Ugawa Y, Genba K, Shimpo T, Mannen T
Department of Neurology, School of Medicine, University of Tokyo, Japan.
J Neurol Neurosurg Psychiatry. 1990 Mar;53(3):260-2. doi: 10.1136/jnnp.53.3.260.
The onset and offset of electromyographic (EMG) silence were studied physiologically by silent period locked averaging method (SPLA) combined with a computer-assisted method for detecting EMG changes in 11 patients with asterixis of various aetiologies. The onset followed the EMG discharge which was closely associated with a sharp wave probably generated by the motor cortex in three patients. No EEG activity could be shown to be related to the offset of EMG silence in every patient. Jerky movement of asterixis was temporally related to the offset of EMG silence rather than the onset.
采用静息期锁定平均法(SPLA)结合计算机辅助检测肌电图变化的方法,对11例不同病因扑翼样震颤患者的肌电图(EMG)静息期的起始和终止进行了生理学研究。在3例患者中,起始跟随肌电图放电,其与可能由运动皮层产生的锐波密切相关。未发现脑电图活动与每位患者肌电图静息期的终止有关。扑翼样震颤的急促运动在时间上与肌电图静息期的终止相关,而非起始相关。