Table 2:
Intraoperative and postoperative characteristics
| Characteristic | Overall | Non-ventilated, | Fully ventilated | Partially ventilated |
|---|---|---|---|---|
| N = 140a | N = 87a | N = 38a | N = 15a | |
| STAT | ||||
| 1 | 20 (14) | 13 (15) | 6 (16) | 1 (6.7) |
| 2 | 71 (51) | 40 (46) | 23 (61) | 8 (53) |
| 3 | 27 (19) | 17 (20) | 4 (11) | 6 (40) |
| 4 | 20 (14) | 15 (17) | 5 (13) | 0 (0) |
| 5 | 2 (1.4) | 2 (2.3) | 0 (0) | 0 (0) |
| Surgery time (min) | 210 (180, 245) | 220 (191, 240) | 198 (156, 245) | 225 (210, 252) |
| CPB time (min) | 114 (80, 138) | 122 (90, 138) | 86 (68, 115) | 121 (108, 154) |
| Aortic cross-clamp (min) | 57 (39, 78) | 60 (45, 82) | 44 (28, 67) | 65 (55, 96) |
| Temperature nadir (°C) | 32.0 (30.0, 33.1) | 32.0 (30.0, 32.5) | 33.0 (32.0, 34.0) | 29.5 (27.3, 32.5) |
| Hypothermia (min) | 70 (50, 96) | 70 (60, 98) | 56 (30, 80) | 100 (70, 110) |
| Rewarming (min) | 25 (20, 30) | 30 (20, 30) | 20 (15, 30) | 26 (20, 30) |
| DHCA | 3 (2.2) | 2 (2.3) | 1 (2.6) | 0 (0) |
| CPB pH | 7.40 (7.36, 7.44) | 7.39 (7.37, 7.42) | 7.40 (7.36, 7.44) | 7.42 (7.37, 7.47) |
| CPB lactates (mmol/l) | 1.88 (1.50, 2.50) | 1.88 (1.50, 2.78) | 1.90 (1.46, 2.28) | 1.79 (1.49, 2.65) |
| CPB pCO2 | 34.3 (30.4, 37.1) | 34.7 (31.0, 36.9) | 34.3 (29.1, 37.9) | 33.2 (28.9, 35.2) |
| CPB pO2 | 169 (144, 197) | 168 (145, 194) | 170 (130, 198) | 169 (150, 197) |
| Post-surgery PaO2/FiO2 | 174 (90, 332) | 168 (85, 296) | 174 (106, 416) | 241 (102, 356) |
| Post-surgery TA MPO (mU/ml) | 844 (322, 2113) | 1113 (440, 2671) | 714 (266, 1890) | 693 (240, 1089) |
| Post-surgery TA albumin (mg/ml) | 10 (7, 14) | 10 (6, 14) | 10 (8, 15) | 12 (10, 24) |
| Post-surgery mechanical ventilation (h) | 36 (27, 73) | 34 (28, 76) | 30 (11, 54) | 54 (32, 74) |
| Post-surgery mechanical ventilation >48 h | 65 (46) | 40 (46) | 16 (42) | 9 (60) |
| ICU stay (days) | 2.66 (1.65, 4.66) | 3.65 (1.65, 4.67) | 2.65 (1.65, 3.65) | 3.65 (2.66, 5.39) |
| Length of stay (days) | 8.7 (6.6, 13.2) | 8.6 (6.6, 12.7) | 9.6 (6.6, 13.6) | 7.6 (6.7, 11.7) |
Unknown: missing data. Continuous variables are expressed as median (interquartile range). A full table with missing data description is available as Supplementary Material, Table S2.
a
n (%) and median (IQR).
CPB: cardiopulmonary bypass; DHCA: deep hypothermic cardiac arrest; ICU: intensive care unit; IQR: interquartile range; MPO: myeloperoxydase activity; STAT: The Society of Thoracic Surgeons-European Association for Cardio-Thoracic Surgery score; TA: tracheal aspirates.