Discontinuation of antiepileptic therapy: a prospective study in children
P A Bouma1, A C Peters, R J Arts
1Department of Neurology (Division of Child Neurology), Leiden University Hospital, The Netherlands.
Insights
Stopping anticonvulsant medication after 2 seizure-free years in children with epilepsy resulted in an 80.5% remission rate 5 years later. Early seizure onset was the only factor linked to recurrence risk.
Area of Science:
- Pediatric Neurology
- Clinical Epilepsy Research
Background:
- Epilepsy management often involves long-term anticonvulsant medication.
- Discontinuation of medication is considered after prolonged seizure remission.
Purpose of the Study:
- To evaluate the remission rate after anticonvulsant medication withdrawal in children with epilepsy.
- To identify predictive factors for seizure recurrence post-medication discontinuation.
Main Methods:
- Prospective study of 116 children with epilepsy.
- Medication withdrawn after 2 years of seizure freedom.
- Follow-up for 5 years post-withdrawal.
- Analysis of variables including epilepsy type, neurological status, and EEG findings.
Main Results:
- An 80.5% remission rate was observed 5 years after medication withdrawal.
- Younger age of seizure onset was significantly correlated with a higher probability of recurrence.
- No other examined factors reliably predicted recurrence.
Conclusions:
- Anticonvulsant withdrawal after 2 seizure-free years is associated with a high remission rate in children.
- Age of seizure onset is a potential, though not definitive, predictor of recurrence.
- Current evidence suggests medication withdrawal attempts should be considered for most children with epilepsy after 2 years of seizure freedom.
Abstract:
Anticonvulsant medication was stopped in a prospective study in 116 children with epilepsy who had had no seizures for a period of 2 years. A remission rate of 80.5% was found 5 years after withdrawal. The population studied was unselected, and based on children directly referred by general practitioners to the outpatient department. Among the many variables examined, such as type of epilepsy or seizure, presence of concomitant neurological or intellectual deficit, and epileptiform activity on the EEG, only the age of onset of seizures was significantly and positively correlated with the probability of recurrence after discontinuation of medication. In contrast to other recent studies, it was concluded that there are no reliable predictive factors for withholding from any individual "epileptic" child the benefit of attempts to stop medication after 2 years of seizure freedom.
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