A Case of Time-locked Periodic Myoclonus in Pontine Infarction

J Korean Neurol Assoc > Volume 21(1); 2003 > Article

Journal of the Korean Neurological Association 2003;21(1): 109-110.

"뇌교경색 후 특정 시간대에 발생한 주기성 간대성근경련"

권형민 , 이용석 고상배 박성호

서울특별시립 보라매병원 신경과,서울대학교 의과대학 신경과학교실

A Case of Time-locked Periodic Myoclonus in Pontine Infarction

Hyung-Min Kwon

"Department of Neurology, Seoul Municipal Boramae Hospital College of Medicine, Seoul National University"

Abstract

"Post-stroke involuntary movements are often noted but time-locked myoclonus has not yet been reported. A 53-year-old man was admitted with mild left side weakness and ataxia. He also had involuntary jerky movement of limbs from the onset, which occurred exactly at 11:00 PM everyday. Symptoms lasted for 30 minutes and were relieved by clon-azepam. Brain MRI showed high signal lesion on right pontine tegmentum. We suggest that this time-locked phenome-non may be related with reticular structures containing the so called, "human biological clock" ."