乙肝相关性脑炎(encephalistis associated with hepatitis B)是指HBV感染致急性乙型肝炎的同时并发病毒性脑炎。临床以发热、乏力、消化道症状、黄疸、肝功能损害,继之出现头痛、呕吐、躁动,有不同程度的意识障碍为主要特征。与肝性脑病有着根本的区别。其脑电图检查,表现为广泛波率变慢,部分出现低中幅δ波或θ波。脑脊液检查,外观清亮,压力增高,一般不超 Encephalistis associated with hepatitis B refers to concurrent viral encephalitis caused by HBV infection in patients with acute hepatitis B. Clinical fever, fatigue, gastrointestinal symptoms, jaundice, liver dysfunction, followed by headache, vomiting, restlessness, with varying degrees of disturbance of consciousness as the main feature. And hepatic encephalopathy has a fundamental difference. The EEG examination showed a wide range of slowed down the wave rate, part of the low-medium amplitude δ wave or θ wave. Cerebrospinal fluid examination, the appearance of clear, high pressure, generally not super