Unprovoked seizures after complex febrile convulsions
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Published on: June 25, 2016
1Child Developmental Center and Pediatric Neurology Unit, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Insights
Children with complex febrile convulsions face a higher risk of epilepsy. Partial seizures during febrile convulsions were linked to a greater epilepsy risk compared to multiple seizures.
Area of Science:
- Neurology
- Pediatrics
- Epileptology
Background:
- Febrile convulsions are common in children.
- Complex febrile convulsions increase epilepsy risk.
- Defining criteria for complex febrile convulsions include prolonged, partial, or multiple seizures.
Purpose of the Study:
- To determine the individual significance of each criterion for complex febrile convulsions.
- To assess the epilepsy risk associated with prolonged, partial, and multiple seizures.
Main Methods:
- Retrospective analysis of children admitted for febrile convulsions.
- Follow-up to identify epilepsy development.
- Statistical comparison of epilepsy risk based on convulsion type.
Main Results:
- 12% of children had complex febrile convulsions.
- 27% of children with complex febrile convulsions developed epilepsy.
- Partial febrile convulsions showed a trend toward higher epilepsy risk (45%) compared to multiple seizures (21%).
- Lower mean age of seizure onset in children who developed epilepsy.
Conclusions:
- Partial seizures are a significant risk factor for developing epilepsy after febrile convulsions.
- Early seizure onset may indicate a higher risk of subsequent epilepsy.
- Further research is needed to fully elucidate the predictive value of each complex febrile convulsion criterion.
Abstract:
Children with complex febrile convulsions bear a higher risk of developing epilepsy than children with simple febrile convulsions. Complex febrile convulsions are defined by the presence of prolonged seizures, partial seizures and multiple seizures occurring during the same day. The aim of this study is to delineate the relative significance of each of the three criteria defining complex febrile convulsions. Fifty-seven out of 477 children (12%) admitted for febrile convulsions had complex febrile convulsions and normal neurological examination. Follow-up was available for 48 (84%) of them. Thirteen of these 48 (27%) had epilepsy at follow-up. The mean age of seizure onset among the patients with subsequent afebrile seizures was significantly lower than the rest (10.8 months versus 16.8 months). The patients with partial febrile convulsions showed a trend toward a higher risk (45%) of developing epilepsy than the patients with multiple febrile convulsions (21%).
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