Table 5.
Operative Conduct and perioperative events by operation received in 91 patients with moderate-severe MR who received CABG with versus without Mitral Valve Repair.
| Surgical Data | CABG Only (N=42) |
CABG+MV Repair (N=49) |
P Value |
|---|---|---|---|
| Number of distal anastomoses, median (25th, 75th) | 3 (2, 4) | 3 (3, 4) | 0.540 |
| Number of distal anastomoses, no. (%) | |||
| 1 | 6 (14) | 4 (8) | 0.540 |
| 2 | 7 (17) | 7 (14) | |
| 3 | 14 (33) | 21 (43) | |
| 4 | 11 (26) | 10 (20) | |
| 5 | 4 (10) | 7 (14) | |
| Arterial conduits ≥1, no. (%) | 36 (86) | 44 (90) | 0.552 |
| Types of procedures on mitral valve, no. (%) | |||
| Repair | 0 | 48 (98) | |
| Bioprosthesis | 0 | 1 (2) | |
| Off-pump, no. (%) | 17 (40) | 0 | |
| Cardioplegia, no. (%) | <0.001 | ||
| None | 23 (55) | 1 (2) | |
| Crystalloid | 4 (10) | 9 (18) | |
| Blood | 15 (36) | 38 (78) | |
| Both | 0 | 1 (2) | |
| Time on aorta cross-clamp, median (25th, 75th), min | 55 (47, 77) | 94 (69, 118) | <0.001 |
| Time on bypass pump, median (25th, 75th), min | 102 (84, 118) | 140 (110, 177) | 0.002 |
| Total time in OR, median (25th, 75th), hrs.) | 4.9 (4.0, 5.9) | 5.8 (4.8, 6.4) | 0.025 |
| Total intubation time, median (25th, 75th), hrs. | 19.5 (12.8, 22.8) | 22.4 (16.3, 31.0) | 0.014 |
| Total time in CCU/ICU, median (25th, 75th), hrs. | 67.0 (44.2, 109.8) | 102.7 (68.1, 188.8) | 0·001 |
| Length of hospital stay after surgery, median (25th, 75th), days | 8.0 (7.0, 11.0) | 11.0 (8.0, 17.0) | 0.011 |
| Hospital stay longer than 30 days after surgery, no. (%) | 1 (2) | 5 (10) | 0.214 |
| Inotropes for low CO, no. (%) | 14 (33) | 33 (67) | 0.001 |
| Intraaortic balloon pump, no. (%) | 8 (19) | 16 (33) | 0.142 |
| Mediastinitis, no. (%) | 2 (5) | 1 (2) | 0.593 |
| Other infection, no. (%)* | 0 | 10 (20) | 0.002 |
| Death within 30 days after surgery, no. (%) | 6 (14.3) | 1 (2.0) | 0.046 |
*
Refers to all other types of major postoperative infections (except mediastinitis), such as pneumonia, pyelonephritis, septicemia, and infections at the vein-harvest site.
Abbreviations: CABG, coronary artery bypass grafting; CCU, cardiac care unit; CO, cardiac output; ICU, intensive care unit; MV, mitral valve; OR, operating room.