Use of the Extracranial-Intracranial Arterial Bypass in the Management of Refractory Vasospasm: A Case Report

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Abstract
Cerebral arterial vasospasm after aneurysmal subarachnoid hemorrhage remains one of the major causes of morbidity and mortality in patients surviving the initial hemorrhage. Once established, no known method has been shown to reverse this process in humans. Although intravascular volume expansion and induced arterial hypertension have been shown to be effective in the reversal of neurological deficits secondary to vasospasm, a large proportion of patients remain refractory to these methods. We report one such case successfully managed by the estalishment of an extracranial-intracranial anastomosis in an attempt to augment collateral flow.

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