Developmental and Behavioral Consequences of Intrauterine Anti-Seizure Medication Exposure.

Introduction: In this cross-sectional study, whether there is a difference in the prevalence of developmental/behavioral problems in children of those who received mono/polytherapy during pregnancy; How Valproic Acid (VPA) exposure affects developmental/behavioral characteristics compared to other antiseizure medications (ASM) was also investigated. Method: 64 children of 46 women with epilepsy (WWE) with children aged 0-18 years were included. Ankara Development and Screening Inventory (ADSI) for their children up to the age of six and The Child Behavior Checklist for Ages 4-18-CBCL/4-18 scale was applied for the ages of 6-18. Children exposed to prenatal ASM were divided into two groups as polytherapy and monotherapy. Children exposed to monotherapy were investigated by drug exposure, as well as exposure to VPA and other ASMs. Chi-square test was used to compare qualitative variables. Results: When monotherapy and polytherapy groups were compared, a significant difference was found in the language cognitive development area of the ADSI (p=0.015) and in terms of the sports activity variable in CBCL/4-18 (p=0.039). When the VPA monotherapy and other ASM monotherapy groups were compared, a significant difference was found in terms of sports activity in CBCL-4-18 (p=0.013). Conclusion: It was found that language and cognitive development can be delayed, the level of engagement in sports activities can be reduced in children exposed to polytherapy. The rate of doing sports activities in valproic acid monotherapy exposure may decrease.

Permanent Impairment of Language Functions in an Adolescent Case of Autoimmune Encephalitis.

Introduction: In pediatric and adolescent population, autoimmune encephalitis (AE) may present with a wide variety of symptoms including cognitive regression accompanied with loss of language skills. Despite its high prevalence in AE, linguistic functions have not been investigated in extensive detail. Case: A 12-year-old girl with no significant premorbid history and normal school performance presented with fever, hypersomnia, nocturnal myoclonus and behavioral changes. Although neurological examination was normal, psychiatric evaluation revealed euphoria, mild irritability and visual hallucinations. Cranial MRI was normal, whereas cerebrospinal fluid (CSF) analysis showed elevated protein concentration and lymphocyte count, electroencephalogram (EEG) showed diffuse slow waves. A panel for anti-neuronal antibodies demonstrated glutamic acid decarboxylase (GAD) antibodies in the serum. Following immunotherapy, all neurological and behavioral symptoms vanished. However, the patient suffered from significant worsening of school performance. Psychiatric evaluation revealed severe depression. Assessment of intelligence done on the 10th and 18th month of follow-up yielded significantly low scores at mental retardation level. Linguistic assessment showed significant impairment in all domains but especially in semantics. Conclusion: Our case emphasizes the fact that AE may cause permanent cognitive dysfunction and language impairment even in patients with normal MRI/neurological examination findings and relatively mild treatment-responsive disease course.

Glial fibrillary acidic protein (GFAP)-antibody in children with focal seizures of undetermined cause.

Anti-neuronal antibodies that are related with autoimmune encephalitis syndromes may also be found in children with new onset seizures or chronic epilepsy. To unravel the significance of autoimmune astrocytopathy in epilepsy, we investigated serum antibody to glial fibrillary acidic protein (GFAP), another autoantigen described in autoimmune encephalitis with seizures, in 38 children with focal seizures of undetermined cause. GFAP antibody was screened with cell based assay and indirect immunohistochemistry and was found in two boys with normal brain MRI and unrevealing medical history prior to seizures. The 2-year-old boy had chronic treatment-resistant frontal lobe epilepsy. The 2.5-year-old boy had a single episode of focal seizures and remained seizure free thereafter in a follow-up period of 4 years. Nevertheless, he showed severe cognitive and language impairment. These results suggest that autoimmune astrocytopathy may be present in some epilepsy patients. Whether this immune response is a bystander effect generated by seizure-induced astrocytosis or directly involved in epileptogenesis needs to be further studied.