1997～ 1999年 ,我们应用大剂量氟美松治疗危重型乙型脑炎 ,获得了较好效果 ,现报告如下。1　临床资料1.1　病例选择　全部患者均系我院 1997～ 1999年住院病例。根据临床表现、脑脊液改变、病程及治疗反应符合乙脑诊断标准。将 3年内 7、8、9月发病的全部危重型 (包括重型、极 From 1997 to 1999, we used high-dose dexamethasone in the treatment of critical Japanese encephalitis and obtained good results. The report is as follows. 1 Clinical data 1.1 Case Selection All patients were hospitalized in our hospital from 1997 to 1999 cases. According to clinical manifestations, changes in cerebrospinal fluid, course of disease and response to treatment meet the diagnostic criteria of JE. In 3 years, 7, 8, September all critically ill type (including heavy, extremely