Neurosurgery
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To study the cerebral metabolism and its relationship to cerebral blood flow (CBF) acutely after subarachnoid hemorrhage (SAH). ⋯ The data suggest that SAH induced an acute global decrease in CBF together with a depression in the cerebral metabolism. The degree of the changes was related to the severity of the hemorrhage. The metabolic derangements were not always explained by ischemic episodes.