肝性昏迷是肝脏疾病的严重表现,尽早发现昏迷前兆,采取紧急防治措施,可以予防或减少昏迷的发生,延长病人的生命。脑电波检查往往在临床表现及生化紊乱以前即呈异常,可以邦助肝性昏迷的早期诊断(1～8)。本文报告各类肝病患者45例脑电波检查所见,并比较探讨神志清醒及昏迷者脑电波的差异。 Hepatic coma is a serious manifestation of liver disease, early detection of comatose precursors, take emergency control measures, can prevent or reduce the incidence of coma, prolong the life of patients. EEG is often abnormal before clinical manifestations and biochemical disorders, can help early diagnosis of hepatic coma (1-8). This article reports 45 cases of various types of liver disease seen in brain wave examination, and compared the difference between conscious and coma brainwaves.