A case report of sleep-related dyskinesia: neck myoclonus

VernacularTitle:睡眠相关运动障碍之颈肌阵挛一例
Author: Guoyan CHEN ¹ ; Jinxiang CHENG ; Weiyi YANG ; Ting YANG ; Changjun SU
Author Information

1. 空军军医大学唐都医院神经内科，西安　710038
From: Chinese Journal of Neurology 2020;53(6):442-444
CountryChina
Language:Chinese
Abstract: Neck myoclonus is part of sleep-related dyskinesia characterized by sudden myoclonus during night sleep. Myoclonus causes pronounced brief rotation or flexion of the head. As a single event, neck myoclon ususually occurs during rapid eye movement (REM) sleep, and it lasts longer than 0.5-1.0 s. At present, neck myoclonus is rarely reported. A 28-year-old male whose clinical manifestation was repeated head swing during sleep was admitted to Tangdu Hospital. Video-polysomnography showed that all the events occurred during REM sleep, and some of them were accompanied by micro-arousal reaction and leg movement. Small does of clonazepam could relieve symptoms.