title: Symptomatic non-atherosclerotic bilateral extracranial vertebral artery occlusion treated with extracranial to intracranial bypass: case report.
abstract: Posterior fossa ischemia is not a very frequent situation. It is responsible for about 25% of all ischemic strokes, and the vast majority of the cases are related to atherosclerotic stenosis of the vertebral and/or basilar arteries. Acute ischemia can also occur in the setting of vertebral artery dissection, traumatic or spontaneous. Recently, blunt trauma has been increasingly recognized as a cause for craniocervical artery injury. The management options for both traumatic and atherosclerotic lesions of the posterior fossa are still under debate. We present a case of a delayed onset of hemodynamic ischemic symptoms due to bilateral vertebral artery occlusion probably related to remote trauma to the head and neck in a 55-year-old-man treated successfully with extracranial to intracranial bypass.
authors.affiliation: Toronto Western Hospital, University of Toronto, Toronto, Canada.
authors.forename: Leodante B
authors.initials: LB
authors.lastname: da Costa
authors.forename: Michael
authors.initials: M
authors.lastname: Tymianski
mesh_terms: D001157:Arterial Occlusive Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D002545:Brain Ischemia / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D014711:Vertebral Artery