Table 2.
Operative data.
| Variable | Valsalva (n = 270) | Two-graft (n = 62) | p value |
|---|---|---|---|
| Primary indication | 0.02 | ||
| Root aneurysm | 220 (81) | 42 (68) | |
| Acute type A aortic dissection | 50 (19) | 20 (32) | |
| Timing of operation | 0.12 | ||
| Elective | 210 (78) | 41 (66) | 0.05 |
| Urgent | 19 (7.0) | 5 (8.1) | 0.79 |
| Emergent/salvage | 41 (15) | 16 (26) | 0.05 |
| Concomitant procedure | |||
| CABG | 12 (4.5) | 2 (3.2) | 0.66 |
| Mitral valve surgery | 15 (5.6) | 4 (6.5) | 0.76 |
| Tricuspid valve surgery | 4 (1.5) | 2 (3.2) | 0.31 |
| Aortic valve repair | 41 (15) | 3 (4.8) | 0.03 |
| Ascending aorta procedure | 233 (86) | 49 (79) | 0.15 |
| Hemiarch replacement | 60 (22) | 8 (13) | 0.10 |
| Total arch replacement | 4 (1.5) | 2 (3.2) | 0.31 |
| Zone 1 replacement | 3 (1.1) | 7 (11) | <0.001 |
| Zone 2 replacement | 4 (1.5) | 6 (9.7) | 0.004 |
| Zone 3 replacement | 2 (0.7) | 2 (3.2) | 0.16 |
| CPB time | 255 (233, 284) | 284 (265, 346) | <0.001 |
| Cross-clamp time | 215 (195, 238) | 245 (228, 278) | <0.001 |
| PRBC (units) | 0.0 (0.0, 2.0) | 0.0 (0.0, 1.0) | 0.16 |
| Size of implant | |||
| Valsalva graft (mm) | 30 (30, 32) | ||
| Large graft (mm) | 34 (34, 34) | ||
| Plication of large graft (mm) | 29 (29, 30) | ||
| Small graft (mm) | 24 (24, 26) |
Data presented as median (interquartile range) for continuous variables and number (percentage) for categorical variables. Abbreviations: CABG, coronary artery bypass grafting; CPB, cardiopulmonary bypass; PRBC, packed red blood cells.