Predictors for Postoperative Atrial Fibrillation After Cardiac Surgery

Is the patient undergoing coronary artery bypass graft (CABG) surgery?

Is the patient having a valve replacement (aortic, other?

Age of the patient

• have a history of preoperative atrial fibrillation?

• have a history of supraventricular tachycardia?

• have a history of myocardial infarction affecting the inferior wall?

• have evidence of heart failure or low left ventricular ejection fraction prior to surgery?

• being treated with an angiotensin-converting enzyme inhibitor prior to the operation?

• being treated with a beta-blocker prior to the operation?

Has angiotensin-converting enzyme (ACE) inhibitor therapy been discontinued in the perioperative period?

Has beta-blocker therapy been discon-tinued in the perioperative period?

Has the serum magnesium been elevated following surgery?

Has the patient had poorly controlled electrolyte or fluid imbalances following surgery?