Discontinuing antiepileptic drugs in long-standing idiopathic generalised epilepsy.

J Neurol

Department of Neurology, Epilepsy-Center Berlin-Brandenburg, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.

Published: October 2019

Background: Once adults with long-standing idiopathic generalised epilepsy have achieved stable seizure remission, patients or physicians may attempt to discontinue their antiepileptic drug treatment. To date, risk of subsequent seizure relapse across the four idiopathic generalised epilepsy syndromes is largely unknown, and so are the clinical variables associated.

Methods: For this retrospective observational study, 256 adult outpatients with idiopathic generalised epilepsy were evaluated. Data were obtained from outpatient charts and, if possible, from additional telephone or mail interviews.

Results: In 84 patients (33%), antiepileptic medication was discontinued at least once. Median patient age at antiepileptic drug withdrawal was 33 years, and median duration of subsequent follow-up was 20 years. Seizures recurred in 46% of patients after a median latency of 11 months. Following multivariable analysis, seizure relapse was independently associated with short duration of seizure remission beforehand. If medication was withdrawn after < 5 years of seizure freedom, two-thirds of patients had a seizure relapse, while among those in remission for ≥ 5 years, only one-third relapsed.

Conclusions: Discontinuation of antiepileptic drug treatment can be successful in every other adult with long-standing idiopathic generalised epilepsy. Short duration of prior seizure remission appears to be a relevant predictor of seizure recurrence.

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http://dx.doi.org/10.1007/s00415-019-09457-zDOI Listing

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