Intraoperative Hypotension and Postoperative Stroke in Older Patients Who Had Brain Tumor Resections: A Retrospective Cohort Analysis.

Postoperative strokes were common in older patients who underwent brain tumor resection, with about 14% having ischemic cerebrovascular events within 30 days, of which 86% were clinically silent. Malignant brain tumors and previous ischemic vascular events were associated with postoperative strokes, but area under 75 mm Hg was not.