Pathologic myoclonus of the newborn: electrographic and clinical correlations.

Previous reports have described neonatal myoclonus as a benign movement in healthy premature newborns or as a clinical seizure in neonates with severe encephalopathies. The present report describes electroencephalographic-myoclonic correlations which occur independently from sustained electrical discharges in ten neonates. Cortical, reticular, and segmental types of neonatal myoclonus, similar to adult forms, are described.