ACEI: Angiotensin converting enzyme inhibitör; ARB: Angiotensin receptor blocker; BUN: Blood urea nitrogen; COPD: Chronic obstructive pulmonary disease; HDL-C: High-density lipoprotein cholesterol; LDL-C: Low-density lipoprotein cholesterol; PoAF: Postoperative atrial fibrillation; SR: Sinus rhythm; WBC: White blood cell.

Table 2. Echocardiographic characteristics of the patients.