非手术区域的硬脑膜外血肿（附五例报告）

Non-operative regions extradural hematoma:a reviewof 5 cases.

作者报告５例非手术区域硬脑膜外血肿。其中３例为脑肿瘤术后，２例为囊性占位病变术后。３例发生于左侧半球，２例在双侧半球。作者认为血肿形成机理与颅内压突然下降，血流速度增加及体位等因素有关。对于术中不能解释的脑肿胀或术后延迟恢复者应尽早行ＣＴ扫描。血肿量超过３０ｍｌ者应急诊手术治疗。

AbstractThe authors report five patients who developednon-operative regions extradural hematoma followingremoval of intracranial tumors(3 cases)or cystiformdiseases(2 cases).3 cases developed on the lefthemicerebrum.2 cases formed on the bilateral.4 caseswere supratentorial operations,one inferior tentorial.Tbe causative mechanisms of hematoma formationwere attributed to a rapid fall in intracranial pressure,an increased blood velocity and the patient's positionduring the operation. Unexplained cerebral swellingduring operation or delayed post-operative recoveryshould be intensely investigated by CT scanning.An emergency operation is indicated when thebematoma volume is more than 30ml.