Table 2.
Intra-operative variables
| Overall n = 6,109 |
Survivors n = 5,510 |
Non-survivors n = 599 |
p-value | |
|---|---|---|---|---|
| Concomitant procedures | < 0.001 | |||
| Isolated | 3,996 (65%) | 3,662 (66%) | 334 (56%) | |
| One-additional procedure | 1,884 (31%) | 1,671 (30%) | 213 (36%) | |
| Two-additional procedures | 202 (3.3%) | 156 (2.8%) | 46 (7.7%) | |
| Three-additional procedures | 27 (0.4%) | 21 (0.4%) | 6 (1.0%) | |
| Median Sternotomy | 6,093 (99.7%) | 5,495 (99.7%) | 598 (99.8%) | 0.6 |
| Partial Sternotomy | 8 (0.1%) | 8 (0.1%) | 0 (0%) | > 0.9 |
| Mini Thoracotomy | 1 (< 0.1%) | 1 (< 0.1%) | 0 (0%) | > 0.9 |
| Other Incision | 7 (0.1%) | 6 (0.1%) | 1 (0.2%) | 0.5 |
| Type of explanted aortic valve | 0.045 | |||
| Mechanical | 1,641 (27%) | 1,452 (26%) | 189 (32%) | |
| Biological | 4,125 (68%) | 3,745 (68%) | 380 (63%) | |
| Homograft | 300 (4.9%) | 272 (4.9%) | 28 (4.7%) | |
| Autograft | 43 (0.7%) | 41 (0.7%) | 2 (0.3%) | |
| Type of Implanted aortic valve | < 0.001 | |||
| Mechanical | 1,692 (28%) | 1,543 (28%) | 149 (25%) | |
| Biological | 3,908 (64%) | 3,551 (64%) | 357 (60%) | |
| Homograft | 285 (4.8%) | 213 (4.0%) | 72 (12%) | |
| Concomitant CABG | 1,570 (26%) | 1,377 (25%) | 193 (32%) | < 0.001 |
| Number of Valves replaced | < 0.001 | |||
| Single Valve | 5,253 (85.9%) | 4,808 (87.2%) | 445 (74%) | |
| Double Valve | 636 (11%) | 519 (9.6%) | 117 (20%) | |
| Triple valve | 92 (1.5%) | 67 (1.2%) | 25 (4.3%) | |
| Aortic valve pathology | < 0.001 | |||
| Stenosis | 2,421 (39.6%) | 2,279 (41.3%) | 142 (23.7%) | |
| Regurgitation | 2,349 (38.5%) | 2,046 (37%) | 303 (50.5%) | |
| Mixed | 1,017 (16.7%) | 921 (16.7%) | 96 (16%) | |
| CPB (minutes) | 127 (94, 182) | 123 (92, 170) | 223 (151, 317) | < 0.001 |
| Cross-Clamp time (minutes) | 90 (67, 127) | 88 (66, 121) | 127 (90, 181) | < 0.001 |
CABG Coronary Artery Bypass Grafting, CPB Cardiopulmonary Bypass