Rare Indications for EIAB Procedures
Common indications for EIAB surgery are stenosis or occlusion of one internal carotid artery (ICA) or middle cerebral artery (MCA). Prophylactic anastomoses are also carried out to minimize the risk of ischemic complications in patients in whom internal carotid artery ligation is planned for any of a variety of reasons. Among these elective EIAB indications are tumors of the skull base affecting the internal carotid artery and giant aneurysms of the ICA which cannot be attacked by direct approach (1, 2, 4, 5, 7). In addition, a number of cases are known where EIAB has prevented exacerbation of ischemic deficit in patients with certain lesions that are, as yet, untreatable, e.g., Moya-Moya syndrome (8), fibromuscular dysplasia, and Takayasu’s syndrome.
KeywordsInternal Carotid Artery Middle Cerebral Artery Vertebral Artery None None Giant Aneurysm
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