Table 2.
Perioperative Details
| Variablesa | CMIV (n = 101) |
CMIV + MV (n = 99) |
p Value |
|---|---|---|---|
| Operative | |||
| Aortic cross-clamp time, min | 40 ± 13 | 92 ± 26 | <0.001 |
| Cardiopulmonary bypass, min | 135 ± 29 | 166 ± 34 | <0.001 |
| Right thoracotomy approach | 19 (19) | 10 (10) | 0.08 |
| Box lesion set | 79 (78) | 81 (82) | 0.6 |
| Postoperative | |||
| Operative deaths (<30 days) | 1 (1) | 4 (4) | 0.21 |
| Stroke | 1 (1) | 1 (1) | 1.0 |
| Reoperation for bleeding | 0 (0) | 5 (5) | 0.03 |
| Need for IABP | 1 (1) | 5 (4) | 0.17 |
| Renal failure requiring dialysis | 0 (0) | 5 (5) | 0.03 |
| Pneumonia | 6 (6) | 11 (11) | 0.21 |
| Mediastinitis | 1 (1) | 0 | 1.0 |
| Length of stay, days | 7 (6–10) | 10 (7–13) | 0.02 |
| Early atrial tachyarrhythmias | 41 (41) | 57 (57) | 0.03 |
| Permanent PM (<90 days) | 7 (7) | 10 (11) | 0.45 |
a
Continuous data are presented as mean ± standard deviation or median (range), and categoric data are presented as number (%).
CMIV = Cox-Maze IV; IABP = intraaortic balloon pump; MV = mitral valve; PM = pacemaker.