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Pandemic survey: Forty-six percent of pediatric headache patients got worse
, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.
“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.
Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.
The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).
Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).
Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.
The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.
The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
Pandemic effects mixed
Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”
He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”
On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.
He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.
No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.
, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.
“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.
Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.
The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).
Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).
Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.
The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.
The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
Pandemic effects mixed
Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”
He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”
On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.
He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.
No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.
, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.
“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.
Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.
The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).
Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).
Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.
The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.
The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
Pandemic effects mixed
Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”
He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”
On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.
He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.
No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.
FROM CNS 2021
Pandemic data challenges infection link to Guillain-Barré syndrome
While pediatric cases of various types of infections fell by 45%-95% during the early months of the pandemic, cases of acute inflammatory demyelinating polyneuropathy (AIDP), an inflammatory neuropathy belonging to the clinical spectrum of Guillain-Barré syndrome, only fell by about 32%-37%, a rate that’s similar to the 35.1% decline in overall hospital admissions over that time period, researchers found. There was also no apparent link between the appearance of COVID-19 and the number of reported AIDP cases.
“There was no clear association between respiratory or gastrointestinal infections and rates of AIDP. Further, we found that AIDP did not have the expected dramatic reduction when community-acquired infections decreased during the pandemic,” Children’s Hospital of Philadelphia neurologist Craig A. Press, MD, PhD, said in an interview.
Dr. Press and colleagues presented their findings in a poster at the 50th annual meeting of the Child Neurology Society.
According to Dr. Press, the cause of AIDP in most patients is unclear, although infections and vaccinations are often linked to cases. “However, the data supporting this link is often weak. Infections with Campylobacter jejuni [bacteria that causes food poisoning] are known to be associated with AIDP, while rates of AIDP in the general population and in those with influenza are similar.”
For the new multicenter, cross-sectional study, researchers tracked AIDP data from the 47 pediatric hospitals that provide statistics to the Pediatric Health Information System. They focused on the period from January 2017 to September 2020, which included the first months of the COVID-19 pandemic in the United States.
“Social distancing, masks, and increased hand hygiene decrease community-acquired infectious rates in a dramatic way,” Dr. Press said. “If these infections were causing AIDP, we hypothesized that the cases of AIDP would drop substantially as a result.”
But this didn’t appear to happen. Researchers found that the numbers of various types of infections declined from April to September 2020: Respiratory infections dipped by 73%-78%, gastrointestinal infections fell by 45%-61%, and influenza infections dipped by 88%-95%. But AIDP cases didn’t fall as precipitously. In fact, their levels were about the same as they were in April 2017, a month when rates of gastrointestinal, respiratory disease and influenza infections were at seasonally low – but not abnormal – ebbs.
“While we must be cautious interpreting the results,” Dr. Press said, “this makes the link between infections as the main driver of pediatric AIDP less likely.”
However, he said, “this study does not exclude the possibility that rare infections cause AIDP – the data supporting that some more rare infections like campylobacter have a connection to AIDP are more robust – or that common infections very rarely lead to AIDP. While we look for triggers causing inflammatory disorders, AIDP maybe an autoinflammatory disorder without a clear trigger.”
Going forward, Dr. Press said, “we hope to look at infectious data in a more granular way to identify if specific viral or bacterial infectious may be associated with this or other inflammatory disorders. We believe that the use of data like this and the natural experiment that COVID-19 provided may help us to explore the impact of infections on disorders thought to be postinfectious.”
No study funding is reported, and the authors report no relevant disclosures.
While pediatric cases of various types of infections fell by 45%-95% during the early months of the pandemic, cases of acute inflammatory demyelinating polyneuropathy (AIDP), an inflammatory neuropathy belonging to the clinical spectrum of Guillain-Barré syndrome, only fell by about 32%-37%, a rate that’s similar to the 35.1% decline in overall hospital admissions over that time period, researchers found. There was also no apparent link between the appearance of COVID-19 and the number of reported AIDP cases.
“There was no clear association between respiratory or gastrointestinal infections and rates of AIDP. Further, we found that AIDP did not have the expected dramatic reduction when community-acquired infections decreased during the pandemic,” Children’s Hospital of Philadelphia neurologist Craig A. Press, MD, PhD, said in an interview.
Dr. Press and colleagues presented their findings in a poster at the 50th annual meeting of the Child Neurology Society.
According to Dr. Press, the cause of AIDP in most patients is unclear, although infections and vaccinations are often linked to cases. “However, the data supporting this link is often weak. Infections with Campylobacter jejuni [bacteria that causes food poisoning] are known to be associated with AIDP, while rates of AIDP in the general population and in those with influenza are similar.”
For the new multicenter, cross-sectional study, researchers tracked AIDP data from the 47 pediatric hospitals that provide statistics to the Pediatric Health Information System. They focused on the period from January 2017 to September 2020, which included the first months of the COVID-19 pandemic in the United States.
“Social distancing, masks, and increased hand hygiene decrease community-acquired infectious rates in a dramatic way,” Dr. Press said. “If these infections were causing AIDP, we hypothesized that the cases of AIDP would drop substantially as a result.”
But this didn’t appear to happen. Researchers found that the numbers of various types of infections declined from April to September 2020: Respiratory infections dipped by 73%-78%, gastrointestinal infections fell by 45%-61%, and influenza infections dipped by 88%-95%. But AIDP cases didn’t fall as precipitously. In fact, their levels were about the same as they were in April 2017, a month when rates of gastrointestinal, respiratory disease and influenza infections were at seasonally low – but not abnormal – ebbs.
“While we must be cautious interpreting the results,” Dr. Press said, “this makes the link between infections as the main driver of pediatric AIDP less likely.”
However, he said, “this study does not exclude the possibility that rare infections cause AIDP – the data supporting that some more rare infections like campylobacter have a connection to AIDP are more robust – or that common infections very rarely lead to AIDP. While we look for triggers causing inflammatory disorders, AIDP maybe an autoinflammatory disorder without a clear trigger.”
Going forward, Dr. Press said, “we hope to look at infectious data in a more granular way to identify if specific viral or bacterial infectious may be associated with this or other inflammatory disorders. We believe that the use of data like this and the natural experiment that COVID-19 provided may help us to explore the impact of infections on disorders thought to be postinfectious.”
No study funding is reported, and the authors report no relevant disclosures.
While pediatric cases of various types of infections fell by 45%-95% during the early months of the pandemic, cases of acute inflammatory demyelinating polyneuropathy (AIDP), an inflammatory neuropathy belonging to the clinical spectrum of Guillain-Barré syndrome, only fell by about 32%-37%, a rate that’s similar to the 35.1% decline in overall hospital admissions over that time period, researchers found. There was also no apparent link between the appearance of COVID-19 and the number of reported AIDP cases.
“There was no clear association between respiratory or gastrointestinal infections and rates of AIDP. Further, we found that AIDP did not have the expected dramatic reduction when community-acquired infections decreased during the pandemic,” Children’s Hospital of Philadelphia neurologist Craig A. Press, MD, PhD, said in an interview.
Dr. Press and colleagues presented their findings in a poster at the 50th annual meeting of the Child Neurology Society.
According to Dr. Press, the cause of AIDP in most patients is unclear, although infections and vaccinations are often linked to cases. “However, the data supporting this link is often weak. Infections with Campylobacter jejuni [bacteria that causes food poisoning] are known to be associated with AIDP, while rates of AIDP in the general population and in those with influenza are similar.”
For the new multicenter, cross-sectional study, researchers tracked AIDP data from the 47 pediatric hospitals that provide statistics to the Pediatric Health Information System. They focused on the period from January 2017 to September 2020, which included the first months of the COVID-19 pandemic in the United States.
“Social distancing, masks, and increased hand hygiene decrease community-acquired infectious rates in a dramatic way,” Dr. Press said. “If these infections were causing AIDP, we hypothesized that the cases of AIDP would drop substantially as a result.”
But this didn’t appear to happen. Researchers found that the numbers of various types of infections declined from April to September 2020: Respiratory infections dipped by 73%-78%, gastrointestinal infections fell by 45%-61%, and influenza infections dipped by 88%-95%. But AIDP cases didn’t fall as precipitously. In fact, their levels were about the same as they were in April 2017, a month when rates of gastrointestinal, respiratory disease and influenza infections were at seasonally low – but not abnormal – ebbs.
“While we must be cautious interpreting the results,” Dr. Press said, “this makes the link between infections as the main driver of pediatric AIDP less likely.”
However, he said, “this study does not exclude the possibility that rare infections cause AIDP – the data supporting that some more rare infections like campylobacter have a connection to AIDP are more robust – or that common infections very rarely lead to AIDP. While we look for triggers causing inflammatory disorders, AIDP maybe an autoinflammatory disorder without a clear trigger.”
Going forward, Dr. Press said, “we hope to look at infectious data in a more granular way to identify if specific viral or bacterial infectious may be associated with this or other inflammatory disorders. We believe that the use of data like this and the natural experiment that COVID-19 provided may help us to explore the impact of infections on disorders thought to be postinfectious.”
No study funding is reported, and the authors report no relevant disclosures.
FROM CNS 2021
Epidiolex plus THC lowers seizures in pediatric epilepsy
the component of cannabis that makes people high in larger quantities, researchers reported.
“THC can contribute to seizure control and mitigation some of the side effects of CBD,” said study coauthor and Austin, Tex., child neurologist Karen Keough, MD, in an interview. Dr. Keough and colleagues presented their findings at the 50th annual meeting of the Child Neurology Society.
In a landmark move, the Food and Drug Administration approved Epidiolex in 2018 for the treatment of seizures in two rare forms of epilepsy, Lennox-Gastaut syndrome and Dravet syndrome. The agency had never before approved a drug with a purified ingredient derived from marijuana.
CBD, the active ingredient in Epidiolex, is nonpsychoactive. The use in medicine of THC, the main driver of marijuana’s ability to make people stoned, is much more controversial.
Dr. Keough said she had treated 60-70 children with CBD, at the same strength as in Epidiolex (100 mg), and 5 mg of THC before the drug was approved. “I was seeing some very impressive results, and some became seizure free who’d always been refractory,” she said.
When the Epidiolex became available, she said, some patients transitioned to it and stopped taking THC. According to her, some patients fared well. But others immediately experienced worse seizures, she said, and some developed side effects to Epidiolex in the absence of THC, such as agitation and appetite suppression.
Combination therapy
For the new study, a retrospective, unblinded cohort analysis, Dr. Keough and colleagues tracked patients who received various doses of CBD, in some cases as Epidiolex, and various doses of THC prescribed by the Texas Original Compassionate Cultivation dispensary, where she serves as chief medical officer.
The initial number of patients was 212; 135 consented to review and 10 were excluded for various reasons leaving a total of 74 subjects in the study. The subjects, whose median age at the start of the study was 12 years (range, 2-25 years), were tracked from 2018 to2021. Just over half (55%) were male, and they remained on the regimen for a median of 805 days (range, 400-1,141).
Of the 74 subjects, 45.9% had a reduction of seizures of more than 75%, and 20.3% had a reduction of 50%-75%. Only 4.1% saw their seizures worsen.
The THC doses varied from none to more than 12 mg/day; CBD doses varied from none to more than 26 mg/kg per day. O the 74 patients, 18 saw their greatest seizure reduction from baseline when they received no THC; 12 saw their greatest seizure reduction from baseline when they received 0-2 mg/kg per day of CBD.
Still controversial
Did the patients get high? In some cases they did, Dr. Keough said. However, “a lot of these patients are either too young or too cognitively limited to describe whether they’re feeling intoxicated. That’s one of the many reasons why this is so controversial. You have to go into this with eyes wide open. We’re working in an environment with limited information as to what an intoxicating dose is for a small kid.”
However, she said, it seems clear that “THC can enhance the effect of CBD in children with epilepsy” and reduce CBD side effects. It’s not surprising that the substances work differently since they interact with brain cells in different ways, she said.
For neurologists, she said, “the challenge is to find a reliable source of THC that you can count on and verify so you aren’t overdosing the patients.”
University of Saskatchewan, Saskatoon, child neurologist and cannabinoid researcher Richard Huntsman, MD, who’s familiar with the study findings, said in an interview that they “provide another strong signal that the addition of THC provides benefit, at least in some patients.”
But it’s still unclear “why some children respond best in regards to seizure reduction and side effect profile with combination CBD:THC therapy, and others seemed to do better with CBD alone,” he said. Also unknown: “the ideal THC:CBD ratio that allows optimal seizure control while preventing the potential harmful effects of THC.”
As for the future, he said, “as we are just scratching the surface of our knowledge about the use of cannabis-based therapies in children with neurological disorders, I suspect that the use of these therapies will expand over time.”
No study funding is reported. Dr. Keough disclosed serving as chief medical officer of Texas Original Compassionate Cultivation. Dr. Huntsman disclosed serving as lead investigator of the Cannabidiol in Children with Refractory Epileptic Encephalopathy study and serving on the boards of the Cannabinoid Research Initiative of Saskatchewan (University of Saskatchewan) and Canadian Childhood Cannabinoid Clinical Trials Consortium. He is also cochair of Health Canada’s Scientific Advisory Committee on Cannabinoids for Health Purposes.
the component of cannabis that makes people high in larger quantities, researchers reported.
“THC can contribute to seizure control and mitigation some of the side effects of CBD,” said study coauthor and Austin, Tex., child neurologist Karen Keough, MD, in an interview. Dr. Keough and colleagues presented their findings at the 50th annual meeting of the Child Neurology Society.
In a landmark move, the Food and Drug Administration approved Epidiolex in 2018 for the treatment of seizures in two rare forms of epilepsy, Lennox-Gastaut syndrome and Dravet syndrome. The agency had never before approved a drug with a purified ingredient derived from marijuana.
CBD, the active ingredient in Epidiolex, is nonpsychoactive. The use in medicine of THC, the main driver of marijuana’s ability to make people stoned, is much more controversial.
Dr. Keough said she had treated 60-70 children with CBD, at the same strength as in Epidiolex (100 mg), and 5 mg of THC before the drug was approved. “I was seeing some very impressive results, and some became seizure free who’d always been refractory,” she said.
When the Epidiolex became available, she said, some patients transitioned to it and stopped taking THC. According to her, some patients fared well. But others immediately experienced worse seizures, she said, and some developed side effects to Epidiolex in the absence of THC, such as agitation and appetite suppression.
Combination therapy
For the new study, a retrospective, unblinded cohort analysis, Dr. Keough and colleagues tracked patients who received various doses of CBD, in some cases as Epidiolex, and various doses of THC prescribed by the Texas Original Compassionate Cultivation dispensary, where she serves as chief medical officer.
The initial number of patients was 212; 135 consented to review and 10 were excluded for various reasons leaving a total of 74 subjects in the study. The subjects, whose median age at the start of the study was 12 years (range, 2-25 years), were tracked from 2018 to2021. Just over half (55%) were male, and they remained on the regimen for a median of 805 days (range, 400-1,141).
Of the 74 subjects, 45.9% had a reduction of seizures of more than 75%, and 20.3% had a reduction of 50%-75%. Only 4.1% saw their seizures worsen.
The THC doses varied from none to more than 12 mg/day; CBD doses varied from none to more than 26 mg/kg per day. O the 74 patients, 18 saw their greatest seizure reduction from baseline when they received no THC; 12 saw their greatest seizure reduction from baseline when they received 0-2 mg/kg per day of CBD.
Still controversial
Did the patients get high? In some cases they did, Dr. Keough said. However, “a lot of these patients are either too young or too cognitively limited to describe whether they’re feeling intoxicated. That’s one of the many reasons why this is so controversial. You have to go into this with eyes wide open. We’re working in an environment with limited information as to what an intoxicating dose is for a small kid.”
However, she said, it seems clear that “THC can enhance the effect of CBD in children with epilepsy” and reduce CBD side effects. It’s not surprising that the substances work differently since they interact with brain cells in different ways, she said.
For neurologists, she said, “the challenge is to find a reliable source of THC that you can count on and verify so you aren’t overdosing the patients.”
University of Saskatchewan, Saskatoon, child neurologist and cannabinoid researcher Richard Huntsman, MD, who’s familiar with the study findings, said in an interview that they “provide another strong signal that the addition of THC provides benefit, at least in some patients.”
But it’s still unclear “why some children respond best in regards to seizure reduction and side effect profile with combination CBD:THC therapy, and others seemed to do better with CBD alone,” he said. Also unknown: “the ideal THC:CBD ratio that allows optimal seizure control while preventing the potential harmful effects of THC.”
As for the future, he said, “as we are just scratching the surface of our knowledge about the use of cannabis-based therapies in children with neurological disorders, I suspect that the use of these therapies will expand over time.”
No study funding is reported. Dr. Keough disclosed serving as chief medical officer of Texas Original Compassionate Cultivation. Dr. Huntsman disclosed serving as lead investigator of the Cannabidiol in Children with Refractory Epileptic Encephalopathy study and serving on the boards of the Cannabinoid Research Initiative of Saskatchewan (University of Saskatchewan) and Canadian Childhood Cannabinoid Clinical Trials Consortium. He is also cochair of Health Canada’s Scientific Advisory Committee on Cannabinoids for Health Purposes.
the component of cannabis that makes people high in larger quantities, researchers reported.
“THC can contribute to seizure control and mitigation some of the side effects of CBD,” said study coauthor and Austin, Tex., child neurologist Karen Keough, MD, in an interview. Dr. Keough and colleagues presented their findings at the 50th annual meeting of the Child Neurology Society.
In a landmark move, the Food and Drug Administration approved Epidiolex in 2018 for the treatment of seizures in two rare forms of epilepsy, Lennox-Gastaut syndrome and Dravet syndrome. The agency had never before approved a drug with a purified ingredient derived from marijuana.
CBD, the active ingredient in Epidiolex, is nonpsychoactive. The use in medicine of THC, the main driver of marijuana’s ability to make people stoned, is much more controversial.
Dr. Keough said she had treated 60-70 children with CBD, at the same strength as in Epidiolex (100 mg), and 5 mg of THC before the drug was approved. “I was seeing some very impressive results, and some became seizure free who’d always been refractory,” she said.
When the Epidiolex became available, she said, some patients transitioned to it and stopped taking THC. According to her, some patients fared well. But others immediately experienced worse seizures, she said, and some developed side effects to Epidiolex in the absence of THC, such as agitation and appetite suppression.
Combination therapy
For the new study, a retrospective, unblinded cohort analysis, Dr. Keough and colleagues tracked patients who received various doses of CBD, in some cases as Epidiolex, and various doses of THC prescribed by the Texas Original Compassionate Cultivation dispensary, where she serves as chief medical officer.
The initial number of patients was 212; 135 consented to review and 10 were excluded for various reasons leaving a total of 74 subjects in the study. The subjects, whose median age at the start of the study was 12 years (range, 2-25 years), were tracked from 2018 to2021. Just over half (55%) were male, and they remained on the regimen for a median of 805 days (range, 400-1,141).
Of the 74 subjects, 45.9% had a reduction of seizures of more than 75%, and 20.3% had a reduction of 50%-75%. Only 4.1% saw their seizures worsen.
The THC doses varied from none to more than 12 mg/day; CBD doses varied from none to more than 26 mg/kg per day. O the 74 patients, 18 saw their greatest seizure reduction from baseline when they received no THC; 12 saw their greatest seizure reduction from baseline when they received 0-2 mg/kg per day of CBD.
Still controversial
Did the patients get high? In some cases they did, Dr. Keough said. However, “a lot of these patients are either too young or too cognitively limited to describe whether they’re feeling intoxicated. That’s one of the many reasons why this is so controversial. You have to go into this with eyes wide open. We’re working in an environment with limited information as to what an intoxicating dose is for a small kid.”
However, she said, it seems clear that “THC can enhance the effect of CBD in children with epilepsy” and reduce CBD side effects. It’s not surprising that the substances work differently since they interact with brain cells in different ways, she said.
For neurologists, she said, “the challenge is to find a reliable source of THC that you can count on and verify so you aren’t overdosing the patients.”
University of Saskatchewan, Saskatoon, child neurologist and cannabinoid researcher Richard Huntsman, MD, who’s familiar with the study findings, said in an interview that they “provide another strong signal that the addition of THC provides benefit, at least in some patients.”
But it’s still unclear “why some children respond best in regards to seizure reduction and side effect profile with combination CBD:THC therapy, and others seemed to do better with CBD alone,” he said. Also unknown: “the ideal THC:CBD ratio that allows optimal seizure control while preventing the potential harmful effects of THC.”
As for the future, he said, “as we are just scratching the surface of our knowledge about the use of cannabis-based therapies in children with neurological disorders, I suspect that the use of these therapies will expand over time.”
No study funding is reported. Dr. Keough disclosed serving as chief medical officer of Texas Original Compassionate Cultivation. Dr. Huntsman disclosed serving as lead investigator of the Cannabidiol in Children with Refractory Epileptic Encephalopathy study and serving on the boards of the Cannabinoid Research Initiative of Saskatchewan (University of Saskatchewan) and Canadian Childhood Cannabinoid Clinical Trials Consortium. He is also cochair of Health Canada’s Scientific Advisory Committee on Cannabinoids for Health Purposes.
FROM CNS 2021
Case reports underscore risk of cerebral edema, AFCE in children with COVID-19
according to pediatric neurologists who are urging colleagues to watch out for similar cases.
At least one other child in the United States has died after becoming infected with the virus and developing cerebral edema. “The rapid and devastating clinical course in both of these cases highlights the need for early recognition of a cerebral edema and AFCE as potential complications of COVID-19 in pediatric patients,” the neurologists wrote.
The case was highlighted in a poster presented at the annual meeting of the Child Neurology Society and in a report published earlier this year in Child Neurology Open.
According to pediatric neurologist Timothy Gershon, MD, PhD , of the University of North Carolina at Chapel Hill, the child appeared in clinic in July 2020. She had been healthy but was suffering from 1 day of fever, seizure-like activity (generalized convulsions and drooling), anorexia, and lethargy.
The girl, who was subsequently diagnosed with COVID-19, deteriorated in the hospital. “She received IV dexamethasone in attempts to reduce cerebral edema,” the neurologists wrote. “Regarding immunomodulatory therapy, she received intravenous immunoglobulin (2 g/kg), anakinra, and hydrocortisone; despite approval for remdesivir and COVID-19 convalescent plasma, these were ultimately withheld due to poor prognosis.”
Brain death examinations at 24 and 48 hours after cardiac arrest were consistent with brain death, they reported.
Neurologists believe the patient suffered from AFCE, “an often fatal pediatric clinical entity consisting of fever, encephalopathy, and new-onset seizures followed by rapid, diffuse, and medically-refractory cerebral edema.” They add that “AFCE occurs as a rare complication of a variety of common pediatric infections, and a CNS [central nervous system] pathogen is identified in only a minority of cases, suggesting a para-infectious mechanism of edema.”
Neurologists offered a case definition of the “recently recognized” AFCE earlier this year.
“This was an extremely rare rapid progression to cerebral edema. I think it was related to the patient’s COVID infection, but why this patient got it and others don’t is unknown,” Dr. Gershon said in an interview. “The full spectrum of neurological complications of COVID were not yet known [at the time]. We didn’t know, and still don’t know, what the causative links are between COVID and suddenly having seizures and brain swelling.”
He said he’d treat a similar patient differently now and give dexamethasone earlier in the clinical course, although “there is no data to tell us if any therapy could have reversed it.” Specifically, he said, “I’d give dexamethasone at the first sign of brain involvement, using the dosing recommended for cerebral edema, and try to get the MRI earlier in the course.”
Dr. Gershon and colleagues noted another case of fatal cerebral edema in a child, a 7-year-old boy who was treated in New York state. That case “shows that fatal cerebral edema may complicate pediatric multisystem inflammatory syndrome,” they wrote.
Pediatric critical care specialist Preetha Krishnan, MD, of Randall Children’s Hospital at Legacy Emanuel in Portland, Ore., helped develop the new definition of AFCE. In an interview, she said AFCE is difficult to diagnose because the signs/symptoms – such as fever, altered sensorium, and seizures – are found in other conditions such as febrile status epilepticus with a viral illness.
“The key to recognition of AFCE is that unlike other disease processes, these children have rapid neurologic progression,” she said. “In addition, many of our AFCE patients also had vomiting and/or headache, which in retrospect was likely an indication of elevated ICP [intracranial pressure] rather than viral infection.”
She added that “if a child with fever, seizures, and encephalopathy has cerebral edema on imaging and/or has neurologic progression, AFCE should be considered. Most of our cases of AFCE had fulminant progression within the first 3 days of their head imaging noting cerebral edema. There are other neurologic diseases, such as acute necrotizing encephalopathy of childhood, that also have progressive signs/symptoms, but head imaging and lab work should help differentiate many of these etiologies.”
In regard to treatment, she said, “our unit would likely err on the side of providing as much neuroprotective measures as is reasonable, such as maintaining normothermia, consideration of hyperosmolar therapy, maintaining normocarbia and normoxemia, managing seizures, etc. I would recommend getting the entire neurocritical care team involved in the management discussion. This varies by center, but will likely include neurology, ID [infectious disease], possibly neurosurgery, and PICU.”
As for the new case report, Krishnan said COVID-19 has been linked to neurologic complications, “so it does not surprise me that AFCE is part of the neurologic spectrum of disease.”
No funding was reported, and the authors report no relevant disclosures. Dr. Krishnan has no disclosures.
according to pediatric neurologists who are urging colleagues to watch out for similar cases.
At least one other child in the United States has died after becoming infected with the virus and developing cerebral edema. “The rapid and devastating clinical course in both of these cases highlights the need for early recognition of a cerebral edema and AFCE as potential complications of COVID-19 in pediatric patients,” the neurologists wrote.
The case was highlighted in a poster presented at the annual meeting of the Child Neurology Society and in a report published earlier this year in Child Neurology Open.
According to pediatric neurologist Timothy Gershon, MD, PhD , of the University of North Carolina at Chapel Hill, the child appeared in clinic in July 2020. She had been healthy but was suffering from 1 day of fever, seizure-like activity (generalized convulsions and drooling), anorexia, and lethargy.
The girl, who was subsequently diagnosed with COVID-19, deteriorated in the hospital. “She received IV dexamethasone in attempts to reduce cerebral edema,” the neurologists wrote. “Regarding immunomodulatory therapy, she received intravenous immunoglobulin (2 g/kg), anakinra, and hydrocortisone; despite approval for remdesivir and COVID-19 convalescent plasma, these were ultimately withheld due to poor prognosis.”
Brain death examinations at 24 and 48 hours after cardiac arrest were consistent with brain death, they reported.
Neurologists believe the patient suffered from AFCE, “an often fatal pediatric clinical entity consisting of fever, encephalopathy, and new-onset seizures followed by rapid, diffuse, and medically-refractory cerebral edema.” They add that “AFCE occurs as a rare complication of a variety of common pediatric infections, and a CNS [central nervous system] pathogen is identified in only a minority of cases, suggesting a para-infectious mechanism of edema.”
Neurologists offered a case definition of the “recently recognized” AFCE earlier this year.
“This was an extremely rare rapid progression to cerebral edema. I think it was related to the patient’s COVID infection, but why this patient got it and others don’t is unknown,” Dr. Gershon said in an interview. “The full spectrum of neurological complications of COVID were not yet known [at the time]. We didn’t know, and still don’t know, what the causative links are between COVID and suddenly having seizures and brain swelling.”
He said he’d treat a similar patient differently now and give dexamethasone earlier in the clinical course, although “there is no data to tell us if any therapy could have reversed it.” Specifically, he said, “I’d give dexamethasone at the first sign of brain involvement, using the dosing recommended for cerebral edema, and try to get the MRI earlier in the course.”
Dr. Gershon and colleagues noted another case of fatal cerebral edema in a child, a 7-year-old boy who was treated in New York state. That case “shows that fatal cerebral edema may complicate pediatric multisystem inflammatory syndrome,” they wrote.
Pediatric critical care specialist Preetha Krishnan, MD, of Randall Children’s Hospital at Legacy Emanuel in Portland, Ore., helped develop the new definition of AFCE. In an interview, she said AFCE is difficult to diagnose because the signs/symptoms – such as fever, altered sensorium, and seizures – are found in other conditions such as febrile status epilepticus with a viral illness.
“The key to recognition of AFCE is that unlike other disease processes, these children have rapid neurologic progression,” she said. “In addition, many of our AFCE patients also had vomiting and/or headache, which in retrospect was likely an indication of elevated ICP [intracranial pressure] rather than viral infection.”
She added that “if a child with fever, seizures, and encephalopathy has cerebral edema on imaging and/or has neurologic progression, AFCE should be considered. Most of our cases of AFCE had fulminant progression within the first 3 days of their head imaging noting cerebral edema. There are other neurologic diseases, such as acute necrotizing encephalopathy of childhood, that also have progressive signs/symptoms, but head imaging and lab work should help differentiate many of these etiologies.”
In regard to treatment, she said, “our unit would likely err on the side of providing as much neuroprotective measures as is reasonable, such as maintaining normothermia, consideration of hyperosmolar therapy, maintaining normocarbia and normoxemia, managing seizures, etc. I would recommend getting the entire neurocritical care team involved in the management discussion. This varies by center, but will likely include neurology, ID [infectious disease], possibly neurosurgery, and PICU.”
As for the new case report, Krishnan said COVID-19 has been linked to neurologic complications, “so it does not surprise me that AFCE is part of the neurologic spectrum of disease.”
No funding was reported, and the authors report no relevant disclosures. Dr. Krishnan has no disclosures.
according to pediatric neurologists who are urging colleagues to watch out for similar cases.
At least one other child in the United States has died after becoming infected with the virus and developing cerebral edema. “The rapid and devastating clinical course in both of these cases highlights the need for early recognition of a cerebral edema and AFCE as potential complications of COVID-19 in pediatric patients,” the neurologists wrote.
The case was highlighted in a poster presented at the annual meeting of the Child Neurology Society and in a report published earlier this year in Child Neurology Open.
According to pediatric neurologist Timothy Gershon, MD, PhD , of the University of North Carolina at Chapel Hill, the child appeared in clinic in July 2020. She had been healthy but was suffering from 1 day of fever, seizure-like activity (generalized convulsions and drooling), anorexia, and lethargy.
The girl, who was subsequently diagnosed with COVID-19, deteriorated in the hospital. “She received IV dexamethasone in attempts to reduce cerebral edema,” the neurologists wrote. “Regarding immunomodulatory therapy, she received intravenous immunoglobulin (2 g/kg), anakinra, and hydrocortisone; despite approval for remdesivir and COVID-19 convalescent plasma, these were ultimately withheld due to poor prognosis.”
Brain death examinations at 24 and 48 hours after cardiac arrest were consistent with brain death, they reported.
Neurologists believe the patient suffered from AFCE, “an often fatal pediatric clinical entity consisting of fever, encephalopathy, and new-onset seizures followed by rapid, diffuse, and medically-refractory cerebral edema.” They add that “AFCE occurs as a rare complication of a variety of common pediatric infections, and a CNS [central nervous system] pathogen is identified in only a minority of cases, suggesting a para-infectious mechanism of edema.”
Neurologists offered a case definition of the “recently recognized” AFCE earlier this year.
“This was an extremely rare rapid progression to cerebral edema. I think it was related to the patient’s COVID infection, but why this patient got it and others don’t is unknown,” Dr. Gershon said in an interview. “The full spectrum of neurological complications of COVID were not yet known [at the time]. We didn’t know, and still don’t know, what the causative links are between COVID and suddenly having seizures and brain swelling.”
He said he’d treat a similar patient differently now and give dexamethasone earlier in the clinical course, although “there is no data to tell us if any therapy could have reversed it.” Specifically, he said, “I’d give dexamethasone at the first sign of brain involvement, using the dosing recommended for cerebral edema, and try to get the MRI earlier in the course.”
Dr. Gershon and colleagues noted another case of fatal cerebral edema in a child, a 7-year-old boy who was treated in New York state. That case “shows that fatal cerebral edema may complicate pediatric multisystem inflammatory syndrome,” they wrote.
Pediatric critical care specialist Preetha Krishnan, MD, of Randall Children’s Hospital at Legacy Emanuel in Portland, Ore., helped develop the new definition of AFCE. In an interview, she said AFCE is difficult to diagnose because the signs/symptoms – such as fever, altered sensorium, and seizures – are found in other conditions such as febrile status epilepticus with a viral illness.
“The key to recognition of AFCE is that unlike other disease processes, these children have rapid neurologic progression,” she said. “In addition, many of our AFCE patients also had vomiting and/or headache, which in retrospect was likely an indication of elevated ICP [intracranial pressure] rather than viral infection.”
She added that “if a child with fever, seizures, and encephalopathy has cerebral edema on imaging and/or has neurologic progression, AFCE should be considered. Most of our cases of AFCE had fulminant progression within the first 3 days of their head imaging noting cerebral edema. There are other neurologic diseases, such as acute necrotizing encephalopathy of childhood, that also have progressive signs/symptoms, but head imaging and lab work should help differentiate many of these etiologies.”
In regard to treatment, she said, “our unit would likely err on the side of providing as much neuroprotective measures as is reasonable, such as maintaining normothermia, consideration of hyperosmolar therapy, maintaining normocarbia and normoxemia, managing seizures, etc. I would recommend getting the entire neurocritical care team involved in the management discussion. This varies by center, but will likely include neurology, ID [infectious disease], possibly neurosurgery, and PICU.”
As for the new case report, Krishnan said COVID-19 has been linked to neurologic complications, “so it does not surprise me that AFCE is part of the neurologic spectrum of disease.”
No funding was reported, and the authors report no relevant disclosures. Dr. Krishnan has no disclosures.
FROM CNS 2021
Maternal SSRI use linked to more encephalopathy in newborns, risk still small
, although the overall risk remains extremely low, a new study finds.
The findings were presented in a poster at the 50th annual meeting of the Child Neurology Society.
“Our work showed that neonates exposed to SSRI in utero had higher risks of neonatal encephalopathy even when adjusting for confounders such as maternal mental health disorders and age. SSRIs could cause side effects such as encephalopathy in neonates, and these risks need to be balanced carefully with the potential benefits of treatment to the mother,” study lead author Marie Cornet, MD, a neonatology fellow with Benioff Children’s Hospital at the University of California, San Francisco, said in an interview.
According to Dr. Cornet, “we know that SSRI exposure in utero is associated with increased risks of respiratory distress at birth, need for positive-pressure ventilation, and an abnormal neurologic exam.” The researchers launched the new study to determine if the estimated 4%-8% of pregnant women who take SSRIs may be putting their newborns at greater risk of NE.
The researchers retrospectively tracked 305,426 infants who were born in the Kaiser Permanente Northern California health system (≥35 weeks) from 2011 to 2019. The mothers had an average age of 31 years, and approximately 34.7% were White, 34.7% of unknown race, 23.3% Asian, and 6.2% Black.
The researchers defined NE as a “5-minute APGAR score <7 and abnormal level of consciousness, activity, tone, or reflexes.”
A total of 8,024 infants (2.6%) had mothers who used SSRIs in the third trimester, and 510 (0.17%) were determined to have had NE.
After adjustment for maternal depression or anxiety, maternal age, race, and hospital, exposed neonates had 2.7 times higher odds of NE (odds ratio, 2.7).
Each 25 mg per day increase in the dose of SSRIs, as equalized to doses of sertraline (Zoloft), was linked to a significant 31% increase in the odds of developing NE (OR, 1.31).
The study doesn’t examine the benefits of SSRI treatment in pregnancy. Those taking SSRIs were much more likely to have depression during pregnancy (76.5% vs. 13.5%) and anxiety (56.7% vs. 6.9%), compared with those who did not take the drug.
The possible connection between SSRIs and NE is unclear. “SSRIs may contribute to NE by a withdrawal mechanism or by a toxicity mechanism. It is also possible that SSRIs themselves are not responsible for encephalopathy, or that the severity of maternal mental health is itself responsible for increased neonatal encephalopathy,” Dr. Cornet said. “However, we believe we adjusted our results thoroughly for that. Furthermore, in this cohort, neonates born from mothers with untreated depression were not at higher risk of encephalopathy than neonates born to mothers without depression.”
She added: “When infants have acidosis or require prolonged resuscitation after birth, they get treated with therapeutic hypothermia. This invasive treatment was shown to decrease mortality and morbidity in neonates with hypoxic-ischemic encephalopathy. However, therapeutic hypothermia may not be helpful in infants with encephalopathy due to other causes than acute hypoxia-ischemia, such as infection, inflammation, genetic conditions, or exposure to toxins. In the case of SSRIs, our results show that, while neonates often have encephalopathy, this encephalopathy is often mild and self-resolved. We did not see a statistically significant increase in acidosis or treatment with therapeutic hypothermia.”
In the future neurologists should consider SSRI use as a potential cause in cases of NE, Dr. Cornet said. “If there are no signs of hypoxic-ischemic encephalopathy – no evidence of acidosis, acute perinatal event – treatment with therapeutic hypothermia may not be indicated.”
Dr. Cornet said more research is in the works. “Studying the long-term side effect of SSRIs on neonatal brain development and injury is essential,” she said. “We plan to compare brain injury in neonates exposed and unexposed to SSRIs and examine long-term outcomes to assess if the effect of SSRI exposure is transient or has a lasting impact.”
This study was funded by the Thrasher Early Career Research Grant and by the Newborn Brain Research Innovation Award at UCSF. The authors have no relevant disclosures.
, although the overall risk remains extremely low, a new study finds.
The findings were presented in a poster at the 50th annual meeting of the Child Neurology Society.
“Our work showed that neonates exposed to SSRI in utero had higher risks of neonatal encephalopathy even when adjusting for confounders such as maternal mental health disorders and age. SSRIs could cause side effects such as encephalopathy in neonates, and these risks need to be balanced carefully with the potential benefits of treatment to the mother,” study lead author Marie Cornet, MD, a neonatology fellow with Benioff Children’s Hospital at the University of California, San Francisco, said in an interview.
According to Dr. Cornet, “we know that SSRI exposure in utero is associated with increased risks of respiratory distress at birth, need for positive-pressure ventilation, and an abnormal neurologic exam.” The researchers launched the new study to determine if the estimated 4%-8% of pregnant women who take SSRIs may be putting their newborns at greater risk of NE.
The researchers retrospectively tracked 305,426 infants who were born in the Kaiser Permanente Northern California health system (≥35 weeks) from 2011 to 2019. The mothers had an average age of 31 years, and approximately 34.7% were White, 34.7% of unknown race, 23.3% Asian, and 6.2% Black.
The researchers defined NE as a “5-minute APGAR score <7 and abnormal level of consciousness, activity, tone, or reflexes.”
A total of 8,024 infants (2.6%) had mothers who used SSRIs in the third trimester, and 510 (0.17%) were determined to have had NE.
After adjustment for maternal depression or anxiety, maternal age, race, and hospital, exposed neonates had 2.7 times higher odds of NE (odds ratio, 2.7).
Each 25 mg per day increase in the dose of SSRIs, as equalized to doses of sertraline (Zoloft), was linked to a significant 31% increase in the odds of developing NE (OR, 1.31).
The study doesn’t examine the benefits of SSRI treatment in pregnancy. Those taking SSRIs were much more likely to have depression during pregnancy (76.5% vs. 13.5%) and anxiety (56.7% vs. 6.9%), compared with those who did not take the drug.
The possible connection between SSRIs and NE is unclear. “SSRIs may contribute to NE by a withdrawal mechanism or by a toxicity mechanism. It is also possible that SSRIs themselves are not responsible for encephalopathy, or that the severity of maternal mental health is itself responsible for increased neonatal encephalopathy,” Dr. Cornet said. “However, we believe we adjusted our results thoroughly for that. Furthermore, in this cohort, neonates born from mothers with untreated depression were not at higher risk of encephalopathy than neonates born to mothers without depression.”
She added: “When infants have acidosis or require prolonged resuscitation after birth, they get treated with therapeutic hypothermia. This invasive treatment was shown to decrease mortality and morbidity in neonates with hypoxic-ischemic encephalopathy. However, therapeutic hypothermia may not be helpful in infants with encephalopathy due to other causes than acute hypoxia-ischemia, such as infection, inflammation, genetic conditions, or exposure to toxins. In the case of SSRIs, our results show that, while neonates often have encephalopathy, this encephalopathy is often mild and self-resolved. We did not see a statistically significant increase in acidosis or treatment with therapeutic hypothermia.”
In the future neurologists should consider SSRI use as a potential cause in cases of NE, Dr. Cornet said. “If there are no signs of hypoxic-ischemic encephalopathy – no evidence of acidosis, acute perinatal event – treatment with therapeutic hypothermia may not be indicated.”
Dr. Cornet said more research is in the works. “Studying the long-term side effect of SSRIs on neonatal brain development and injury is essential,” she said. “We plan to compare brain injury in neonates exposed and unexposed to SSRIs and examine long-term outcomes to assess if the effect of SSRI exposure is transient or has a lasting impact.”
This study was funded by the Thrasher Early Career Research Grant and by the Newborn Brain Research Innovation Award at UCSF. The authors have no relevant disclosures.
, although the overall risk remains extremely low, a new study finds.
The findings were presented in a poster at the 50th annual meeting of the Child Neurology Society.
“Our work showed that neonates exposed to SSRI in utero had higher risks of neonatal encephalopathy even when adjusting for confounders such as maternal mental health disorders and age. SSRIs could cause side effects such as encephalopathy in neonates, and these risks need to be balanced carefully with the potential benefits of treatment to the mother,” study lead author Marie Cornet, MD, a neonatology fellow with Benioff Children’s Hospital at the University of California, San Francisco, said in an interview.
According to Dr. Cornet, “we know that SSRI exposure in utero is associated with increased risks of respiratory distress at birth, need for positive-pressure ventilation, and an abnormal neurologic exam.” The researchers launched the new study to determine if the estimated 4%-8% of pregnant women who take SSRIs may be putting their newborns at greater risk of NE.
The researchers retrospectively tracked 305,426 infants who were born in the Kaiser Permanente Northern California health system (≥35 weeks) from 2011 to 2019. The mothers had an average age of 31 years, and approximately 34.7% were White, 34.7% of unknown race, 23.3% Asian, and 6.2% Black.
The researchers defined NE as a “5-minute APGAR score <7 and abnormal level of consciousness, activity, tone, or reflexes.”
A total of 8,024 infants (2.6%) had mothers who used SSRIs in the third trimester, and 510 (0.17%) were determined to have had NE.
After adjustment for maternal depression or anxiety, maternal age, race, and hospital, exposed neonates had 2.7 times higher odds of NE (odds ratio, 2.7).
Each 25 mg per day increase in the dose of SSRIs, as equalized to doses of sertraline (Zoloft), was linked to a significant 31% increase in the odds of developing NE (OR, 1.31).
The study doesn’t examine the benefits of SSRI treatment in pregnancy. Those taking SSRIs were much more likely to have depression during pregnancy (76.5% vs. 13.5%) and anxiety (56.7% vs. 6.9%), compared with those who did not take the drug.
The possible connection between SSRIs and NE is unclear. “SSRIs may contribute to NE by a withdrawal mechanism or by a toxicity mechanism. It is also possible that SSRIs themselves are not responsible for encephalopathy, or that the severity of maternal mental health is itself responsible for increased neonatal encephalopathy,” Dr. Cornet said. “However, we believe we adjusted our results thoroughly for that. Furthermore, in this cohort, neonates born from mothers with untreated depression were not at higher risk of encephalopathy than neonates born to mothers without depression.”
She added: “When infants have acidosis or require prolonged resuscitation after birth, they get treated with therapeutic hypothermia. This invasive treatment was shown to decrease mortality and morbidity in neonates with hypoxic-ischemic encephalopathy. However, therapeutic hypothermia may not be helpful in infants with encephalopathy due to other causes than acute hypoxia-ischemia, such as infection, inflammation, genetic conditions, or exposure to toxins. In the case of SSRIs, our results show that, while neonates often have encephalopathy, this encephalopathy is often mild and self-resolved. We did not see a statistically significant increase in acidosis or treatment with therapeutic hypothermia.”
In the future neurologists should consider SSRI use as a potential cause in cases of NE, Dr. Cornet said. “If there are no signs of hypoxic-ischemic encephalopathy – no evidence of acidosis, acute perinatal event – treatment with therapeutic hypothermia may not be indicated.”
Dr. Cornet said more research is in the works. “Studying the long-term side effect of SSRIs on neonatal brain development and injury is essential,” she said. “We plan to compare brain injury in neonates exposed and unexposed to SSRIs and examine long-term outcomes to assess if the effect of SSRI exposure is transient or has a lasting impact.”
This study was funded by the Thrasher Early Career Research Grant and by the Newborn Brain Research Innovation Award at UCSF. The authors have no relevant disclosures.
FROM CNS 2021