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Impact of prophylactic beta-blocker therapy to prevent stroke after noncardiac surgery.

Author(s): van Lier F, Schouten O, Hoeks SE, van de Ven L, Stolker RJ, Bax JJ, Poldermans D

Affiliation(s): Department of Anesthesiology, Erasmus Medical Centre, Rotterdam, The Netherlands.

Publication date & source: 2010-01-01, Am J Cardiol., 105(1):43-7. Epub 2009 Nov 14.

Publication type: Clinical Trial, Phase I; Clinical Trial, Phase II; Clinical Trial, Phase IV; Comparative Study; Randomized Controlled Trial

beta Blockers are widely used to improve the postoperative cardiac outcome in patients with coronary artery disease scheduled for noncardiac surgery. However, recently serious concerns regarding the safety of perioperative beta blockers have emerged. To assess the incidence, risk factors, and beta-blocker use associated with postoperative stroke in the Dutch Echocardiographic Cardiac Risk Evaluation Applying Stress Echocardiography (DECREASE) trials, we evaluated all 3,884 patients of the DECREASE trials for postoperative stroke. All cardiac risk factors and medication use were assessed. The incidence of stroke within 30 days after surgery was recorded. The incidence of postoperative stroke in the DECREASE trials was 0.46% (18 of 3,884). For the beta-blocker users, the incidence was 0.5%. All the strokes had an ischemic origin. A history of stroke was associated with a greater incidence of postoperative stroke (odds ratio [OR] 3.79, 95% confidence interval [CI] 1.2 to 11.6). Statins and anticoagulants were not associated with postoperative stroke (OR 0.85, 95% CI 0.3 to 2.4; and OR 1.27, 95% CI 0.4 to 4.6, respectively). No association with bisoprolol therapy was found (OR 1.16, 95% CI 0.4 to 3.4). In conclusion, with a low-dose bisoprolol regimen started > or =30 days before surgery, no association was observed between beta-blocker use and postoperative stroke.

Page last updated: 2010-10-05

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