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Journal articles

Management of epilepsy in MERRF syndrome

Abstract : Myoclonic epilepsy with ragged-red fibers (MERRF) syndrome is a rare syndromic mitochondrial disorder (MID) with a broad phenotypic but narrow genotypic heterogeneity. One of the predominant phenotypic features in addition to myopathy is epilepsy. The most frequent seizure type in MERRF is generalised myoclonic seizure but also focal myoclonic, focal atonic, generalised tonic-clonic, generalised atonic, generalised myoclonic-atonic, typical absences, or tonic-clonic seizures of unknown onset have been reported. There are no guidelines available for the management of epilepsy in MERRF syndrome but several expert opinions and general recommendations for the treatment of mitochondrial epilepsy have been published. According to these recommendations the antiepileptic drugs (AEDs) of choice are levetiracetam, topiramate, zonisamide, piracetam, and benzodiazepines. Perampanel has not been applied in MERRF patients but is promising in non-mitochondrial myoclonic epilepsy. Mitochondrion-toxic agents, including mitochondrion-toxic AEDs, such as valproate, carbamazepine, phenytoin, and barbiturates, should be avoided as well as AEDs potentially enhancing the frequency of myoclonus, such as phenytoin, carbamazepine, lamotrigine, vigabatrin, tiagabine, gabapentin, pregabalin, and oxcarbazepine.
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Contributor : AbdelHakim Ben Hassine Connect in order to contact the contributor
Submitted on : Thursday, February 7, 2019 - 3:07:05 PM
Last modification on : Wednesday, March 31, 2021 - 9:32:06 AM

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Josef Finsterer, Sinda Zarrouk-Mahjoub. Management of epilepsy in MERRF syndrome. Seizure - European Journal of Epilepsy, Elsevier, 2017, 50, pp.166-170. ⟨10.1016/j.seizure.2017.06.010⟩. ⟨pasteur-02010870⟩



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