title: Chronic subdural hematoma following bypass surgery--report of three cases.
abstract: Bypass surgery is a safe procedure with low mortality and morbidity, and few reported surgical complications. Three patients developed postoperative chronic subdural hematoma (CSDH): two with stroke after superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis and one with moyamoya disease after STA-MCA anastomosis combined with encephalomyosynangiosis. The factors inducing CSDH after revascularization in the seven reported and present cases included postoperative subdural effusion associated with brain atrophy, and postoperative anticoagulant therapy such as aspirin. CSDH may occur in patients with pre-existing brain atrophy and postoperative subdural effusion. Anticoagulant therapy should be avoided at the early postoperative stage after bypass surgery.
authors.affiliation: Department of Neurosurgery, Gifu University School of Medicine.
authors.forename: T
authors.initials: T
authors.lastname: Andoh
authors.forename: N
authors.initials: N
authors.lastname: Sakai
authors.forename: H
authors.initials: H
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Yano
authors.forename: H
authors.initials: H
authors.lastname: Hirayama
authors.forename: Y
authors.initials: Y
authors.lastname: Imao
authors.forename: K
authors.initials: K
authors.lastname: Deguchi
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging; D002544:Cerebral Infarction / Q000000981:diagnostic imaging / Q000601:surgery; D002548:Cerebral Revascularization / Q000009:adverse effects*; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging / Q000601:surgery; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009072:Moyamoya Disease / Q000601:surgery; D014057:Tomography, X-Ray Computed