Table 1 Clinical characteristics of study population
SR Group n = 245 | AF Group n = 151 | P valve | |
|---|---|---|---|
Gender, M/F (n) | 132/113 | 88/63 | 0.392 |
Age (yrs) | 55.7 ± 10.5 | 57.3 ± 7.8 | 0.096 |
AF duration (mhs) | 33.1 ± 25.5 | 69.0 ± 67.7 | <0.001 |
Rheumatic valvular disease (n) | 183 | 108 | 0.488 |
Cerebral infarction (n) | 26 | 12 | 0.382 |
Hypertension (n) | 31 | 34 | 0.010 |
Diabetes (n) | 22 | 5 | 0.030 |
Left atrial thrombosis (n) | 29 | 39 | <0.001 |
NYHA class (I-II/III-IV) | 99/146 | 42/109 | 0.011 |
Pre-op BNP (pg/ml) | 202.7 ± 124.7 | 367.5 ± 295.7 | <0.001 |
Pre-op heart rate (bpm) | 95 ± 19 | 75 ± 12 | <0.001 |
Pre-op LAD (mm) | 57.0 ± 8.6 | 61.4 ± 12.0 | <0.001 |
Pre-op LVEF (%) | 50.8 ± 6.8 | 49.5 ± 6.2 | 0.063 |
Redo-procedure (n) | 7 | 22 | <0.001 |
Combined tricuspid valve annuloplasty (n) | 243 | 149 | 0.623 |
Combined coronary artery bypass grafting (n) | 25 | 8 | 0.086 |
Cardiopulmonary bypass duration (min) | 168 ± 44 | 169 ± 44 | 0.815 |
Aortic clamp time (min) | 133 ± 39 | 130 ± 40 | 0.364 |
Duration of ventilation (hrs) | 22.4 ± 19.4 | 34.5 ± 56.0 | 0.011 |
Intensive care unit stay (dys) | 4.6 ± 2.1 | 5.0 ± 2.1 | 0.058 |
Post-op atrial tachyarrhythmias (n) | 89 | 129 | <0.001 |
AF at discharge (n) | 57 | 123 | <0.001 |
Post-op amiodarone (n) | 79 | 41 | 0.284 |
Post-op metoprolol (n) | 151 | 84 | 0.237 |
Electronic cardioversion within 6 months (n) | 29 | 37 | 0.001 |