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Updated: Jun 28, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
The behavioral consequences of exposure to antiepileptic drugs in utero
J Vinten1, R L Bromley, J Taylor
1Department of Clinical Psychology, Royal Liverpool Children's Hospital Alder Hey, Liverpool, UK.
Insights
Children exposed to sodium valproate (VPA) during pregnancy showed increased maladaptive behaviors and lower daily living and socialization skills. Full Scale IQ (FSIQ) influenced outcomes, but VPA exposure and lower FSIQ are identified risk factors.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- Epilepsy in mothers can necessitate medication during pregnancy.
- Sodium valproate (VPA) is a commonly prescribed antiepileptic drug.
- Understanding prenatal VPA exposure effects on child development is crucial.
Purpose of the Study:
- To investigate the behavioral outcomes in children exposed to sodium valproate (VPA) in utero.
- To assess daily living skills and socialization in this cohort.
- To explore the relationship between VPA exposure, Full Scale IQ (FSIQ), and behavioral development.
Main Methods:
- Study included 242 children (aged 6-16) born to mothers with epilepsy.
- Behavioral assessments focused on maladaptive behaviors, daily living skills, and socialization.
- Statistical analysis considered the influence of child's Full Scale IQ (FSIQ).
Main Results:
- Children exposed to VPA in utero exhibited higher levels of maladaptive behavior, leading to parental stress.
- These children demonstrated poorer performance in daily living skills and socialization.
- While Full Scale IQ (FSIQ) significantly impacted outcomes, it did not fully explain the observed differences.
Conclusions:
- Prenatal exposure to sodium valproate (VPA) is associated with impaired adaptive behavior and increased maladaptive behaviors in children.
- Lowered Full Scale IQ (FSIQ) and VPA exposure are identified as independent risk factors.
- These findings highlight the need for careful consideration of VPA use during pregnancy and potential developmental monitoring.
Abstract:
The aim of the study was to examine the behavior of 242 children, aged between 6 and 16 years, born to mothers with epilepsy. Exposure to sodium valproate (VPA) in utero was associated with high levels of parental stress induced by the child's maladaptive behavior. These children were also poorer for daily living skills and skills relating to socialization. The outcomes on both measures were strongly affected by the Full Scale IQ (FSIQ) of the child; however, no significant differences were found between the groups and therefore this pattern of results cannot simply be attributed to a lower FSIQ. The results of this study suggest that exposure to VPA in utero and the presence of a lowered FSIQ are risk factors for the development of poorer adaptive behavior and a higher rate of maladaptive behaviors.
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