• Prashant D Bhave, L Elizabeth Goldman, Eric Vittinghoff, Judith H Maselli, and Andrew Auerbach.
• Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA. pdbhave@gmail.com
• Heart Rhythm. 2012 Feb 1;9(2):163-9.

BackgroundAlthough statin lipid-lowering medications likely reduce perioperative ischemic complications, few data exist to describe statins' effects on risk for and outcomes of atrial fibrillation following noncardiac surgery.ObjectiveTo examine the association between treatment with statin medications and clinically significant postoperative atrial fibrillation (POAF) following major noncardiac surgery.MethodsA retrospective cohort study of patients aged 18 years or older who underwent major noncardiac surgery between January 1, 2008, and December 31, 2008. Cases of clinically significant POAF were selected by using a combination of International Classification of Diseases-9 codes and clinical variables. We defined statin users as those whose pharmacy data included a charge for a statin drug on the day of surgery, the day after surgery, or both.ResultsOf 370,447 patients, 10,957 (3.0%) developed clinically significant POAF; overall, 79,871 (21.6%) received a perioperative statin. Patients receiving statins were generally older (68.8 vs 61.1 years; P <.001) and more likely to be receiving a beta-blocker (50.3% vs 21.6%; P < .001). Statin use was associated with a lower unadjusted rate of POAF (2.6% vs 3.0%; P < .001). After adjustment for patient risk factors and surgery type, odds for POAF remained significantly lower among statin-treated patients (adjusted odds ratio = 0.79; 95% confidence interval = 0.71-0.87; P < .001). Statin use was not associated with differences in cost, length of stay, or mortality among patients who developed POAF.ConclusionTreatment with statin agents appears to be associated with a lower risk for clinically significant POAF following major noncardiac surgery.Copyright © 2012 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.

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