according to a report published in Mitochondrion.
In an attempt to find the biological factors involved in the increased mtDNA copy numbers and their effect on the development and aggressiveness of pediatric AML, the researchers studied the regulation and significance of mtDNA copy number in pediatric AML patients using quantitative real time–polymerase chain reaction, as well as in vitro studies. For patients, results were correlated with clinical outcomes.
Mitochondrial biogenesis genes (TFAM, POLG, POLRMT) and two regulator of mitochondrial biogenesis, MYC and PGC1A, were also assessed, according to Dr. Chaudhary and colleagues.
Predictive results
MtDNA copy number was significantly higher in patients, compared with controls (P < .001) and was found to be an independent predictor of aggressive disease (P = .006), lower event-free survival (P = .033), and overall survival (P = .007).
TFAM, POLG & POLRMT and ND3 were also found to be significantly up-regulated in patients, compared with controls as was the expression of the mitochondrial biogenesis regulator MYC (P < .001). However, correlation analysis showed that mtDNA copy number was not associated with the expression of these genes.
In contrast, PGC1A expression was not significantly different in patients, compared with controls overall, although there was a subset of patients whose PGC1A expression was extremely high, according to the researchers.
Importantly, however, in the subset of patients with high PGC1A expression (n = 28), mtDNA copy number had a positive correlation with PGC1A expression (P = .013). On the other hand, among patients with low MYC expression (n = 27), there was no correlation of mtDNA copy number with either PGC1A or MYC expression.
These results were corroborated in in vitro studies, where treatment with the inhibitor tigecycline led to a significant decrease in expression of MYC (P < .001), TFAM (P = .037) and ND3 (P = .010) but resulted in no significant change in mtDNA copy number (P = .23) or expression of PGC1A (P = .10).
Therapeutic candidate?
In contrast to the case of MYC, in vitro PGC1A inhibition significantly reduced mtDNA copy number in along with expression of TFAM and even expression of POLG and POLRMT at higher concentration.
“This observation is in line with our finding in patient samples as well that PGC1A expression positively correlated with mtDNA copy number, more so in patients with higher PGC1A expression,” the researchers stated.
“This makes it plausible to infer that PGC1A may have a possible role in enhancing mtDNA copy number in AML patients, likely independent of MYC,” they added. “Therefore, a strategy of designing therapeutics using already approved inhibitors targeting PGC1A may be an exciting area of therapeutic intervention.”
The authors reported that they have no competing financial conflicts of interests.
Mitochondrial DNA (mtDNA) copy number alterations are known to occur in acute myeloid leukemia (AML), however their biological significance has not been well studied. Pediatric AML has a distinct biology, different from adults, and with heterogeneous clinical outcomes, the biological basis of which are not well understood, according to researchers Shilpi Chaudhary, PhD, of the All India Institute of Medical Sciences, New Delhi, and colleagues.
Their analysis of 123 pediatric patients with AML found that mtDNA copy number was an independent predictor of aggressive disease, lower event-free survival, and overall survival, according to a report published in Mitochondrion.
In an attempt to find the biological factors involved in the increased mtDNA copy numbers and their effect on the development and aggressiveness of pediatric AML, the researchers studied the regulation and significance of mtDNA copy number in pediatric AML patients using quantitative real time–polymerase chain reaction, as well as in vitro studies. For patients, results were correlated with clinical outcomes.
Mitochondrial biogenesis genes (TFAM, POLG, POLRMT) and two regulator of mitochondrial biogenesis, MYC and PGC1A, were also assessed, according to Dr. Chaudhary and colleagues.
Predictive results
MtDNA copy number was significantly higher in patients, compared with controls (P < .001) and was found to be an independent predictor of aggressive disease (P = .006), lower event-free survival (P = .033), and overall survival (P = .007).
TFAM, POLG & POLRMT and ND3 were also found to be significantly up-regulated in patients, compared with controls as was the expression of the mitochondrial biogenesis regulator MYC (P < .001). However, correlation analysis showed that mtDNA copy number was not associated with the expression of these genes.
In contrast, PGC1A expression was not significantly different in patients, compared with controls overall, although there was a subset of patients whose PGC1A expression was extremely high, according to the researchers.
Importantly, however, in the subset of patients with high PGC1A expression (n = 28), mtDNA copy number had a positive correlation with PGC1A expression (P = .013). On the other hand, among patients with low MYC expression (n = 27), there was no correlation of mtDNA copy number with either PGC1A or MYC expression.
These results were corroborated in in vitro studies, where treatment with the inhibitor tigecycline led to a significant decrease in expression of MYC (P < .001), TFAM (P = .037) and ND3 (P = .010) but resulted in no significant change in mtDNA copy number (P = .23) or expression of PGC1A (P = .10).
Therapeutic candidate?
In contrast to the case of MYC, in vitro PGC1A inhibition significantly reduced mtDNA copy number in along with expression of TFAM and even expression of POLG and POLRMT at higher concentration.
“This observation is in line with our finding in patient samples as well that PGC1A expression positively correlated with mtDNA copy number, more so in patients with higher PGC1A expression,” the researchers stated.
“This makes it plausible to infer that PGC1A may have a possible role in enhancing mtDNA copy number in AML patients, likely independent of MYC,” they added. “Therefore, a strategy of designing therapeutics using already approved inhibitors targeting PGC1A may be an exciting area of therapeutic intervention.”
The authors reported that they have no competing financial conflicts of interests.
Mitochondrial DNA (mtDNA) copy number alterations are known to occur in acute myeloid leukemia (AML), however their biological significance has not been well studied. Pediatric AML has a distinct biology, different from adults, and with heterogeneous clinical outcomes, the biological basis of which are not well understood, according to researchers Shilpi Chaudhary, PhD, of the All India Institute of Medical Sciences, New Delhi, and colleagues.
Their analysis of 123 pediatric patients with AML found that mtDNA copy number was an independent predictor of aggressive disease, lower event-free survival, and overall survival, according to a report published in Mitochondrion.
In an attempt to find the biological factors involved in the increased mtDNA copy numbers and their effect on the development and aggressiveness of pediatric AML, the researchers studied the regulation and significance of mtDNA copy number in pediatric AML patients using quantitative real time–polymerase chain reaction, as well as in vitro studies. For patients, results were correlated with clinical outcomes.
Mitochondrial biogenesis genes (TFAM, POLG, POLRMT) and two regulator of mitochondrial biogenesis, MYC and PGC1A, were also assessed, according to Dr. Chaudhary and colleagues.
Predictive results
MtDNA copy number was significantly higher in patients, compared with controls (P < .001) and was found to be an independent predictor of aggressive disease (P = .006), lower event-free survival (P = .033), and overall survival (P = .007).
TFAM, POLG & POLRMT and ND3 were also found to be significantly up-regulated in patients, compared with controls as was the expression of the mitochondrial biogenesis regulator MYC (P < .001). However, correlation analysis showed that mtDNA copy number was not associated with the expression of these genes.
In contrast, PGC1A expression was not significantly different in patients, compared with controls overall, although there was a subset of patients whose PGC1A expression was extremely high, according to the researchers.
Importantly, however, in the subset of patients with high PGC1A expression (n = 28), mtDNA copy number had a positive correlation with PGC1A expression (P = .013). On the other hand, among patients with low MYC expression (n = 27), there was no correlation of mtDNA copy number with either PGC1A or MYC expression.
These results were corroborated in in vitro studies, where treatment with the inhibitor tigecycline led to a significant decrease in expression of MYC (P < .001), TFAM (P = .037) and ND3 (P = .010) but resulted in no significant change in mtDNA copy number (P = .23) or expression of PGC1A (P = .10).
Therapeutic candidate?
In contrast to the case of MYC, in vitro PGC1A inhibition significantly reduced mtDNA copy number in along with expression of TFAM and even expression of POLG and POLRMT at higher concentration.
“This observation is in line with our finding in patient samples as well that PGC1A expression positively correlated with mtDNA copy number, more so in patients with higher PGC1A expression,” the researchers stated.
“This makes it plausible to infer that PGC1A may have a possible role in enhancing mtDNA copy number in AML patients, likely independent of MYC,” they added. “Therefore, a strategy of designing therapeutics using already approved inhibitors targeting PGC1A may be an exciting area of therapeutic intervention.”
The authors reported that they have no competing financial conflicts of interests.
FROM MITOCHONDRION
Gene therapy shows promise for Sanfilippo syndrome
. Most of the benefit from the treatment came in patients who began treatment at younger age, but comparisons to natural history controls showed profound improvement among many recipients, some of whom attained normal developmental trajectories.
The study was presented at the American Academy of Neurology’s 2021 annual meeting by Kevin Flanigan, MD, an attending neurologist at Nationwide Children’s Hospital in Columbus, Ohio. He highlighted the improved developmental outcomes. “There’s been nothing shown to change the cognitive pathway of the disease. This is the first time it’s been seen as a treatment effect,” Dr. Flanigan said during a follow-up Q&A session.
The therapy was delivered using an adeno-associated virus-9 (AAV-9) vector, which led one questioner to ask about potential safety concerns, since AAV-associated risks date back to the death of Jesse Gelsinger in 1999. “There is concern about AAV therapies related to immune responses to potentially complement-mediated activation and thrombocytopenic syndrome, which has led to clinical holds on some other AAV-9 products related to muscular dystrophies. We’ve not seen signals of anything reminiscent of that, and we’re at AAV-9 dosages that are quite similar to what’s been used elsewhere in the field,” said Dr. Flanigan.
The results have him optimistic about the therapy. “I do think if it continues to be increasing divergent from the natural history, it will be questionable as to whether a subsequent trial will be necessary for this. That’s a decision for the [Food and Drug Administration] and the company to decide. Each observation point that goes by, each patient treated, and each time we get more data, I get more and more confident. It’s really gratifying to watch,” said Dr. Flanigan.
The study confirms the potential of gene replacement therapy autosomal recessive conditions, according to Nicholas Johnson, MD, associate professor of neurology at Virginia Commonwealth University, Richmond, as well as a fellow of the American Academy of Neurology. “Where the genetic problem is loss of gene function, the ability to replace that gene using a viral approach is going to be transformative across the board for many of these different conditions, including Sanfilippo syndrome,” said Dr. Johnson, who attended the session but was not involved in the research.
Toxicity could remain an issue, even in the absence of AAV-based safety concerns. “The rate limiting step in terms of gene replacement therapy development likely relates to the ability to provide those therapies to larger adults, because many approaches are weight based and it’s unclear what the upper limit of toxicity would be for adults,” said Dr. Johnson.
Transpher A study results
Dr. Flanigan presented results from Transpher A, a phase 1/2 clinical trial that has enrolled 20 patients to date in three cohorts: Cohort 1, with 3 patients, received 5 x 1,012 vg/kg, and had a mean follow-up of 58 months; cohort 2, with 3 patients, received 1 x 1,013 vg/kg, and had a mean follow-up of 49 months; and cohort 3, with 14 patients, received 3 x 1,013 vg/kg, with a mean follow-up of 24 months. Included patients ranged from birth to age 2, or older than age 2 with a development quotient of 60 or higher on the Bayley Scale.
Dr. Flanigan showed a plot of developmental progress compared with natural history controls, which showed that patients treated before age 2 or with a developmental quotient of 60 or higher had improved outcomes compared to other patients in the high dose cohort. They continued to show normal developmental progression at 30-36 months post treatment, at a time when the natural history data suggested they would suffer cognitive decline. Two years after administration, this group had cerebral spinal fluid levels of heparan sulfate that fell below the lower limit of detection. Patients in the high-dose cohort had normalized CSF levels of GM2 and GM3 gangliosides, and there were reductions in plasma heparan sulfate and urinary glycosaminoglycans. There was also a sustained decrease in liver volume.
The highest dose group was originally given to older patients, and most were similar to the natural history cohort, though some did stabilize. “More compellingly, patients (in the high-dose group) who were treated younger actually showed continued increase in development. One individual follows the normal development quotient line, and we would say that these are really quite distinct from what we typically see in patients,” said Dr. Flanigan.
The treatment was well tolerated. There were no deaths or treatment-related serious adverse events, and no clinically-significant adverse events within the first 5 years of follow-up.
The study was funded by Abeona Therapeutics. Dr. Flanigan has been on advisory boards for Apic Bio and 4D Molecular Therapeutics, consulted for Encoded Therapeutics, and has received royalties from Audentes Therapeutics. Dr. Flanigan has received funding from and been a consultant for Avidity.
. Most of the benefit from the treatment came in patients who began treatment at younger age, but comparisons to natural history controls showed profound improvement among many recipients, some of whom attained normal developmental trajectories.
The study was presented at the American Academy of Neurology’s 2021 annual meeting by Kevin Flanigan, MD, an attending neurologist at Nationwide Children’s Hospital in Columbus, Ohio. He highlighted the improved developmental outcomes. “There’s been nothing shown to change the cognitive pathway of the disease. This is the first time it’s been seen as a treatment effect,” Dr. Flanigan said during a follow-up Q&A session.
The therapy was delivered using an adeno-associated virus-9 (AAV-9) vector, which led one questioner to ask about potential safety concerns, since AAV-associated risks date back to the death of Jesse Gelsinger in 1999. “There is concern about AAV therapies related to immune responses to potentially complement-mediated activation and thrombocytopenic syndrome, which has led to clinical holds on some other AAV-9 products related to muscular dystrophies. We’ve not seen signals of anything reminiscent of that, and we’re at AAV-9 dosages that are quite similar to what’s been used elsewhere in the field,” said Dr. Flanigan.
The results have him optimistic about the therapy. “I do think if it continues to be increasing divergent from the natural history, it will be questionable as to whether a subsequent trial will be necessary for this. That’s a decision for the [Food and Drug Administration] and the company to decide. Each observation point that goes by, each patient treated, and each time we get more data, I get more and more confident. It’s really gratifying to watch,” said Dr. Flanigan.
The study confirms the potential of gene replacement therapy autosomal recessive conditions, according to Nicholas Johnson, MD, associate professor of neurology at Virginia Commonwealth University, Richmond, as well as a fellow of the American Academy of Neurology. “Where the genetic problem is loss of gene function, the ability to replace that gene using a viral approach is going to be transformative across the board for many of these different conditions, including Sanfilippo syndrome,” said Dr. Johnson, who attended the session but was not involved in the research.
Toxicity could remain an issue, even in the absence of AAV-based safety concerns. “The rate limiting step in terms of gene replacement therapy development likely relates to the ability to provide those therapies to larger adults, because many approaches are weight based and it’s unclear what the upper limit of toxicity would be for adults,” said Dr. Johnson.
Transpher A study results
Dr. Flanigan presented results from Transpher A, a phase 1/2 clinical trial that has enrolled 20 patients to date in three cohorts: Cohort 1, with 3 patients, received 5 x 1,012 vg/kg, and had a mean follow-up of 58 months; cohort 2, with 3 patients, received 1 x 1,013 vg/kg, and had a mean follow-up of 49 months; and cohort 3, with 14 patients, received 3 x 1,013 vg/kg, with a mean follow-up of 24 months. Included patients ranged from birth to age 2, or older than age 2 with a development quotient of 60 or higher on the Bayley Scale.
Dr. Flanigan showed a plot of developmental progress compared with natural history controls, which showed that patients treated before age 2 or with a developmental quotient of 60 or higher had improved outcomes compared to other patients in the high dose cohort. They continued to show normal developmental progression at 30-36 months post treatment, at a time when the natural history data suggested they would suffer cognitive decline. Two years after administration, this group had cerebral spinal fluid levels of heparan sulfate that fell below the lower limit of detection. Patients in the high-dose cohort had normalized CSF levels of GM2 and GM3 gangliosides, and there were reductions in plasma heparan sulfate and urinary glycosaminoglycans. There was also a sustained decrease in liver volume.
The highest dose group was originally given to older patients, and most were similar to the natural history cohort, though some did stabilize. “More compellingly, patients (in the high-dose group) who were treated younger actually showed continued increase in development. One individual follows the normal development quotient line, and we would say that these are really quite distinct from what we typically see in patients,” said Dr. Flanigan.
The treatment was well tolerated. There were no deaths or treatment-related serious adverse events, and no clinically-significant adverse events within the first 5 years of follow-up.
The study was funded by Abeona Therapeutics. Dr. Flanigan has been on advisory boards for Apic Bio and 4D Molecular Therapeutics, consulted for Encoded Therapeutics, and has received royalties from Audentes Therapeutics. Dr. Flanigan has received funding from and been a consultant for Avidity.
. Most of the benefit from the treatment came in patients who began treatment at younger age, but comparisons to natural history controls showed profound improvement among many recipients, some of whom attained normal developmental trajectories.
The study was presented at the American Academy of Neurology’s 2021 annual meeting by Kevin Flanigan, MD, an attending neurologist at Nationwide Children’s Hospital in Columbus, Ohio. He highlighted the improved developmental outcomes. “There’s been nothing shown to change the cognitive pathway of the disease. This is the first time it’s been seen as a treatment effect,” Dr. Flanigan said during a follow-up Q&A session.
The therapy was delivered using an adeno-associated virus-9 (AAV-9) vector, which led one questioner to ask about potential safety concerns, since AAV-associated risks date back to the death of Jesse Gelsinger in 1999. “There is concern about AAV therapies related to immune responses to potentially complement-mediated activation and thrombocytopenic syndrome, which has led to clinical holds on some other AAV-9 products related to muscular dystrophies. We’ve not seen signals of anything reminiscent of that, and we’re at AAV-9 dosages that are quite similar to what’s been used elsewhere in the field,” said Dr. Flanigan.
The results have him optimistic about the therapy. “I do think if it continues to be increasing divergent from the natural history, it will be questionable as to whether a subsequent trial will be necessary for this. That’s a decision for the [Food and Drug Administration] and the company to decide. Each observation point that goes by, each patient treated, and each time we get more data, I get more and more confident. It’s really gratifying to watch,” said Dr. Flanigan.
The study confirms the potential of gene replacement therapy autosomal recessive conditions, according to Nicholas Johnson, MD, associate professor of neurology at Virginia Commonwealth University, Richmond, as well as a fellow of the American Academy of Neurology. “Where the genetic problem is loss of gene function, the ability to replace that gene using a viral approach is going to be transformative across the board for many of these different conditions, including Sanfilippo syndrome,” said Dr. Johnson, who attended the session but was not involved in the research.
Toxicity could remain an issue, even in the absence of AAV-based safety concerns. “The rate limiting step in terms of gene replacement therapy development likely relates to the ability to provide those therapies to larger adults, because many approaches are weight based and it’s unclear what the upper limit of toxicity would be for adults,” said Dr. Johnson.
Transpher A study results
Dr. Flanigan presented results from Transpher A, a phase 1/2 clinical trial that has enrolled 20 patients to date in three cohorts: Cohort 1, with 3 patients, received 5 x 1,012 vg/kg, and had a mean follow-up of 58 months; cohort 2, with 3 patients, received 1 x 1,013 vg/kg, and had a mean follow-up of 49 months; and cohort 3, with 14 patients, received 3 x 1,013 vg/kg, with a mean follow-up of 24 months. Included patients ranged from birth to age 2, or older than age 2 with a development quotient of 60 or higher on the Bayley Scale.
Dr. Flanigan showed a plot of developmental progress compared with natural history controls, which showed that patients treated before age 2 or with a developmental quotient of 60 or higher had improved outcomes compared to other patients in the high dose cohort. They continued to show normal developmental progression at 30-36 months post treatment, at a time when the natural history data suggested they would suffer cognitive decline. Two years after administration, this group had cerebral spinal fluid levels of heparan sulfate that fell below the lower limit of detection. Patients in the high-dose cohort had normalized CSF levels of GM2 and GM3 gangliosides, and there were reductions in plasma heparan sulfate and urinary glycosaminoglycans. There was also a sustained decrease in liver volume.
The highest dose group was originally given to older patients, and most were similar to the natural history cohort, though some did stabilize. “More compellingly, patients (in the high-dose group) who were treated younger actually showed continued increase in development. One individual follows the normal development quotient line, and we would say that these are really quite distinct from what we typically see in patients,” said Dr. Flanigan.
The treatment was well tolerated. There were no deaths or treatment-related serious adverse events, and no clinically-significant adverse events within the first 5 years of follow-up.
The study was funded by Abeona Therapeutics. Dr. Flanigan has been on advisory boards for Apic Bio and 4D Molecular Therapeutics, consulted for Encoded Therapeutics, and has received royalties from Audentes Therapeutics. Dr. Flanigan has received funding from and been a consultant for Avidity.
FROM AAN 2021
Boosting the presence of darker skin in rheumatology education
Studies are flagging racial and ethnic disparities in rheumatology training materials, pointing to a need to boost representation of darker skin tones and better educate physicians in evaluating this cohort.
Not enough is known about these disparities in rheumatology education, despite the fact that minorities make up 40% of the population in the United States.
The problem starts with books and references used in medical schools, Lynn McKinley-Grant, MD, immediate past president of the Skin of Color Society and associate professor of dermatology at Howard University, Washington, said in an interview. “In the medical literature there has been a dearth of images in skin of color in all specialties,” she said. With an increased diversity in the U.S. population, there is a need for health care providers to be able to recognize disease patterns in all skin types.” If a physician is training at an institution where there are not many patients of color in the community, the rheumatologists are even more limited in terms of their clinical experience.
This lack of training in diagnosis of disease has serious clinical repercussions, as seen in COVID cases, Dr. McKinley-Grant noted. “You end up not being able to recognize early erythema, jaundice, anemia, or hypoxemia because those conditions are a different color or pattern in the darker skin types. This can lead to errors in treatment, diagnosis, and medical care, resulting in increased morbidity and mortality.”
Studies point to education gaps
A team of researchers from Washington University in St. Louis called attention to this issue at the American College of Rhematology’s Convergence 2020 conference.
“Patients of color with lupus are especially vulnerable as they often carry a greater disease burden, yet studies show that individuals with darker skin tones are underrepresented in medical educational materials,” Vijay Kannuthurai, MD, and colleagues wrote in their study abstract. The team surveyed 132 providers in St. Louis, Mo., on their confidence in evaluating any rash, and rashes in patients with lupus and varied skin tones.
Participating clinicians, mostly rheumatologists, dermatologists, or internists, had a higher confidence level in diagnosing any rash versus lupus rashes, but were considerably less confident in diagnosing lupus rash on darker skin, compared with those on fair skin. This represents “a disparity between provider confidence and the patient population lupus traditionally affects,” the investigators concluded.
Another recent study found evidence of disparities in clinical education resources. “The lack of dark skin representation among rheumatology educational materials contributes to the implicit bias and structural racism present in medical education by promoting White-only models of disease,” lead author Adrienne Strait, a medical student at the University of California, San Francisco, said in an interview. “Given that rheumatic diseases disproportionately impact racial and ethnic minorities, we felt it was important to examine the representation of these groups within rheumatology training resources.”
She and her colleagues gathered images of rheumatic diseases from four major databases: the American College of Rheumatology’s Image Library, UpToDate, the New England Journal of Medicine Images in Clinical Medicine and Clinical Cases filtered by “Rheumatology,” and the 9th edition of Kelley’s Textbook of Rheumatology. They used Fitzpatrick’s skin phototypes to independently code images depicting skin as “light” (skin types I-IV), “dark” (skin types V-VI), or “indeterminate,” focusing on systemic lupus erythematosus (SLE) and rheumatoid arthritis, two conditions with a known connection to racial and ethnic health disparities.
Taking into account the high incidence of sarcoidosis and SLE in Black patients when compared with White patients, the investigators did a secondary analysis that excluded these cases.
Among 1,043 patient images studied, just 13.4% represented dark skin, compared with 84% that represented light skin. More than 2% represented an indeterminate skin color. Comparing dark-skin representation in the clinical images and SLE images with the representation of Asian, Native American, and Black individuals in the United States and within lupus cases nationally, the investigators found significant underrepresentation of dark skin.
Only 4.2% of RA images had dark-skin representation, making RA one of the diseases with the lowest representation in the study, along with juvenile idiopathic arthritis, the spondyloarthropathies, and Kawasaki disease. “Representation of dark skin in SLE was also lower than the proportion of Black individuals in SLE studies,” the investigators noted. Overall, representation of dark skin in SLE images was just 22.6%. Sarcoidosis comparatively had the largest representation of dark-skin images (69.6%, n = 32).
“Excluding sarcoidosis and SLE images, the overall representation of dark skin was 9.4% (n = 84), which was significantly lower than the proportion of Asian, Native American, and Black individuals within the U.S. Census population,” according to Ms. Strait and her associates. UpToDate contained the largest proportion of images of dark skin respective to other databases, whereas Kelley’s Textbook had the smallest.
Actionable steps
Many physicians are willing to improve upon their skills in identifying conditions on darker skin, as the study by Dr. Kannuthurai and associates suggests. Overall, 93% of the survey’s participants wanted to learn more about rashes in patients of color. “Future educational interventions may help practitioners improve their confidence when diagnosing rashes in lupus patients” with darker skin, they suggested.
Ms. Strait and her colleagues recommended a series of actionable steps to improve diversity and equity of dark skin tone representation in rheumatology curricula.
Editors of educational resources, for example, should make image diversity a priority for those diseases that are most commonly associated with cutaneous manifestations, such as SLE, vasculitis, inflammatory myopathies, systemic sclerosis, sarcoidosis, and psoriasis. They also called for educators in academic rheumatology programs to collaborate to improve diversity in resources used at the undergraduate and graduate medical education level.
Efforts should take place at the local, regional, and national level to publicly discuss and educate clinicians about rheumatic diseases in individuals of color. Speakers at rheumatology conferences should strive to educate learners about presentations of rheumatic diseases in individuals of color. The ACR in the meantime could establish a task force to enhance racial and ethnic diversity in their image library and other published resources.
“These steps may improve provider recognition and diagnosis of rheumatic disease manifestations in skin of color, which may in turn reduce health disparities among racial and ethnic minority groups,” Ms. Strait said.
Beth L. Jonas, MD, chair of the ACR’s Committee on Rheumatology Training and Workforce Issues, called the findings of this study “timely and important.” The researchers highlighted a deficiency in rheumatology training materials that needs addressing, she said in an interview. “I definitely agree that ACR needs to be mindful of this. There’s no doubt that we need to take these recommendations and move along these lines.”
The ACR took a first step in 2020 with the creation of a diversity, equity, and inclusion committee. “We are undergoing a college-wide look at what we do, with an eye toward inclusion. There is a strong interest in addressing health disparities and being an equitable and inclusive community of rheumatology health care professionals,” said Dr. Jonas, chief of the University of North Carolina at Chapel Hill’s division of rheumatology, allergy, and immunology.
The American Academy of Dermatology is also working to improve the image library with images of disease in skin of color. “Everyone’s jumping on this now,” Dr. McKinley-Grant observed. The medical profession can’t afford not to. It’s a life-threatening issue when rheumatoid arthritis and other diseases in people of color aren’t diagnosed early and correctly, she added.
Technologies seek to reduce bias
While many organizations are taking steps to improve representation of darker skin images, VisualDx has taken the lead on this, she said. “They’ve been doing this for years now. There are over 14,000 images of disease in skin of color, including all the rheumatologic diseases. There’s a mobile app and desktop decision support system, and it is very popular. A majority of medical schools have this as a library resource, and hospital systems license it for EHR integration.” Doctors can also get it individually. This enables them to share images and handouts of a diagnosis and select images of patients of color, said Dr. McKinley-Grant, who uses the VisualDx smartphone app DermExpert, which is an app for nondermatologists that features an image library of skin lesions, including darker-skin images.
ProjectIMPACT, powered by VisualDx, is another effort to support reducing health care bias in darker skin. The project is a collaboration between the New England Journal of Medicine Group and the Skin Of Color Society. According to Dr. McKinley-Grant, the organizers are building awareness of the importance of reducing the educational and clinical gaps in diagnosing patients of color and trying to get students and educators to pledge to take meaningful steps and to have real-world impact.
This isn’t just exclusive to dermatology and rheumatology – it involves all medical specialties, she stressed.
ProjectIMPACT isn’t just a resource for physicians, she continued. Librarians can also use it to develop more resources on skin of color.
The Skin Of Color Society and VisualDx have also partnered with the NEJM Group to develop a comprehensive virtual series on the impact of skin color and ethnicity on clinical research. The four-part series addresses structural racism and racial bias in medicine, hair disorders in people of color, pigmentary disorders, keloids, COVID-19 comorbidities, and cutaneous manifestations of systemic diseases in children and adults.
Nuances of recognizing disease
As a medical student, Dr. McKinley-Grant said she was fortunate to attend the Albert Schweitzer Hospital in Lambarene, Gabon, on a fellowship. For 3 months, she gained a wealth of experience examining only African patients with brown skin.
In her other training in medicine, “I’ve been at institutions with diverse populations, in Boston, New York, and Washington,” learning more about all different skin pigments.
This type of training should be more widely available, especially now, with COVID-19 producing new manifestations of skin lesions, she emphasized. Such efforts involve a diversification of images physicians are being trained on so that they can recognize the same disease in a person of color.
“Doctors have to be able to recognize different colors, different shades of brown and shades of white. Not all white skin is the same color,” she noted. In looking at a rash or lesion, “you have to learn how to discern differences in the background color of the skin, which is determined by melanin in the skin (Fitzpatrick skin types I-VI) and by what’s going on in the blood, such as how much oxygen and hemoglobin the patient has in their blood.” Inflammation and infection (erythema) will appear more violaceous in IV-VI skin types, for example.
At the University of North Carolina at Chapel Hill, a group of students and faculty have created a dermatology image library to address the deficiency in the availability of images for teaching purposes. “Our medical students recognized the gap and started this,” Dr. Jonas said. Julie Mervak, MD, assistant professor of dermatology, is spearheading this effort, with students Linnea Westerkam and Anuj Pranav Sanghvi.
“I understand that others around the country are working on similar initiatives,” Dr. Jonas said.
None of the sources for this story had any relevant disclosures.
Studies are flagging racial and ethnic disparities in rheumatology training materials, pointing to a need to boost representation of darker skin tones and better educate physicians in evaluating this cohort.
Not enough is known about these disparities in rheumatology education, despite the fact that minorities make up 40% of the population in the United States.
The problem starts with books and references used in medical schools, Lynn McKinley-Grant, MD, immediate past president of the Skin of Color Society and associate professor of dermatology at Howard University, Washington, said in an interview. “In the medical literature there has been a dearth of images in skin of color in all specialties,” she said. With an increased diversity in the U.S. population, there is a need for health care providers to be able to recognize disease patterns in all skin types.” If a physician is training at an institution where there are not many patients of color in the community, the rheumatologists are even more limited in terms of their clinical experience.
This lack of training in diagnosis of disease has serious clinical repercussions, as seen in COVID cases, Dr. McKinley-Grant noted. “You end up not being able to recognize early erythema, jaundice, anemia, or hypoxemia because those conditions are a different color or pattern in the darker skin types. This can lead to errors in treatment, diagnosis, and medical care, resulting in increased morbidity and mortality.”
Studies point to education gaps
A team of researchers from Washington University in St. Louis called attention to this issue at the American College of Rhematology’s Convergence 2020 conference.
“Patients of color with lupus are especially vulnerable as they often carry a greater disease burden, yet studies show that individuals with darker skin tones are underrepresented in medical educational materials,” Vijay Kannuthurai, MD, and colleagues wrote in their study abstract. The team surveyed 132 providers in St. Louis, Mo., on their confidence in evaluating any rash, and rashes in patients with lupus and varied skin tones.
Participating clinicians, mostly rheumatologists, dermatologists, or internists, had a higher confidence level in diagnosing any rash versus lupus rashes, but were considerably less confident in diagnosing lupus rash on darker skin, compared with those on fair skin. This represents “a disparity between provider confidence and the patient population lupus traditionally affects,” the investigators concluded.
Another recent study found evidence of disparities in clinical education resources. “The lack of dark skin representation among rheumatology educational materials contributes to the implicit bias and structural racism present in medical education by promoting White-only models of disease,” lead author Adrienne Strait, a medical student at the University of California, San Francisco, said in an interview. “Given that rheumatic diseases disproportionately impact racial and ethnic minorities, we felt it was important to examine the representation of these groups within rheumatology training resources.”
She and her colleagues gathered images of rheumatic diseases from four major databases: the American College of Rheumatology’s Image Library, UpToDate, the New England Journal of Medicine Images in Clinical Medicine and Clinical Cases filtered by “Rheumatology,” and the 9th edition of Kelley’s Textbook of Rheumatology. They used Fitzpatrick’s skin phototypes to independently code images depicting skin as “light” (skin types I-IV), “dark” (skin types V-VI), or “indeterminate,” focusing on systemic lupus erythematosus (SLE) and rheumatoid arthritis, two conditions with a known connection to racial and ethnic health disparities.
Taking into account the high incidence of sarcoidosis and SLE in Black patients when compared with White patients, the investigators did a secondary analysis that excluded these cases.
Among 1,043 patient images studied, just 13.4% represented dark skin, compared with 84% that represented light skin. More than 2% represented an indeterminate skin color. Comparing dark-skin representation in the clinical images and SLE images with the representation of Asian, Native American, and Black individuals in the United States and within lupus cases nationally, the investigators found significant underrepresentation of dark skin.
Only 4.2% of RA images had dark-skin representation, making RA one of the diseases with the lowest representation in the study, along with juvenile idiopathic arthritis, the spondyloarthropathies, and Kawasaki disease. “Representation of dark skin in SLE was also lower than the proportion of Black individuals in SLE studies,” the investigators noted. Overall, representation of dark skin in SLE images was just 22.6%. Sarcoidosis comparatively had the largest representation of dark-skin images (69.6%, n = 32).
“Excluding sarcoidosis and SLE images, the overall representation of dark skin was 9.4% (n = 84), which was significantly lower than the proportion of Asian, Native American, and Black individuals within the U.S. Census population,” according to Ms. Strait and her associates. UpToDate contained the largest proportion of images of dark skin respective to other databases, whereas Kelley’s Textbook had the smallest.
Actionable steps
Many physicians are willing to improve upon their skills in identifying conditions on darker skin, as the study by Dr. Kannuthurai and associates suggests. Overall, 93% of the survey’s participants wanted to learn more about rashes in patients of color. “Future educational interventions may help practitioners improve their confidence when diagnosing rashes in lupus patients” with darker skin, they suggested.
Ms. Strait and her colleagues recommended a series of actionable steps to improve diversity and equity of dark skin tone representation in rheumatology curricula.
Editors of educational resources, for example, should make image diversity a priority for those diseases that are most commonly associated with cutaneous manifestations, such as SLE, vasculitis, inflammatory myopathies, systemic sclerosis, sarcoidosis, and psoriasis. They also called for educators in academic rheumatology programs to collaborate to improve diversity in resources used at the undergraduate and graduate medical education level.
Efforts should take place at the local, regional, and national level to publicly discuss and educate clinicians about rheumatic diseases in individuals of color. Speakers at rheumatology conferences should strive to educate learners about presentations of rheumatic diseases in individuals of color. The ACR in the meantime could establish a task force to enhance racial and ethnic diversity in their image library and other published resources.
“These steps may improve provider recognition and diagnosis of rheumatic disease manifestations in skin of color, which may in turn reduce health disparities among racial and ethnic minority groups,” Ms. Strait said.
Beth L. Jonas, MD, chair of the ACR’s Committee on Rheumatology Training and Workforce Issues, called the findings of this study “timely and important.” The researchers highlighted a deficiency in rheumatology training materials that needs addressing, she said in an interview. “I definitely agree that ACR needs to be mindful of this. There’s no doubt that we need to take these recommendations and move along these lines.”
The ACR took a first step in 2020 with the creation of a diversity, equity, and inclusion committee. “We are undergoing a college-wide look at what we do, with an eye toward inclusion. There is a strong interest in addressing health disparities and being an equitable and inclusive community of rheumatology health care professionals,” said Dr. Jonas, chief of the University of North Carolina at Chapel Hill’s division of rheumatology, allergy, and immunology.
The American Academy of Dermatology is also working to improve the image library with images of disease in skin of color. “Everyone’s jumping on this now,” Dr. McKinley-Grant observed. The medical profession can’t afford not to. It’s a life-threatening issue when rheumatoid arthritis and other diseases in people of color aren’t diagnosed early and correctly, she added.
Technologies seek to reduce bias
While many organizations are taking steps to improve representation of darker skin images, VisualDx has taken the lead on this, she said. “They’ve been doing this for years now. There are over 14,000 images of disease in skin of color, including all the rheumatologic diseases. There’s a mobile app and desktop decision support system, and it is very popular. A majority of medical schools have this as a library resource, and hospital systems license it for EHR integration.” Doctors can also get it individually. This enables them to share images and handouts of a diagnosis and select images of patients of color, said Dr. McKinley-Grant, who uses the VisualDx smartphone app DermExpert, which is an app for nondermatologists that features an image library of skin lesions, including darker-skin images.
ProjectIMPACT, powered by VisualDx, is another effort to support reducing health care bias in darker skin. The project is a collaboration between the New England Journal of Medicine Group and the Skin Of Color Society. According to Dr. McKinley-Grant, the organizers are building awareness of the importance of reducing the educational and clinical gaps in diagnosing patients of color and trying to get students and educators to pledge to take meaningful steps and to have real-world impact.
This isn’t just exclusive to dermatology and rheumatology – it involves all medical specialties, she stressed.
ProjectIMPACT isn’t just a resource for physicians, she continued. Librarians can also use it to develop more resources on skin of color.
The Skin Of Color Society and VisualDx have also partnered with the NEJM Group to develop a comprehensive virtual series on the impact of skin color and ethnicity on clinical research. The four-part series addresses structural racism and racial bias in medicine, hair disorders in people of color, pigmentary disorders, keloids, COVID-19 comorbidities, and cutaneous manifestations of systemic diseases in children and adults.
Nuances of recognizing disease
As a medical student, Dr. McKinley-Grant said she was fortunate to attend the Albert Schweitzer Hospital in Lambarene, Gabon, on a fellowship. For 3 months, she gained a wealth of experience examining only African patients with brown skin.
In her other training in medicine, “I’ve been at institutions with diverse populations, in Boston, New York, and Washington,” learning more about all different skin pigments.
This type of training should be more widely available, especially now, with COVID-19 producing new manifestations of skin lesions, she emphasized. Such efforts involve a diversification of images physicians are being trained on so that they can recognize the same disease in a person of color.
“Doctors have to be able to recognize different colors, different shades of brown and shades of white. Not all white skin is the same color,” she noted. In looking at a rash or lesion, “you have to learn how to discern differences in the background color of the skin, which is determined by melanin in the skin (Fitzpatrick skin types I-VI) and by what’s going on in the blood, such as how much oxygen and hemoglobin the patient has in their blood.” Inflammation and infection (erythema) will appear more violaceous in IV-VI skin types, for example.
At the University of North Carolina at Chapel Hill, a group of students and faculty have created a dermatology image library to address the deficiency in the availability of images for teaching purposes. “Our medical students recognized the gap and started this,” Dr. Jonas said. Julie Mervak, MD, assistant professor of dermatology, is spearheading this effort, with students Linnea Westerkam and Anuj Pranav Sanghvi.
“I understand that others around the country are working on similar initiatives,” Dr. Jonas said.
None of the sources for this story had any relevant disclosures.
Studies are flagging racial and ethnic disparities in rheumatology training materials, pointing to a need to boost representation of darker skin tones and better educate physicians in evaluating this cohort.
Not enough is known about these disparities in rheumatology education, despite the fact that minorities make up 40% of the population in the United States.
The problem starts with books and references used in medical schools, Lynn McKinley-Grant, MD, immediate past president of the Skin of Color Society and associate professor of dermatology at Howard University, Washington, said in an interview. “In the medical literature there has been a dearth of images in skin of color in all specialties,” she said. With an increased diversity in the U.S. population, there is a need for health care providers to be able to recognize disease patterns in all skin types.” If a physician is training at an institution where there are not many patients of color in the community, the rheumatologists are even more limited in terms of their clinical experience.
This lack of training in diagnosis of disease has serious clinical repercussions, as seen in COVID cases, Dr. McKinley-Grant noted. “You end up not being able to recognize early erythema, jaundice, anemia, or hypoxemia because those conditions are a different color or pattern in the darker skin types. This can lead to errors in treatment, diagnosis, and medical care, resulting in increased morbidity and mortality.”
Studies point to education gaps
A team of researchers from Washington University in St. Louis called attention to this issue at the American College of Rhematology’s Convergence 2020 conference.
“Patients of color with lupus are especially vulnerable as they often carry a greater disease burden, yet studies show that individuals with darker skin tones are underrepresented in medical educational materials,” Vijay Kannuthurai, MD, and colleagues wrote in their study abstract. The team surveyed 132 providers in St. Louis, Mo., on their confidence in evaluating any rash, and rashes in patients with lupus and varied skin tones.
Participating clinicians, mostly rheumatologists, dermatologists, or internists, had a higher confidence level in diagnosing any rash versus lupus rashes, but were considerably less confident in diagnosing lupus rash on darker skin, compared with those on fair skin. This represents “a disparity between provider confidence and the patient population lupus traditionally affects,” the investigators concluded.
Another recent study found evidence of disparities in clinical education resources. “The lack of dark skin representation among rheumatology educational materials contributes to the implicit bias and structural racism present in medical education by promoting White-only models of disease,” lead author Adrienne Strait, a medical student at the University of California, San Francisco, said in an interview. “Given that rheumatic diseases disproportionately impact racial and ethnic minorities, we felt it was important to examine the representation of these groups within rheumatology training resources.”
She and her colleagues gathered images of rheumatic diseases from four major databases: the American College of Rheumatology’s Image Library, UpToDate, the New England Journal of Medicine Images in Clinical Medicine and Clinical Cases filtered by “Rheumatology,” and the 9th edition of Kelley’s Textbook of Rheumatology. They used Fitzpatrick’s skin phototypes to independently code images depicting skin as “light” (skin types I-IV), “dark” (skin types V-VI), or “indeterminate,” focusing on systemic lupus erythematosus (SLE) and rheumatoid arthritis, two conditions with a known connection to racial and ethnic health disparities.
Taking into account the high incidence of sarcoidosis and SLE in Black patients when compared with White patients, the investigators did a secondary analysis that excluded these cases.
Among 1,043 patient images studied, just 13.4% represented dark skin, compared with 84% that represented light skin. More than 2% represented an indeterminate skin color. Comparing dark-skin representation in the clinical images and SLE images with the representation of Asian, Native American, and Black individuals in the United States and within lupus cases nationally, the investigators found significant underrepresentation of dark skin.
Only 4.2% of RA images had dark-skin representation, making RA one of the diseases with the lowest representation in the study, along with juvenile idiopathic arthritis, the spondyloarthropathies, and Kawasaki disease. “Representation of dark skin in SLE was also lower than the proportion of Black individuals in SLE studies,” the investigators noted. Overall, representation of dark skin in SLE images was just 22.6%. Sarcoidosis comparatively had the largest representation of dark-skin images (69.6%, n = 32).
“Excluding sarcoidosis and SLE images, the overall representation of dark skin was 9.4% (n = 84), which was significantly lower than the proportion of Asian, Native American, and Black individuals within the U.S. Census population,” according to Ms. Strait and her associates. UpToDate contained the largest proportion of images of dark skin respective to other databases, whereas Kelley’s Textbook had the smallest.
Actionable steps
Many physicians are willing to improve upon their skills in identifying conditions on darker skin, as the study by Dr. Kannuthurai and associates suggests. Overall, 93% of the survey’s participants wanted to learn more about rashes in patients of color. “Future educational interventions may help practitioners improve their confidence when diagnosing rashes in lupus patients” with darker skin, they suggested.
Ms. Strait and her colleagues recommended a series of actionable steps to improve diversity and equity of dark skin tone representation in rheumatology curricula.
Editors of educational resources, for example, should make image diversity a priority for those diseases that are most commonly associated with cutaneous manifestations, such as SLE, vasculitis, inflammatory myopathies, systemic sclerosis, sarcoidosis, and psoriasis. They also called for educators in academic rheumatology programs to collaborate to improve diversity in resources used at the undergraduate and graduate medical education level.
Efforts should take place at the local, regional, and national level to publicly discuss and educate clinicians about rheumatic diseases in individuals of color. Speakers at rheumatology conferences should strive to educate learners about presentations of rheumatic diseases in individuals of color. The ACR in the meantime could establish a task force to enhance racial and ethnic diversity in their image library and other published resources.
“These steps may improve provider recognition and diagnosis of rheumatic disease manifestations in skin of color, which may in turn reduce health disparities among racial and ethnic minority groups,” Ms. Strait said.
Beth L. Jonas, MD, chair of the ACR’s Committee on Rheumatology Training and Workforce Issues, called the findings of this study “timely and important.” The researchers highlighted a deficiency in rheumatology training materials that needs addressing, she said in an interview. “I definitely agree that ACR needs to be mindful of this. There’s no doubt that we need to take these recommendations and move along these lines.”
The ACR took a first step in 2020 with the creation of a diversity, equity, and inclusion committee. “We are undergoing a college-wide look at what we do, with an eye toward inclusion. There is a strong interest in addressing health disparities and being an equitable and inclusive community of rheumatology health care professionals,” said Dr. Jonas, chief of the University of North Carolina at Chapel Hill’s division of rheumatology, allergy, and immunology.
The American Academy of Dermatology is also working to improve the image library with images of disease in skin of color. “Everyone’s jumping on this now,” Dr. McKinley-Grant observed. The medical profession can’t afford not to. It’s a life-threatening issue when rheumatoid arthritis and other diseases in people of color aren’t diagnosed early and correctly, she added.
Technologies seek to reduce bias
While many organizations are taking steps to improve representation of darker skin images, VisualDx has taken the lead on this, she said. “They’ve been doing this for years now. There are over 14,000 images of disease in skin of color, including all the rheumatologic diseases. There’s a mobile app and desktop decision support system, and it is very popular. A majority of medical schools have this as a library resource, and hospital systems license it for EHR integration.” Doctors can also get it individually. This enables them to share images and handouts of a diagnosis and select images of patients of color, said Dr. McKinley-Grant, who uses the VisualDx smartphone app DermExpert, which is an app for nondermatologists that features an image library of skin lesions, including darker-skin images.
ProjectIMPACT, powered by VisualDx, is another effort to support reducing health care bias in darker skin. The project is a collaboration between the New England Journal of Medicine Group and the Skin Of Color Society. According to Dr. McKinley-Grant, the organizers are building awareness of the importance of reducing the educational and clinical gaps in diagnosing patients of color and trying to get students and educators to pledge to take meaningful steps and to have real-world impact.
This isn’t just exclusive to dermatology and rheumatology – it involves all medical specialties, she stressed.
ProjectIMPACT isn’t just a resource for physicians, she continued. Librarians can also use it to develop more resources on skin of color.
The Skin Of Color Society and VisualDx have also partnered with the NEJM Group to develop a comprehensive virtual series on the impact of skin color and ethnicity on clinical research. The four-part series addresses structural racism and racial bias in medicine, hair disorders in people of color, pigmentary disorders, keloids, COVID-19 comorbidities, and cutaneous manifestations of systemic diseases in children and adults.
Nuances of recognizing disease
As a medical student, Dr. McKinley-Grant said she was fortunate to attend the Albert Schweitzer Hospital in Lambarene, Gabon, on a fellowship. For 3 months, she gained a wealth of experience examining only African patients with brown skin.
In her other training in medicine, “I’ve been at institutions with diverse populations, in Boston, New York, and Washington,” learning more about all different skin pigments.
This type of training should be more widely available, especially now, with COVID-19 producing new manifestations of skin lesions, she emphasized. Such efforts involve a diversification of images physicians are being trained on so that they can recognize the same disease in a person of color.
“Doctors have to be able to recognize different colors, different shades of brown and shades of white. Not all white skin is the same color,” she noted. In looking at a rash or lesion, “you have to learn how to discern differences in the background color of the skin, which is determined by melanin in the skin (Fitzpatrick skin types I-VI) and by what’s going on in the blood, such as how much oxygen and hemoglobin the patient has in their blood.” Inflammation and infection (erythema) will appear more violaceous in IV-VI skin types, for example.
At the University of North Carolina at Chapel Hill, a group of students and faculty have created a dermatology image library to address the deficiency in the availability of images for teaching purposes. “Our medical students recognized the gap and started this,” Dr. Jonas said. Julie Mervak, MD, assistant professor of dermatology, is spearheading this effort, with students Linnea Westerkam and Anuj Pranav Sanghvi.
“I understand that others around the country are working on similar initiatives,” Dr. Jonas said.
None of the sources for this story had any relevant disclosures.
Early pediatric rheumatology residency exposure key to solving workforce shortages
The biggest factors that attract medical students to enter pediatric rheumatology are interest in disease pathology, the patient-physician relationship, and clinical exposure in residency, according to preliminary research shared at the annual scientific meeting of the Childhood Arthritis and Rheumatology Research Alliance.
A shortage in pediatric rheumatology already exists and is expected to worsen to 61% by 2030, noted the authors. About one-third (32%) of current pediatric rheumatologists will retire in the next decade, and less than two-thirds of fellowship slots have filled in the past 5 years.
Katherine Schultz, MD, a clinical fellow in the division of rheumatology at Cincinnati Children’s Medical Center, led the study and said she was surprised that medical school exposure did not play a bigger role in attracting people to the field, but perhaps that’s because too few people received that early exposure.
“If we had earlier exposure, maybe that wouldn’t be definitive for saying, ‘yes, I want to do this subspecialty of pediatric rheumatology,’ but it would open the door, so when you hit residency, you can explore it further,” Dr. Schultz said in an interview.
Dr. Schultz and her colleagues conducted a survey using the CARRA registry during September-December 2020. Respondents included pediatric rheumatology clinical fellows, early-career pediatric rheumatology faculty with less than 7 years practice experience, and mid- to late-career pediatric rheumatology faculty – those with more than 7 years of practice. They are currently in the process of analyzing additional qualitative data.
Of the 428 clinicians recruited to complete the study, 92 did so, for a response rate of 21%. Most respondents were female and non-Hispanic White. A total of 40% were clinical fellows, 41% were early-career faculty, and 18% were mid- to late-career faculty.
Positive factors for choosing the field
More than 80% of respondents across all three experience levels cited disease pathology as a positive attribute of pediatric rheumatology, something that Dr. Schultz mentioned as well.
“The rewarding part of pediatric rheumatology is we take these complex diseases and we help give kids their life back,” she said.
Nearly all the clinical fellows who responded said the patient-physician relationship was important, which early- and mid- and late-career faculty mentioned as well, although to a slightly lesser extent.
Other factors following closely behind disease pathology, patient-physician relationship, and clinical exposure in residency were having a role model in the field – cited by more than three-quarters of clinical fellows and early-career faculty – and having mentorship during residency.
“One of the strengths of our field and one of the things I love about pediatric rheumatology is our community is so close-knit, so kind, and so welcoming,” Dr. Schultz said. “If students can have that exposure and they can see the kind of people who are in this field, that’s our greatest power to draw people to our field.”
Low compensation is a deterrent
The least frequently mentioned positive factors were research opportunities and income. In fact, income was by far the most commonly cited negative attribute of pediatric rheumatology, reported by nearly half of clinical fellows and more than a quarter of early- and mid- and late-career faculty.
“We are one of the lowest paid specialties in pediatrics. We often make [income] comparable to or less than a general pediatrician,” Dr. Schultz said. One reason for that is the difficulty of doing pediatric rheumatology in private practice. Most positions are at academic institutions, which will nearly always involve lower pay scales, she said. The field is also not a procedure-based one, which makes billing more difficult to quantify.
“If I spend an hour thinking about a patient’s diagnosis and interpreting their labs, how do we quantify that?” she asked. “Our field is so cognitive that it makes it hard to bill in the same manner” as fields who bill more procedures, she said.
Colleen Correll, MD, MPH, an assistant professor of pediatric rheumatology at the University of Minnesota in Minneapolis, was also not surprised to see salary listed as the biggest deterrent to the field.
“Unfortunately, compared to other specialties, our compensation is lower, and this can be a real barrier for people who have large medical student loans to repay and for those providing for their families,” Dr. Correll said in an interview. She and Dr. Schultz both said that workforce advocacy groups are working on ways to compensate for that difference, including loan repayment programs.
The other specialties that respondents considered before choosing pediatric rheumatology varied by generation, but allergy and immunology and endocrinology were among the most cited by early-, mid-, and late-career faculty. Clinical fellows’ responses were more evenly distributed across a range of different subspecialties.
Early exposure is key
A large proportion of all three groups, including almost 90% of early-career faculty and clinical fellows, said they received exposure to pediatric rheumatology during residency. However, only a little more than two-thirds of clinical fellows had exposure to the field in medical school, and fewer than that reported medical school exposure among both faculty groups.
Both Dr. Correll and Dr. Schultz said that early exposure to pediatric rheumatology was key to bringing more people into the workforce.
“I believe that once a medical student or resident has an opportunity to work with a pediatric rheumatologist, they are able to see the many reasons for which this is a great career choice,” Dr. Correll said. “Pediatric rheumatologists are seen as positive role models. We love what we do, we have great patient-physician relationships, and we see interesting disease pathophysiology on a regular basis.”
Although earlier exposure to the field is primarily an institutional issue, clinicians can play a role as well.
“For the individual practitioners, the biggest way they can make an impact is to make themselves visible,” Dr. Schultz said. Although the subspecialty is stretched thin, she encouraged pediatric rheumatologists to do med school and resident lectures, volunteer to do feedback sessions, offer residents opportunities to rotate with them, and generally make themselves more visible. “It’s going to take the community to really make the change we need,” she said.
She and Dr. Correll both cited the American College of Rheumatology and CARRA pediatric residency programs as helpful, but there’s more to do. Other ways to increase exposure to the field include creating medical student rotations in pediatric rheumatology, working on case reports or small research projects with new learners, and requesting that pediatric rheumatology be a mandatory rotation in pediatrics training, Dr. Correll said.
“We absolutely have a responsibility to promote our field because if we don’t, the workforce supply issue will continue to worsen,” Dr. Correll said. “We already have a workforce shortage, and models show this shortage will only worsen if we don’t improve recruitment into the field, especially with many pediatric rheumatologists coming up on retirement. Once we are able to expose medical students and residents to the field, I think they easily see our passion and our love for the field, and it’s easy to recruit them.”
The research was funded by CARRA, which receives funding from the Arthritis Foundation. Dr. Schultz and Dr. Correll had no disclosures.
The biggest factors that attract medical students to enter pediatric rheumatology are interest in disease pathology, the patient-physician relationship, and clinical exposure in residency, according to preliminary research shared at the annual scientific meeting of the Childhood Arthritis and Rheumatology Research Alliance.
A shortage in pediatric rheumatology already exists and is expected to worsen to 61% by 2030, noted the authors. About one-third (32%) of current pediatric rheumatologists will retire in the next decade, and less than two-thirds of fellowship slots have filled in the past 5 years.
Katherine Schultz, MD, a clinical fellow in the division of rheumatology at Cincinnati Children’s Medical Center, led the study and said she was surprised that medical school exposure did not play a bigger role in attracting people to the field, but perhaps that’s because too few people received that early exposure.
“If we had earlier exposure, maybe that wouldn’t be definitive for saying, ‘yes, I want to do this subspecialty of pediatric rheumatology,’ but it would open the door, so when you hit residency, you can explore it further,” Dr. Schultz said in an interview.
Dr. Schultz and her colleagues conducted a survey using the CARRA registry during September-December 2020. Respondents included pediatric rheumatology clinical fellows, early-career pediatric rheumatology faculty with less than 7 years practice experience, and mid- to late-career pediatric rheumatology faculty – those with more than 7 years of practice. They are currently in the process of analyzing additional qualitative data.
Of the 428 clinicians recruited to complete the study, 92 did so, for a response rate of 21%. Most respondents were female and non-Hispanic White. A total of 40% were clinical fellows, 41% were early-career faculty, and 18% were mid- to late-career faculty.
Positive factors for choosing the field
More than 80% of respondents across all three experience levels cited disease pathology as a positive attribute of pediatric rheumatology, something that Dr. Schultz mentioned as well.
“The rewarding part of pediatric rheumatology is we take these complex diseases and we help give kids their life back,” she said.
Nearly all the clinical fellows who responded said the patient-physician relationship was important, which early- and mid- and late-career faculty mentioned as well, although to a slightly lesser extent.
Other factors following closely behind disease pathology, patient-physician relationship, and clinical exposure in residency were having a role model in the field – cited by more than three-quarters of clinical fellows and early-career faculty – and having mentorship during residency.
“One of the strengths of our field and one of the things I love about pediatric rheumatology is our community is so close-knit, so kind, and so welcoming,” Dr. Schultz said. “If students can have that exposure and they can see the kind of people who are in this field, that’s our greatest power to draw people to our field.”
Low compensation is a deterrent
The least frequently mentioned positive factors were research opportunities and income. In fact, income was by far the most commonly cited negative attribute of pediatric rheumatology, reported by nearly half of clinical fellows and more than a quarter of early- and mid- and late-career faculty.
“We are one of the lowest paid specialties in pediatrics. We often make [income] comparable to or less than a general pediatrician,” Dr. Schultz said. One reason for that is the difficulty of doing pediatric rheumatology in private practice. Most positions are at academic institutions, which will nearly always involve lower pay scales, she said. The field is also not a procedure-based one, which makes billing more difficult to quantify.
“If I spend an hour thinking about a patient’s diagnosis and interpreting their labs, how do we quantify that?” she asked. “Our field is so cognitive that it makes it hard to bill in the same manner” as fields who bill more procedures, she said.
Colleen Correll, MD, MPH, an assistant professor of pediatric rheumatology at the University of Minnesota in Minneapolis, was also not surprised to see salary listed as the biggest deterrent to the field.
“Unfortunately, compared to other specialties, our compensation is lower, and this can be a real barrier for people who have large medical student loans to repay and for those providing for their families,” Dr. Correll said in an interview. She and Dr. Schultz both said that workforce advocacy groups are working on ways to compensate for that difference, including loan repayment programs.
The other specialties that respondents considered before choosing pediatric rheumatology varied by generation, but allergy and immunology and endocrinology were among the most cited by early-, mid-, and late-career faculty. Clinical fellows’ responses were more evenly distributed across a range of different subspecialties.
Early exposure is key
A large proportion of all three groups, including almost 90% of early-career faculty and clinical fellows, said they received exposure to pediatric rheumatology during residency. However, only a little more than two-thirds of clinical fellows had exposure to the field in medical school, and fewer than that reported medical school exposure among both faculty groups.
Both Dr. Correll and Dr. Schultz said that early exposure to pediatric rheumatology was key to bringing more people into the workforce.
“I believe that once a medical student or resident has an opportunity to work with a pediatric rheumatologist, they are able to see the many reasons for which this is a great career choice,” Dr. Correll said. “Pediatric rheumatologists are seen as positive role models. We love what we do, we have great patient-physician relationships, and we see interesting disease pathophysiology on a regular basis.”
Although earlier exposure to the field is primarily an institutional issue, clinicians can play a role as well.
“For the individual practitioners, the biggest way they can make an impact is to make themselves visible,” Dr. Schultz said. Although the subspecialty is stretched thin, she encouraged pediatric rheumatologists to do med school and resident lectures, volunteer to do feedback sessions, offer residents opportunities to rotate with them, and generally make themselves more visible. “It’s going to take the community to really make the change we need,” she said.
She and Dr. Correll both cited the American College of Rheumatology and CARRA pediatric residency programs as helpful, but there’s more to do. Other ways to increase exposure to the field include creating medical student rotations in pediatric rheumatology, working on case reports or small research projects with new learners, and requesting that pediatric rheumatology be a mandatory rotation in pediatrics training, Dr. Correll said.
“We absolutely have a responsibility to promote our field because if we don’t, the workforce supply issue will continue to worsen,” Dr. Correll said. “We already have a workforce shortage, and models show this shortage will only worsen if we don’t improve recruitment into the field, especially with many pediatric rheumatologists coming up on retirement. Once we are able to expose medical students and residents to the field, I think they easily see our passion and our love for the field, and it’s easy to recruit them.”
The research was funded by CARRA, which receives funding from the Arthritis Foundation. Dr. Schultz and Dr. Correll had no disclosures.
The biggest factors that attract medical students to enter pediatric rheumatology are interest in disease pathology, the patient-physician relationship, and clinical exposure in residency, according to preliminary research shared at the annual scientific meeting of the Childhood Arthritis and Rheumatology Research Alliance.
A shortage in pediatric rheumatology already exists and is expected to worsen to 61% by 2030, noted the authors. About one-third (32%) of current pediatric rheumatologists will retire in the next decade, and less than two-thirds of fellowship slots have filled in the past 5 years.
Katherine Schultz, MD, a clinical fellow in the division of rheumatology at Cincinnati Children’s Medical Center, led the study and said she was surprised that medical school exposure did not play a bigger role in attracting people to the field, but perhaps that’s because too few people received that early exposure.
“If we had earlier exposure, maybe that wouldn’t be definitive for saying, ‘yes, I want to do this subspecialty of pediatric rheumatology,’ but it would open the door, so when you hit residency, you can explore it further,” Dr. Schultz said in an interview.
Dr. Schultz and her colleagues conducted a survey using the CARRA registry during September-December 2020. Respondents included pediatric rheumatology clinical fellows, early-career pediatric rheumatology faculty with less than 7 years practice experience, and mid- to late-career pediatric rheumatology faculty – those with more than 7 years of practice. They are currently in the process of analyzing additional qualitative data.
Of the 428 clinicians recruited to complete the study, 92 did so, for a response rate of 21%. Most respondents were female and non-Hispanic White. A total of 40% were clinical fellows, 41% were early-career faculty, and 18% were mid- to late-career faculty.
Positive factors for choosing the field
More than 80% of respondents across all three experience levels cited disease pathology as a positive attribute of pediatric rheumatology, something that Dr. Schultz mentioned as well.
“The rewarding part of pediatric rheumatology is we take these complex diseases and we help give kids their life back,” she said.
Nearly all the clinical fellows who responded said the patient-physician relationship was important, which early- and mid- and late-career faculty mentioned as well, although to a slightly lesser extent.
Other factors following closely behind disease pathology, patient-physician relationship, and clinical exposure in residency were having a role model in the field – cited by more than three-quarters of clinical fellows and early-career faculty – and having mentorship during residency.
“One of the strengths of our field and one of the things I love about pediatric rheumatology is our community is so close-knit, so kind, and so welcoming,” Dr. Schultz said. “If students can have that exposure and they can see the kind of people who are in this field, that’s our greatest power to draw people to our field.”
Low compensation is a deterrent
The least frequently mentioned positive factors were research opportunities and income. In fact, income was by far the most commonly cited negative attribute of pediatric rheumatology, reported by nearly half of clinical fellows and more than a quarter of early- and mid- and late-career faculty.
“We are one of the lowest paid specialties in pediatrics. We often make [income] comparable to or less than a general pediatrician,” Dr. Schultz said. One reason for that is the difficulty of doing pediatric rheumatology in private practice. Most positions are at academic institutions, which will nearly always involve lower pay scales, she said. The field is also not a procedure-based one, which makes billing more difficult to quantify.
“If I spend an hour thinking about a patient’s diagnosis and interpreting their labs, how do we quantify that?” she asked. “Our field is so cognitive that it makes it hard to bill in the same manner” as fields who bill more procedures, she said.
Colleen Correll, MD, MPH, an assistant professor of pediatric rheumatology at the University of Minnesota in Minneapolis, was also not surprised to see salary listed as the biggest deterrent to the field.
“Unfortunately, compared to other specialties, our compensation is lower, and this can be a real barrier for people who have large medical student loans to repay and for those providing for their families,” Dr. Correll said in an interview. She and Dr. Schultz both said that workforce advocacy groups are working on ways to compensate for that difference, including loan repayment programs.
The other specialties that respondents considered before choosing pediatric rheumatology varied by generation, but allergy and immunology and endocrinology were among the most cited by early-, mid-, and late-career faculty. Clinical fellows’ responses were more evenly distributed across a range of different subspecialties.
Early exposure is key
A large proportion of all three groups, including almost 90% of early-career faculty and clinical fellows, said they received exposure to pediatric rheumatology during residency. However, only a little more than two-thirds of clinical fellows had exposure to the field in medical school, and fewer than that reported medical school exposure among both faculty groups.
Both Dr. Correll and Dr. Schultz said that early exposure to pediatric rheumatology was key to bringing more people into the workforce.
“I believe that once a medical student or resident has an opportunity to work with a pediatric rheumatologist, they are able to see the many reasons for which this is a great career choice,” Dr. Correll said. “Pediatric rheumatologists are seen as positive role models. We love what we do, we have great patient-physician relationships, and we see interesting disease pathophysiology on a regular basis.”
Although earlier exposure to the field is primarily an institutional issue, clinicians can play a role as well.
“For the individual practitioners, the biggest way they can make an impact is to make themselves visible,” Dr. Schultz said. Although the subspecialty is stretched thin, she encouraged pediatric rheumatologists to do med school and resident lectures, volunteer to do feedback sessions, offer residents opportunities to rotate with them, and generally make themselves more visible. “It’s going to take the community to really make the change we need,” she said.
She and Dr. Correll both cited the American College of Rheumatology and CARRA pediatric residency programs as helpful, but there’s more to do. Other ways to increase exposure to the field include creating medical student rotations in pediatric rheumatology, working on case reports or small research projects with new learners, and requesting that pediatric rheumatology be a mandatory rotation in pediatrics training, Dr. Correll said.
“We absolutely have a responsibility to promote our field because if we don’t, the workforce supply issue will continue to worsen,” Dr. Correll said. “We already have a workforce shortage, and models show this shortage will only worsen if we don’t improve recruitment into the field, especially with many pediatric rheumatologists coming up on retirement. Once we are able to expose medical students and residents to the field, I think they easily see our passion and our love for the field, and it’s easy to recruit them.”
The research was funded by CARRA, which receives funding from the Arthritis Foundation. Dr. Schultz and Dr. Correll had no disclosures.
FROM CARRA 2021
Frontline brentuximab vedotin shows promise in high-risk pediatric Hodgkin lymphoma
A frontline treatment regimen including brentuximab vedotin (Bv) was well tolerated, was highly effective, and significantly reduced radiation exposure in pediatric patients with high-risk Hodgkin lymphoma, according to the results of an open-label, phase 2 trial.
Of 77 patients enrolled in the investigator-initiated, single-arm, multicenter trial, 27 (35%) achieved complete remission (CR) without radiation at the early response assessment (ERA) after two cycles of therapy, reported Monika L. Metzger, MD, of St. Jude Children’s Research Hospital, Memphis, Tenn. and colleagues. The report was published online in the Journal of Clinical Oncology.
The addition of Bv also resulted in superior event-free survival (97.4%) and overall survival (98.7%) at median follow-up of 3.4 years, compared with previously published pediatric trials, such as the HOD99 trial (EFS and OS of 80.8% and 96.5%, respectively), the authors noted.
Bv chemotherapy
Bv, a targeted anti-CD30 antibody-drug conjugate, received expanded Food and Drug Administration approval in March 2018 for frontline use in combination with chemotherapy in adults with stage III or IV classical Hodgkin lymphoma (HL). The current study is the first to include Bv as part of a chemotherapy regimen in the frontline setting for pediatric classical HL, the authors noted, adding that their primary aim was to reduce prescribed radiation thereby limiting late toxicities associated with radiation in this population.
Patients enrolled were children and adolescents aged 18 years and under with stage IIB, IIIB, or IV classical HL. Bv was used in place of vincristine in the standard OEPA/COPDac (vincristine, etoposide, prednisone, and doxorubicin/cyclophosphamide, vincristine, prednisone, and dacarbazine) frontline regimen for pediatric HL.
The Bv-based chemotherapy regimen was well tolerated and mostly limited to low-grade nausea, vomiting, and constipation, and the most common adverse events were hematologic events occurring mainly during the first two cycles of chemotherapy.
“Notably, we observed a very low incidence of neuropathy (4%) by both clinician and patient report, and no participants required Bv dose reduction or discontinuation,” they wrote, explaining that neuropathy is more common with vincristine.
Radiation exposure
Residual node radiotherapy (RNRT) was delivered at a prescribed dose of 25.5 Gy in 17 fractions of 1.5 Gy, 2-4 weeks after completion of chemotherapy only to nodal sites that did not achieve a CR at the early response assessment (ERA) after two cycles of therapy.
“Patients treated with RNRT had significantly lower integral radiation dose compared with patients treated on HOD99 with [involved-field radiation therapy] (78.1 J vs. 249.6 J),” the authors wrote. “Doses to specific organs were also compared ... [t]he mean heart dose was reduced to 5.29 Gy from 16.9 Gy, and the mean thyroid dose was reduced to 4.46 Gy from 25.9 Gy.”
Women also had significantly less breast radiation exposure (mean of 3.21 Gy vs. 6.85 Gy in HOD99).
One irradiated patient experienced disease progression at the end of therapy, but remained disease free more than 6 years following salvage therapy, and one unexpected death occurred, the authors said.
“We have already reduced the use of radiation for low-risk Hodgkin lymphoma patients. In this study we’ve shown that it is also possible to either omit or reduce the extent of radiation for high-risk patients, using highly focal methods such as proton beam radiation or intensity modulated radiation,” co–senior author Matthew Krasin, MD, of St. Jude’s department of radiation oncology, stated in a press release.
Next steps
Co–senior author Melissa Hudson, MD, the St. Jude cancer survivorship division director, added that “[b]eing able to offer Hodgkin lymphoma patients a targeted therapy in the frontline setting is an exciting development.
“The favorable safety and toxicity profile of Bv in combination with chemotherapy for high-risk pediatric patients supports its prospective evaluation in a randomized trial,” the authors concluded, noting that “[l]onger follow-up is required to establish if this approach reduces risk of late-occurring toxicities such as second malignant neoplasms in this cohort of minimally irradiated patients.”
The study was sponsored by Seattle Genetics. The research at St. Jude was funded in part by grants from the National Cancer Institute and ALSAC (American Lebanese Syrian Associated Charities), St. Jude’s fundraising and awareness organization. Dr. Metzger reported research funding from Seattle Genetics. Dr. Krasin reported a consulting or advisory role for Debiopharm Group. Dr. Hudson reported a consulting or advisory role for Oncology Research Information Exchange Network, Princess Máxima Center.
A frontline treatment regimen including brentuximab vedotin (Bv) was well tolerated, was highly effective, and significantly reduced radiation exposure in pediatric patients with high-risk Hodgkin lymphoma, according to the results of an open-label, phase 2 trial.
Of 77 patients enrolled in the investigator-initiated, single-arm, multicenter trial, 27 (35%) achieved complete remission (CR) without radiation at the early response assessment (ERA) after two cycles of therapy, reported Monika L. Metzger, MD, of St. Jude Children’s Research Hospital, Memphis, Tenn. and colleagues. The report was published online in the Journal of Clinical Oncology.
The addition of Bv also resulted in superior event-free survival (97.4%) and overall survival (98.7%) at median follow-up of 3.4 years, compared with previously published pediatric trials, such as the HOD99 trial (EFS and OS of 80.8% and 96.5%, respectively), the authors noted.
Bv chemotherapy
Bv, a targeted anti-CD30 antibody-drug conjugate, received expanded Food and Drug Administration approval in March 2018 for frontline use in combination with chemotherapy in adults with stage III or IV classical Hodgkin lymphoma (HL). The current study is the first to include Bv as part of a chemotherapy regimen in the frontline setting for pediatric classical HL, the authors noted, adding that their primary aim was to reduce prescribed radiation thereby limiting late toxicities associated with radiation in this population.
Patients enrolled were children and adolescents aged 18 years and under with stage IIB, IIIB, or IV classical HL. Bv was used in place of vincristine in the standard OEPA/COPDac (vincristine, etoposide, prednisone, and doxorubicin/cyclophosphamide, vincristine, prednisone, and dacarbazine) frontline regimen for pediatric HL.
The Bv-based chemotherapy regimen was well tolerated and mostly limited to low-grade nausea, vomiting, and constipation, and the most common adverse events were hematologic events occurring mainly during the first two cycles of chemotherapy.
“Notably, we observed a very low incidence of neuropathy (4%) by both clinician and patient report, and no participants required Bv dose reduction or discontinuation,” they wrote, explaining that neuropathy is more common with vincristine.
Radiation exposure
Residual node radiotherapy (RNRT) was delivered at a prescribed dose of 25.5 Gy in 17 fractions of 1.5 Gy, 2-4 weeks after completion of chemotherapy only to nodal sites that did not achieve a CR at the early response assessment (ERA) after two cycles of therapy.
“Patients treated with RNRT had significantly lower integral radiation dose compared with patients treated on HOD99 with [involved-field radiation therapy] (78.1 J vs. 249.6 J),” the authors wrote. “Doses to specific organs were also compared ... [t]he mean heart dose was reduced to 5.29 Gy from 16.9 Gy, and the mean thyroid dose was reduced to 4.46 Gy from 25.9 Gy.”
Women also had significantly less breast radiation exposure (mean of 3.21 Gy vs. 6.85 Gy in HOD99).
One irradiated patient experienced disease progression at the end of therapy, but remained disease free more than 6 years following salvage therapy, and one unexpected death occurred, the authors said.
“We have already reduced the use of radiation for low-risk Hodgkin lymphoma patients. In this study we’ve shown that it is also possible to either omit or reduce the extent of radiation for high-risk patients, using highly focal methods such as proton beam radiation or intensity modulated radiation,” co–senior author Matthew Krasin, MD, of St. Jude’s department of radiation oncology, stated in a press release.
Next steps
Co–senior author Melissa Hudson, MD, the St. Jude cancer survivorship division director, added that “[b]eing able to offer Hodgkin lymphoma patients a targeted therapy in the frontline setting is an exciting development.
“The favorable safety and toxicity profile of Bv in combination with chemotherapy for high-risk pediatric patients supports its prospective evaluation in a randomized trial,” the authors concluded, noting that “[l]onger follow-up is required to establish if this approach reduces risk of late-occurring toxicities such as second malignant neoplasms in this cohort of minimally irradiated patients.”
The study was sponsored by Seattle Genetics. The research at St. Jude was funded in part by grants from the National Cancer Institute and ALSAC (American Lebanese Syrian Associated Charities), St. Jude’s fundraising and awareness organization. Dr. Metzger reported research funding from Seattle Genetics. Dr. Krasin reported a consulting or advisory role for Debiopharm Group. Dr. Hudson reported a consulting or advisory role for Oncology Research Information Exchange Network, Princess Máxima Center.
A frontline treatment regimen including brentuximab vedotin (Bv) was well tolerated, was highly effective, and significantly reduced radiation exposure in pediatric patients with high-risk Hodgkin lymphoma, according to the results of an open-label, phase 2 trial.
Of 77 patients enrolled in the investigator-initiated, single-arm, multicenter trial, 27 (35%) achieved complete remission (CR) without radiation at the early response assessment (ERA) after two cycles of therapy, reported Monika L. Metzger, MD, of St. Jude Children’s Research Hospital, Memphis, Tenn. and colleagues. The report was published online in the Journal of Clinical Oncology.
The addition of Bv also resulted in superior event-free survival (97.4%) and overall survival (98.7%) at median follow-up of 3.4 years, compared with previously published pediatric trials, such as the HOD99 trial (EFS and OS of 80.8% and 96.5%, respectively), the authors noted.
Bv chemotherapy
Bv, a targeted anti-CD30 antibody-drug conjugate, received expanded Food and Drug Administration approval in March 2018 for frontline use in combination with chemotherapy in adults with stage III or IV classical Hodgkin lymphoma (HL). The current study is the first to include Bv as part of a chemotherapy regimen in the frontline setting for pediatric classical HL, the authors noted, adding that their primary aim was to reduce prescribed radiation thereby limiting late toxicities associated with radiation in this population.
Patients enrolled were children and adolescents aged 18 years and under with stage IIB, IIIB, or IV classical HL. Bv was used in place of vincristine in the standard OEPA/COPDac (vincristine, etoposide, prednisone, and doxorubicin/cyclophosphamide, vincristine, prednisone, and dacarbazine) frontline regimen for pediatric HL.
The Bv-based chemotherapy regimen was well tolerated and mostly limited to low-grade nausea, vomiting, and constipation, and the most common adverse events were hematologic events occurring mainly during the first two cycles of chemotherapy.
“Notably, we observed a very low incidence of neuropathy (4%) by both clinician and patient report, and no participants required Bv dose reduction or discontinuation,” they wrote, explaining that neuropathy is more common with vincristine.
Radiation exposure
Residual node radiotherapy (RNRT) was delivered at a prescribed dose of 25.5 Gy in 17 fractions of 1.5 Gy, 2-4 weeks after completion of chemotherapy only to nodal sites that did not achieve a CR at the early response assessment (ERA) after two cycles of therapy.
“Patients treated with RNRT had significantly lower integral radiation dose compared with patients treated on HOD99 with [involved-field radiation therapy] (78.1 J vs. 249.6 J),” the authors wrote. “Doses to specific organs were also compared ... [t]he mean heart dose was reduced to 5.29 Gy from 16.9 Gy, and the mean thyroid dose was reduced to 4.46 Gy from 25.9 Gy.”
Women also had significantly less breast radiation exposure (mean of 3.21 Gy vs. 6.85 Gy in HOD99).
One irradiated patient experienced disease progression at the end of therapy, but remained disease free more than 6 years following salvage therapy, and one unexpected death occurred, the authors said.
“We have already reduced the use of radiation for low-risk Hodgkin lymphoma patients. In this study we’ve shown that it is also possible to either omit or reduce the extent of radiation for high-risk patients, using highly focal methods such as proton beam radiation or intensity modulated radiation,” co–senior author Matthew Krasin, MD, of St. Jude’s department of radiation oncology, stated in a press release.
Next steps
Co–senior author Melissa Hudson, MD, the St. Jude cancer survivorship division director, added that “[b]eing able to offer Hodgkin lymphoma patients a targeted therapy in the frontline setting is an exciting development.
“The favorable safety and toxicity profile of Bv in combination with chemotherapy for high-risk pediatric patients supports its prospective evaluation in a randomized trial,” the authors concluded, noting that “[l]onger follow-up is required to establish if this approach reduces risk of late-occurring toxicities such as second malignant neoplasms in this cohort of minimally irradiated patients.”
The study was sponsored by Seattle Genetics. The research at St. Jude was funded in part by grants from the National Cancer Institute and ALSAC (American Lebanese Syrian Associated Charities), St. Jude’s fundraising and awareness organization. Dr. Metzger reported research funding from Seattle Genetics. Dr. Krasin reported a consulting or advisory role for Debiopharm Group. Dr. Hudson reported a consulting or advisory role for Oncology Research Information Exchange Network, Princess Máxima Center.
FROM THE JOURNAL OF CLINICAL ONCOLOGY
Antifungals during pregnancy and breastfeeding
There are three general classes of antifungal agents (number of agents): azole antifungals (9), echinocandins (3), and polyenes (5). The azole antifungals contain an azole ring and inhibit a wide range of fungi. Echinocandins target the fungal cell wall and the polyenes increase the fungal membrane permeability and lead to cell death.
Pregnancy
Azole antifungals inhibit the growth of fungi. Their trade names and molecular weights:
- Clotrimazole (Mycelex), an over-the-counter product, is available as a topical cream. Several studies have found no association between the drug and birth defects.
- Fluconazole (Diflucan) is a teratogen when doses of ≥400 mg/day are used during the first trimester. Smaller doses do not appear to cause embryo/fetal harm.
- Isavuconazonium (Cresemba) if used in pregnancy, exposure of the embryo/fetus would probably be low based on the >99% plasma protein binding, but the plasma half-life is 130 hours. Moreover, the drug is a potent animal teratogen and is best avoided in pregnancy.
- Itraconazole (Onmel, Sporanox, Tolsura), has a low risk, if any, of structural defects, according to what reported human experience suggests.
- Ketoconazole (Xolegel, Extina, Nizoral; 531) does not appear to adversely effect embryos and fetuses, but the human data are very limited. As with any drug, avoiding organogenesis is the best recommendation.
- Miconazole (Oravig) is usually used topically. Small amounts are absorbed from the vagina. The available evidence suggests that the drug does not increase the risk of congenital malformations.
- Posaconazole (Noxafil) does not have reported use in human pregnancy. The animal reproduction data suggest risk. Based on its molecular weight (about 701), the drug will most likely cross the placenta to the embryo/fetus. Thus, the best course is to avoid the drug during pregnancy, especially in the first trimester.
- Voriconazole (Vfend) has one human report of the drug use in pregnancy. The drug was started at about 19 weeks and continued until the woman gave birth at 35 weeks to a healthy male baby. At 6 months of age, the baby remained normal.
Echinocandin antifungals target the fungal cell wall by inhibiting its synthesis. Their trade names and molecular weights:
- Anidulafungin (Eraxis; 1,140) has no published human data. It is indicated for the treatment of candidemia and other forms of Candida infections. The animal data suggest low risk.
- Caspofungin (Cancidas; 1,213) has no published human data. It is indicated for presumed fungal infections in febrile, neutropenic patients. The animal data are suggestive of human risk, especially if exposure occurs in the first trimester. If possible, maternal treatment should be avoided in the first trimester.
- Micafungin (Mycamine; 1,292) has no published human data. It is indicated for the treatment of patients with esophageal candidiasis and for the prophylaxis of Candida infections in patients undergoing hematopoietic stem cell transplantation. The animal data in one species suggest high risk. If possible, maternal treatment should be avoided in the first trimester.
Polyene antifungals cause depolarization of the fungal cell membrane to increase the membrane permeability, which leads to cell death. Their trade names and molecular weights:
- Amphotericin b (Amphocin; Fungizone; 924) There are three other amphotericin agents: amphotericin b cholesteryl sulfate (Amphotec); amphotericin b lipid complex (Abelcet); amphotericin b liposomal (AmBisome). No reports linking amphotericin b with congenital defects have been found. The drug does cross the human placenta. Although there was a higher rate of spontaneous abortions in rabbits given amphotericin b, there was no fetal harm in rats and rabbits when given amphotericin b lipid complex.
- Nystatin (Bio-Statin; Mycostatin; Nilstat; 926). The drug does not appear to cause embryo-fetal harm. Based on published data, the drug can be used at any time in pregnancy.
Breastfeeding
Small amounts of all the above drugs are probably excreted into breast milk if they are used close to breastfeeding. Most can probably be used during breastfeeding, but there are no data for any of these agents. The safest decision is to not use these drugs when breastfeeding.
Mr. Briggs is clinical professor of pharmacy at the University of California, San Francisco, and adjunct professor of pharmacy at the University of Southern California, Los Angeles, as well as at Washington State University, Spokane. Mr. Briggs said he had no relevant financial disclosures. Email him at [email protected].
There are three general classes of antifungal agents (number of agents): azole antifungals (9), echinocandins (3), and polyenes (5). The azole antifungals contain an azole ring and inhibit a wide range of fungi. Echinocandins target the fungal cell wall and the polyenes increase the fungal membrane permeability and lead to cell death.
Pregnancy
Azole antifungals inhibit the growth of fungi. Their trade names and molecular weights:
- Clotrimazole (Mycelex), an over-the-counter product, is available as a topical cream. Several studies have found no association between the drug and birth defects.
- Fluconazole (Diflucan) is a teratogen when doses of ≥400 mg/day are used during the first trimester. Smaller doses do not appear to cause embryo/fetal harm.
- Isavuconazonium (Cresemba) if used in pregnancy, exposure of the embryo/fetus would probably be low based on the >99% plasma protein binding, but the plasma half-life is 130 hours. Moreover, the drug is a potent animal teratogen and is best avoided in pregnancy.
- Itraconazole (Onmel, Sporanox, Tolsura), has a low risk, if any, of structural defects, according to what reported human experience suggests.
- Ketoconazole (Xolegel, Extina, Nizoral; 531) does not appear to adversely effect embryos and fetuses, but the human data are very limited. As with any drug, avoiding organogenesis is the best recommendation.
- Miconazole (Oravig) is usually used topically. Small amounts are absorbed from the vagina. The available evidence suggests that the drug does not increase the risk of congenital malformations.
- Posaconazole (Noxafil) does not have reported use in human pregnancy. The animal reproduction data suggest risk. Based on its molecular weight (about 701), the drug will most likely cross the placenta to the embryo/fetus. Thus, the best course is to avoid the drug during pregnancy, especially in the first trimester.
- Voriconazole (Vfend) has one human report of the drug use in pregnancy. The drug was started at about 19 weeks and continued until the woman gave birth at 35 weeks to a healthy male baby. At 6 months of age, the baby remained normal.
Echinocandin antifungals target the fungal cell wall by inhibiting its synthesis. Their trade names and molecular weights:
- Anidulafungin (Eraxis; 1,140) has no published human data. It is indicated for the treatment of candidemia and other forms of Candida infections. The animal data suggest low risk.
- Caspofungin (Cancidas; 1,213) has no published human data. It is indicated for presumed fungal infections in febrile, neutropenic patients. The animal data are suggestive of human risk, especially if exposure occurs in the first trimester. If possible, maternal treatment should be avoided in the first trimester.
- Micafungin (Mycamine; 1,292) has no published human data. It is indicated for the treatment of patients with esophageal candidiasis and for the prophylaxis of Candida infections in patients undergoing hematopoietic stem cell transplantation. The animal data in one species suggest high risk. If possible, maternal treatment should be avoided in the first trimester.
Polyene antifungals cause depolarization of the fungal cell membrane to increase the membrane permeability, which leads to cell death. Their trade names and molecular weights:
- Amphotericin b (Amphocin; Fungizone; 924) There are three other amphotericin agents: amphotericin b cholesteryl sulfate (Amphotec); amphotericin b lipid complex (Abelcet); amphotericin b liposomal (AmBisome). No reports linking amphotericin b with congenital defects have been found. The drug does cross the human placenta. Although there was a higher rate of spontaneous abortions in rabbits given amphotericin b, there was no fetal harm in rats and rabbits when given amphotericin b lipid complex.
- Nystatin (Bio-Statin; Mycostatin; Nilstat; 926). The drug does not appear to cause embryo-fetal harm. Based on published data, the drug can be used at any time in pregnancy.
Breastfeeding
Small amounts of all the above drugs are probably excreted into breast milk if they are used close to breastfeeding. Most can probably be used during breastfeeding, but there are no data for any of these agents. The safest decision is to not use these drugs when breastfeeding.
Mr. Briggs is clinical professor of pharmacy at the University of California, San Francisco, and adjunct professor of pharmacy at the University of Southern California, Los Angeles, as well as at Washington State University, Spokane. Mr. Briggs said he had no relevant financial disclosures. Email him at [email protected].
There are three general classes of antifungal agents (number of agents): azole antifungals (9), echinocandins (3), and polyenes (5). The azole antifungals contain an azole ring and inhibit a wide range of fungi. Echinocandins target the fungal cell wall and the polyenes increase the fungal membrane permeability and lead to cell death.
Pregnancy
Azole antifungals inhibit the growth of fungi. Their trade names and molecular weights:
- Clotrimazole (Mycelex), an over-the-counter product, is available as a topical cream. Several studies have found no association between the drug and birth defects.
- Fluconazole (Diflucan) is a teratogen when doses of ≥400 mg/day are used during the first trimester. Smaller doses do not appear to cause embryo/fetal harm.
- Isavuconazonium (Cresemba) if used in pregnancy, exposure of the embryo/fetus would probably be low based on the >99% plasma protein binding, but the plasma half-life is 130 hours. Moreover, the drug is a potent animal teratogen and is best avoided in pregnancy.
- Itraconazole (Onmel, Sporanox, Tolsura), has a low risk, if any, of structural defects, according to what reported human experience suggests.
- Ketoconazole (Xolegel, Extina, Nizoral; 531) does not appear to adversely effect embryos and fetuses, but the human data are very limited. As with any drug, avoiding organogenesis is the best recommendation.
- Miconazole (Oravig) is usually used topically. Small amounts are absorbed from the vagina. The available evidence suggests that the drug does not increase the risk of congenital malformations.
- Posaconazole (Noxafil) does not have reported use in human pregnancy. The animal reproduction data suggest risk. Based on its molecular weight (about 701), the drug will most likely cross the placenta to the embryo/fetus. Thus, the best course is to avoid the drug during pregnancy, especially in the first trimester.
- Voriconazole (Vfend) has one human report of the drug use in pregnancy. The drug was started at about 19 weeks and continued until the woman gave birth at 35 weeks to a healthy male baby. At 6 months of age, the baby remained normal.
Echinocandin antifungals target the fungal cell wall by inhibiting its synthesis. Their trade names and molecular weights:
- Anidulafungin (Eraxis; 1,140) has no published human data. It is indicated for the treatment of candidemia and other forms of Candida infections. The animal data suggest low risk.
- Caspofungin (Cancidas; 1,213) has no published human data. It is indicated for presumed fungal infections in febrile, neutropenic patients. The animal data are suggestive of human risk, especially if exposure occurs in the first trimester. If possible, maternal treatment should be avoided in the first trimester.
- Micafungin (Mycamine; 1,292) has no published human data. It is indicated for the treatment of patients with esophageal candidiasis and for the prophylaxis of Candida infections in patients undergoing hematopoietic stem cell transplantation. The animal data in one species suggest high risk. If possible, maternal treatment should be avoided in the first trimester.
Polyene antifungals cause depolarization of the fungal cell membrane to increase the membrane permeability, which leads to cell death. Their trade names and molecular weights:
- Amphotericin b (Amphocin; Fungizone; 924) There are three other amphotericin agents: amphotericin b cholesteryl sulfate (Amphotec); amphotericin b lipid complex (Abelcet); amphotericin b liposomal (AmBisome). No reports linking amphotericin b with congenital defects have been found. The drug does cross the human placenta. Although there was a higher rate of spontaneous abortions in rabbits given amphotericin b, there was no fetal harm in rats and rabbits when given amphotericin b lipid complex.
- Nystatin (Bio-Statin; Mycostatin; Nilstat; 926). The drug does not appear to cause embryo-fetal harm. Based on published data, the drug can be used at any time in pregnancy.
Breastfeeding
Small amounts of all the above drugs are probably excreted into breast milk if they are used close to breastfeeding. Most can probably be used during breastfeeding, but there are no data for any of these agents. The safest decision is to not use these drugs when breastfeeding.
Mr. Briggs is clinical professor of pharmacy at the University of California, San Francisco, and adjunct professor of pharmacy at the University of Southern California, Los Angeles, as well as at Washington State University, Spokane. Mr. Briggs said he had no relevant financial disclosures. Email him at [email protected].
Study: Spanking may change children’s brains
Rare is the parent who has never so much as thought about spanking an unruly child. But a new study provides another reason to avoid corporal punishment: Spanking may cause changes in the same areas of a child’s brain that are affected by more severe physical and sexual abuse.
Previous research has consistently found links between spanking and behavioral problems, aggression, depression, and anxiety, says Jorge Cuartas, a doctoral candidate at the Harvard Graduate School of Education and first author of the study. “We wanted to look at one potential mechanism, brain development, that might explain how corporal punishment can impact children’s behavior and cognitive development.”
The study, published in Child Development, used functional MRIs to map brain changes in 147 tweens who’d never experienced physical or sexual abuse. Researchers tracked which parts of the children’s brains activated in response to neutral or fearful facial expressions. When shown pictures of someone looking fearful, kids who reported having been spanked had a larger response in certain parts of the brain than kids who hadn’t been. Those areas drive the response to environmental cues, recognizing threats and reacting to them. If a child’s brain overreacts, behavioral challenges can result.
“We saw those changes in the same areas as more severe forms of abuse or domestic violence. It suggests the difference is of degree rather than type,” Mr. Cuartas says. As far as a child’s brain is concerned, “It’s all violence.”
It’s a significant finding because many parents don’t think of spanking as being violent, says Vincent J. Palusci, MD, a pediatrician and editor-in-chief of the journal Child Maltreatment. “We want to raise kids who are happy and healthy, and many parents who use spanking are doing it with that goal.”
Spanking in the U.S.
Around the world, 62 states and countries have outlawed corporal punishment. While the U.S. has no such protections, both the American Academy of Pediatrics and the American Psychological Association have condemned the practice. Acceptance of spanking seems to be shrinking: The percentage of parents in this country who say they spank their children is trending downward. In 1993, 50% of parents surveyed said they did, but by 2017 that number had fallen to 35%. Still far too many, Mr. Cuartas and Dr. Palusci say, but a promising trend.
“While we wouldn’t as parents want to hurt our kids,” Dr. Palusci says, “we need to understand that spanking can be just as bad as things we’d never do.”
Discipline vs. punishment
For some parents, it may require a shift in thinking, differentiating between discipline and punishment. “Discipline changes behavior – it teaches positive behavior, empathy, essential social skills. But that’s different from punishment,” Mr. Cuartas says. “That makes somebody feel pain or shame. We have to start thinking about spanking as punishment.”
That can be difficult, especially for adults who’ve been spanked themselves. They may believe that since they turned out fine, spanking must be fine, too. But the study doesn’t suggest that every child who’s spanked will have these difficulties – it just shows they happen, Mr. Cuartas says. “Compare this to smoking. We all know someone who smokes who’s healthy, but that doesn’t mean smoking is good,” he says. “Individual cases aren’t enough to understand whether certain experiences are good or bad.”
Dr. Palusci draws parallels to the advice pregnant women receive about taking medications: If it hasn’t been tested in pregnancy specifically, no amount can be considered safe. “We don’t have the studies to say how much spanking is dangerous, so we have to think that any amount has this potential.”
A version of this article first appeared on Medscape.com.
Rare is the parent who has never so much as thought about spanking an unruly child. But a new study provides another reason to avoid corporal punishment: Spanking may cause changes in the same areas of a child’s brain that are affected by more severe physical and sexual abuse.
Previous research has consistently found links between spanking and behavioral problems, aggression, depression, and anxiety, says Jorge Cuartas, a doctoral candidate at the Harvard Graduate School of Education and first author of the study. “We wanted to look at one potential mechanism, brain development, that might explain how corporal punishment can impact children’s behavior and cognitive development.”
The study, published in Child Development, used functional MRIs to map brain changes in 147 tweens who’d never experienced physical or sexual abuse. Researchers tracked which parts of the children’s brains activated in response to neutral or fearful facial expressions. When shown pictures of someone looking fearful, kids who reported having been spanked had a larger response in certain parts of the brain than kids who hadn’t been. Those areas drive the response to environmental cues, recognizing threats and reacting to them. If a child’s brain overreacts, behavioral challenges can result.
“We saw those changes in the same areas as more severe forms of abuse or domestic violence. It suggests the difference is of degree rather than type,” Mr. Cuartas says. As far as a child’s brain is concerned, “It’s all violence.”
It’s a significant finding because many parents don’t think of spanking as being violent, says Vincent J. Palusci, MD, a pediatrician and editor-in-chief of the journal Child Maltreatment. “We want to raise kids who are happy and healthy, and many parents who use spanking are doing it with that goal.”
Spanking in the U.S.
Around the world, 62 states and countries have outlawed corporal punishment. While the U.S. has no such protections, both the American Academy of Pediatrics and the American Psychological Association have condemned the practice. Acceptance of spanking seems to be shrinking: The percentage of parents in this country who say they spank their children is trending downward. In 1993, 50% of parents surveyed said they did, but by 2017 that number had fallen to 35%. Still far too many, Mr. Cuartas and Dr. Palusci say, but a promising trend.
“While we wouldn’t as parents want to hurt our kids,” Dr. Palusci says, “we need to understand that spanking can be just as bad as things we’d never do.”
Discipline vs. punishment
For some parents, it may require a shift in thinking, differentiating between discipline and punishment. “Discipline changes behavior – it teaches positive behavior, empathy, essential social skills. But that’s different from punishment,” Mr. Cuartas says. “That makes somebody feel pain or shame. We have to start thinking about spanking as punishment.”
That can be difficult, especially for adults who’ve been spanked themselves. They may believe that since they turned out fine, spanking must be fine, too. But the study doesn’t suggest that every child who’s spanked will have these difficulties – it just shows they happen, Mr. Cuartas says. “Compare this to smoking. We all know someone who smokes who’s healthy, but that doesn’t mean smoking is good,” he says. “Individual cases aren’t enough to understand whether certain experiences are good or bad.”
Dr. Palusci draws parallels to the advice pregnant women receive about taking medications: If it hasn’t been tested in pregnancy specifically, no amount can be considered safe. “We don’t have the studies to say how much spanking is dangerous, so we have to think that any amount has this potential.”
A version of this article first appeared on Medscape.com.
Rare is the parent who has never so much as thought about spanking an unruly child. But a new study provides another reason to avoid corporal punishment: Spanking may cause changes in the same areas of a child’s brain that are affected by more severe physical and sexual abuse.
Previous research has consistently found links between spanking and behavioral problems, aggression, depression, and anxiety, says Jorge Cuartas, a doctoral candidate at the Harvard Graduate School of Education and first author of the study. “We wanted to look at one potential mechanism, brain development, that might explain how corporal punishment can impact children’s behavior and cognitive development.”
The study, published in Child Development, used functional MRIs to map brain changes in 147 tweens who’d never experienced physical or sexual abuse. Researchers tracked which parts of the children’s brains activated in response to neutral or fearful facial expressions. When shown pictures of someone looking fearful, kids who reported having been spanked had a larger response in certain parts of the brain than kids who hadn’t been. Those areas drive the response to environmental cues, recognizing threats and reacting to them. If a child’s brain overreacts, behavioral challenges can result.
“We saw those changes in the same areas as more severe forms of abuse or domestic violence. It suggests the difference is of degree rather than type,” Mr. Cuartas says. As far as a child’s brain is concerned, “It’s all violence.”
It’s a significant finding because many parents don’t think of spanking as being violent, says Vincent J. Palusci, MD, a pediatrician and editor-in-chief of the journal Child Maltreatment. “We want to raise kids who are happy and healthy, and many parents who use spanking are doing it with that goal.”
Spanking in the U.S.
Around the world, 62 states and countries have outlawed corporal punishment. While the U.S. has no such protections, both the American Academy of Pediatrics and the American Psychological Association have condemned the practice. Acceptance of spanking seems to be shrinking: The percentage of parents in this country who say they spank their children is trending downward. In 1993, 50% of parents surveyed said they did, but by 2017 that number had fallen to 35%. Still far too many, Mr. Cuartas and Dr. Palusci say, but a promising trend.
“While we wouldn’t as parents want to hurt our kids,” Dr. Palusci says, “we need to understand that spanking can be just as bad as things we’d never do.”
Discipline vs. punishment
For some parents, it may require a shift in thinking, differentiating between discipline and punishment. “Discipline changes behavior – it teaches positive behavior, empathy, essential social skills. But that’s different from punishment,” Mr. Cuartas says. “That makes somebody feel pain or shame. We have to start thinking about spanking as punishment.”
That can be difficult, especially for adults who’ve been spanked themselves. They may believe that since they turned out fine, spanking must be fine, too. But the study doesn’t suggest that every child who’s spanked will have these difficulties – it just shows they happen, Mr. Cuartas says. “Compare this to smoking. We all know someone who smokes who’s healthy, but that doesn’t mean smoking is good,” he says. “Individual cases aren’t enough to understand whether certain experiences are good or bad.”
Dr. Palusci draws parallels to the advice pregnant women receive about taking medications: If it hasn’t been tested in pregnancy specifically, no amount can be considered safe. “We don’t have the studies to say how much spanking is dangerous, so we have to think that any amount has this potential.”
A version of this article first appeared on Medscape.com.
Children’s share of COVID-19 burden has never been higher
For the first time since the pandemic began, children’s share of weekly COVID-19 cases topped 20% in the United States, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.
That represented 20.6% of all new cases for the week, eclipsing the previous high of 19.1% recorded just 3 weeks ago, based on data collected by the AAP and CHA from 49 states, the District of Columbia, New York City, Puerto Rico, and Guam.
Cumulative cases of COVID-19 in children exceed 3.6 million in those jurisdictions, which is 13.6% of the total reported among all ages, and the overall rate of coronavirus infection is 4,824 cases per 100,000 children in the population, the AAP and CHA said in their weekly COVID-19 report.
Among the 53 reporting jurisdictions, North Dakota has the highest cumulative rate, 9,167 per 100,000 children, followed by Tennessee (8,580), South Carolina (7,948), South Dakota (7,938), and Connecticut (7,707). Children’s share of cumulative cases is highest in Vermont, at 21.9%, with Alaska next at 20.0% and Wyoming at 19.2%, the AAP and CHA said.
Since the beginning of April, the largest local increases in cases reported came in Michigan (21.6%), Vermont (15.9%), and Maine (15.6%). Nationally, the increase over those same 2 weeks is just under 5%, the two organizations noted.
There were 5 deaths among children during the week of April 9-15, bringing the total to 297, but the recent increases in cases have not affected the long-term trends for serious illness. The death rate for children with COVID-19 has been 0.01% since early November – 43 states, New York City, Puerto Rico, and Guam are reporting such data – and the hospitalization rate has been 0.8% since mid-January in 24 states and New York City, the AAP/CHA data show.
For the first time since the pandemic began, children’s share of weekly COVID-19 cases topped 20% in the United States, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.
That represented 20.6% of all new cases for the week, eclipsing the previous high of 19.1% recorded just 3 weeks ago, based on data collected by the AAP and CHA from 49 states, the District of Columbia, New York City, Puerto Rico, and Guam.
Cumulative cases of COVID-19 in children exceed 3.6 million in those jurisdictions, which is 13.6% of the total reported among all ages, and the overall rate of coronavirus infection is 4,824 cases per 100,000 children in the population, the AAP and CHA said in their weekly COVID-19 report.
Among the 53 reporting jurisdictions, North Dakota has the highest cumulative rate, 9,167 per 100,000 children, followed by Tennessee (8,580), South Carolina (7,948), South Dakota (7,938), and Connecticut (7,707). Children’s share of cumulative cases is highest in Vermont, at 21.9%, with Alaska next at 20.0% and Wyoming at 19.2%, the AAP and CHA said.
Since the beginning of April, the largest local increases in cases reported came in Michigan (21.6%), Vermont (15.9%), and Maine (15.6%). Nationally, the increase over those same 2 weeks is just under 5%, the two organizations noted.
There were 5 deaths among children during the week of April 9-15, bringing the total to 297, but the recent increases in cases have not affected the long-term trends for serious illness. The death rate for children with COVID-19 has been 0.01% since early November – 43 states, New York City, Puerto Rico, and Guam are reporting such data – and the hospitalization rate has been 0.8% since mid-January in 24 states and New York City, the AAP/CHA data show.
For the first time since the pandemic began, children’s share of weekly COVID-19 cases topped 20% in the United States, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.
That represented 20.6% of all new cases for the week, eclipsing the previous high of 19.1% recorded just 3 weeks ago, based on data collected by the AAP and CHA from 49 states, the District of Columbia, New York City, Puerto Rico, and Guam.
Cumulative cases of COVID-19 in children exceed 3.6 million in those jurisdictions, which is 13.6% of the total reported among all ages, and the overall rate of coronavirus infection is 4,824 cases per 100,000 children in the population, the AAP and CHA said in their weekly COVID-19 report.
Among the 53 reporting jurisdictions, North Dakota has the highest cumulative rate, 9,167 per 100,000 children, followed by Tennessee (8,580), South Carolina (7,948), South Dakota (7,938), and Connecticut (7,707). Children’s share of cumulative cases is highest in Vermont, at 21.9%, with Alaska next at 20.0% and Wyoming at 19.2%, the AAP and CHA said.
Since the beginning of April, the largest local increases in cases reported came in Michigan (21.6%), Vermont (15.9%), and Maine (15.6%). Nationally, the increase over those same 2 weeks is just under 5%, the two organizations noted.
There were 5 deaths among children during the week of April 9-15, bringing the total to 297, but the recent increases in cases have not affected the long-term trends for serious illness. The death rate for children with COVID-19 has been 0.01% since early November – 43 states, New York City, Puerto Rico, and Guam are reporting such data – and the hospitalization rate has been 0.8% since mid-January in 24 states and New York City, the AAP/CHA data show.
Teen tanning bed ban would prevent more than 15,000 melanoma cases
and cost less than other, well-established public health interventions, according to a microsimulation of that age group’s virtual life course.
“Even with extensive sensitivity analyses on the costs of inspections, noncompliance with a ban, and the risk of developing melanoma in those who have used tanning beds, a ban can be considered highly cost effective,” Antoine Eskander, MD, ScM, of the University of Toronto, and associates said in Cancer.
Compared with no ban, such an intervention could save over $205 million in lifetime health care costs among the 17.1 million young people (based on the 2010 Census population) who would be affected, they said.
The more than 15,000 melanoma cases and 3,300 recurrences prevented would save $12 per average minor after adjusting for societal costs, such as lost productivity, formal and informal health care, economic losses to the tanning bed industry, and the need for monitoring, the investigators reported.
Switching to quality-adjusted life-years shows an improvement of 0.0002 QALYs per child for a ban, based on an overall cost of almost $24.9 per QALY, compared with no ban, they said, which makes it “more cost effective than many well-established public health interventions”:
- Processed meats taxation ($270/QALY).
- Smoking education campaign ($1,337/QALY).
- Cervical cancer screening ($2,166/QALY).
- Breast cancer screening ($29,284/QALY).
- Lung cancer screening ($49,200-$96,700/QALY).
Among the many parameters included in the microsimulation were the odds ratio of developing melanoma from exposure to tanning beds before age 25 (1.35), melanoma stage at presentation, risk of recurrence, and the cost of four annual inspections for each of the nation’s more than 13,000 tanning salons, Dr. Eskander and associates explained.
and cost less than other, well-established public health interventions, according to a microsimulation of that age group’s virtual life course.
“Even with extensive sensitivity analyses on the costs of inspections, noncompliance with a ban, and the risk of developing melanoma in those who have used tanning beds, a ban can be considered highly cost effective,” Antoine Eskander, MD, ScM, of the University of Toronto, and associates said in Cancer.
Compared with no ban, such an intervention could save over $205 million in lifetime health care costs among the 17.1 million young people (based on the 2010 Census population) who would be affected, they said.
The more than 15,000 melanoma cases and 3,300 recurrences prevented would save $12 per average minor after adjusting for societal costs, such as lost productivity, formal and informal health care, economic losses to the tanning bed industry, and the need for monitoring, the investigators reported.
Switching to quality-adjusted life-years shows an improvement of 0.0002 QALYs per child for a ban, based on an overall cost of almost $24.9 per QALY, compared with no ban, they said, which makes it “more cost effective than many well-established public health interventions”:
- Processed meats taxation ($270/QALY).
- Smoking education campaign ($1,337/QALY).
- Cervical cancer screening ($2,166/QALY).
- Breast cancer screening ($29,284/QALY).
- Lung cancer screening ($49,200-$96,700/QALY).
Among the many parameters included in the microsimulation were the odds ratio of developing melanoma from exposure to tanning beds before age 25 (1.35), melanoma stage at presentation, risk of recurrence, and the cost of four annual inspections for each of the nation’s more than 13,000 tanning salons, Dr. Eskander and associates explained.
and cost less than other, well-established public health interventions, according to a microsimulation of that age group’s virtual life course.
“Even with extensive sensitivity analyses on the costs of inspections, noncompliance with a ban, and the risk of developing melanoma in those who have used tanning beds, a ban can be considered highly cost effective,” Antoine Eskander, MD, ScM, of the University of Toronto, and associates said in Cancer.
Compared with no ban, such an intervention could save over $205 million in lifetime health care costs among the 17.1 million young people (based on the 2010 Census population) who would be affected, they said.
The more than 15,000 melanoma cases and 3,300 recurrences prevented would save $12 per average minor after adjusting for societal costs, such as lost productivity, formal and informal health care, economic losses to the tanning bed industry, and the need for monitoring, the investigators reported.
Switching to quality-adjusted life-years shows an improvement of 0.0002 QALYs per child for a ban, based on an overall cost of almost $24.9 per QALY, compared with no ban, they said, which makes it “more cost effective than many well-established public health interventions”:
- Processed meats taxation ($270/QALY).
- Smoking education campaign ($1,337/QALY).
- Cervical cancer screening ($2,166/QALY).
- Breast cancer screening ($29,284/QALY).
- Lung cancer screening ($49,200-$96,700/QALY).
Among the many parameters included in the microsimulation were the odds ratio of developing melanoma from exposure to tanning beds before age 25 (1.35), melanoma stage at presentation, risk of recurrence, and the cost of four annual inspections for each of the nation’s more than 13,000 tanning salons, Dr. Eskander and associates explained.
FROM CANCER
Epidural use shows no association with autism spectrum disorder in children
Exposure to epidural analgesia during labor did not show a link to a later diagnosis of autism spectrum disorder (ASD) in a population-based cohort study published April 19 in JAMA Pediatrics.
Though the initial analysis showed an association, adjustment for a wide range of demographic, medical, and birth factors eliminated the link. The authors note that their findings contrast with those of a cohort study in California published in the same journal last year.
“It is possible that residual confounding explains this positive association because key perinatal variables, including induction of labor, labor dystocia, and fetal distress, were not included as confounders in that study,” write Elizabeth Wall-Wieler, PhD, of the University of Manitoba in Winnipeg and her colleagues. “To limit potential bias from unmeasured confounders, we included the aforementioned variables within a wide set of potential confounders.”
The researchers analyzed linked datasets from all singleton infants born in a hospital from 2005 to 2016 in Manitoba, Canada, to compare use of epidurals during birth with diagnoses of ASD before 18 months of age. The four data sources included the Statistics Canada, Manitoba Education, Manitoba Families, and Manitoba Health, Seniors and Active Living, which includes the Manitoba Health Insurance Registry, Medical Services, Hospital Abstracts, and Drug Program Information Network. The researchers excluded women with cesarean deliveries because it was not possible to differentiate between scheduled and unscheduled cesarean deliveries.
Among 123,175 children born to mothers with an average age of 28 years, 38.2% had been exposed to epidural analgesia during their labor. Autism diagnoses occurred among 2.1% of those exposed to epidurals and 1.7% of those not exposed to epidurals. After the researchers controlled for a range of potential confounders, the difference became nonsignificant (hazard ratio, 1.08).
The adjusted analysis accounted for mother’s age; high school degree; marital status; neighborhood socioeconomic status; receipt of public assistance during pregnancy; and presence of diabetes, hypertension, anxiety, or depression in the year before the birth. Other covariates included in the adjustment included the following pregnancy factors: “parity, gestational diabetes, gestational hypertension or preeclampsia, self-reported and diagnosed drug use, smoking, alcohol use, premature rupture of membranes, antepartum hemorrhage, infection of the amniotic sac and membrane, urogenital infection, antenatal mental health hospitalization, hypothyroidism, benzodiazepine use, antidepressant use, and antiepileptic use.” The researchers also included birth year, labor induction or augmentation, labor dystocia, fetal distress or macrosomia, gestational age at birth, the infant’s sex, and hospital type.
“There were substantial differences in maternal sociodemographic, preexisting, pregnancy-related, and birth-specific covariates between births who were exposed vs. nonexposed to epidural labor analgesia,” the authors report. “For example, births exposed to epidural labor analgesia were more likely to be nulliparous, have premature rupture of membranes, antepartum hemorrhage, induction of labor, augmentation of labor, and fetal distress.”
To take family history of ASD into account, the researchers also compared siblings who were and were not exposed to an epidural during labor: 80,459 children in the cohort had at least one sibling in it as well. The researchers still found no association between use of an epidural and a subsequent autism diagnosis (HR, 0.97). The authors conducted several sensitivity analyses for first-born children, those with two or more diagnostic codes for ASD on different days, and women with missing data on high school completion or marital status who delivered at 37 weeks of gestation or later; these results consistently showed no association between epidurals and ASD.
The findings are important but unsurprising, said Scott M. Myers, MD, a neurodevelopmental pediatrician and associate professor at the Geisinger Commonwealth School of Medicine’s Autism & Developmental Medicine Institute in Scranton, Pa. Dr. Myers, who was not involved in the study, said it was strengthened by the inclusion of a wide range of covariates and multiple sensitivity analyses.
“It confirms the suspicion of many experts who were skeptical of the association reported previously, that the small increase in ASD in offspring of mothers who had epidural labor analgesia was likely attributable to other factors that differed substantially between the exposed and unexposed groups,” Dr. Myers said in an interview. “The plausibility of exposure to epidural analgesia in labor having a large effect on ASD risk and accounting for changes in ASD prevalence over time is low.”
It’s possible to hypothesize about subgroups that are genetically susceptible to certain environmental risk factors, including epidurals, but such an association should show up in epidemiological research if the subgroup is large enough.
“For example, epidural labor analgesia can prolong labor, and if it were a significant risk factor for ASD, one might expect that longer labor would have been demonstrated to be associated with increased ASD risk, but this has been examined and is not the case,” he said. He also noted that other perinatal factors previously linked to ASD, such as cesarean delivery, may result from a shared factor that affects risk of both ASD and cesarean delivery.
“Although there haven’t been enough systematic postmortem brain studies to be certain that the findings are generalizable, the most consistent neuropathological findings associated with ASD clearly arise long before birth,”Dr. Myers said. “The information I would provide to a concerned pregnant mother is that the current weight of the evidence does not suggest an association between epidural analgesia in labor and increased likelihood of ASD in offspring, much less a causal association.”
Clay Jones, MD, a hospitalist specializing in neonatal-perinatal medicine at Newton (Mass.)–Wellesley Hospital, was not involved in the research and offered a similar assessment of the findings.
“Our understanding of autism is that it is more of a genetic condition which interferes with the organization of brain architecture, so the evidence for any environmental cause would need to be robust for it to change medical practice or our recommendations to the general public,” Dr. Jones said in an interview. Compared to the previous California study, “this new research is larger and better accounts for confounding variables that might increase the risk of a child eventually being diagnosed with autism,” he said.
While recognizing the value in conducting studies to uncover any potential environmental factors contributing to autism diagnoses, Dr. Jones also addressed science communication challenges related to this research.
“While many of these studies are valid early efforts at honing in on potential risk factors, they can be overhyped and lead to increased patient anxiety and potentially harmful changes in behavior,” Dr. Jones said. “There is already a significant amount of pressure for many women to avoid certain safe and effective pain reduction strategies during labor, such as epidural labor analgesia. This pressure is often based on misunderstandings of the risks, pseudoscientific beliefs regarding the benefits of so-called ‘natural childbirth,’ and blatant misogyny. I hope that this new study helps to reassure women that it is okay to request to be more comfortable during their labor experience with the help of epidural labor analgesia.”
The authors of the study also noted the benefits of epidural use during labor.
“It is recognized as the most effective method of providing labor analgesia,” they write. In addition, “the presence of an indwelling epidural catheter allows epidural anesthesia to be administered for an unplanned (intrapartum) cesarean delivery, thus secondarily avoiding any maternal complications or fetal exposure from general anesthesia.”
JAMA Pediatrics editor Dimitri A. Christakis, MD, MPH, wrote his second-ever Editor’s Note about this topic after the journal published two similar studies with different conclusions.
“Because there will never be experimental studies of environmental exposures, we are left with imperfect observational studies that are always at risk for residual confounding, especially when observed effect sizes are small,” Dr. Christakis writes. “Science is an imperfect and iterative process, and our responsibility as journal editors is to manage the process as best we can. Publishing two conflicting studies in such a short time frame serves as testament that we recognize the process for what it is.” His personal opinion is that any association has yet to be definitively established but that the journal will publish the study if a more definitive one is done.
In considering potentially contributing environmental risk factors to ASD, Gillian E. Hanley, PhD, of the University of British Columbia in Vancouver and two colleagues write that “meta-analyses have been unable to identify a single perinatal and neonatal factor associated with ASD risk, although some evidence suggested that exposure to a broad class of conditions such as fetal presentation, umbilical-cord complications, fetal distress, or multiple births, reflecting compromised neonatal health, may increase risk.”
Yet, they add, these studies are inconsistent in their effect size, likely because of differences in study methodology, comparison groups, sample size, diagnostic criteria, and exposure assessment.
“Thus, we continue to ask questions about whether biologically plausible associations exist or whether associations reflect residual confounding related to yet-to-be-determined maternal genetic or environmental factors,” Dr. Hanley and her colleagues write. They discuss precise differences between the California and Manitoba studies and the inevitability of selection bias since people who choose an epidural will differ in other ways from those who don’t.
“Epidural labor analgesia is an extremely effective approach to obstetric analgesia, and we have a collective responsibility to understand whether it is a safe option that sets a healthy developmental pathway well into childhood,” Dr. Hanley and her colleagues conclude. “Women have the right to make a truly informed choice about their pain relief during labor.”
The research was funded by the Canadian Institutes of Health. One author reported receiving personal fees or grants from Aetion, Alosa Foundation, Lilly, GSK, Pacira, and Takeda. No other authors had disclosures. Dr. Jones, Dr. Myers, and the editorial authors had no disclosures.
Exposure to epidural analgesia during labor did not show a link to a later diagnosis of autism spectrum disorder (ASD) in a population-based cohort study published April 19 in JAMA Pediatrics.
Though the initial analysis showed an association, adjustment for a wide range of demographic, medical, and birth factors eliminated the link. The authors note that their findings contrast with those of a cohort study in California published in the same journal last year.
“It is possible that residual confounding explains this positive association because key perinatal variables, including induction of labor, labor dystocia, and fetal distress, were not included as confounders in that study,” write Elizabeth Wall-Wieler, PhD, of the University of Manitoba in Winnipeg and her colleagues. “To limit potential bias from unmeasured confounders, we included the aforementioned variables within a wide set of potential confounders.”
The researchers analyzed linked datasets from all singleton infants born in a hospital from 2005 to 2016 in Manitoba, Canada, to compare use of epidurals during birth with diagnoses of ASD before 18 months of age. The four data sources included the Statistics Canada, Manitoba Education, Manitoba Families, and Manitoba Health, Seniors and Active Living, which includes the Manitoba Health Insurance Registry, Medical Services, Hospital Abstracts, and Drug Program Information Network. The researchers excluded women with cesarean deliveries because it was not possible to differentiate between scheduled and unscheduled cesarean deliveries.
Among 123,175 children born to mothers with an average age of 28 years, 38.2% had been exposed to epidural analgesia during their labor. Autism diagnoses occurred among 2.1% of those exposed to epidurals and 1.7% of those not exposed to epidurals. After the researchers controlled for a range of potential confounders, the difference became nonsignificant (hazard ratio, 1.08).
The adjusted analysis accounted for mother’s age; high school degree; marital status; neighborhood socioeconomic status; receipt of public assistance during pregnancy; and presence of diabetes, hypertension, anxiety, or depression in the year before the birth. Other covariates included in the adjustment included the following pregnancy factors: “parity, gestational diabetes, gestational hypertension or preeclampsia, self-reported and diagnosed drug use, smoking, alcohol use, premature rupture of membranes, antepartum hemorrhage, infection of the amniotic sac and membrane, urogenital infection, antenatal mental health hospitalization, hypothyroidism, benzodiazepine use, antidepressant use, and antiepileptic use.” The researchers also included birth year, labor induction or augmentation, labor dystocia, fetal distress or macrosomia, gestational age at birth, the infant’s sex, and hospital type.
“There were substantial differences in maternal sociodemographic, preexisting, pregnancy-related, and birth-specific covariates between births who were exposed vs. nonexposed to epidural labor analgesia,” the authors report. “For example, births exposed to epidural labor analgesia were more likely to be nulliparous, have premature rupture of membranes, antepartum hemorrhage, induction of labor, augmentation of labor, and fetal distress.”
To take family history of ASD into account, the researchers also compared siblings who were and were not exposed to an epidural during labor: 80,459 children in the cohort had at least one sibling in it as well. The researchers still found no association between use of an epidural and a subsequent autism diagnosis (HR, 0.97). The authors conducted several sensitivity analyses for first-born children, those with two or more diagnostic codes for ASD on different days, and women with missing data on high school completion or marital status who delivered at 37 weeks of gestation or later; these results consistently showed no association between epidurals and ASD.
The findings are important but unsurprising, said Scott M. Myers, MD, a neurodevelopmental pediatrician and associate professor at the Geisinger Commonwealth School of Medicine’s Autism & Developmental Medicine Institute in Scranton, Pa. Dr. Myers, who was not involved in the study, said it was strengthened by the inclusion of a wide range of covariates and multiple sensitivity analyses.
“It confirms the suspicion of many experts who were skeptical of the association reported previously, that the small increase in ASD in offspring of mothers who had epidural labor analgesia was likely attributable to other factors that differed substantially between the exposed and unexposed groups,” Dr. Myers said in an interview. “The plausibility of exposure to epidural analgesia in labor having a large effect on ASD risk and accounting for changes in ASD prevalence over time is low.”
It’s possible to hypothesize about subgroups that are genetically susceptible to certain environmental risk factors, including epidurals, but such an association should show up in epidemiological research if the subgroup is large enough.
“For example, epidural labor analgesia can prolong labor, and if it were a significant risk factor for ASD, one might expect that longer labor would have been demonstrated to be associated with increased ASD risk, but this has been examined and is not the case,” he said. He also noted that other perinatal factors previously linked to ASD, such as cesarean delivery, may result from a shared factor that affects risk of both ASD and cesarean delivery.
“Although there haven’t been enough systematic postmortem brain studies to be certain that the findings are generalizable, the most consistent neuropathological findings associated with ASD clearly arise long before birth,”Dr. Myers said. “The information I would provide to a concerned pregnant mother is that the current weight of the evidence does not suggest an association between epidural analgesia in labor and increased likelihood of ASD in offspring, much less a causal association.”
Clay Jones, MD, a hospitalist specializing in neonatal-perinatal medicine at Newton (Mass.)–Wellesley Hospital, was not involved in the research and offered a similar assessment of the findings.
“Our understanding of autism is that it is more of a genetic condition which interferes with the organization of brain architecture, so the evidence for any environmental cause would need to be robust for it to change medical practice or our recommendations to the general public,” Dr. Jones said in an interview. Compared to the previous California study, “this new research is larger and better accounts for confounding variables that might increase the risk of a child eventually being diagnosed with autism,” he said.
While recognizing the value in conducting studies to uncover any potential environmental factors contributing to autism diagnoses, Dr. Jones also addressed science communication challenges related to this research.
“While many of these studies are valid early efforts at honing in on potential risk factors, they can be overhyped and lead to increased patient anxiety and potentially harmful changes in behavior,” Dr. Jones said. “There is already a significant amount of pressure for many women to avoid certain safe and effective pain reduction strategies during labor, such as epidural labor analgesia. This pressure is often based on misunderstandings of the risks, pseudoscientific beliefs regarding the benefits of so-called ‘natural childbirth,’ and blatant misogyny. I hope that this new study helps to reassure women that it is okay to request to be more comfortable during their labor experience with the help of epidural labor analgesia.”
The authors of the study also noted the benefits of epidural use during labor.
“It is recognized as the most effective method of providing labor analgesia,” they write. In addition, “the presence of an indwelling epidural catheter allows epidural anesthesia to be administered for an unplanned (intrapartum) cesarean delivery, thus secondarily avoiding any maternal complications or fetal exposure from general anesthesia.”
JAMA Pediatrics editor Dimitri A. Christakis, MD, MPH, wrote his second-ever Editor’s Note about this topic after the journal published two similar studies with different conclusions.
“Because there will never be experimental studies of environmental exposures, we are left with imperfect observational studies that are always at risk for residual confounding, especially when observed effect sizes are small,” Dr. Christakis writes. “Science is an imperfect and iterative process, and our responsibility as journal editors is to manage the process as best we can. Publishing two conflicting studies in such a short time frame serves as testament that we recognize the process for what it is.” His personal opinion is that any association has yet to be definitively established but that the journal will publish the study if a more definitive one is done.
In considering potentially contributing environmental risk factors to ASD, Gillian E. Hanley, PhD, of the University of British Columbia in Vancouver and two colleagues write that “meta-analyses have been unable to identify a single perinatal and neonatal factor associated with ASD risk, although some evidence suggested that exposure to a broad class of conditions such as fetal presentation, umbilical-cord complications, fetal distress, or multiple births, reflecting compromised neonatal health, may increase risk.”
Yet, they add, these studies are inconsistent in their effect size, likely because of differences in study methodology, comparison groups, sample size, diagnostic criteria, and exposure assessment.
“Thus, we continue to ask questions about whether biologically plausible associations exist or whether associations reflect residual confounding related to yet-to-be-determined maternal genetic or environmental factors,” Dr. Hanley and her colleagues write. They discuss precise differences between the California and Manitoba studies and the inevitability of selection bias since people who choose an epidural will differ in other ways from those who don’t.
“Epidural labor analgesia is an extremely effective approach to obstetric analgesia, and we have a collective responsibility to understand whether it is a safe option that sets a healthy developmental pathway well into childhood,” Dr. Hanley and her colleagues conclude. “Women have the right to make a truly informed choice about their pain relief during labor.”
The research was funded by the Canadian Institutes of Health. One author reported receiving personal fees or grants from Aetion, Alosa Foundation, Lilly, GSK, Pacira, and Takeda. No other authors had disclosures. Dr. Jones, Dr. Myers, and the editorial authors had no disclosures.
Exposure to epidural analgesia during labor did not show a link to a later diagnosis of autism spectrum disorder (ASD) in a population-based cohort study published April 19 in JAMA Pediatrics.
Though the initial analysis showed an association, adjustment for a wide range of demographic, medical, and birth factors eliminated the link. The authors note that their findings contrast with those of a cohort study in California published in the same journal last year.
“It is possible that residual confounding explains this positive association because key perinatal variables, including induction of labor, labor dystocia, and fetal distress, were not included as confounders in that study,” write Elizabeth Wall-Wieler, PhD, of the University of Manitoba in Winnipeg and her colleagues. “To limit potential bias from unmeasured confounders, we included the aforementioned variables within a wide set of potential confounders.”
The researchers analyzed linked datasets from all singleton infants born in a hospital from 2005 to 2016 in Manitoba, Canada, to compare use of epidurals during birth with diagnoses of ASD before 18 months of age. The four data sources included the Statistics Canada, Manitoba Education, Manitoba Families, and Manitoba Health, Seniors and Active Living, which includes the Manitoba Health Insurance Registry, Medical Services, Hospital Abstracts, and Drug Program Information Network. The researchers excluded women with cesarean deliveries because it was not possible to differentiate between scheduled and unscheduled cesarean deliveries.
Among 123,175 children born to mothers with an average age of 28 years, 38.2% had been exposed to epidural analgesia during their labor. Autism diagnoses occurred among 2.1% of those exposed to epidurals and 1.7% of those not exposed to epidurals. After the researchers controlled for a range of potential confounders, the difference became nonsignificant (hazard ratio, 1.08).
The adjusted analysis accounted for mother’s age; high school degree; marital status; neighborhood socioeconomic status; receipt of public assistance during pregnancy; and presence of diabetes, hypertension, anxiety, or depression in the year before the birth. Other covariates included in the adjustment included the following pregnancy factors: “parity, gestational diabetes, gestational hypertension or preeclampsia, self-reported and diagnosed drug use, smoking, alcohol use, premature rupture of membranes, antepartum hemorrhage, infection of the amniotic sac and membrane, urogenital infection, antenatal mental health hospitalization, hypothyroidism, benzodiazepine use, antidepressant use, and antiepileptic use.” The researchers also included birth year, labor induction or augmentation, labor dystocia, fetal distress or macrosomia, gestational age at birth, the infant’s sex, and hospital type.
“There were substantial differences in maternal sociodemographic, preexisting, pregnancy-related, and birth-specific covariates between births who were exposed vs. nonexposed to epidural labor analgesia,” the authors report. “For example, births exposed to epidural labor analgesia were more likely to be nulliparous, have premature rupture of membranes, antepartum hemorrhage, induction of labor, augmentation of labor, and fetal distress.”
To take family history of ASD into account, the researchers also compared siblings who were and were not exposed to an epidural during labor: 80,459 children in the cohort had at least one sibling in it as well. The researchers still found no association between use of an epidural and a subsequent autism diagnosis (HR, 0.97). The authors conducted several sensitivity analyses for first-born children, those with two or more diagnostic codes for ASD on different days, and women with missing data on high school completion or marital status who delivered at 37 weeks of gestation or later; these results consistently showed no association between epidurals and ASD.
The findings are important but unsurprising, said Scott M. Myers, MD, a neurodevelopmental pediatrician and associate professor at the Geisinger Commonwealth School of Medicine’s Autism & Developmental Medicine Institute in Scranton, Pa. Dr. Myers, who was not involved in the study, said it was strengthened by the inclusion of a wide range of covariates and multiple sensitivity analyses.
“It confirms the suspicion of many experts who were skeptical of the association reported previously, that the small increase in ASD in offspring of mothers who had epidural labor analgesia was likely attributable to other factors that differed substantially between the exposed and unexposed groups,” Dr. Myers said in an interview. “The plausibility of exposure to epidural analgesia in labor having a large effect on ASD risk and accounting for changes in ASD prevalence over time is low.”
It’s possible to hypothesize about subgroups that are genetically susceptible to certain environmental risk factors, including epidurals, but such an association should show up in epidemiological research if the subgroup is large enough.
“For example, epidural labor analgesia can prolong labor, and if it were a significant risk factor for ASD, one might expect that longer labor would have been demonstrated to be associated with increased ASD risk, but this has been examined and is not the case,” he said. He also noted that other perinatal factors previously linked to ASD, such as cesarean delivery, may result from a shared factor that affects risk of both ASD and cesarean delivery.
“Although there haven’t been enough systematic postmortem brain studies to be certain that the findings are generalizable, the most consistent neuropathological findings associated with ASD clearly arise long before birth,”Dr. Myers said. “The information I would provide to a concerned pregnant mother is that the current weight of the evidence does not suggest an association between epidural analgesia in labor and increased likelihood of ASD in offspring, much less a causal association.”
Clay Jones, MD, a hospitalist specializing in neonatal-perinatal medicine at Newton (Mass.)–Wellesley Hospital, was not involved in the research and offered a similar assessment of the findings.
“Our understanding of autism is that it is more of a genetic condition which interferes with the organization of brain architecture, so the evidence for any environmental cause would need to be robust for it to change medical practice or our recommendations to the general public,” Dr. Jones said in an interview. Compared to the previous California study, “this new research is larger and better accounts for confounding variables that might increase the risk of a child eventually being diagnosed with autism,” he said.
While recognizing the value in conducting studies to uncover any potential environmental factors contributing to autism diagnoses, Dr. Jones also addressed science communication challenges related to this research.
“While many of these studies are valid early efforts at honing in on potential risk factors, they can be overhyped and lead to increased patient anxiety and potentially harmful changes in behavior,” Dr. Jones said. “There is already a significant amount of pressure for many women to avoid certain safe and effective pain reduction strategies during labor, such as epidural labor analgesia. This pressure is often based on misunderstandings of the risks, pseudoscientific beliefs regarding the benefits of so-called ‘natural childbirth,’ and blatant misogyny. I hope that this new study helps to reassure women that it is okay to request to be more comfortable during their labor experience with the help of epidural labor analgesia.”
The authors of the study also noted the benefits of epidural use during labor.
“It is recognized as the most effective method of providing labor analgesia,” they write. In addition, “the presence of an indwelling epidural catheter allows epidural anesthesia to be administered for an unplanned (intrapartum) cesarean delivery, thus secondarily avoiding any maternal complications or fetal exposure from general anesthesia.”
JAMA Pediatrics editor Dimitri A. Christakis, MD, MPH, wrote his second-ever Editor’s Note about this topic after the journal published two similar studies with different conclusions.
“Because there will never be experimental studies of environmental exposures, we are left with imperfect observational studies that are always at risk for residual confounding, especially when observed effect sizes are small,” Dr. Christakis writes. “Science is an imperfect and iterative process, and our responsibility as journal editors is to manage the process as best we can. Publishing two conflicting studies in such a short time frame serves as testament that we recognize the process for what it is.” His personal opinion is that any association has yet to be definitively established but that the journal will publish the study if a more definitive one is done.
In considering potentially contributing environmental risk factors to ASD, Gillian E. Hanley, PhD, of the University of British Columbia in Vancouver and two colleagues write that “meta-analyses have been unable to identify a single perinatal and neonatal factor associated with ASD risk, although some evidence suggested that exposure to a broad class of conditions such as fetal presentation, umbilical-cord complications, fetal distress, or multiple births, reflecting compromised neonatal health, may increase risk.”
Yet, they add, these studies are inconsistent in their effect size, likely because of differences in study methodology, comparison groups, sample size, diagnostic criteria, and exposure assessment.
“Thus, we continue to ask questions about whether biologically plausible associations exist or whether associations reflect residual confounding related to yet-to-be-determined maternal genetic or environmental factors,” Dr. Hanley and her colleagues write. They discuss precise differences between the California and Manitoba studies and the inevitability of selection bias since people who choose an epidural will differ in other ways from those who don’t.
“Epidural labor analgesia is an extremely effective approach to obstetric analgesia, and we have a collective responsibility to understand whether it is a safe option that sets a healthy developmental pathway well into childhood,” Dr. Hanley and her colleagues conclude. “Women have the right to make a truly informed choice about their pain relief during labor.”
The research was funded by the Canadian Institutes of Health. One author reported receiving personal fees or grants from Aetion, Alosa Foundation, Lilly, GSK, Pacira, and Takeda. No other authors had disclosures. Dr. Jones, Dr. Myers, and the editorial authors had no disclosures.
FROM JAMA PEDIATRICS