User login
Are patients with epilepsy at increased risk of COVID-19 infection?
Chronic conditions such as lung disease, diabetes, and heart disease frequently receive attention for increasing the risk of complications for people who contract the coronavirus. Meanwhile, many members of the epilepsy community continue to wonder how the virus affects them. To address these concerns, the Epilepsy Foundation has released information that answers many common questions that people with epilepsy have about how COVID-19 can impact their health.
Perhaps the most pressing of these questions is: Does epilepsy increase the risk or severity of the coronavirus?
“The most common thing we’re hearing from patients in my practice is their proactive concern for being at increased risk for getting the coronavirus,” confirmed Selim Benbadis, MD, division director, epilepsy, EEG, and sleep medicine at the University of South Florida in Tampa. “Epilepsy patients are not at increased risk for complications from the coronavirus because epilepsy does not affect the immune system.”
In other words, people who have epilepsy face the same health challenges as people who do not have the condition and are otherwise healthy. For this reason, people who have epilepsy should exercise the same habits and preventative measures that healthy people would typically take, such as social distancing; avoiding contact with sick people; washing hands regularly; disinfecting surfaces regularly; and avoiding touching hands, eyes, nose and mouth.
However, as Dr. Benbadis explained, the high fever associated with coronavirus can trigger seizures. The increased risk is another reason people who have epilepsy should do their best to avoid getting sick.
Seizure medications do not increase COVID-19 risk but other conditions can
Similarly, epilepsy medications do not increase the risk of contracting the disease.
“The medications patients take to treat their epilepsy do not affect their immune system,” said Andrew Wilner, MD, associate professor of neurology at the University of Tennessee Health Science Center, Memphis. There are a few exceptions – such as adrenocorticotropic hormone and everolimus – but doctors rarely use these drugs to treat epilepsy.
However, there are some situations and conditions that may pose a risk for people who contact the coronavirus. For instance, people who have problems swallowing their food and tend to suck food down their windpipes are more likely to develop pneumonia. Also, much like the general population, having diabetes, heart disease, or lung problems increase the chances of developing complications from the virus.
The best ways to avoid additional risks in epilepsy
Because of the pandemic, people who have epilepsy may have found that many of their doctors’ appointments have been canceled. Many clinics and medical practices have done this in order minimize exposing people who have acute illnesses to the virus. By focusing more on patients with acute conditions, doctors and nurses can better tend to patients with acute problems. As a result, practices have shifted to providing patient care using telemedicine as much as possible.
“Telemedicine services have surged, and I’ve been saying for years that telemedicine was going to grow,” Dr. Benbadis said. “It’s more convenient, and I believe that we’re going to see increased use of telemedicine long after the coronavirus pandemic is over.”
Aside from communicating with their doctors, the Epilepsy Foundation and Dr. Wilner stress that the best way for people who have epilepsy to stay healthy is by taking their medications on a regular basis exactly as prescribed.
“Taking mediation correctly and regularly is the best strategy for epilepsy patients to avoid unnecessary hospitalizations,” Dr. Wilner said. “If they have breakthrough seizures and get sent to the emergency room, then they risk being exposed to the virus in the ER.”
Also, because ERs are more crowded than usual, the Epilepsy Foundation encourages people who suspect they have the coronavirus to call their doctor’s office first. The goal is to try to make sure that people who have severe or life-threatening symptoms have access to treatment in the ER.
As with the general population, the first thing that epilepsy patients who suspect they have the coronavirus should do is call his or her doctor’s office. The health care professional taking the call will ask the patient a series of questions to determine whether the patient has COVID-19 or another condition or needs to seek emergency medical attention.
Fever, cough, and trouble breathing fall among the most commonly reported symptoms of the coronavirus. In many cases, health care providers recommend that people with mild versions of these symptoms stay at home.
Helpful tips
The Epilepsy Foundation offers tips on signs to look for when trying to figure out when a seizure requires an ER visit. These are:
- Seizures in which awareness is lost for more than 5 minutes and no reversal medications are available.
- Seizures with an unusual pattern or duration.
- Seizures that cannot be treated safely at home or are not responding to rescue medication even after the medication has had enough time to work.
- Seizures that occur after a severe blow to the head.
Additionally, while COVID-19 can cause death and sudden death in patients, the virus does not cause sudden unexpected death in epilepsy (SUDEP). Because SUDEP is extremely rare, Dr. Benbadis said that there is no information to suggest that contracting the coronavirus will increase the risk,
Finally, no shortages of seizures medications have been reported as a result of COVID-19. However, there were shortages of generic levetiracetam immediate-release and levetiracetam extended-release medications prior to and during COVID-19. Experts expect the shortage to continue.
Overall, people who have epilepsy should be able to stay healthy – provided they exercise healthy and preventative habits.
“The majority of epilepsy patients should be reassured that if they continue their usual care, take their meds as directed, get adequate sleep, nutritious diet, they’re not at any increased risk compared to the general population,” said Dr. Wilner.
Dr. Benbadis reported the following disclosures: consultant for Bioserenity (DigiTrace), Brain Sentinel, Cavion, Ceribell, Eisai, Greenwich, LivaNova, Neuropace, SK biopharmaceuticals, Sunovion; speakers bureau for Eisai, Greenwich, LivaNova, Sunovion; Florida Medical Director of Stratus/Alliance; Member: Epilepsy Study Consortium; grant support from Cavion, LivaNova, Greenwich, SK biopharmaceuticals, Sunovion, Takeda, UCB, Xenon; royalties as an author or editor for Emedicine-Medscape-WebMD, UpToDate; editorial board for the Epilepsy.com (Epilepsy Foundation) controversy section, Emedicine-Medscape-WebMD, Epileptic Disorders, Epilepsy and Behavior, and Expert Review of Neurotherapeutics. Dr. Wilner reports Medical Advisory Board of Accordant Health Services, Greensboro, S.C., and book royalties: “The Locum Life: A Physician’s Guide to Locum Tenens,” Lulu Press.
Chronic conditions such as lung disease, diabetes, and heart disease frequently receive attention for increasing the risk of complications for people who contract the coronavirus. Meanwhile, many members of the epilepsy community continue to wonder how the virus affects them. To address these concerns, the Epilepsy Foundation has released information that answers many common questions that people with epilepsy have about how COVID-19 can impact their health.
Perhaps the most pressing of these questions is: Does epilepsy increase the risk or severity of the coronavirus?
“The most common thing we’re hearing from patients in my practice is their proactive concern for being at increased risk for getting the coronavirus,” confirmed Selim Benbadis, MD, division director, epilepsy, EEG, and sleep medicine at the University of South Florida in Tampa. “Epilepsy patients are not at increased risk for complications from the coronavirus because epilepsy does not affect the immune system.”
In other words, people who have epilepsy face the same health challenges as people who do not have the condition and are otherwise healthy. For this reason, people who have epilepsy should exercise the same habits and preventative measures that healthy people would typically take, such as social distancing; avoiding contact with sick people; washing hands regularly; disinfecting surfaces regularly; and avoiding touching hands, eyes, nose and mouth.
However, as Dr. Benbadis explained, the high fever associated with coronavirus can trigger seizures. The increased risk is another reason people who have epilepsy should do their best to avoid getting sick.
Seizure medications do not increase COVID-19 risk but other conditions can
Similarly, epilepsy medications do not increase the risk of contracting the disease.
“The medications patients take to treat their epilepsy do not affect their immune system,” said Andrew Wilner, MD, associate professor of neurology at the University of Tennessee Health Science Center, Memphis. There are a few exceptions – such as adrenocorticotropic hormone and everolimus – but doctors rarely use these drugs to treat epilepsy.
However, there are some situations and conditions that may pose a risk for people who contact the coronavirus. For instance, people who have problems swallowing their food and tend to suck food down their windpipes are more likely to develop pneumonia. Also, much like the general population, having diabetes, heart disease, or lung problems increase the chances of developing complications from the virus.
The best ways to avoid additional risks in epilepsy
Because of the pandemic, people who have epilepsy may have found that many of their doctors’ appointments have been canceled. Many clinics and medical practices have done this in order minimize exposing people who have acute illnesses to the virus. By focusing more on patients with acute conditions, doctors and nurses can better tend to patients with acute problems. As a result, practices have shifted to providing patient care using telemedicine as much as possible.
“Telemedicine services have surged, and I’ve been saying for years that telemedicine was going to grow,” Dr. Benbadis said. “It’s more convenient, and I believe that we’re going to see increased use of telemedicine long after the coronavirus pandemic is over.”
Aside from communicating with their doctors, the Epilepsy Foundation and Dr. Wilner stress that the best way for people who have epilepsy to stay healthy is by taking their medications on a regular basis exactly as prescribed.
“Taking mediation correctly and regularly is the best strategy for epilepsy patients to avoid unnecessary hospitalizations,” Dr. Wilner said. “If they have breakthrough seizures and get sent to the emergency room, then they risk being exposed to the virus in the ER.”
Also, because ERs are more crowded than usual, the Epilepsy Foundation encourages people who suspect they have the coronavirus to call their doctor’s office first. The goal is to try to make sure that people who have severe or life-threatening symptoms have access to treatment in the ER.
As with the general population, the first thing that epilepsy patients who suspect they have the coronavirus should do is call his or her doctor’s office. The health care professional taking the call will ask the patient a series of questions to determine whether the patient has COVID-19 or another condition or needs to seek emergency medical attention.
Fever, cough, and trouble breathing fall among the most commonly reported symptoms of the coronavirus. In many cases, health care providers recommend that people with mild versions of these symptoms stay at home.
Helpful tips
The Epilepsy Foundation offers tips on signs to look for when trying to figure out when a seizure requires an ER visit. These are:
- Seizures in which awareness is lost for more than 5 minutes and no reversal medications are available.
- Seizures with an unusual pattern or duration.
- Seizures that cannot be treated safely at home or are not responding to rescue medication even after the medication has had enough time to work.
- Seizures that occur after a severe blow to the head.
Additionally, while COVID-19 can cause death and sudden death in patients, the virus does not cause sudden unexpected death in epilepsy (SUDEP). Because SUDEP is extremely rare, Dr. Benbadis said that there is no information to suggest that contracting the coronavirus will increase the risk,
Finally, no shortages of seizures medications have been reported as a result of COVID-19. However, there were shortages of generic levetiracetam immediate-release and levetiracetam extended-release medications prior to and during COVID-19. Experts expect the shortage to continue.
Overall, people who have epilepsy should be able to stay healthy – provided they exercise healthy and preventative habits.
“The majority of epilepsy patients should be reassured that if they continue their usual care, take their meds as directed, get adequate sleep, nutritious diet, they’re not at any increased risk compared to the general population,” said Dr. Wilner.
Dr. Benbadis reported the following disclosures: consultant for Bioserenity (DigiTrace), Brain Sentinel, Cavion, Ceribell, Eisai, Greenwich, LivaNova, Neuropace, SK biopharmaceuticals, Sunovion; speakers bureau for Eisai, Greenwich, LivaNova, Sunovion; Florida Medical Director of Stratus/Alliance; Member: Epilepsy Study Consortium; grant support from Cavion, LivaNova, Greenwich, SK biopharmaceuticals, Sunovion, Takeda, UCB, Xenon; royalties as an author or editor for Emedicine-Medscape-WebMD, UpToDate; editorial board for the Epilepsy.com (Epilepsy Foundation) controversy section, Emedicine-Medscape-WebMD, Epileptic Disorders, Epilepsy and Behavior, and Expert Review of Neurotherapeutics. Dr. Wilner reports Medical Advisory Board of Accordant Health Services, Greensboro, S.C., and book royalties: “The Locum Life: A Physician’s Guide to Locum Tenens,” Lulu Press.
Chronic conditions such as lung disease, diabetes, and heart disease frequently receive attention for increasing the risk of complications for people who contract the coronavirus. Meanwhile, many members of the epilepsy community continue to wonder how the virus affects them. To address these concerns, the Epilepsy Foundation has released information that answers many common questions that people with epilepsy have about how COVID-19 can impact their health.
Perhaps the most pressing of these questions is: Does epilepsy increase the risk or severity of the coronavirus?
“The most common thing we’re hearing from patients in my practice is their proactive concern for being at increased risk for getting the coronavirus,” confirmed Selim Benbadis, MD, division director, epilepsy, EEG, and sleep medicine at the University of South Florida in Tampa. “Epilepsy patients are not at increased risk for complications from the coronavirus because epilepsy does not affect the immune system.”
In other words, people who have epilepsy face the same health challenges as people who do not have the condition and are otherwise healthy. For this reason, people who have epilepsy should exercise the same habits and preventative measures that healthy people would typically take, such as social distancing; avoiding contact with sick people; washing hands regularly; disinfecting surfaces regularly; and avoiding touching hands, eyes, nose and mouth.
However, as Dr. Benbadis explained, the high fever associated with coronavirus can trigger seizures. The increased risk is another reason people who have epilepsy should do their best to avoid getting sick.
Seizure medications do not increase COVID-19 risk but other conditions can
Similarly, epilepsy medications do not increase the risk of contracting the disease.
“The medications patients take to treat their epilepsy do not affect their immune system,” said Andrew Wilner, MD, associate professor of neurology at the University of Tennessee Health Science Center, Memphis. There are a few exceptions – such as adrenocorticotropic hormone and everolimus – but doctors rarely use these drugs to treat epilepsy.
However, there are some situations and conditions that may pose a risk for people who contact the coronavirus. For instance, people who have problems swallowing their food and tend to suck food down their windpipes are more likely to develop pneumonia. Also, much like the general population, having diabetes, heart disease, or lung problems increase the chances of developing complications from the virus.
The best ways to avoid additional risks in epilepsy
Because of the pandemic, people who have epilepsy may have found that many of their doctors’ appointments have been canceled. Many clinics and medical practices have done this in order minimize exposing people who have acute illnesses to the virus. By focusing more on patients with acute conditions, doctors and nurses can better tend to patients with acute problems. As a result, practices have shifted to providing patient care using telemedicine as much as possible.
“Telemedicine services have surged, and I’ve been saying for years that telemedicine was going to grow,” Dr. Benbadis said. “It’s more convenient, and I believe that we’re going to see increased use of telemedicine long after the coronavirus pandemic is over.”
Aside from communicating with their doctors, the Epilepsy Foundation and Dr. Wilner stress that the best way for people who have epilepsy to stay healthy is by taking their medications on a regular basis exactly as prescribed.
“Taking mediation correctly and regularly is the best strategy for epilepsy patients to avoid unnecessary hospitalizations,” Dr. Wilner said. “If they have breakthrough seizures and get sent to the emergency room, then they risk being exposed to the virus in the ER.”
Also, because ERs are more crowded than usual, the Epilepsy Foundation encourages people who suspect they have the coronavirus to call their doctor’s office first. The goal is to try to make sure that people who have severe or life-threatening symptoms have access to treatment in the ER.
As with the general population, the first thing that epilepsy patients who suspect they have the coronavirus should do is call his or her doctor’s office. The health care professional taking the call will ask the patient a series of questions to determine whether the patient has COVID-19 or another condition or needs to seek emergency medical attention.
Fever, cough, and trouble breathing fall among the most commonly reported symptoms of the coronavirus. In many cases, health care providers recommend that people with mild versions of these symptoms stay at home.
Helpful tips
The Epilepsy Foundation offers tips on signs to look for when trying to figure out when a seizure requires an ER visit. These are:
- Seizures in which awareness is lost for more than 5 minutes and no reversal medications are available.
- Seizures with an unusual pattern or duration.
- Seizures that cannot be treated safely at home or are not responding to rescue medication even after the medication has had enough time to work.
- Seizures that occur after a severe blow to the head.
Additionally, while COVID-19 can cause death and sudden death in patients, the virus does not cause sudden unexpected death in epilepsy (SUDEP). Because SUDEP is extremely rare, Dr. Benbadis said that there is no information to suggest that contracting the coronavirus will increase the risk,
Finally, no shortages of seizures medications have been reported as a result of COVID-19. However, there were shortages of generic levetiracetam immediate-release and levetiracetam extended-release medications prior to and during COVID-19. Experts expect the shortage to continue.
Overall, people who have epilepsy should be able to stay healthy – provided they exercise healthy and preventative habits.
“The majority of epilepsy patients should be reassured that if they continue their usual care, take their meds as directed, get adequate sleep, nutritious diet, they’re not at any increased risk compared to the general population,” said Dr. Wilner.
Dr. Benbadis reported the following disclosures: consultant for Bioserenity (DigiTrace), Brain Sentinel, Cavion, Ceribell, Eisai, Greenwich, LivaNova, Neuropace, SK biopharmaceuticals, Sunovion; speakers bureau for Eisai, Greenwich, LivaNova, Sunovion; Florida Medical Director of Stratus/Alliance; Member: Epilepsy Study Consortium; grant support from Cavion, LivaNova, Greenwich, SK biopharmaceuticals, Sunovion, Takeda, UCB, Xenon; royalties as an author or editor for Emedicine-Medscape-WebMD, UpToDate; editorial board for the Epilepsy.com (Epilepsy Foundation) controversy section, Emedicine-Medscape-WebMD, Epileptic Disorders, Epilepsy and Behavior, and Expert Review of Neurotherapeutics. Dr. Wilner reports Medical Advisory Board of Accordant Health Services, Greensboro, S.C., and book royalties: “The Locum Life: A Physician’s Guide to Locum Tenens,” Lulu Press.
Artisanal CBD may provide less seizure control than pharmaceutical CBD
preliminary results of a small study indicate.
Given the widespread use of artisanal CBD products, Nathan T. Cohen, MD, pediatric epilepsy fellow, Children’s National Hospital, Washington, DC, and his colleagues wanted to know how these products differ from pharmaceutical grade CBD with respect to seizure control.
“One of the challenges or questions we have is whether there is any information that would guide us and suggest patients transition from artisanal to pharmaceutical grade CBD,” Dr. Cohen, who is lead author of the study, told Medscape Medical News.
The findings were released February 27 ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology. The AAN canceled the meeting and released abstracts and access to presenters for press coverage. The study received no outside funding.
In addition to helping relieve anxiety and stress, CBD, one of many constituents of Cannabis sativa, has antiseizure properties. The US Food and Drug Administration (FDA) has approved a pharmaceutical CBD (Epidiolex, GW Pharmaceuticals) for the management of seizures associated with Lennox-Gastaut syndrome (LGS) and Dravet syndrome.
This purified oral CBD prescription product does not contain tetrahydrocannabinol (THC), the component of marijuana that produces a “high.”
Popular products
Artisanal CBD, which has been around since the late 1970s, is manufactured using variable amounts of CBD and THC. Artisanal products, which typically come in the form of oils that are swallowed, are available in dispensaries and elsewhere, depending on the legal status in individual states.
These artisanal formulations are popular among patients with epilepsy and their families. On the basis of the advertising he sees, Dr. Cohen estimates there are at least 100 artisanal CBD products, but he was quick to stress he’s not an expert on artisanal CBD.
He noted that some families are “searching for an alternative treatment” to help control their child’s seizures, and if the seizure syndrome isn’t LGS or Dravet, “then technically, they don’t qualify for prescription-strength CBD,” said Dr. Cohen.
The current study was a retrospective chart review and included patients with epilepsy who underwent treatment with artisanal or pharmaceutical CBD for whom serum CBD levels were available.
In addition to CBD levels, the researchers had information on patients’ date of birth, gender, epilepsy diagnosis, artisanal or pharmaceutical CBD dose, seizure history, and side effects, among other things.
The analysis included 31 patients (48% female; mean age, about 10 years). Of these, 32% had LGS, 6% had Dravet, and the rest had other epilepsy syndromes.
Of the total, 22 patients participated in a pharmaceutical CBD expanded-access program. The remaining nine patients received artisanal CBD.
The mean serum CBD level was 30.1 ng/mL in the artisanal group and 124 ng/mL in the pharmaceutical group.
Dr. Cohen noted that artisanal products contain lower amounts of CBD because they’re not purified, and they may contain other compounds derived from marijuana.
At the last follow-up, which was a median of 11.8 months, patients who took artisanal CBD had a 70% increase in overall seizures. Dr. Cohen pointed out that some of the hundreds of compounds in marijuana could be “pro-convulsant.”
Some seizure free
The prescription CBD group experienced a 39% reduction in seizures. “Some of these kids had up to hundreds of seizures a day and went down to tens, and some kids became seizure free,” said Dr. Cohen.
Because the study was “looking back in time,” the investigators couldn’t determine whether age, type of epilepsy, or other factors affected seizure control in the two groups, said Dr. Cohen. “One of the limitations of a retrospective study is that we’re not able to control for those factors,” he said.
Eleven patients—all in the prescription CBD group—reported adverse effects, including somnolence, emesis, diarrhea, and diminished appetite; six discontinued CBD because of side effects.
Dr. Cohen said he’s not aware of any study that has compared artisanal products “head to head” with pharmaceutical grade CBD. “The whole point of this study was to ask the question, Is there a difference between the groups?, and these new data would suggest that there may be.”
The results appear to support giving encouragement to patients to transition from artisanal to pharmaceutical CBD if appropriate. “Anytime you’re giving your child a medication that has not been produced under the stringent guidelines that all pharmaceutical FDA-approved medications undergo, you don’t know exactly what’s in the product, and not knowing is a potential issue,” said Dr. Cohen.
The findings need to be studied in a more controlled setting “to make sure they’re valid,” said Dr. Cohen. Because this is “a very hot topic,” he’s keen to see what further research his colleagues would be interested in pursuing.
Commenting on the research, Joseph Sirven, MD, a neurologist in Scottsdale, Arizona, said this is an important study.
“It highlights one of the most common questions that I receive almost on a daily basis in my neurology practice,” he said.
Most people think that dispensary-based CBD is the same as prescription-based CBD, said Dr. Sirven. “Technically and theoretically, they certainly could be; however, what this study highlights is that in practice, they are not the same.”
He stressed that prescription CBD has to meet certain quality standards. “That means that whatever the ingredient list states about the concentration of CBD in the product has to be within the product, which is why the FDA approved it. It is, in essence, a quality control issue.”
A dispensary-based product does not need to meet such stringent standards and so “is subject to whatever the manufacturer chooses to put in the product,” said Dr. Sirven.
The study received no outside funding. Drs. Cohen and Sirven reported no relevant financial relationships.
This article first appeared on Medscape.com.
preliminary results of a small study indicate.
Given the widespread use of artisanal CBD products, Nathan T. Cohen, MD, pediatric epilepsy fellow, Children’s National Hospital, Washington, DC, and his colleagues wanted to know how these products differ from pharmaceutical grade CBD with respect to seizure control.
“One of the challenges or questions we have is whether there is any information that would guide us and suggest patients transition from artisanal to pharmaceutical grade CBD,” Dr. Cohen, who is lead author of the study, told Medscape Medical News.
The findings were released February 27 ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology. The AAN canceled the meeting and released abstracts and access to presenters for press coverage. The study received no outside funding.
In addition to helping relieve anxiety and stress, CBD, one of many constituents of Cannabis sativa, has antiseizure properties. The US Food and Drug Administration (FDA) has approved a pharmaceutical CBD (Epidiolex, GW Pharmaceuticals) for the management of seizures associated with Lennox-Gastaut syndrome (LGS) and Dravet syndrome.
This purified oral CBD prescription product does not contain tetrahydrocannabinol (THC), the component of marijuana that produces a “high.”
Popular products
Artisanal CBD, which has been around since the late 1970s, is manufactured using variable amounts of CBD and THC. Artisanal products, which typically come in the form of oils that are swallowed, are available in dispensaries and elsewhere, depending on the legal status in individual states.
These artisanal formulations are popular among patients with epilepsy and their families. On the basis of the advertising he sees, Dr. Cohen estimates there are at least 100 artisanal CBD products, but he was quick to stress he’s not an expert on artisanal CBD.
He noted that some families are “searching for an alternative treatment” to help control their child’s seizures, and if the seizure syndrome isn’t LGS or Dravet, “then technically, they don’t qualify for prescription-strength CBD,” said Dr. Cohen.
The current study was a retrospective chart review and included patients with epilepsy who underwent treatment with artisanal or pharmaceutical CBD for whom serum CBD levels were available.
In addition to CBD levels, the researchers had information on patients’ date of birth, gender, epilepsy diagnosis, artisanal or pharmaceutical CBD dose, seizure history, and side effects, among other things.
The analysis included 31 patients (48% female; mean age, about 10 years). Of these, 32% had LGS, 6% had Dravet, and the rest had other epilepsy syndromes.
Of the total, 22 patients participated in a pharmaceutical CBD expanded-access program. The remaining nine patients received artisanal CBD.
The mean serum CBD level was 30.1 ng/mL in the artisanal group and 124 ng/mL in the pharmaceutical group.
Dr. Cohen noted that artisanal products contain lower amounts of CBD because they’re not purified, and they may contain other compounds derived from marijuana.
At the last follow-up, which was a median of 11.8 months, patients who took artisanal CBD had a 70% increase in overall seizures. Dr. Cohen pointed out that some of the hundreds of compounds in marijuana could be “pro-convulsant.”
Some seizure free
The prescription CBD group experienced a 39% reduction in seizures. “Some of these kids had up to hundreds of seizures a day and went down to tens, and some kids became seizure free,” said Dr. Cohen.
Because the study was “looking back in time,” the investigators couldn’t determine whether age, type of epilepsy, or other factors affected seizure control in the two groups, said Dr. Cohen. “One of the limitations of a retrospective study is that we’re not able to control for those factors,” he said.
Eleven patients—all in the prescription CBD group—reported adverse effects, including somnolence, emesis, diarrhea, and diminished appetite; six discontinued CBD because of side effects.
Dr. Cohen said he’s not aware of any study that has compared artisanal products “head to head” with pharmaceutical grade CBD. “The whole point of this study was to ask the question, Is there a difference between the groups?, and these new data would suggest that there may be.”
The results appear to support giving encouragement to patients to transition from artisanal to pharmaceutical CBD if appropriate. “Anytime you’re giving your child a medication that has not been produced under the stringent guidelines that all pharmaceutical FDA-approved medications undergo, you don’t know exactly what’s in the product, and not knowing is a potential issue,” said Dr. Cohen.
The findings need to be studied in a more controlled setting “to make sure they’re valid,” said Dr. Cohen. Because this is “a very hot topic,” he’s keen to see what further research his colleagues would be interested in pursuing.
Commenting on the research, Joseph Sirven, MD, a neurologist in Scottsdale, Arizona, said this is an important study.
“It highlights one of the most common questions that I receive almost on a daily basis in my neurology practice,” he said.
Most people think that dispensary-based CBD is the same as prescription-based CBD, said Dr. Sirven. “Technically and theoretically, they certainly could be; however, what this study highlights is that in practice, they are not the same.”
He stressed that prescription CBD has to meet certain quality standards. “That means that whatever the ingredient list states about the concentration of CBD in the product has to be within the product, which is why the FDA approved it. It is, in essence, a quality control issue.”
A dispensary-based product does not need to meet such stringent standards and so “is subject to whatever the manufacturer chooses to put in the product,” said Dr. Sirven.
The study received no outside funding. Drs. Cohen and Sirven reported no relevant financial relationships.
This article first appeared on Medscape.com.
preliminary results of a small study indicate.
Given the widespread use of artisanal CBD products, Nathan T. Cohen, MD, pediatric epilepsy fellow, Children’s National Hospital, Washington, DC, and his colleagues wanted to know how these products differ from pharmaceutical grade CBD with respect to seizure control.
“One of the challenges or questions we have is whether there is any information that would guide us and suggest patients transition from artisanal to pharmaceutical grade CBD,” Dr. Cohen, who is lead author of the study, told Medscape Medical News.
The findings were released February 27 ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology. The AAN canceled the meeting and released abstracts and access to presenters for press coverage. The study received no outside funding.
In addition to helping relieve anxiety and stress, CBD, one of many constituents of Cannabis sativa, has antiseizure properties. The US Food and Drug Administration (FDA) has approved a pharmaceutical CBD (Epidiolex, GW Pharmaceuticals) for the management of seizures associated with Lennox-Gastaut syndrome (LGS) and Dravet syndrome.
This purified oral CBD prescription product does not contain tetrahydrocannabinol (THC), the component of marijuana that produces a “high.”
Popular products
Artisanal CBD, which has been around since the late 1970s, is manufactured using variable amounts of CBD and THC. Artisanal products, which typically come in the form of oils that are swallowed, are available in dispensaries and elsewhere, depending on the legal status in individual states.
These artisanal formulations are popular among patients with epilepsy and their families. On the basis of the advertising he sees, Dr. Cohen estimates there are at least 100 artisanal CBD products, but he was quick to stress he’s not an expert on artisanal CBD.
He noted that some families are “searching for an alternative treatment” to help control their child’s seizures, and if the seizure syndrome isn’t LGS or Dravet, “then technically, they don’t qualify for prescription-strength CBD,” said Dr. Cohen.
The current study was a retrospective chart review and included patients with epilepsy who underwent treatment with artisanal or pharmaceutical CBD for whom serum CBD levels were available.
In addition to CBD levels, the researchers had information on patients’ date of birth, gender, epilepsy diagnosis, artisanal or pharmaceutical CBD dose, seizure history, and side effects, among other things.
The analysis included 31 patients (48% female; mean age, about 10 years). Of these, 32% had LGS, 6% had Dravet, and the rest had other epilepsy syndromes.
Of the total, 22 patients participated in a pharmaceutical CBD expanded-access program. The remaining nine patients received artisanal CBD.
The mean serum CBD level was 30.1 ng/mL in the artisanal group and 124 ng/mL in the pharmaceutical group.
Dr. Cohen noted that artisanal products contain lower amounts of CBD because they’re not purified, and they may contain other compounds derived from marijuana.
At the last follow-up, which was a median of 11.8 months, patients who took artisanal CBD had a 70% increase in overall seizures. Dr. Cohen pointed out that some of the hundreds of compounds in marijuana could be “pro-convulsant.”
Some seizure free
The prescription CBD group experienced a 39% reduction in seizures. “Some of these kids had up to hundreds of seizures a day and went down to tens, and some kids became seizure free,” said Dr. Cohen.
Because the study was “looking back in time,” the investigators couldn’t determine whether age, type of epilepsy, or other factors affected seizure control in the two groups, said Dr. Cohen. “One of the limitations of a retrospective study is that we’re not able to control for those factors,” he said.
Eleven patients—all in the prescription CBD group—reported adverse effects, including somnolence, emesis, diarrhea, and diminished appetite; six discontinued CBD because of side effects.
Dr. Cohen said he’s not aware of any study that has compared artisanal products “head to head” with pharmaceutical grade CBD. “The whole point of this study was to ask the question, Is there a difference between the groups?, and these new data would suggest that there may be.”
The results appear to support giving encouragement to patients to transition from artisanal to pharmaceutical CBD if appropriate. “Anytime you’re giving your child a medication that has not been produced under the stringent guidelines that all pharmaceutical FDA-approved medications undergo, you don’t know exactly what’s in the product, and not knowing is a potential issue,” said Dr. Cohen.
The findings need to be studied in a more controlled setting “to make sure they’re valid,” said Dr. Cohen. Because this is “a very hot topic,” he’s keen to see what further research his colleagues would be interested in pursuing.
Commenting on the research, Joseph Sirven, MD, a neurologist in Scottsdale, Arizona, said this is an important study.
“It highlights one of the most common questions that I receive almost on a daily basis in my neurology practice,” he said.
Most people think that dispensary-based CBD is the same as prescription-based CBD, said Dr. Sirven. “Technically and theoretically, they certainly could be; however, what this study highlights is that in practice, they are not the same.”
He stressed that prescription CBD has to meet certain quality standards. “That means that whatever the ingredient list states about the concentration of CBD in the product has to be within the product, which is why the FDA approved it. It is, in essence, a quality control issue.”
A dispensary-based product does not need to meet such stringent standards and so “is subject to whatever the manufacturer chooses to put in the product,” said Dr. Sirven.
The study received no outside funding. Drs. Cohen and Sirven reported no relevant financial relationships.
This article first appeared on Medscape.com.
Expert says progress in gut-brain research requires an open mind
A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.
Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.
Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.
“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”
For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.
At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.
For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.
Dr. Cryan likened this process to an “artificial fecal transplant.”
“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”
While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.
“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.
He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.
“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”
In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.
“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”
According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.
Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.
“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”
In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.
In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.
“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”
To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.
“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.
Dr. Cryan concluded his presentation on an optimistic note.
“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”
Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.
A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.
Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.
Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.
“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”
For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.
At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.
For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.
Dr. Cryan likened this process to an “artificial fecal transplant.”
“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”
While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.
“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.
He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.
“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”
In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.
“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”
According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.
Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.
“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”
In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.
In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.
“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”
To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.
“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.
Dr. Cryan concluded his presentation on an optimistic note.
“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”
Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.
A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.
Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.
Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.
“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”
For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.
At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.
For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.
Dr. Cryan likened this process to an “artificial fecal transplant.”
“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”
While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.
“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.
He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.
“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”
In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.
“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”
According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.
Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.
“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”
In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.
In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.
“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”
To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.
“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.
Dr. Cryan concluded his presentation on an optimistic note.
“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”
Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.
FROM GMFH 2020
As costs for neurologic drugs rise, adherence to therapy drops
For their study, published online Feb. 19 in Neurology, Brian C. Callaghan, MD, of the University of Michigan, Ann Arbor, and colleagues looked at claims records from a large national private insurer to identify new cases of dementia, Parkinson’s disease, and neuropathy between 2001 and 2016, along with pharmacy records following diagnoses.
The researchers identified more than 52,000 patients with neuropathy on gabapentinoids and another 5,000 treated with serotonin-norepinephrine reuptake inhibitors for the same. They also identified some 20,000 patients with dementia taking cholinesterase inhibitors, and 3,000 with Parkinson’s disease taking dopamine agonists. Dr. Callaghan and colleagues compared patient adherence over 6 months for pairs of drugs in the same class with similar or equal efficacy, but with different costs to the patient.
Such cost differences can be stark: The researchers noted that the average 2016 out-of-pocket cost for 30 days of pregabalin, a drug used in the treatment of peripheral neuropathy, was $65.70, compared with $8.40 for gabapentin. With two common dementia drugs the difference was even more pronounced: $79.30 for rivastigmine compared with $3.10 for donepezil, both cholinesterase inhibitors with similar efficacy and tolerability.
Dr. Callaghan and colleagues found that such cost differences bore significantly on patient adherence. An increase of $50 in patient costs was seen decreasing adherence by 9% for neuropathy patients on gabapentinoids (adjusted incidence rate ratio [IRR] 0.91, 0.89-0.93) and by 12% for dementia patients on cholinesterase inhibitors (adjusted IRR 0.88, 0.86-0.91, P less than .05 for both). Similar price-linked decreases were seen for neuropathy patients on SNRIs and Parkinson’s patients on dopamine agonists, but the differences did not reach statistical significance.
Black, Asian, and Hispanic patients saw greater drops in adherence than did white patients associated with the same out-of-pocket cost differences, leading the researchers to note that special care should be taken in prescribing decisions for these populations.
“When choosing among medications with differential [out-of-pocket] costs, prescribing the medication with lower [out-of-pocket] expense will likely improve medication adherence while reducing overall costs,” Dr. Callaghan and colleagues wrote in their analysis. “For example, prescribing gabapentin or venlafaxine to patients with newly diagnosed neuropathy is likely to lead to higher adherence compared with pregabalin or duloxetine, and therefore, there is a higher likelihood of relief from neuropathic pain.” The researchers noted that while combination pills and extended-release formulations may be marketed as a way to increase adherence, the higher out-of-pocket costs of such medicines could offset any adherence benefit.
Dr. Callaghan and his colleagues described as strengths of their study its large sample and statistical approach that “allowed us to best estimate the causal relationship between [out-of-pocket] costs and medication adherence by limiting selection bias, residual confounding, and the confounding inherent to medication choice.” Nonadherence – patients who never filled a prescription after diagnosis – was not captured in the study.
The American Academy of Neurology funded the study. Two of its authors reported financial conflicts of interest in the form of compensation from pharmaceutical or device companies. Its lead author, Dr. Callaghan, reported funding for a device maker and performing medical legal consultations.
SOURCE: Reynolds EL et al. Neurology. 2020 Feb 19. doi/10.1212/WNL.0000000000009039.
For their study, published online Feb. 19 in Neurology, Brian C. Callaghan, MD, of the University of Michigan, Ann Arbor, and colleagues looked at claims records from a large national private insurer to identify new cases of dementia, Parkinson’s disease, and neuropathy between 2001 and 2016, along with pharmacy records following diagnoses.
The researchers identified more than 52,000 patients with neuropathy on gabapentinoids and another 5,000 treated with serotonin-norepinephrine reuptake inhibitors for the same. They also identified some 20,000 patients with dementia taking cholinesterase inhibitors, and 3,000 with Parkinson’s disease taking dopamine agonists. Dr. Callaghan and colleagues compared patient adherence over 6 months for pairs of drugs in the same class with similar or equal efficacy, but with different costs to the patient.
Such cost differences can be stark: The researchers noted that the average 2016 out-of-pocket cost for 30 days of pregabalin, a drug used in the treatment of peripheral neuropathy, was $65.70, compared with $8.40 for gabapentin. With two common dementia drugs the difference was even more pronounced: $79.30 for rivastigmine compared with $3.10 for donepezil, both cholinesterase inhibitors with similar efficacy and tolerability.
Dr. Callaghan and colleagues found that such cost differences bore significantly on patient adherence. An increase of $50 in patient costs was seen decreasing adherence by 9% for neuropathy patients on gabapentinoids (adjusted incidence rate ratio [IRR] 0.91, 0.89-0.93) and by 12% for dementia patients on cholinesterase inhibitors (adjusted IRR 0.88, 0.86-0.91, P less than .05 for both). Similar price-linked decreases were seen for neuropathy patients on SNRIs and Parkinson’s patients on dopamine agonists, but the differences did not reach statistical significance.
Black, Asian, and Hispanic patients saw greater drops in adherence than did white patients associated with the same out-of-pocket cost differences, leading the researchers to note that special care should be taken in prescribing decisions for these populations.
“When choosing among medications with differential [out-of-pocket] costs, prescribing the medication with lower [out-of-pocket] expense will likely improve medication adherence while reducing overall costs,” Dr. Callaghan and colleagues wrote in their analysis. “For example, prescribing gabapentin or venlafaxine to patients with newly diagnosed neuropathy is likely to lead to higher adherence compared with pregabalin or duloxetine, and therefore, there is a higher likelihood of relief from neuropathic pain.” The researchers noted that while combination pills and extended-release formulations may be marketed as a way to increase adherence, the higher out-of-pocket costs of such medicines could offset any adherence benefit.
Dr. Callaghan and his colleagues described as strengths of their study its large sample and statistical approach that “allowed us to best estimate the causal relationship between [out-of-pocket] costs and medication adherence by limiting selection bias, residual confounding, and the confounding inherent to medication choice.” Nonadherence – patients who never filled a prescription after diagnosis – was not captured in the study.
The American Academy of Neurology funded the study. Two of its authors reported financial conflicts of interest in the form of compensation from pharmaceutical or device companies. Its lead author, Dr. Callaghan, reported funding for a device maker and performing medical legal consultations.
SOURCE: Reynolds EL et al. Neurology. 2020 Feb 19. doi/10.1212/WNL.0000000000009039.
For their study, published online Feb. 19 in Neurology, Brian C. Callaghan, MD, of the University of Michigan, Ann Arbor, and colleagues looked at claims records from a large national private insurer to identify new cases of dementia, Parkinson’s disease, and neuropathy between 2001 and 2016, along with pharmacy records following diagnoses.
The researchers identified more than 52,000 patients with neuropathy on gabapentinoids and another 5,000 treated with serotonin-norepinephrine reuptake inhibitors for the same. They also identified some 20,000 patients with dementia taking cholinesterase inhibitors, and 3,000 with Parkinson’s disease taking dopamine agonists. Dr. Callaghan and colleagues compared patient adherence over 6 months for pairs of drugs in the same class with similar or equal efficacy, but with different costs to the patient.
Such cost differences can be stark: The researchers noted that the average 2016 out-of-pocket cost for 30 days of pregabalin, a drug used in the treatment of peripheral neuropathy, was $65.70, compared with $8.40 for gabapentin. With two common dementia drugs the difference was even more pronounced: $79.30 for rivastigmine compared with $3.10 for donepezil, both cholinesterase inhibitors with similar efficacy and tolerability.
Dr. Callaghan and colleagues found that such cost differences bore significantly on patient adherence. An increase of $50 in patient costs was seen decreasing adherence by 9% for neuropathy patients on gabapentinoids (adjusted incidence rate ratio [IRR] 0.91, 0.89-0.93) and by 12% for dementia patients on cholinesterase inhibitors (adjusted IRR 0.88, 0.86-0.91, P less than .05 for both). Similar price-linked decreases were seen for neuropathy patients on SNRIs and Parkinson’s patients on dopamine agonists, but the differences did not reach statistical significance.
Black, Asian, and Hispanic patients saw greater drops in adherence than did white patients associated with the same out-of-pocket cost differences, leading the researchers to note that special care should be taken in prescribing decisions for these populations.
“When choosing among medications with differential [out-of-pocket] costs, prescribing the medication with lower [out-of-pocket] expense will likely improve medication adherence while reducing overall costs,” Dr. Callaghan and colleagues wrote in their analysis. “For example, prescribing gabapentin or venlafaxine to patients with newly diagnosed neuropathy is likely to lead to higher adherence compared with pregabalin or duloxetine, and therefore, there is a higher likelihood of relief from neuropathic pain.” The researchers noted that while combination pills and extended-release formulations may be marketed as a way to increase adherence, the higher out-of-pocket costs of such medicines could offset any adherence benefit.
Dr. Callaghan and his colleagues described as strengths of their study its large sample and statistical approach that “allowed us to best estimate the causal relationship between [out-of-pocket] costs and medication adherence by limiting selection bias, residual confounding, and the confounding inherent to medication choice.” Nonadherence – patients who never filled a prescription after diagnosis – was not captured in the study.
The American Academy of Neurology funded the study. Two of its authors reported financial conflicts of interest in the form of compensation from pharmaceutical or device companies. Its lead author, Dr. Callaghan, reported funding for a device maker and performing medical legal consultations.
SOURCE: Reynolds EL et al. Neurology. 2020 Feb 19. doi/10.1212/WNL.0000000000009039.
FROM NEUROLOGY
Antiepileptic drugs may not independently impair cognition
according to research published online ahead of print Feb. 3 in Neurology. Optimizing AED therapy to reduce or prevent seizures is thus unlikely to affect cognition, according to the investigators.
Patients who take AEDs commonly report cognitive problems, but investigations into the cognitive effects of AEDs have yielded inconsistent results. “We were also interested in this association, as we often treat complex patients taking multiple or high-dose AEDs, and our patients often report cognitive dysfunction,” said Emma Foster, MBBS, an epilepsy fellow at Alfred Health and the Royal Melbourne Hospital in Victoria, Australia. “We were particularly interested to examine how much AEDs affect cognition relative to other factors. We commonly see patients in our tertiary epilepsy care unit who have had severe epilepsy for a long time or who have psychiatric disorders, and these factors may also contribute to cognitive dysfunction.”
Researchers analyzed patients admitted for video EEG monitoring
For their study, Dr. Foster and colleagues prospectively enrolled patients admitted to the Royal Melbourne Hospital’s video EEG monitoring unit between January 2009 and December 2016. Patients were included in the study if they were age 18 years or older, had been admitted for diagnostic or surgical evaluation, and had complete data for the relevant variables. Patients were prescribed AED monotherapy or polytherapy.
The researchers based epilepsy diagnoses on the 2014 International League Against Epilepsy criteria. Diagnoses of psychogenic nonepileptic seizures (PNES) were based on a consensus of epileptologists at weekly multidisciplinary clinical meetings, which was supported by evaluation of all available data. Some patients received a diagnosis of comorbid epilepsy and PNES. If data were insufficient to support a diagnosis of epilepsy or PNES, the admission was considered nondiagnostic.
All participants underwent neuropsychologic and neuropsychiatric screening. Researchers assessed patients’ objective, global cognitive function using the Neuropsychiatry Unit Cognitive Assessment Tool (NUCOG), a validated instrument. Patients responded to the Quality of Life in Epilepsy inventory (QOLIE-89) to provide a measure of subjective cognitive function. They also responded to the Hospital Anxiety and Depression Scale (HADS) to screen for mood disorders.
Dr. Foster and colleagues measured seizure frequency through patient self-report. Patients averaged their seizure frequency during the 12-month period before admission to the video EEG unit. They categorized it according to a 12-point system in which 0 denotes patients who are seizure-free and not taking AEDs and 12 denotes patients in status epilepticus. Patients with PNES used the same scale to report event frequency, although the system was not designed for this purpose.
Almost half of patients were prescribed polypharmacy
The researchers included 331 patients in their analysis. The population’s mean age was 39.3 years, and about 62% of patients were female. Approximately 47% of patients had epilepsy, 25.7% had PNES, 6.6% had comorbid epilepsy and PNES, and 20.5% had a nondiagnostic outcome. Among patients with epilepsy, most (54.5%) had temporal lobe epilepsy, followed by extratemporal focal epilepsy (32.1%) and generalized epilepsy (13.5%). The mean number of AEDs prescribed on admission was 1.6, and mean seizure or event frequency score was 7.2, which indicated 1-3 seizures per month. Mean HADS depression score was within the normal range (5.7), and mean HADS anxiety score was in the borderline range (8.2).
Approximately 45% of patients were prescribed AED polypharmacy on admission, 25.1% were prescribed AED monotherapy, and 29.9% were prescribed no AED. Levetiracetam, valproate, and carbamazepine were the most frequently prescribed AEDs. Most patients with epilepsy (73.1%) were on polypharmacy, compared with 17.6% of patients with PNES, 63.6% of patients with epilepsy and PNES, and 8.8% of nondiagnostic patients.
Older age and greater seizure frequency predicted impaired objective cognitive function. Comorbid epilepsy and PNES appeared to predict impaired objective cognitive function as well, but the data were inconclusive. No AED was a significant predictor of objective cognitive function. Higher depression and anxiety scores and greater seizure frequency predicted impaired subjective cognitive function. No AED predicted subjective cognitive function.
Future studies could address particular cognitive domains
Previous studies have suggested that treatment with topiramate predicts objective or subjective cognitive function, but Dr. Foster and colleagues did not observe this result. The current findings suggest that topiramate may have a less significant effect on cognition than the literature suggests, they wrote. In addition, more evidence is needed to fully understand the effects of clobazam, valproate, phenytoin, and gabapentin because the analysis was underpowered for these drugs.
Although NUCOG assesses global cognitive function reliably, its ability to measure particular cognitive subdomains is limited. “We aim to conduct future research investigating the complex associations between different cognitive functions, including processing speed, and specific AEDs in this heterogeneous population,” said Dr. Foster.
Despite the study’s large sample size, the researchers could not explore potential interactions between various predictor variables. “Epilepsy may interact with the aging process or with other medical conditions associated with aging, such as hypertension and diabetes, and this may increase the risk of cognitive decline,” said Dr. Foster. “Older age may also be associated with reduced capacity to metabolize drugs, increased sensitivity to the cognitive and neurological effects of drugs, less cognitive reserve, and increased likelihood of taking multiple medications, which, along with AEDs, may exert a cognitive effect.”
The current findings may reduce concerns about the effects of AEDs on cognitive function and encourage neurologists to pursue the proper dosing for optimal seizure control, wrote the authors. “However, it is possible that some individuals may be more susceptible than others to AED-related cognitive dysfunction,” said Dr. Foster. “We do not have a robust way to predict who these patients will be, and it is still good practice to make patients aware that some people experience adverse cognitive effects from AEDs. However, it needs to be emphasized that it is unlikely to be the sole reason for their cognitive impairment. Other issues, such as poor seizure control or unrecognized or undertreated mood disorders, are even more important factors for impaired cognition.”
Patients who report cognitive problems should be screened for mood disorders, Dr. Foster continued. “It would also be important to consider whether the patients’ cognitive complaints arise from subtle clinical or subclinical seizure activity and subsequent postictal periods. To investigate this [question] further, clinicians may arrange for prolonged EEG monitoring. This [monitoring] could be done in an ambulatory setting or during an inpatient admission.”
The study was conducted without external funding. Dr. Foster and other investigators reported research funding from professional associations and pharmaceutical companies that was unrelated to the study.
SOURCE: Foster E et al. Neurology. 2020 Feb 3. doi: 10.1212/WNL.0000000000009061.
according to research published online ahead of print Feb. 3 in Neurology. Optimizing AED therapy to reduce or prevent seizures is thus unlikely to affect cognition, according to the investigators.
Patients who take AEDs commonly report cognitive problems, but investigations into the cognitive effects of AEDs have yielded inconsistent results. “We were also interested in this association, as we often treat complex patients taking multiple or high-dose AEDs, and our patients often report cognitive dysfunction,” said Emma Foster, MBBS, an epilepsy fellow at Alfred Health and the Royal Melbourne Hospital in Victoria, Australia. “We were particularly interested to examine how much AEDs affect cognition relative to other factors. We commonly see patients in our tertiary epilepsy care unit who have had severe epilepsy for a long time or who have psychiatric disorders, and these factors may also contribute to cognitive dysfunction.”
Researchers analyzed patients admitted for video EEG monitoring
For their study, Dr. Foster and colleagues prospectively enrolled patients admitted to the Royal Melbourne Hospital’s video EEG monitoring unit between January 2009 and December 2016. Patients were included in the study if they were age 18 years or older, had been admitted for diagnostic or surgical evaluation, and had complete data for the relevant variables. Patients were prescribed AED monotherapy or polytherapy.
The researchers based epilepsy diagnoses on the 2014 International League Against Epilepsy criteria. Diagnoses of psychogenic nonepileptic seizures (PNES) were based on a consensus of epileptologists at weekly multidisciplinary clinical meetings, which was supported by evaluation of all available data. Some patients received a diagnosis of comorbid epilepsy and PNES. If data were insufficient to support a diagnosis of epilepsy or PNES, the admission was considered nondiagnostic.
All participants underwent neuropsychologic and neuropsychiatric screening. Researchers assessed patients’ objective, global cognitive function using the Neuropsychiatry Unit Cognitive Assessment Tool (NUCOG), a validated instrument. Patients responded to the Quality of Life in Epilepsy inventory (QOLIE-89) to provide a measure of subjective cognitive function. They also responded to the Hospital Anxiety and Depression Scale (HADS) to screen for mood disorders.
Dr. Foster and colleagues measured seizure frequency through patient self-report. Patients averaged their seizure frequency during the 12-month period before admission to the video EEG unit. They categorized it according to a 12-point system in which 0 denotes patients who are seizure-free and not taking AEDs and 12 denotes patients in status epilepticus. Patients with PNES used the same scale to report event frequency, although the system was not designed for this purpose.
Almost half of patients were prescribed polypharmacy
The researchers included 331 patients in their analysis. The population’s mean age was 39.3 years, and about 62% of patients were female. Approximately 47% of patients had epilepsy, 25.7% had PNES, 6.6% had comorbid epilepsy and PNES, and 20.5% had a nondiagnostic outcome. Among patients with epilepsy, most (54.5%) had temporal lobe epilepsy, followed by extratemporal focal epilepsy (32.1%) and generalized epilepsy (13.5%). The mean number of AEDs prescribed on admission was 1.6, and mean seizure or event frequency score was 7.2, which indicated 1-3 seizures per month. Mean HADS depression score was within the normal range (5.7), and mean HADS anxiety score was in the borderline range (8.2).
Approximately 45% of patients were prescribed AED polypharmacy on admission, 25.1% were prescribed AED monotherapy, and 29.9% were prescribed no AED. Levetiracetam, valproate, and carbamazepine were the most frequently prescribed AEDs. Most patients with epilepsy (73.1%) were on polypharmacy, compared with 17.6% of patients with PNES, 63.6% of patients with epilepsy and PNES, and 8.8% of nondiagnostic patients.
Older age and greater seizure frequency predicted impaired objective cognitive function. Comorbid epilepsy and PNES appeared to predict impaired objective cognitive function as well, but the data were inconclusive. No AED was a significant predictor of objective cognitive function. Higher depression and anxiety scores and greater seizure frequency predicted impaired subjective cognitive function. No AED predicted subjective cognitive function.
Future studies could address particular cognitive domains
Previous studies have suggested that treatment with topiramate predicts objective or subjective cognitive function, but Dr. Foster and colleagues did not observe this result. The current findings suggest that topiramate may have a less significant effect on cognition than the literature suggests, they wrote. In addition, more evidence is needed to fully understand the effects of clobazam, valproate, phenytoin, and gabapentin because the analysis was underpowered for these drugs.
Although NUCOG assesses global cognitive function reliably, its ability to measure particular cognitive subdomains is limited. “We aim to conduct future research investigating the complex associations between different cognitive functions, including processing speed, and specific AEDs in this heterogeneous population,” said Dr. Foster.
Despite the study’s large sample size, the researchers could not explore potential interactions between various predictor variables. “Epilepsy may interact with the aging process or with other medical conditions associated with aging, such as hypertension and diabetes, and this may increase the risk of cognitive decline,” said Dr. Foster. “Older age may also be associated with reduced capacity to metabolize drugs, increased sensitivity to the cognitive and neurological effects of drugs, less cognitive reserve, and increased likelihood of taking multiple medications, which, along with AEDs, may exert a cognitive effect.”
The current findings may reduce concerns about the effects of AEDs on cognitive function and encourage neurologists to pursue the proper dosing for optimal seizure control, wrote the authors. “However, it is possible that some individuals may be more susceptible than others to AED-related cognitive dysfunction,” said Dr. Foster. “We do not have a robust way to predict who these patients will be, and it is still good practice to make patients aware that some people experience adverse cognitive effects from AEDs. However, it needs to be emphasized that it is unlikely to be the sole reason for their cognitive impairment. Other issues, such as poor seizure control or unrecognized or undertreated mood disorders, are even more important factors for impaired cognition.”
Patients who report cognitive problems should be screened for mood disorders, Dr. Foster continued. “It would also be important to consider whether the patients’ cognitive complaints arise from subtle clinical or subclinical seizure activity and subsequent postictal periods. To investigate this [question] further, clinicians may arrange for prolonged EEG monitoring. This [monitoring] could be done in an ambulatory setting or during an inpatient admission.”
The study was conducted without external funding. Dr. Foster and other investigators reported research funding from professional associations and pharmaceutical companies that was unrelated to the study.
SOURCE: Foster E et al. Neurology. 2020 Feb 3. doi: 10.1212/WNL.0000000000009061.
according to research published online ahead of print Feb. 3 in Neurology. Optimizing AED therapy to reduce or prevent seizures is thus unlikely to affect cognition, according to the investigators.
Patients who take AEDs commonly report cognitive problems, but investigations into the cognitive effects of AEDs have yielded inconsistent results. “We were also interested in this association, as we often treat complex patients taking multiple or high-dose AEDs, and our patients often report cognitive dysfunction,” said Emma Foster, MBBS, an epilepsy fellow at Alfred Health and the Royal Melbourne Hospital in Victoria, Australia. “We were particularly interested to examine how much AEDs affect cognition relative to other factors. We commonly see patients in our tertiary epilepsy care unit who have had severe epilepsy for a long time or who have psychiatric disorders, and these factors may also contribute to cognitive dysfunction.”
Researchers analyzed patients admitted for video EEG monitoring
For their study, Dr. Foster and colleagues prospectively enrolled patients admitted to the Royal Melbourne Hospital’s video EEG monitoring unit between January 2009 and December 2016. Patients were included in the study if they were age 18 years or older, had been admitted for diagnostic or surgical evaluation, and had complete data for the relevant variables. Patients were prescribed AED monotherapy or polytherapy.
The researchers based epilepsy diagnoses on the 2014 International League Against Epilepsy criteria. Diagnoses of psychogenic nonepileptic seizures (PNES) were based on a consensus of epileptologists at weekly multidisciplinary clinical meetings, which was supported by evaluation of all available data. Some patients received a diagnosis of comorbid epilepsy and PNES. If data were insufficient to support a diagnosis of epilepsy or PNES, the admission was considered nondiagnostic.
All participants underwent neuropsychologic and neuropsychiatric screening. Researchers assessed patients’ objective, global cognitive function using the Neuropsychiatry Unit Cognitive Assessment Tool (NUCOG), a validated instrument. Patients responded to the Quality of Life in Epilepsy inventory (QOLIE-89) to provide a measure of subjective cognitive function. They also responded to the Hospital Anxiety and Depression Scale (HADS) to screen for mood disorders.
Dr. Foster and colleagues measured seizure frequency through patient self-report. Patients averaged their seizure frequency during the 12-month period before admission to the video EEG unit. They categorized it according to a 12-point system in which 0 denotes patients who are seizure-free and not taking AEDs and 12 denotes patients in status epilepticus. Patients with PNES used the same scale to report event frequency, although the system was not designed for this purpose.
Almost half of patients were prescribed polypharmacy
The researchers included 331 patients in their analysis. The population’s mean age was 39.3 years, and about 62% of patients were female. Approximately 47% of patients had epilepsy, 25.7% had PNES, 6.6% had comorbid epilepsy and PNES, and 20.5% had a nondiagnostic outcome. Among patients with epilepsy, most (54.5%) had temporal lobe epilepsy, followed by extratemporal focal epilepsy (32.1%) and generalized epilepsy (13.5%). The mean number of AEDs prescribed on admission was 1.6, and mean seizure or event frequency score was 7.2, which indicated 1-3 seizures per month. Mean HADS depression score was within the normal range (5.7), and mean HADS anxiety score was in the borderline range (8.2).
Approximately 45% of patients were prescribed AED polypharmacy on admission, 25.1% were prescribed AED monotherapy, and 29.9% were prescribed no AED. Levetiracetam, valproate, and carbamazepine were the most frequently prescribed AEDs. Most patients with epilepsy (73.1%) were on polypharmacy, compared with 17.6% of patients with PNES, 63.6% of patients with epilepsy and PNES, and 8.8% of nondiagnostic patients.
Older age and greater seizure frequency predicted impaired objective cognitive function. Comorbid epilepsy and PNES appeared to predict impaired objective cognitive function as well, but the data were inconclusive. No AED was a significant predictor of objective cognitive function. Higher depression and anxiety scores and greater seizure frequency predicted impaired subjective cognitive function. No AED predicted subjective cognitive function.
Future studies could address particular cognitive domains
Previous studies have suggested that treatment with topiramate predicts objective or subjective cognitive function, but Dr. Foster and colleagues did not observe this result. The current findings suggest that topiramate may have a less significant effect on cognition than the literature suggests, they wrote. In addition, more evidence is needed to fully understand the effects of clobazam, valproate, phenytoin, and gabapentin because the analysis was underpowered for these drugs.
Although NUCOG assesses global cognitive function reliably, its ability to measure particular cognitive subdomains is limited. “We aim to conduct future research investigating the complex associations between different cognitive functions, including processing speed, and specific AEDs in this heterogeneous population,” said Dr. Foster.
Despite the study’s large sample size, the researchers could not explore potential interactions between various predictor variables. “Epilepsy may interact with the aging process or with other medical conditions associated with aging, such as hypertension and diabetes, and this may increase the risk of cognitive decline,” said Dr. Foster. “Older age may also be associated with reduced capacity to metabolize drugs, increased sensitivity to the cognitive and neurological effects of drugs, less cognitive reserve, and increased likelihood of taking multiple medications, which, along with AEDs, may exert a cognitive effect.”
The current findings may reduce concerns about the effects of AEDs on cognitive function and encourage neurologists to pursue the proper dosing for optimal seizure control, wrote the authors. “However, it is possible that some individuals may be more susceptible than others to AED-related cognitive dysfunction,” said Dr. Foster. “We do not have a robust way to predict who these patients will be, and it is still good practice to make patients aware that some people experience adverse cognitive effects from AEDs. However, it needs to be emphasized that it is unlikely to be the sole reason for their cognitive impairment. Other issues, such as poor seizure control or unrecognized or undertreated mood disorders, are even more important factors for impaired cognition.”
Patients who report cognitive problems should be screened for mood disorders, Dr. Foster continued. “It would also be important to consider whether the patients’ cognitive complaints arise from subtle clinical or subclinical seizure activity and subsequent postictal periods. To investigate this [question] further, clinicians may arrange for prolonged EEG monitoring. This [monitoring] could be done in an ambulatory setting or during an inpatient admission.”
The study was conducted without external funding. Dr. Foster and other investigators reported research funding from professional associations and pharmaceutical companies that was unrelated to the study.
SOURCE: Foster E et al. Neurology. 2020 Feb 3. doi: 10.1212/WNL.0000000000009061.
FROM NEUROLOGY
Functional outcomes of SLAH may be superior to those of open resection
BALTIMORE – , according to data presented at the annual meeting of the American Epilepsy Society. In addition, improvements in functional status are strongly associated with improvements in global cognitive performance.
Previous data have indicated that SLAH results in superior cognitive outcomes, compared with selective and standard open resection, in the treatment of medial temporal lobe epilepsy. The rates of seizure freedom following these procedures are equivalent. Daniel Drane, PhD, associate professor of neurology at Emory University in Atlanta, and colleagues hypothesized that the preservation of cognitive skills following SLAH would be apparent in real-world settings. To test this hypothesis, they investigated changes in functional status following SLAH.
Functional status correlated with neurocognitive change
Dr. Drane and colleagues compared functional outcomes in 53 patients who underwent SLAH at the Emory University Epilepsy Center and 20 patients who underwent open resection at the same center. The investigators created a hierarchical classification of functional status using the following criteria (from best to worst): employed and independent with all activities of daily living (ADLs), unemployed and independent with all ADLs, unemployed and independent with lower ADLs only (i.e., independent with self-care, but not with management of finances, medications, etc.), and unemployed and unable to manage any ADLs without assistance. Dr. Drane and colleagues rated all patients on these criteria at baseline and at 1 year after surgery. They classified patients as improving, declining, or remaining stable in functional status. Finally, the investigators used Fisher’s exact test to compare the proportional ratings of change between surgical procedures.
At baseline, the proportions of patients in each functional group were similar between patients who later underwent SLAH and those who later underwent open resection. Significantly more patients who underwent SLAH, however, had functional improvement, compared with patients who underwent open resection (13.2% vs. 0%). Furthermore, fewer patients who underwent SLAH had functional decline, compared with those who underwent open resection (3.7% vs. 35%).
Dr. Drane and colleagues found a strong correlation between functional status and global ratings of neurocognitive change, but no correlation between functional status and seizure-freedom status. Patients who underwent SLAH were less likely to have a decline in employment status than were patients who underwent open resection were (4.2% vs. 45.4%).
Weighing surgical options for a given patient
“This study provides a real-world metric of meaningful change following surgery, which is, critically, independent of seizure freedom outcome,” said Dr. Drane. “If a patient becomes seizure free but declines in functional status, presumably due to compromised cognitive function, this outcome is likely not going to lead to a better quality of life. Overall, our data suggest that functional status is driven more by cognitive outcome than by seizure freedom, and that it is an equally important metric for determining whether or not surgery has been successful. We would hope that the epilepsy surgical team would try to balance the desire to achieve seizure freedom against the potential risks and benefits of surgery on cognitive performance and functional status.”
Neurologists must consider various factors when deciding whether open resection or SLAH is the better option for a given patient. “Our prior work has shown that SLAH will not cause naming or object recognition deficits, while such deficits will result in a substantial proportion of patients undergoing open resection procedures,” said Dr. Drane. “Declarative memory can seemingly be hurt by either procedure, although it would appear that rates of decline are substantially less following SLAH. As functional status appears to be related to cognitive outcome, SLAH would always be the better choice from the standpoint of risk analysis, particularly since one can almost always go back an complete an open resection at a later date.
“Seizure freedom rates appear to be slightly higher with open resection than with SLAH,” Dr. Drane continued. “This [result] would be the one factor that would represent the one reason to opt for an open resection rather than SLAH. Factors that might push one in this direction could be risk for SUDEP (i.e., someone at very high risk may want to just be done with the seizures) and impaired baseline cognitive functioning (i.e., someone with severely impaired cognitive functioning might be viewed as having less to lose). In the latter case, however, we would caution that low-functioning individuals can sometimes lose their remaining functional abilities even if we cannot do a very good job of measuring cognitive change in such cases due to their poor baseline performance.”
The hemisphere to undergo operation also may influence the choice of procedure. “Some epileptologists will suggest that the choice of using SLAH is more important for patients having surgery involving their language-dominant cerebral hemisphere,” said Dr. Drane. “While postsurgical deficits in these patients are clearly more easy to identify, I would argue that a case can be made for starting with SLAH in the nondominant temporal lobe cases as well. Many of the functions that can be potentially harmed by surgical procedures involving the nondominant (typically right) hemisphere have more subtle effects, but their cumulative impact can yet be harmful.”
The study was partially supported by funding from the National Institutes of Health and Medtronic. The investigators did not report any conflicts of interest.
SOURCE: Drane DL et al. AES 2019. Abstract 1.34.
BALTIMORE – , according to data presented at the annual meeting of the American Epilepsy Society. In addition, improvements in functional status are strongly associated with improvements in global cognitive performance.
Previous data have indicated that SLAH results in superior cognitive outcomes, compared with selective and standard open resection, in the treatment of medial temporal lobe epilepsy. The rates of seizure freedom following these procedures are equivalent. Daniel Drane, PhD, associate professor of neurology at Emory University in Atlanta, and colleagues hypothesized that the preservation of cognitive skills following SLAH would be apparent in real-world settings. To test this hypothesis, they investigated changes in functional status following SLAH.
Functional status correlated with neurocognitive change
Dr. Drane and colleagues compared functional outcomes in 53 patients who underwent SLAH at the Emory University Epilepsy Center and 20 patients who underwent open resection at the same center. The investigators created a hierarchical classification of functional status using the following criteria (from best to worst): employed and independent with all activities of daily living (ADLs), unemployed and independent with all ADLs, unemployed and independent with lower ADLs only (i.e., independent with self-care, but not with management of finances, medications, etc.), and unemployed and unable to manage any ADLs without assistance. Dr. Drane and colleagues rated all patients on these criteria at baseline and at 1 year after surgery. They classified patients as improving, declining, or remaining stable in functional status. Finally, the investigators used Fisher’s exact test to compare the proportional ratings of change between surgical procedures.
At baseline, the proportions of patients in each functional group were similar between patients who later underwent SLAH and those who later underwent open resection. Significantly more patients who underwent SLAH, however, had functional improvement, compared with patients who underwent open resection (13.2% vs. 0%). Furthermore, fewer patients who underwent SLAH had functional decline, compared with those who underwent open resection (3.7% vs. 35%).
Dr. Drane and colleagues found a strong correlation between functional status and global ratings of neurocognitive change, but no correlation between functional status and seizure-freedom status. Patients who underwent SLAH were less likely to have a decline in employment status than were patients who underwent open resection were (4.2% vs. 45.4%).
Weighing surgical options for a given patient
“This study provides a real-world metric of meaningful change following surgery, which is, critically, independent of seizure freedom outcome,” said Dr. Drane. “If a patient becomes seizure free but declines in functional status, presumably due to compromised cognitive function, this outcome is likely not going to lead to a better quality of life. Overall, our data suggest that functional status is driven more by cognitive outcome than by seizure freedom, and that it is an equally important metric for determining whether or not surgery has been successful. We would hope that the epilepsy surgical team would try to balance the desire to achieve seizure freedom against the potential risks and benefits of surgery on cognitive performance and functional status.”
Neurologists must consider various factors when deciding whether open resection or SLAH is the better option for a given patient. “Our prior work has shown that SLAH will not cause naming or object recognition deficits, while such deficits will result in a substantial proportion of patients undergoing open resection procedures,” said Dr. Drane. “Declarative memory can seemingly be hurt by either procedure, although it would appear that rates of decline are substantially less following SLAH. As functional status appears to be related to cognitive outcome, SLAH would always be the better choice from the standpoint of risk analysis, particularly since one can almost always go back an complete an open resection at a later date.
“Seizure freedom rates appear to be slightly higher with open resection than with SLAH,” Dr. Drane continued. “This [result] would be the one factor that would represent the one reason to opt for an open resection rather than SLAH. Factors that might push one in this direction could be risk for SUDEP (i.e., someone at very high risk may want to just be done with the seizures) and impaired baseline cognitive functioning (i.e., someone with severely impaired cognitive functioning might be viewed as having less to lose). In the latter case, however, we would caution that low-functioning individuals can sometimes lose their remaining functional abilities even if we cannot do a very good job of measuring cognitive change in such cases due to their poor baseline performance.”
The hemisphere to undergo operation also may influence the choice of procedure. “Some epileptologists will suggest that the choice of using SLAH is more important for patients having surgery involving their language-dominant cerebral hemisphere,” said Dr. Drane. “While postsurgical deficits in these patients are clearly more easy to identify, I would argue that a case can be made for starting with SLAH in the nondominant temporal lobe cases as well. Many of the functions that can be potentially harmed by surgical procedures involving the nondominant (typically right) hemisphere have more subtle effects, but their cumulative impact can yet be harmful.”
The study was partially supported by funding from the National Institutes of Health and Medtronic. The investigators did not report any conflicts of interest.
SOURCE: Drane DL et al. AES 2019. Abstract 1.34.
BALTIMORE – , according to data presented at the annual meeting of the American Epilepsy Society. In addition, improvements in functional status are strongly associated with improvements in global cognitive performance.
Previous data have indicated that SLAH results in superior cognitive outcomes, compared with selective and standard open resection, in the treatment of medial temporal lobe epilepsy. The rates of seizure freedom following these procedures are equivalent. Daniel Drane, PhD, associate professor of neurology at Emory University in Atlanta, and colleagues hypothesized that the preservation of cognitive skills following SLAH would be apparent in real-world settings. To test this hypothesis, they investigated changes in functional status following SLAH.
Functional status correlated with neurocognitive change
Dr. Drane and colleagues compared functional outcomes in 53 patients who underwent SLAH at the Emory University Epilepsy Center and 20 patients who underwent open resection at the same center. The investigators created a hierarchical classification of functional status using the following criteria (from best to worst): employed and independent with all activities of daily living (ADLs), unemployed and independent with all ADLs, unemployed and independent with lower ADLs only (i.e., independent with self-care, but not with management of finances, medications, etc.), and unemployed and unable to manage any ADLs without assistance. Dr. Drane and colleagues rated all patients on these criteria at baseline and at 1 year after surgery. They classified patients as improving, declining, or remaining stable in functional status. Finally, the investigators used Fisher’s exact test to compare the proportional ratings of change between surgical procedures.
At baseline, the proportions of patients in each functional group were similar between patients who later underwent SLAH and those who later underwent open resection. Significantly more patients who underwent SLAH, however, had functional improvement, compared with patients who underwent open resection (13.2% vs. 0%). Furthermore, fewer patients who underwent SLAH had functional decline, compared with those who underwent open resection (3.7% vs. 35%).
Dr. Drane and colleagues found a strong correlation between functional status and global ratings of neurocognitive change, but no correlation between functional status and seizure-freedom status. Patients who underwent SLAH were less likely to have a decline in employment status than were patients who underwent open resection were (4.2% vs. 45.4%).
Weighing surgical options for a given patient
“This study provides a real-world metric of meaningful change following surgery, which is, critically, independent of seizure freedom outcome,” said Dr. Drane. “If a patient becomes seizure free but declines in functional status, presumably due to compromised cognitive function, this outcome is likely not going to lead to a better quality of life. Overall, our data suggest that functional status is driven more by cognitive outcome than by seizure freedom, and that it is an equally important metric for determining whether or not surgery has been successful. We would hope that the epilepsy surgical team would try to balance the desire to achieve seizure freedom against the potential risks and benefits of surgery on cognitive performance and functional status.”
Neurologists must consider various factors when deciding whether open resection or SLAH is the better option for a given patient. “Our prior work has shown that SLAH will not cause naming or object recognition deficits, while such deficits will result in a substantial proportion of patients undergoing open resection procedures,” said Dr. Drane. “Declarative memory can seemingly be hurt by either procedure, although it would appear that rates of decline are substantially less following SLAH. As functional status appears to be related to cognitive outcome, SLAH would always be the better choice from the standpoint of risk analysis, particularly since one can almost always go back an complete an open resection at a later date.
“Seizure freedom rates appear to be slightly higher with open resection than with SLAH,” Dr. Drane continued. “This [result] would be the one factor that would represent the one reason to opt for an open resection rather than SLAH. Factors that might push one in this direction could be risk for SUDEP (i.e., someone at very high risk may want to just be done with the seizures) and impaired baseline cognitive functioning (i.e., someone with severely impaired cognitive functioning might be viewed as having less to lose). In the latter case, however, we would caution that low-functioning individuals can sometimes lose their remaining functional abilities even if we cannot do a very good job of measuring cognitive change in such cases due to their poor baseline performance.”
The hemisphere to undergo operation also may influence the choice of procedure. “Some epileptologists will suggest that the choice of using SLAH is more important for patients having surgery involving their language-dominant cerebral hemisphere,” said Dr. Drane. “While postsurgical deficits in these patients are clearly more easy to identify, I would argue that a case can be made for starting with SLAH in the nondominant temporal lobe cases as well. Many of the functions that can be potentially harmed by surgical procedures involving the nondominant (typically right) hemisphere have more subtle effects, but their cumulative impact can yet be harmful.”
The study was partially supported by funding from the National Institutes of Health and Medtronic. The investigators did not report any conflicts of interest.
SOURCE: Drane DL et al. AES 2019. Abstract 1.34.
REPORTING FROM AES 2019
EEG abnormalities may indicate increased risk for epilepsy in patients with autism
BALTIMORE – , according to research presented at the annual meeting of the American Epilepsy Society. In addition, a positive family history of febrile seizures also is associated with an increased risk of epilepsy in this population.
The literature suggests that the prevalence of epilepsy in patients with ASD ranges from 5% to 40%. This broad range may result from the heterogeneity of epilepsy risk factors among patients with ASD. These risk factors include intellectual disability, age, and syndromic forms of ASD such as tuberous sclerosis complex. Regardless of whether they have epilepsy, approximately 60% of patients with ASD have EEG abnormalities. The prognostic implications of these abnormalities are uncertain.
Investigators reviewed patients’ charts retrospectively
Divya Nadkarni, MD, a neurologist at Ronald Reagan UCLA Medical Center in Los Angeles, and colleagues sought to clarify the relationship between risk factors such as EEG abnormalities and subsequent epilepsy in patients with ASD. They retrospectively identified patients who were followed jointly at UCLA and at Pediatric Minds, a neurodevelopmental clinic in Torrance, Calif. Eligible patients had a diagnosis of ASD, based on criteria from DSM-IV, DSM-5, or the Autism Diagnostic Observation Schedule. In addition, patients had overnight, continuous video EEG evaluation and a minimum follow-up of 1 week after EEG. Patients with a history of epilepsy before the initial EEG evaluation were excluded. Dr. Nadkarni and colleagues collected clinical and electrographic data by chart review.
The study’s primary outcome was time to onset of epilepsy. Among the variables that the investigators analyzed were EEG abnormalities, which they defined as focal slowing or generalized or focal epileptiform discharges. The other variables were history of febrile seizures, family history of epilepsy, family history of febrile seizures, and family history of ASD. Dr. Nadkarni and colleagues analyzed the data using the Kaplan–Meier method and Cox proportional hazards models.
In all, 164 patients met the study’s inclusion criteria. The population’s median age at the initial EEG evaluation was 4.5 years. The median follow-up after this evaluation was 2.4 years. The investigators found 63 patients (38.4%) with abnormal EEGs, and 18 patients (11%) subsequently developed epilepsy after a median of 1.9 years.
Family history of febrile seizures was associated with time to epilepsy onset
The time to epilepsy onset was associated with abnormalities on the initial overnight continuous EEG. The hazard ratio of epilepsy among patients with EEG abnormalities was 8.0. Approximately one-third of patients with EEG abnormalities developed subsequent epilepsy, compared with approximately 5% of patients without EEG abnormalities, said Dr. Nadkarni.
In addition, time to epilepsy onset was independently associated with a positive family history of febrile seizures. This finding was unexpected, said Dr. Nadkarni. The hazard ratio of epilepsy among patients with a positive family history of febrile seizures was 12.6.
The patient’s own history of febrile seizures was not associated with time to epilepsy onset. One potential explanation for this result is that it is difficult to distinguish between febrile seizure and seizure with fever in the general pediatric population. Making this distinction in children with ASD, who may have atypical febrile seizures, might be still more difficult, said Dr. Nadkarni.
Time for guideline updates?
“Statements from the Centers for Disease Control and Prevention, the American Academy of Pediatrics, the American Academy of Neurology, and the Child Neurology Society do not currently recommend routine EEG screening for all children with ASD,” said Dr. Nadkarni. Investigators are suggesting that the guidelines should be reevaluated, however. “Research shows that EEG abnormalities, particularly epileptiform abnormalities, are associated with worse outcome, in terms of developmental and adaptive functioning. EEG endophenotypes in ASD are starting to be elucidated ... That’s one reason to consider EEG screening.” Furthermore, preliminary connectivity research suggests that EEG screening of high-risk siblings of children with ASD may predict the development of ASD.
The small cohort and retrospective design were among the study’s limitations, said Dr. Nadkarni. Some patients were lost to follow-up, and some data were missing from patients’ charts.
“In our opinion, further study – ideally, a prospective, observational cohort study – might be warranted to determine whether overnight continuous EEG monitoring might be useful as a screening tool for epilepsy in patients with ASD,” Dr. Nadkarni concluded.
The study was conducted without external funding, and the investigators had no disclosures.
SOURCE: Nadkarni D et al. AES 2019. Abstract 1.29.
BALTIMORE – , according to research presented at the annual meeting of the American Epilepsy Society. In addition, a positive family history of febrile seizures also is associated with an increased risk of epilepsy in this population.
The literature suggests that the prevalence of epilepsy in patients with ASD ranges from 5% to 40%. This broad range may result from the heterogeneity of epilepsy risk factors among patients with ASD. These risk factors include intellectual disability, age, and syndromic forms of ASD such as tuberous sclerosis complex. Regardless of whether they have epilepsy, approximately 60% of patients with ASD have EEG abnormalities. The prognostic implications of these abnormalities are uncertain.
Investigators reviewed patients’ charts retrospectively
Divya Nadkarni, MD, a neurologist at Ronald Reagan UCLA Medical Center in Los Angeles, and colleagues sought to clarify the relationship between risk factors such as EEG abnormalities and subsequent epilepsy in patients with ASD. They retrospectively identified patients who were followed jointly at UCLA and at Pediatric Minds, a neurodevelopmental clinic in Torrance, Calif. Eligible patients had a diagnosis of ASD, based on criteria from DSM-IV, DSM-5, or the Autism Diagnostic Observation Schedule. In addition, patients had overnight, continuous video EEG evaluation and a minimum follow-up of 1 week after EEG. Patients with a history of epilepsy before the initial EEG evaluation were excluded. Dr. Nadkarni and colleagues collected clinical and electrographic data by chart review.
The study’s primary outcome was time to onset of epilepsy. Among the variables that the investigators analyzed were EEG abnormalities, which they defined as focal slowing or generalized or focal epileptiform discharges. The other variables were history of febrile seizures, family history of epilepsy, family history of febrile seizures, and family history of ASD. Dr. Nadkarni and colleagues analyzed the data using the Kaplan–Meier method and Cox proportional hazards models.
In all, 164 patients met the study’s inclusion criteria. The population’s median age at the initial EEG evaluation was 4.5 years. The median follow-up after this evaluation was 2.4 years. The investigators found 63 patients (38.4%) with abnormal EEGs, and 18 patients (11%) subsequently developed epilepsy after a median of 1.9 years.
Family history of febrile seizures was associated with time to epilepsy onset
The time to epilepsy onset was associated with abnormalities on the initial overnight continuous EEG. The hazard ratio of epilepsy among patients with EEG abnormalities was 8.0. Approximately one-third of patients with EEG abnormalities developed subsequent epilepsy, compared with approximately 5% of patients without EEG abnormalities, said Dr. Nadkarni.
In addition, time to epilepsy onset was independently associated with a positive family history of febrile seizures. This finding was unexpected, said Dr. Nadkarni. The hazard ratio of epilepsy among patients with a positive family history of febrile seizures was 12.6.
The patient’s own history of febrile seizures was not associated with time to epilepsy onset. One potential explanation for this result is that it is difficult to distinguish between febrile seizure and seizure with fever in the general pediatric population. Making this distinction in children with ASD, who may have atypical febrile seizures, might be still more difficult, said Dr. Nadkarni.
Time for guideline updates?
“Statements from the Centers for Disease Control and Prevention, the American Academy of Pediatrics, the American Academy of Neurology, and the Child Neurology Society do not currently recommend routine EEG screening for all children with ASD,” said Dr. Nadkarni. Investigators are suggesting that the guidelines should be reevaluated, however. “Research shows that EEG abnormalities, particularly epileptiform abnormalities, are associated with worse outcome, in terms of developmental and adaptive functioning. EEG endophenotypes in ASD are starting to be elucidated ... That’s one reason to consider EEG screening.” Furthermore, preliminary connectivity research suggests that EEG screening of high-risk siblings of children with ASD may predict the development of ASD.
The small cohort and retrospective design were among the study’s limitations, said Dr. Nadkarni. Some patients were lost to follow-up, and some data were missing from patients’ charts.
“In our opinion, further study – ideally, a prospective, observational cohort study – might be warranted to determine whether overnight continuous EEG monitoring might be useful as a screening tool for epilepsy in patients with ASD,” Dr. Nadkarni concluded.
The study was conducted without external funding, and the investigators had no disclosures.
SOURCE: Nadkarni D et al. AES 2019. Abstract 1.29.
BALTIMORE – , according to research presented at the annual meeting of the American Epilepsy Society. In addition, a positive family history of febrile seizures also is associated with an increased risk of epilepsy in this population.
The literature suggests that the prevalence of epilepsy in patients with ASD ranges from 5% to 40%. This broad range may result from the heterogeneity of epilepsy risk factors among patients with ASD. These risk factors include intellectual disability, age, and syndromic forms of ASD such as tuberous sclerosis complex. Regardless of whether they have epilepsy, approximately 60% of patients with ASD have EEG abnormalities. The prognostic implications of these abnormalities are uncertain.
Investigators reviewed patients’ charts retrospectively
Divya Nadkarni, MD, a neurologist at Ronald Reagan UCLA Medical Center in Los Angeles, and colleagues sought to clarify the relationship between risk factors such as EEG abnormalities and subsequent epilepsy in patients with ASD. They retrospectively identified patients who were followed jointly at UCLA and at Pediatric Minds, a neurodevelopmental clinic in Torrance, Calif. Eligible patients had a diagnosis of ASD, based on criteria from DSM-IV, DSM-5, or the Autism Diagnostic Observation Schedule. In addition, patients had overnight, continuous video EEG evaluation and a minimum follow-up of 1 week after EEG. Patients with a history of epilepsy before the initial EEG evaluation were excluded. Dr. Nadkarni and colleagues collected clinical and electrographic data by chart review.
The study’s primary outcome was time to onset of epilepsy. Among the variables that the investigators analyzed were EEG abnormalities, which they defined as focal slowing or generalized or focal epileptiform discharges. The other variables were history of febrile seizures, family history of epilepsy, family history of febrile seizures, and family history of ASD. Dr. Nadkarni and colleagues analyzed the data using the Kaplan–Meier method and Cox proportional hazards models.
In all, 164 patients met the study’s inclusion criteria. The population’s median age at the initial EEG evaluation was 4.5 years. The median follow-up after this evaluation was 2.4 years. The investigators found 63 patients (38.4%) with abnormal EEGs, and 18 patients (11%) subsequently developed epilepsy after a median of 1.9 years.
Family history of febrile seizures was associated with time to epilepsy onset
The time to epilepsy onset was associated with abnormalities on the initial overnight continuous EEG. The hazard ratio of epilepsy among patients with EEG abnormalities was 8.0. Approximately one-third of patients with EEG abnormalities developed subsequent epilepsy, compared with approximately 5% of patients without EEG abnormalities, said Dr. Nadkarni.
In addition, time to epilepsy onset was independently associated with a positive family history of febrile seizures. This finding was unexpected, said Dr. Nadkarni. The hazard ratio of epilepsy among patients with a positive family history of febrile seizures was 12.6.
The patient’s own history of febrile seizures was not associated with time to epilepsy onset. One potential explanation for this result is that it is difficult to distinguish between febrile seizure and seizure with fever in the general pediatric population. Making this distinction in children with ASD, who may have atypical febrile seizures, might be still more difficult, said Dr. Nadkarni.
Time for guideline updates?
“Statements from the Centers for Disease Control and Prevention, the American Academy of Pediatrics, the American Academy of Neurology, and the Child Neurology Society do not currently recommend routine EEG screening for all children with ASD,” said Dr. Nadkarni. Investigators are suggesting that the guidelines should be reevaluated, however. “Research shows that EEG abnormalities, particularly epileptiform abnormalities, are associated with worse outcome, in terms of developmental and adaptive functioning. EEG endophenotypes in ASD are starting to be elucidated ... That’s one reason to consider EEG screening.” Furthermore, preliminary connectivity research suggests that EEG screening of high-risk siblings of children with ASD may predict the development of ASD.
The small cohort and retrospective design were among the study’s limitations, said Dr. Nadkarni. Some patients were lost to follow-up, and some data were missing from patients’ charts.
“In our opinion, further study – ideally, a prospective, observational cohort study – might be warranted to determine whether overnight continuous EEG monitoring might be useful as a screening tool for epilepsy in patients with ASD,” Dr. Nadkarni concluded.
The study was conducted without external funding, and the investigators had no disclosures.
SOURCE: Nadkarni D et al. AES 2019. Abstract 1.29.
REPORTING FROM AES 2019
FDA issues public health warning recommending against cesium salt usage
The Food and Drug Administration has issued a public health alert warning consumers to avoid the use of dietary supplements that contain cesium chloride or any other cesium salt because of significant safety risks.
Cesium salts are sometimes advertised as an alternative treatment for cancer, the FDA said in the announcement, but these salts have never proved to be safe or effective at treating cancer or any other disease. Clinical case reports and nonclinical trials have shown that cesium salts are associated with a variety of adverse events, including cardiac arrhythmias, hypokalemia, seizures, syncope, and death.
The FDA warned health care providers that cesium salts presented a significant safety risk in compounding drugs in July 2018.
Health care providers should not recommend dietary supplements containing cesium salts to their patients, the FDA said, and if a patient experiences an adverse event while taking a supplement containing cesium salt, the event should be reported to the agency.
While there are few dietary supplements on the market that contain cesium salt, consumers should be aware of the risks and avoid these products. The FDA noted that “if claims sound too good to be true, they probably are.”
The Food and Drug Administration has issued a public health alert warning consumers to avoid the use of dietary supplements that contain cesium chloride or any other cesium salt because of significant safety risks.
Cesium salts are sometimes advertised as an alternative treatment for cancer, the FDA said in the announcement, but these salts have never proved to be safe or effective at treating cancer or any other disease. Clinical case reports and nonclinical trials have shown that cesium salts are associated with a variety of adverse events, including cardiac arrhythmias, hypokalemia, seizures, syncope, and death.
The FDA warned health care providers that cesium salts presented a significant safety risk in compounding drugs in July 2018.
Health care providers should not recommend dietary supplements containing cesium salts to their patients, the FDA said, and if a patient experiences an adverse event while taking a supplement containing cesium salt, the event should be reported to the agency.
While there are few dietary supplements on the market that contain cesium salt, consumers should be aware of the risks and avoid these products. The FDA noted that “if claims sound too good to be true, they probably are.”
The Food and Drug Administration has issued a public health alert warning consumers to avoid the use of dietary supplements that contain cesium chloride or any other cesium salt because of significant safety risks.
Cesium salts are sometimes advertised as an alternative treatment for cancer, the FDA said in the announcement, but these salts have never proved to be safe or effective at treating cancer or any other disease. Clinical case reports and nonclinical trials have shown that cesium salts are associated with a variety of adverse events, including cardiac arrhythmias, hypokalemia, seizures, syncope, and death.
The FDA warned health care providers that cesium salts presented a significant safety risk in compounding drugs in July 2018.
Health care providers should not recommend dietary supplements containing cesium salts to their patients, the FDA said, and if a patient experiences an adverse event while taking a supplement containing cesium salt, the event should be reported to the agency.
While there are few dietary supplements on the market that contain cesium salt, consumers should be aware of the risks and avoid these products. The FDA noted that “if claims sound too good to be true, they probably are.”
Hippocampal sparing temporal lobectomy recommended for medically refractory epilepsy
BALTIMORE – according to a review from researchers at Thomas Jefferson University in Philadelphia.
Often, the hippocampus and other mesial structures are removed even if they appear normal. The concern is that even normal looking tissue could harbor epileptogenic elements and leaving them in tact could reduce postoperative seizure control, explained senior investigator and neurologist Michael Sperling, MD, director of the Jefferson Comprehensive Epilepsy Center.
He and his colleagues wanted to see if that was really true, so they compared outcomes in 21 patients who had mesial-sparing lobectomies with 19 patients who had the standard approach. Cases and controls were matched for age, preoperative seizure frequency, side of surgery, and other factors. None of the patients had MTS.
There was no significant difference in postoperative seizure recurrence between the two groups (P = .974). The standard procedure had a slight edge early on, but at 2.5 years, just over 60% of patients in both groups were seizure free. At 5 years, about 50% were seizure free, and almost 40% in both arms at 7.5 years.
About two-thirds of patients in each arm had pre- and postoperative verbal memory testing, with similar duration from surgery to postop evaluation. There was no change among the hippocampus-sparing patients, but a roughly one standard deviation drop in delayed recall and logical memory on the California Verbal Learning Test in the standard group.
Even so, it wasn’t enough to affect employment, which the investigators used as a surrogate for disability; postoperative employment was comparable in both groups. People mostly retained their jobs, and there was no difference in job loss. A few people in each arm actually found jobs after surgery.
The investigators concluded that “it is reasonable to recommend mesial temporal sparing procedure in patients with dominant neocortical temporal lobe epilepsy when the hippocampus appears normal in the MRI. However, as resecting the mesial temporal structures was not associated with a greater chance of becoming unemployed following the surgery, there appears to be no major contraindication to performing an [anterior temporal lobectomy] if clinically warranted.”
The results are reassuring. “My bias walking in was that” seizure recurrence would be worse after hippocampal-sparing surgery. “I was pleased to see that it was about the same. If you want to try to preserve verbal memory and the MRI is normal, you can get away with sparing the mesial temporal structures, and still get a good seizure outcome,” Dr. Sperling said at the annual meeting of the American Epilepsy Society, where the study was presented.
“But if you have to take the hippocampus for whatever reason, the functional consequence of a decline in verbal memory is not severe enough as to be disabling,” which is “one of the big concerns” with temporal lobectomy, he said.
The findings “will make us more likely to recommend mesial-sparing surgery, but at the same time” perhaps not be quite as worried about disability with the standard approach.
Temporal lobe epilepsy with normal mesial structures isn’t very common, which explains the small numbers in the series. It’s possible subtle difference in seizure control and employment outcomes would have been found with a larger series, “but obviously there were no major differences. I think the fundamental questions have been answered to my satisfaction,” Dr. Sperling said.
Overall, “it’s better to operate and try to cure people than to worry that you will make their memory worse when the consequences of having uncontrolled epilepsy is a higher death rate,” he said.
There were about equal numbers of men and women in the review; patients were in their early 30s, on average; and most had left-sided surgery. Just over half in each arm had preoperative tonic-clonic seizures. The mean duration of epilepsy was 14.9 years in the mesial-sparing group, and 8.6 years in the standard arm.
There was no funding for the review, and Dr. Sperling didn’t have any relevant disclosures.
SOURCE: Goldstein L et al. AES 2019. Abstract 1.339.
BALTIMORE – according to a review from researchers at Thomas Jefferson University in Philadelphia.
Often, the hippocampus and other mesial structures are removed even if they appear normal. The concern is that even normal looking tissue could harbor epileptogenic elements and leaving them in tact could reduce postoperative seizure control, explained senior investigator and neurologist Michael Sperling, MD, director of the Jefferson Comprehensive Epilepsy Center.
He and his colleagues wanted to see if that was really true, so they compared outcomes in 21 patients who had mesial-sparing lobectomies with 19 patients who had the standard approach. Cases and controls were matched for age, preoperative seizure frequency, side of surgery, and other factors. None of the patients had MTS.
There was no significant difference in postoperative seizure recurrence between the two groups (P = .974). The standard procedure had a slight edge early on, but at 2.5 years, just over 60% of patients in both groups were seizure free. At 5 years, about 50% were seizure free, and almost 40% in both arms at 7.5 years.
About two-thirds of patients in each arm had pre- and postoperative verbal memory testing, with similar duration from surgery to postop evaluation. There was no change among the hippocampus-sparing patients, but a roughly one standard deviation drop in delayed recall and logical memory on the California Verbal Learning Test in the standard group.
Even so, it wasn’t enough to affect employment, which the investigators used as a surrogate for disability; postoperative employment was comparable in both groups. People mostly retained their jobs, and there was no difference in job loss. A few people in each arm actually found jobs after surgery.
The investigators concluded that “it is reasonable to recommend mesial temporal sparing procedure in patients with dominant neocortical temporal lobe epilepsy when the hippocampus appears normal in the MRI. However, as resecting the mesial temporal structures was not associated with a greater chance of becoming unemployed following the surgery, there appears to be no major contraindication to performing an [anterior temporal lobectomy] if clinically warranted.”
The results are reassuring. “My bias walking in was that” seizure recurrence would be worse after hippocampal-sparing surgery. “I was pleased to see that it was about the same. If you want to try to preserve verbal memory and the MRI is normal, you can get away with sparing the mesial temporal structures, and still get a good seizure outcome,” Dr. Sperling said at the annual meeting of the American Epilepsy Society, where the study was presented.
“But if you have to take the hippocampus for whatever reason, the functional consequence of a decline in verbal memory is not severe enough as to be disabling,” which is “one of the big concerns” with temporal lobectomy, he said.
The findings “will make us more likely to recommend mesial-sparing surgery, but at the same time” perhaps not be quite as worried about disability with the standard approach.
Temporal lobe epilepsy with normal mesial structures isn’t very common, which explains the small numbers in the series. It’s possible subtle difference in seizure control and employment outcomes would have been found with a larger series, “but obviously there were no major differences. I think the fundamental questions have been answered to my satisfaction,” Dr. Sperling said.
Overall, “it’s better to operate and try to cure people than to worry that you will make their memory worse when the consequences of having uncontrolled epilepsy is a higher death rate,” he said.
There were about equal numbers of men and women in the review; patients were in their early 30s, on average; and most had left-sided surgery. Just over half in each arm had preoperative tonic-clonic seizures. The mean duration of epilepsy was 14.9 years in the mesial-sparing group, and 8.6 years in the standard arm.
There was no funding for the review, and Dr. Sperling didn’t have any relevant disclosures.
SOURCE: Goldstein L et al. AES 2019. Abstract 1.339.
BALTIMORE – according to a review from researchers at Thomas Jefferson University in Philadelphia.
Often, the hippocampus and other mesial structures are removed even if they appear normal. The concern is that even normal looking tissue could harbor epileptogenic elements and leaving them in tact could reduce postoperative seizure control, explained senior investigator and neurologist Michael Sperling, MD, director of the Jefferson Comprehensive Epilepsy Center.
He and his colleagues wanted to see if that was really true, so they compared outcomes in 21 patients who had mesial-sparing lobectomies with 19 patients who had the standard approach. Cases and controls were matched for age, preoperative seizure frequency, side of surgery, and other factors. None of the patients had MTS.
There was no significant difference in postoperative seizure recurrence between the two groups (P = .974). The standard procedure had a slight edge early on, but at 2.5 years, just over 60% of patients in both groups were seizure free. At 5 years, about 50% were seizure free, and almost 40% in both arms at 7.5 years.
About two-thirds of patients in each arm had pre- and postoperative verbal memory testing, with similar duration from surgery to postop evaluation. There was no change among the hippocampus-sparing patients, but a roughly one standard deviation drop in delayed recall and logical memory on the California Verbal Learning Test in the standard group.
Even so, it wasn’t enough to affect employment, which the investigators used as a surrogate for disability; postoperative employment was comparable in both groups. People mostly retained their jobs, and there was no difference in job loss. A few people in each arm actually found jobs after surgery.
The investigators concluded that “it is reasonable to recommend mesial temporal sparing procedure in patients with dominant neocortical temporal lobe epilepsy when the hippocampus appears normal in the MRI. However, as resecting the mesial temporal structures was not associated with a greater chance of becoming unemployed following the surgery, there appears to be no major contraindication to performing an [anterior temporal lobectomy] if clinically warranted.”
The results are reassuring. “My bias walking in was that” seizure recurrence would be worse after hippocampal-sparing surgery. “I was pleased to see that it was about the same. If you want to try to preserve verbal memory and the MRI is normal, you can get away with sparing the mesial temporal structures, and still get a good seizure outcome,” Dr. Sperling said at the annual meeting of the American Epilepsy Society, where the study was presented.
“But if you have to take the hippocampus for whatever reason, the functional consequence of a decline in verbal memory is not severe enough as to be disabling,” which is “one of the big concerns” with temporal lobectomy, he said.
The findings “will make us more likely to recommend mesial-sparing surgery, but at the same time” perhaps not be quite as worried about disability with the standard approach.
Temporal lobe epilepsy with normal mesial structures isn’t very common, which explains the small numbers in the series. It’s possible subtle difference in seizure control and employment outcomes would have been found with a larger series, “but obviously there were no major differences. I think the fundamental questions have been answered to my satisfaction,” Dr. Sperling said.
Overall, “it’s better to operate and try to cure people than to worry that you will make their memory worse when the consequences of having uncontrolled epilepsy is a higher death rate,” he said.
There were about equal numbers of men and women in the review; patients were in their early 30s, on average; and most had left-sided surgery. Just over half in each arm had preoperative tonic-clonic seizures. The mean duration of epilepsy was 14.9 years in the mesial-sparing group, and 8.6 years in the standard arm.
There was no funding for the review, and Dr. Sperling didn’t have any relevant disclosures.
SOURCE: Goldstein L et al. AES 2019. Abstract 1.339.
REPORTING FROM AES 2019
Should a normal-appearing hippocampus be resected in a patient with temporal lobe epilepsy?
BALTIMORE – according to an analysis presented at the annual meeting of the American Epilepsy Society. Long-term seizure outcomes, however, are similar between resected and nonresected patients. In addition, sparing a normal-appearing hippocampus is correlated with a lower risk of verbal deficits, but long-term outcomes are unclear.
Neurologists have not arrived at a consensus about the best surgical management of patients with temporal lobe epilepsy and a hippocampus that appears normal on MRI. Few studies have examined seizure and neuropsychologic outcomes in this population, and this scarcity of data makes counseling patients difficult.
A review of data for surgical patients
To investigate this question, Marcia E. Morita-Sherman, MD, from the Cleveland Clinic, and colleagues retrospectively reviewed data for 152 patients who underwent surgery for temporal lobe epilepsy at the Cleveland Clinic during 2010-2018. Eligible participants were older than 16 years, and the researchers excluded patients with MRI or pathologic signs of hippocampal sclerosis and those with prior surgeries from the analysis.
To examine neuropsychological outcomes, Dr. Morita-Sherman and colleagues compared measures of verbal memory, visual memory, and confrontation naming that had been obtained before surgery and at 6 months after surgery. They measured hippocampal volume using Neuroquant. They categorized resections as dominant or nondominant according to patients’ handedness or language lateralization. The investigators classified 74 patients as having a spared hippocampus and 78 patients as having a resected hippocampus. They classified neuropsychological outcomes as showing decline or no decline using epilepsy-specific reliable change indexes.
Type of surgery affected memory and naming
Approximately 40% of patients had seizure recurrence within 1 year after surgery, and 63% had seizure recurrence within 6 years after surgery. The rate of invasive EEG was similar between patients with a spared hippocampus (50%) and those with a resected hippocampus (47%). In a univariate analysis, male sex, longer epilepsy duration, normal MRI, history of invasive evaluation, and acute postoperative seizures were associated with a higher risk of seizure recurrence. Patients with a spared hippocampus had a higher risk of early seizure recurrence, compared with patients with a resected hippocampus, but the difference was not statistically significant. Long-term seizure outcomes were similar between the two groups.
Neuropsychological outcomes were available for 86 patients. Among 56 patients who underwent surgery on the dominant side, those with spared-hippocampal surgery, compared with those with resected-hippocampal surgery, had lower rates of clinically meaningful declines in verbal memory (39.7% vs. 70.4%) and naming (40.7% vs. 79.2%). The investigators found no significant difference in the 30 patients with nondominant surgeries.
“Sparing the hippocampus in a tailored temporal lobe resection doesn’t necessarily prevent any memory decline. Close to 40% of our patients where the hippocampus was spared had a clinically significant memory loss,” said Lara E. Jehi, MD, an epileptologist at the Cleveland Clinic and one of the investigators. “Including the hippocampus in the resection seems to correlate with better odds of seizure freedom, at least in the short term. We need more research to study the long-term memory and naming implications of hippocampal sparing versus resection.”
The study was funded by a grant from the National Institutes of Health. The investigators reported no conflicts of interest. [email protected]
SOURCE: Morita-Sherman ME et al. AES 2019, Abstract 1.336.
BALTIMORE – according to an analysis presented at the annual meeting of the American Epilepsy Society. Long-term seizure outcomes, however, are similar between resected and nonresected patients. In addition, sparing a normal-appearing hippocampus is correlated with a lower risk of verbal deficits, but long-term outcomes are unclear.
Neurologists have not arrived at a consensus about the best surgical management of patients with temporal lobe epilepsy and a hippocampus that appears normal on MRI. Few studies have examined seizure and neuropsychologic outcomes in this population, and this scarcity of data makes counseling patients difficult.
A review of data for surgical patients
To investigate this question, Marcia E. Morita-Sherman, MD, from the Cleveland Clinic, and colleagues retrospectively reviewed data for 152 patients who underwent surgery for temporal lobe epilepsy at the Cleveland Clinic during 2010-2018. Eligible participants were older than 16 years, and the researchers excluded patients with MRI or pathologic signs of hippocampal sclerosis and those with prior surgeries from the analysis.
To examine neuropsychological outcomes, Dr. Morita-Sherman and colleagues compared measures of verbal memory, visual memory, and confrontation naming that had been obtained before surgery and at 6 months after surgery. They measured hippocampal volume using Neuroquant. They categorized resections as dominant or nondominant according to patients’ handedness or language lateralization. The investigators classified 74 patients as having a spared hippocampus and 78 patients as having a resected hippocampus. They classified neuropsychological outcomes as showing decline or no decline using epilepsy-specific reliable change indexes.
Type of surgery affected memory and naming
Approximately 40% of patients had seizure recurrence within 1 year after surgery, and 63% had seizure recurrence within 6 years after surgery. The rate of invasive EEG was similar between patients with a spared hippocampus (50%) and those with a resected hippocampus (47%). In a univariate analysis, male sex, longer epilepsy duration, normal MRI, history of invasive evaluation, and acute postoperative seizures were associated with a higher risk of seizure recurrence. Patients with a spared hippocampus had a higher risk of early seizure recurrence, compared with patients with a resected hippocampus, but the difference was not statistically significant. Long-term seizure outcomes were similar between the two groups.
Neuropsychological outcomes were available for 86 patients. Among 56 patients who underwent surgery on the dominant side, those with spared-hippocampal surgery, compared with those with resected-hippocampal surgery, had lower rates of clinically meaningful declines in verbal memory (39.7% vs. 70.4%) and naming (40.7% vs. 79.2%). The investigators found no significant difference in the 30 patients with nondominant surgeries.
“Sparing the hippocampus in a tailored temporal lobe resection doesn’t necessarily prevent any memory decline. Close to 40% of our patients where the hippocampus was spared had a clinically significant memory loss,” said Lara E. Jehi, MD, an epileptologist at the Cleveland Clinic and one of the investigators. “Including the hippocampus in the resection seems to correlate with better odds of seizure freedom, at least in the short term. We need more research to study the long-term memory and naming implications of hippocampal sparing versus resection.”
The study was funded by a grant from the National Institutes of Health. The investigators reported no conflicts of interest. [email protected]
SOURCE: Morita-Sherman ME et al. AES 2019, Abstract 1.336.
BALTIMORE – according to an analysis presented at the annual meeting of the American Epilepsy Society. Long-term seizure outcomes, however, are similar between resected and nonresected patients. In addition, sparing a normal-appearing hippocampus is correlated with a lower risk of verbal deficits, but long-term outcomes are unclear.
Neurologists have not arrived at a consensus about the best surgical management of patients with temporal lobe epilepsy and a hippocampus that appears normal on MRI. Few studies have examined seizure and neuropsychologic outcomes in this population, and this scarcity of data makes counseling patients difficult.
A review of data for surgical patients
To investigate this question, Marcia E. Morita-Sherman, MD, from the Cleveland Clinic, and colleagues retrospectively reviewed data for 152 patients who underwent surgery for temporal lobe epilepsy at the Cleveland Clinic during 2010-2018. Eligible participants were older than 16 years, and the researchers excluded patients with MRI or pathologic signs of hippocampal sclerosis and those with prior surgeries from the analysis.
To examine neuropsychological outcomes, Dr. Morita-Sherman and colleagues compared measures of verbal memory, visual memory, and confrontation naming that had been obtained before surgery and at 6 months after surgery. They measured hippocampal volume using Neuroquant. They categorized resections as dominant or nondominant according to patients’ handedness or language lateralization. The investigators classified 74 patients as having a spared hippocampus and 78 patients as having a resected hippocampus. They classified neuropsychological outcomes as showing decline or no decline using epilepsy-specific reliable change indexes.
Type of surgery affected memory and naming
Approximately 40% of patients had seizure recurrence within 1 year after surgery, and 63% had seizure recurrence within 6 years after surgery. The rate of invasive EEG was similar between patients with a spared hippocampus (50%) and those with a resected hippocampus (47%). In a univariate analysis, male sex, longer epilepsy duration, normal MRI, history of invasive evaluation, and acute postoperative seizures were associated with a higher risk of seizure recurrence. Patients with a spared hippocampus had a higher risk of early seizure recurrence, compared with patients with a resected hippocampus, but the difference was not statistically significant. Long-term seizure outcomes were similar between the two groups.
Neuropsychological outcomes were available for 86 patients. Among 56 patients who underwent surgery on the dominant side, those with spared-hippocampal surgery, compared with those with resected-hippocampal surgery, had lower rates of clinically meaningful declines in verbal memory (39.7% vs. 70.4%) and naming (40.7% vs. 79.2%). The investigators found no significant difference in the 30 patients with nondominant surgeries.
“Sparing the hippocampus in a tailored temporal lobe resection doesn’t necessarily prevent any memory decline. Close to 40% of our patients where the hippocampus was spared had a clinically significant memory loss,” said Lara E. Jehi, MD, an epileptologist at the Cleveland Clinic and one of the investigators. “Including the hippocampus in the resection seems to correlate with better odds of seizure freedom, at least in the short term. We need more research to study the long-term memory and naming implications of hippocampal sparing versus resection.”
The study was funded by a grant from the National Institutes of Health. The investigators reported no conflicts of interest. [email protected]
SOURCE: Morita-Sherman ME et al. AES 2019, Abstract 1.336.
REPORTING FROM AES 2019