Preoperative chronic beta-blocker prescription in elderly patients as a risk factor for postoperative mortality stratified by preoperative blood pressure: a cohort study.


Anesthesiology & Critical Care Trials & Interdisciplinary Outcomes Network, Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA. Electronic address: [Email]


Recent data suggest that beta blockers are associated with increased perioperative risk in hypertensive patients. We investigated whether beta blockers were associated with an increased risk in elderly patients with raised preoperative arterial blood pressure.


beta blocker,blood pressure,hypertension,mortality,perioperative outcome,risk factors,surgery,