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Spontaneous fits after convulsions with fever
Insights
Febrile convulsions in children can lead to epilepsy. Perinatal abnormalities significantly correlate with recurrent seizures, particularly in lower social classes, suggesting distinct developmental pathways for different epilepsy types.
Area of Science:
- Pediatric Neurology
- Epileptology
- Developmental Neuroscience
Background:
- Febrile convulsions are common in childhood.
- Long-term outcomes and risk factors for epilepsy development require further investigation.
Purpose of the Study:
- To assess the long-term recurrence of seizures after febrile convulsions.
- To identify predictors for the development of ongoing epilepsy.
Main Methods:
- Longitudinal follow-up of 112 children initially presenting with febrile convulsions.
- Correlation analysis with perinatal factors, social class, and neurological outcomes.
Main Results:
- 17% experienced at least one subsequent spontaneous seizure.
- Perinatal abnormalities were significantly associated with seizure recurrence.
- 12% developed continuing recurrent seizures, with grand mal epilepsy linked to lower social class, perinatal issues, and neurological deficits.
- Psychomotor epilepsy correlated with prolonged/repeated initial convulsions and unilateral features.
Conclusions:
- Febrile convulsions can have long-term sequelae, including recurrent seizures and epilepsy.
- Perinatal abnormalities are a key risk factor for developing ongoing epilepsy after febrile convulsions.
- Different mechanisms may underlie the development of grand mal and temporal lobe epilepsies.
Abstract:
112 of an original sample of 134 children with febrile convulsions were reviewed between 8 years and 9 years 10 months after their initial attack. 17% of those followed up had had at least one spontaneous fit. A significant correlation was found with perinatal abnormalities. 12% had continuing recurrent fits. Persisting grand mal occurred most commonly in lower social class children who had had perinatal abnormalities and continued to have long-term neurological disorders. Psychomotor epilepsy correlated significantly with a prolonged or repeated initial convulsion with unilateral features. It is suggested that the development of grand mal and temporal lobe epilepsies after convulsions with fever are determined by different mechanisms.