Table 1.
Demographic characteristics of the study populations.
| CABG | |||
|---|---|---|---|
| AF+ | AF- | P-value | |
| Variables | (n=80) | (n=312) | |
| Age (years) | 59 (52.5-62) | 53 (47-62) | 0.003 |
| Male gender (n, %) | 57 (71.2%) | 245 (78.5%) | 0.152 |
| Diabetes mellitus (n, %) | 31 (38.7%) | 104 (33.3%) | 0.363 |
| Hypertension (n, %) | 52 (65%) | 153 (49%) | 0.011 |
| Dyslipidemia (n, %) | 12 (15%) | 33 (10.5%) | 0.268 |
| COPD (n, %) | 6 (7.5%) | 28 (8.9%) | 0.676 |
| Smoking (n, %) | 24 (30%) | 98 (31.4%) | 0.808 |
| BMI (kg/m2) | 27.4±5.2 | 28.1±4.6 | 0.261 |
| Systolic blood pressure (mmHg) | 123.8±15.1 | 122.6±12.4 | 0.493 |
| Diastolic blood pressure (mmHg) | 76.3±10.4 | 75.2±7.7 | 0.295 |
| LVEF (%) | 50.4±11.5 | 58.1±9.7 | < 0.001 |
| Left atrium (mm) | 3.8 ±0.4 | 3.7 ±0.5 | 0.312 |
| Previous medications, n (%) | |||
| β-blocker | 71 | 285 | 0.473 |
| Angiotensin-aldosterone antagonists | 62 | 260 | 0.224 |
| Statin | 76 | 296 | 0.963 |
| Operative and postoperative parameters | |||
| EuroSCORE II | 4.78±0.89 | 4.56±0,9 | 0.097 |
| Bypass time (min) | 94.8±5.8 | 96±8.7 | 0.391 |
| Cross-clamping time (min) | 55.5±4.3 | 56.1±3.5 | 0.224 |
| Number of bypass grafts | 2.9±1.5 | 2.6±1.3 | 0.284 |
| Duration of the hospitalization at the intensive care unit (days) | 3.08±0.5 | 3.02±0.7 | 0.505 |
| Extubation time (hours) | 16.4±3.3 | 16.0±3.6 | 0.321 |
| Intraoperative mortality (n, %) | - | - | - |
| In-hospital mortality (n, %) | 3 | 9 | 0.689 |
AF=atrial fibrillation; BMI=body mass index; CABG=coronary artery bypass grafting; COPD=chronic obstructive pulmonary disease; EuroSCORE=European System for Cardiac Operative Risk Evaluation; LVEF=left ventricular ejection fraction