[Infantile spinal amyotrophy with myotonia. Electromyographic study].
An unusual feature was observed in a 7-year-old boy presenting with type II infantile spinal muscular atrophy: percussion myotonia, clinical expression of pseudomyotonic volleys (bizarre high frequency discharge or complex repetitive discharge).
Renault
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Laboratoire de neurophysiologie clinique de l'enfant, hôpital Trousseau, Paris, France.
D002648:Child; D004576:Electromyography; D006801:Humans; D008297:Male; D009134:Muscular Atrophy, Spinal / Q000503:physiopathology*; D009222:Myotonia / Q000150:complications / Q000503:physiopathology*; D014897:Spinal Muscular Atrophies of Childhood / Q000150:complications / Q000503:physiopathology*
Amyotrophie spinale infantile avec myotonie. Etude electromyographique.