An 11-year-old girl with nonketotic hyperglycinemia who typically presented with a picture of early myoclonic encephalopathy in the neonatal period is presented in this article. Treated early with sodium benzoate and dextromethorphan, she became seizure-free, while myoclonus persisted. During examination, multifocal rhythmic myoclonic jerks in gamma frequency enhanced by motor activity were noted. Coherence analysis of the electroencephalography-electromyography relationship indicated a cortical origin of the myoclonic jerks. Observation of this case suggests that rhythmic cortical myoclonus may represent a late evolution of this rare disorder.
Titolo: | High-frequency rhythmic cortical myoclonus in a long-surviving patient with nonketotic hypergylcemia |
Autori: | |
Settore Scientifico Disciplinare: | Settore MED/38 - Pediatria Generale e Specialistica |
Data di pubblicazione: | 2008 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | 10.1177/0883073807308699 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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