关键词: 癫痫, 肌阵挛, 失张力, 痉挛, 强直, 视频脑电图, 肌电图

Abstract:

Abstract：Objective To study the clinical and neuro-electrophysiological features of transient epileptic seizures by using polygraphic channel VEEG—EMG monitoring. Methods The information of 51 epilepsy children with rapid falling，nodding or limb shaking in video electroencephalogram was collected in the Department of Pediatric Neurology， Peking University First Hospital from June 2012 to March 2013.The clinical features，EEG and EMG patterns were analyzed retrospectively. Results Totally 745 seizures were found in 51 patients. The seizures included 391 epileptic spasms（52.5%），138 myoclonic seizures（18.5%），117 atonic seizures（15.7%），61 negative myoclonus（8.2%），27 tonic seizures（3.6%）and 11 myoclonic atonic seizures（1.5%）.Different clinical manifestations were with different clinical-EEG-EMG patterns.According to the duration of EMG changes，patients were divided into EMG-burst group and EMG-static group. Conclusions Epileptic seizures with rapid falling, nodding or limb shaking are most affected by epileptic spasms，myoclonic seizures，atonic seizures，negative myoclonus，tonic seizures and myoclonic atonic seizures.Their common feature is rapid and transient，which makes them difficult to be diagnosed only by illness history.But by performing VEEG-EMG，we can accurately identify the types of seizures，which will be helpful in the diagnosis and treatment.

Key words: epilepsy, myoclonic, atonic, spasms, tonic, VEEG, EMG