Postanoxic symptomatic oscillatory myoclonus.
Two young patients with a history of birth anoxia and cerebral palsy developed paroxysmal irregularly oscillating muscle jerks at rest and during voluntary movement. Electrophysiologic studies revealed short bursts of alternating activity at 4 to 6 Hz in antagonist muscles. The absence of time-locked EEG discharges suggests a subcortical origin for this unusual form of myoclonus. A comparison is made between this and previously reported conditions with a similar paroxysmal burstlike nature.
D002648:Child; D004576:Electromyography; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000150:complications; D007231:Infant, Newborn; D008297:Male; D009207:Myoclonus / Q000209:etiology / Q000503:physiopathology*