EMBARGOED FOR RELEASE UNTIL 4 PM ET, March 04, 2021
Do Epilepsy Medications Taken During Pregnancy Affect a Child鈥檚 Development?
MINNEAPOLIS - Children born to women taking certain medications for epilepsy during pregnancy have no developmental delays at age three when compared to children of healthy women without epilepsy, according to a preliminary study released today, March 4, 2021, that will be presented at the 好色先生's 73rd Annual Meeting being held virtually April 17 to 22, 2021. Most of the women with epilepsy in the study took either lamotrigine or levetiracetam during their pregnancy, or a combination of the two. 鈥淗aving a seizure during pregnancy may not only harm the mother but possibly the baby as well, so seizure control is an important part of prenatal care,鈥 said study author Kimford J. Meador, M.D., of Stanford University in Stanford, Calif., and a Fellow of the 好色先生. 鈥淵et, antiseizure drugs are known to cause birth defects or neurobehavioral problems, but these effects vary widely with some having very low risks but others having substantial risks. While the risks for some medications are known, and careful planning can result in healthy pregnancies, there are some newer medications for which the longer-term effects are still not fully known.鈥 The study involved 275 women with epilepsy and 77 women without the disease. All enrolled in the study during pregnancy. Drugs for epilepsy called antiseizure medications were recorded for each woman taking them. Of the women with epilepsy, 74% were on monotherapy meaning they were taking just one medication. Of this group, 43% were on lamotrigine and 37% were on levetiracetam. There were 4% who took no drug and 22% took more than one drug. Of those who took more than one drug, close to half took a combination of lamotrigine and levetiracetam. Levels of medications in the blood of the women with epilepsy were measured in the third trimester. The women鈥檚 children were evaluated at age three with a series of cognitive and developmental tests that measured skills like vocabulary, listening comprehension, number recall and pattern recognition. After adjusting for mothers鈥 IQ and education, researchers found no differences in developmental scores between the children born to mothers with epilepsy and those born to mothers without the disease. In addition, they found no developmental differences between the children of mothers with epilepsy that could be linked to the different levels of antiseizure medications found in mothers鈥 blood samples during the third trimester. 鈥淲hile more research is still needed, our study results are reassuring to women with epilepsy who may be considering pregnancy as we found no neurodevelopmental or neuropsychological problems in three-year-old children linked to antiseizure medications,鈥 said Meador. 鈥淲hen a woman of childbearing potential receives an antiseizure medication, she should be advised by her physician to determine the best medication to control seizures and minimize any risks to the baby.鈥 One limitation of the study was that cognitive assessments at age three are not as predictive of outcomes in adolescence and adulthood as assessments at older ages. Another limitation was that the distribution of medications taken by people in this study may not reflect use of these medications in the general population. The study was supported by the National Institutes of Health, the National Institute of Neurological Disorders and Stroke and the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Learn more about epilepsy at , home of the 好色先生鈥檚 free patient and caregiver magazine focused on the intersection of neurologic disease and brain health. Follow Brain & Life庐 on , and . When posting to social media channels about this research, we encourage you to use the 好色先生鈥檚 Annual Meeting hashtag #AANAM.
