[A case of benign neonatal sleep myoclonus].
We report on a male infant with benign neonatal sleep myoclonus (BNSM). At 12 days of age, he began to have frequent myoclonic jerks in the lower and/or upper extremities during sleep. Myoclonic jerks appeared bilaterally/synchronously and persisted for several minutes to 10 minutes. Both interictal and ictal EEG findings were normal. During follow-up, the patient did not take any medication, and his myoclonic jerks gradually decreased. They completely disappeared at 50 days of age. The patient's development was normal. BNSM is a benign disorder and myoclonic jerks generally disappear without medication. Early diagnosis is important to avoid unnecessary treatment. EEG-EMG recording is useful for diagnosis.
Ohta
Hodaka
H
Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama. ohodaka@yahoo.co.jp
Enoki
Hideo
H
Oka
Makio
M
Ohtsuka
Yoko
Y
D004569:Electroencephalography; D004576:Electromyography; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009207:Myoclonus / Q000175:diagnosis*