210例颅脑损伤病人动态脑电监测分析

An analysis of ambulatory EEG in 210 patients with craniocerebral trauma

报告２４ｈ动态脑电图（ＡＥＥＧ）监测２１０例颅脑损伤病人脑电活动，其异常率为８５．２％，略高于文献报道的脑电图及脑电地形图的异常率。其中临床诊断为外伤性癫痫的３０例病人ＡＥＥＧ均异常，２５例有痫样放电（１２例出现于睡眠中）。因此，ＡＥＥＧ的昼夜记录对提高癫痫诊断的阳性率价值很大。１０８例ＣＴ异常的病例中，１０４例ＡＥＥＧ有异常，其阳性一致率为９６．３％；４５例ＣＴ正常中，３０例ＡＥＥＧ有异常，占６６．７％。所以，ＣＴ与ＡＥＥＧ在颅脑外伤诊断中各有所长，不能相互取代。

The brain electrical activity of 210 patients with craniocerebral trauma are monitored by 24 h ambulatory electroencephalogram(AEEG) with an abnormality rate of 85.2% which was slightly higher than that previously reported by EEG and BEAM. The brain waves of traumatic epilepsy in 30 cases were all abnormal, and 25 of the 30 patients had epileptiform discharges, of whom 12 showed abnormal during sleep. 104 of 108 (96.3%) patients with abnormal CT had positive records on AEEG, and 30 of 45 (66.7%) cases with normal CT had abnormal AEEG. It was believed that circadian surveillance of AEEG might be valuable to increase the positivity rate in the diagnosis of traumatic epilepsy, and AEEG or CT could not be replaced each other in the diagnosis of craniocerebral trauma.