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Neonates with seizures: what predicts development?
Michael J Painter1, Qing Sun, Mark S Scher
1Childrens Hospital of Pittsburgh, Pittsburgh, PA 15213, USA. michael.painter@chp.edu
Insights
Neonatal seizures can harm brain development. Mild to moderate seizure severity before treatment predicted better outcomes, while severe seizures post-treatment indicated poor results for infants.
Area of Science:
- Neuroscience
- Pediatric Neurology
- Developmental Neuroscience
Background:
- Neonatal seizures pose significant risks to the developing nervous system.
- Understanding factors influencing outcomes is crucial for clinical management.
Purpose of the Study:
- To determine if seizure severity and treatment parameters predict outcomes in neonates.
- To investigate the influence of seizure characteristics on the incidence of epilepsy.
Main Methods:
- Assessed outcomes through follow-up examinations, record reviews, and school performance.
- Evaluated epilepsy in relation to developmental outcomes and neuroimaging findings.
- Analyzed seizure severity before and after anticonvulsant treatment.
Main Results:
- No association found between response to therapy and patient outcome.
- Mild to moderate seizure severity prior to treatment correlated with better developmental outcomes.
- High seizure severity after treatment was linked to adverse outcomes.
- Normal neuroimaging studies predicted better outcomes compared to diffuse abnormalities.
- Children with epilepsy were more likely to exhibit abnormal development and imaging.
Conclusions:
- Seizure severity, particularly before treatment, is a key predictor of neurodevelopmental outcomes in neonates.
- Post-treatment seizure severity and neuroimaging findings are also critical indicators of prognosis.
- Early identification and management of neonatal seizures are essential to mitigate long-term neurological deficits and epilepsy risk.
Abstract:
Animal and human studies indicate that neonatal seizures are detrimental to the developing nervous system. This study addressed whether parameters of seizure severity and treatment were predictive of outcome and influenced the incidence of epilepsy. The outcome of babies with neonatal seizures was assessed based on follow-up examination, record review, and school performance. Epilepsy was assessed relative to developmental outcome and imaging abnormalities. There was no association between response to therapy and outcome. Neonates with mild or moderate seizure severity and decreasing severity over time, prior to anticonvulsant treatment, were more likely to have normal or moderately abnormal development than a severe outcome or death. Babies who had the highest seizure severity following treatment were more likely to have adverse outcomes. Those with normal imaging studies were more likely to have better outcome than those with diffuse severe abnormalities. Children with epilepsy were more likely to have abnormal development and imaging.
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