Neonatal Sleep Myoclonus Followed by Myoclonic-Astatic Epilepsy: A Case Report

Neonatal sleep myoclonus documented polygraphically during the second month of life and subsequent development of a seizure disorder are reported in a 3-year-old boy. Several generalized tonic-clonic seizures associated with febrile illnesses occurred during the first year of life; astatic and myoclonic attacks began at age 13 months. A complex partial seizure occurred for the first time at age 3 years. Differential diagnosis of age-related generalized myoclonic epileptic syndromes and various forms of neonatal myoclonus were considered in this unusual case.