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Progressive Myoclonus Epilepsy: Diversity of Disorders and Key Points in Clinical Practice Maya Tojima 1 , Katsuya Kobayashi 1 , Haruhisa Inoue 2,3,4 , Akio Ikeda 5 1Department of Neurology, Kyoto University Graduate School of Medicine 2Center for iPS Cell Research and Application (CiRA), Kyoto University 3iPSC-based Drug Discovery and Development Team, RIKEN BioResource Research Center 4Medical-risk Avoidance based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project 5Department of Epilepsy, Movement Disorders and Physiology, Kyoto University Graduate School of Medicine Keyword: ミオクロニー発作 , 全般強直間代発作 , 指定難病 , 表現促進現象 , ペランパネル , myoclonic seizure , generalized tonic-clonic seizure , intractable disease , anticipation , perampanel pp.615-626
Published Date 2025/5/1
DOI https://doi.org/10.11477/mf.188160960770050615
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Abstract

Progressive myoclonic epilepsies (PMEs) are a group of disorders characterized by progressive (1)myoclonus, (2)myoclonic and generalized tonic-clonic seizures, (3)cerebellar symptoms, and (4)cognitive decline. PMEs encompass various genetic disorders, including dentatorubral-pallidoluysian atrophy, benign adult familial myoclonus epilepsy, myoclonic epilepsy with ragged-red fibers, Unverricht-Lundborg disease, and Lafora disease. The diagnosis is based on clinical symptoms, inheritance patterns, electrophysiological findings, and genetic or pathological tests. Treatment for PMEs remains primarily symptomatic for seizures and myoclonus, although perampanel has reportedly improved epileptic symptoms with rational pharmacological properties. This review highlights the clinical features, genetic bases, and diagnostic and therapeutic advancements in PMEs, offering a comprehensive overview of this challenging and diverse group of disorders.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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