title: Fatal complication of the "bonnet bypass": case report.
abstract: A patient with transient ischemic attacks and an occluded right common carotid artery underwent a left superficial temporal artery to right middle cerebral artery vein graft (bonnet bypass). One week after operation, minor trauma to the scalp caused avulsion of the anastomosis and a massive fatal acute subdural hematoma. The mechanism of the vascular avulsion and precautions to be taken to avoid such problems in other patients undergoing this procedure are discussed.
mesh_terms: D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000379:methods*; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging*; D006801:Humans; D002546:Ischemic Attack, Transient / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012501:Saphenous Vein / Q000293:injuries / Q000637:transplantation*; D012535:Scalp / Q000293:injuries; D013529:Surgical Wound Dehiscence / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed