title: [Non-operative regions extradural hematoma: a review of 5 cases].
abstract: The authors report five patients who developed non-operative regions extradural hematoma following removal of intracranial tumors (3 cases) or cystiform diseases (2 cases). 3 cases developed on the left hemicerebrum. 2 cases formed on the bilateral. 4 cases were supratentorial operations, one inferior tentorial. The causative mechanisms of hematoma formation were attributed to a rapid fall in intracranial pressure, an increased blood velocity and the patient's position during the operation. Unexplained cerebral swelling during operation or delayed post-operative recovery should be intensely investigated by CT scanning. An emergency operation is indicated when the hematoma volume is more than 30ml.
authors.affiliation: Xuanwu Hospital, Capital Institute of Medicine, Beijing.
authors.forename: G G
authors.initials: GG
authors.lastname: Zhao
authors.forename: J K
authors.initials: JK
authors.lastname: Cao
authors.forename: R L
authors.initials: RL
authors.lastname: Zhao
mesh_terms: D000328:Adult; D001921:Brain / Q000601:surgery*; D001932:Brain Neoplasms / Q000601:surgery; D002648:Child; D005260:Female; D006407:Hematoma, Epidural, Cranial / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed