外伤后急性硬膜下血肿(aSDHs)术后死亡率高,文献报道血肿消除后死亡率仍高达50％～90％。影响其预后的原因众多。作者通过复习病史及CT形态学分析发现在外伤后aSDHs病例中,术前CT显示血肿位于“硬膜内(intradural)”,蛛网膜下腔清晰存在者,术后恢复良好。 作者选择所在医院1993～1994年间经手术治疗的外伤后31例aSDHs患者为研究对象,患者从外伤至 Post-traumatic acute subdural hematoma (aSDHs) postoperative mortality, reported in the literature after hematoma elimination mortality is still as high as 50% to 90%. There are many reasons that affect its prognosis. By reviewing the medical history and CT morphological analysis, the authors found that in aSDHs after trauma, preoperative CT showed that the hematoma was located in “intradural” and the subarachnoid space was clearly present. The postoperative recovery was good. The authors chose 31 patients with aSDHs after surgical treatment of trauma in the hospital from 1993 to 1994 as the research object,