Table 2:
Intraoperative and postoperative data
| All patients (n = 58) | Survivors (n = 51) | Non-survivors (n = 7) | P | |
|---|---|---|---|---|
| Intraoperative data | ||||
| Isolated CABG | 15.5% (9) | 15.7% (8) | 14.3% (1) | 0.95 |
| Isolated valve surgery | 72.4% (42) | 72.50% (37) | 71.4% (5) | 0.97 |
| CABG + valve surgery | 12.1% (7) | 11.76% (6) | 14.3% (1) | 0.78 |
| Fluid balance during surgery (ml) | 1325 ± 850 | 1250 ± 980 | 1350 ± 785 | 0.58 |
| Aortic cross-clamping time (min) | 72 ± 44 | 74 ± 41 | 69 ± 50 | 0.85 |
| Cardiopulmonary bypass time (min) | 107 ± 37 | 106 ± 48 | 108 ± 53 | 0.35 |
| Postoperative data and major postoperative complications | ||||
| Ventilation time (days) | 5.3 ± 10.2 | 3.16 ± 7.7 | 21 ± 12 | 0.01 |
| PaO2/FiO2 on admission | 287 ± 95 | 293 ± 93 | 245 ± 110 | 0.28 |
| PaO2/FiO2 12 h after admission | 318 ± 86 | 327 ± 84 | 257 ± 78 | 0.04 |
| PaO2/FiO2 24 h after admission | 307 ± 75 | 315 ± 70 | 253 ± 96 | 0.23 |
| MAP on admission (mmHg) | 83 ± 15 | 85 ± 15 | 74 ± 18 | 0.72 |
| MAP 24 h after admission (mmHg) | 80 ± 10 | 80 ± 9 | 75 ± 11 | 0.51 |
| CVP on admission (mmHg) | 12 ± 3.6 | 11.4 ± 3 | 16.5 ± 4.4 | 0.02 |
| CVP 24 h after admission (mmHg) | 12.5 ± 3.6 | 12 ± 2.8 | 16.3 ± 6 | 0.002 |
| Need of vasoactive drugs (h) | 165 ± 197 | 112 ± 109 | 490 ± 304 | 0.016 |
| Low cardiac output syndrome | 31% (18) | 34% (17) | 14.3% (1) | 0.25 |
| Perioperative myocardial infarction | 7.1% (4) | 6.1% (3) | 14.3% (1) | 0.18 |
| Arterial lactate on admission (mmol l−1) | 2.6 ± 1.4 | 2.45 ± 1.3 | 3.6 ± 1.5 | 0.22 |
| Arterial lactate 24 h after admission (mmol l−1) | 1.9 ± 0.7 | 1.8 ± 0.5 | 2.5 ± 1.3 | 0.02 |
| Creatinine 24 h after surgery (mmol l−1) | 129 ± 108 | 118 ± 101 | 207 ± 138 | 0.15 |
| Urine output first 24 h (ml) | 1860 ± 650 | 1920 ± 570 | 1444 ± 1066 | 0.28 |
| Need for renal replacement therapy | 8.9% (5) | 2% (1) | 57.1% (4) | <0.0001 |
| Albumin (g l−1) | 27 ± 4 | 27.9 ± 4 | 27.8 ± 4.5 | 0.97 |
| International normalized ratio on admission | 1.8 ± 0.32 | 1.5 ± 0.24 | 2.2 ± 0.11 | <0.0001 |
| Drainage loss first 12 h (ml) | 464 ± 308 | 446 ± 299 | 595 ± 369 | 0.34 |
| Major bleeding | 1.7% (1) | 2% (1) | 0% | 0.85 |
| Re-exploration | 19% (11) | 21.6% (11) | 0% | 0.15 |
| Erythrocyte concentrates (units) | 3 ± 4.6 | 2 ± 30.4 | 8.5 ± 8 | <0.0001 |
CABG: coronary artery bypass graft; PaO2/FiO2: arterial partial pressure of O2 and fraction of inspired oxygen ratio; MAP: mean arterial pressure; CVP: central venous pressure. Results are expressed as mean ± standard deviation or percentage.