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Effect of Intraoperative Arterial Hypotension on the Risk of Perioperative Stroke After Noncardiac Surgery: A Retrospective Multicenter Cohort Study
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Abstract
Intraoperative cerebral blood flow is mainly determined by cerebral perfusion pressure
and cerebral autoregulation of vasomotor tone. About 1% of patients undergoing noncardiac
surgery develop ischemic stroke. We hypothesized that intraoperative hypotension within
a range frequently observed in clinical practice is associated with an increased risk
of perioperative ischemic stroke within 7 days after surgery.