Table 3.
Impact of patients' preoperative characteristics on the development of post-CABG atrial fibrillation
| Characteristic | Group A (AF) | Group B (no AF) | Significance (p) |
|---|---|---|---|
| 157 patients | 191 patients | ||
| Gender (male vs female) | p = 0.359 | ||
| Male | 137 | 160 | |
| Female | 20 | 31 | |
| Age | |||
| 41-55 | 33 | 50 | NS |
| 56-65 | 56 | 80 | NS |
| > 65 | 68 | 61 | p = 0.029 |
| Diabetes | 25 | 24 | NS |
| History AF | 29 | 19 | p = 0.022 |
| History MI | |||
| Anterior MI | 41 | 48 | NS |
| Posterior MI | 18 | 24 | |
| COPD | 28 | 16 | p = 0.008 |
| OPA | 19 | 29 | NS |
| Unstable angina | 12 | 18 | NS |
| Obesity (BMI > 30) | 24 | 19 | NS |
| Hypertension | 72 | 79 | NS |
| Diseased vessels | |||
| CAD-1 | 8 | 11 | NS |
| CAD-2 | 26 | 30 | |
| CAD-3 | 123 | 147 | |
| LMCAD | 16 | 18 | |
| E.F | |||
| 0.30-0.40 | 32 | 21 | p = 0.015 |
| 0.40-0.55 | 25 | 39 | NS |
| > 0.55 | 100 | 131 | NS |
| Mild MR | 12 | 10 | NS |
| L.A dilation (> 40 mm) | 11 | 15 | |
| Proximal stenosis | |||
| Proximal LAD | 43 | 38 | NS |
| Proximal LCx | 55 | 59 | NS |
| Proximal RCA | 42 | 32 | p = 0.023 |
| Dyslipidemia | 85 | 104 | NS |
| Medical therapy | |||
| Nitrates | 137 | 159 | NS |
| Β-Blockers | 115 | 143 | |
| Ca++- blockers | 68 | 75 | |
| Anti-platelets | 131 | 153 | |
AF: atrial fibrillation, MI: myocardial infarction, COPD: chronic obstructive pulmonary disease, OPA: obstructive peripheral arteriopathy, BMI: body mass index, CAD: coronary artery disease, E.F: ejection fraction, MR: mitral regurgitation, L.A: left atrium, LAD: left anterior descending artery, LCx: circumflex artery, RCA: right coronary artery. NS: not statistically significant (p > 0.05)