31 Pathophysiology of Myoclonic Seizures

Introduction and Definitions Myoclonic seizures (MS) are characterized by sudden, brief ( Figs. 31-1 and > 31-2), or the group of progressive myoclonus epilepsies (> Figs. 31-3 and > 31-4; >Table 31-1). Many of these conditions are now receiving increasing attention because mutations in genes have increasingly been identified (> Table 31-2).