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Cerebral angiogram of the left vertebral artery, AP view. (Left) Hospital day 5; (Right) Hospital day 1. Note the severe narrowing of the intracranial vertebral and basilar artery on the Day 5 angiogram compared to admission. This is vasospasm, a known delayed complication of SAH. If severe enough, vasospasm may lead to progressive ischemia and stroke. In some cases, an acute stroke then results in edema, herniation and death. Vasospasm is typically treated with volume expansion, mild evaluation of BP, and in some case, angioplasty of the involved blood vessels.
Revised
05/03/06.
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School of Medicine.