title: Hyperemic and ischemic problems of surgical treatment of arteriovenous malformations.
abstract: Three patients with arteriovenous malformations are described who showed signs of massive hyperemia in the vascular territory of the normal brain proximal to arterial ligation. One additional patient had evidence of ischemia of the brain in the territory distal to ligation (steal), and in another both mechanisms were considered as operative hazards.
mesh_terms: D000293:Adolescent; D000328:Adult; D002545:Brain Ischemia / Q000000981:diagnostic imaging / Q000209:etiology*; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D006940:Hyperemia / Q000209:etiology*; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D008026:Ligation; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed