Minor/Major Congenital Malformations and Neurodevelopmental Outcomes in Children Prenatally Exposed to Levetiracetam, Lamotrigine, and Carbamazepine Monotherapy.

OBJECTIVES: The relationship of older antiseizure drugs with congenital malformations has been known for many years. Studies are mostly limited to major malformations and few studies have investigated minor malformations. In recent years, the long-term cognitive and behavioral effects of these drugs have also come to the fore. The aim of our study was to evaluate the incidence of major and minor congenital malformations and neurodevelopmental outcomes in children prenatally exposed to levetiracetam (LEV), lamotrigine (LTG), and carbamazepine (CBZ) monotherapy. METHODS: This was a prospective observational study conducted in two university hospital epilepsy centers. It included 32 pregnant women who were continuously treated with LEV, LTG, or CBZ from conception throughout pregnancy. Children were followed up from birth until 18 months. Neurodevelopmental outcomes were evaluated with the Ages and Stages Questionnaire and Denver Developmental Screening Test. RESULTS: Eighteen of the patients were on LEV, 10 were on LTG, and 4 were on CBZ. Diaphragmatic hernia was detected in a child. At least one minor anomaly was observed in 58.1% of the patients. More than 80% of children were normal in the Ages and Stages Questionnaire. CONCLUSIONS: The risk of major congenital malformations is lower with newer antiseizure drugs. We found a high incidence of minor ones. However, because the population prevalence of minor malformations is also variable, more studies are needed to confirm the results. Neurodevelopmental outcomes were favorable with LTG and LEV and slightly unfavorable with CBZ. Longer-term follow-up with large groups of children is required to reach more reliable results.

Seizures in inflammatory demyelinating disorders of the central nervous system.

BACKGROUND: Multiple sclerosis (MS), neuromyelitis optica spectrum disorder (NMOSD), and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) may be associated with acute symptomatic seizures and chronic epilepsy as well. The clinical features of the seizures and/or accompanying epilepsy seen in each disease group may vary. In this study, we aimed to contribute to the existing literature by describing the clinical features of seizures and epilepsy in our demyelinating patient population. METHODS: We retrospectively analyzed patients who were followed up in our tertiary referral center neurology demyelinating diseases outpatient clinic between 2019 and 2024. Patients who had at least one seizure before, simultaneously, or after the diagnosis of demyelinating disease were included in the study. RESULTS: Among 1735 patients with MS, 40 had experienced at least one epileptic seizure (2.3 %). Thirty patients (1.7 %) had seizures that could not be explained by another factor than MS. When secondary progressive MS (SPMS) and relapsing-remitting MS (RRMS) were compared, the interval between MS-epilepsy diagnosis was longer and seizure recurrence was more in SPMS. However, the prognosis of epilepsy was good in both subtypes. There were 21 patients followed up with antibody-positive neuromyelitis optica spectrum disorder. No patient had a seizure during the follow-up. We identified 56 patients who fulfilled the criteria for MOGAD with high antibody titers. Seizures were observed in three of them (5.4 %). All of them had status epilepticus either at the onset or during the course of the disease. CONCLUSION: Even rare, seizures constitute one of the important clinical features of the inflammatory demyelinating disorders of the central nervous system. The pathophysiologic mechanism underlying seizures in MS is still not clear. Seizures may occur through different mechanisms in patients where seizures are the initial symptom or a sign of relapse and those that occur spontaneously during the progressive course of the disease. Prevalence of status epilepticus was common in MOGAD patients. Given the rarity of the seizures in CNS demyelinating disorders, it is difficult the define clinical and pathophysiological characteristics of accompanying seizures and epilepsy. Future studies conducted on large patient groups will contribute to the existing literature.

Guillain Barre Syndrome following delivery in a pregnant woman infected with SARS-CoV-2.

Effects of SARS-CoV-2 on the neurological system have been investigated. Evidence of Guillain-Barre Syndrome (GBS) cases associated with SARS-CoV-2 infection have recently been reported. A 34-year-old multiparous woman with COVID-19 infection at her 37th (4/7) gestational week was presented here. She was diagnosed with Guillain Barre Syndrome at postpartum. As we know recently this was the first case mentioned in the literature. The clinical course of GBS with COVID-19 after childbirth may be similar to GBS patients not infected with COVID-19.