Table 1:
Preoperative characteristics
| Characteristic | Overall | Non-ventilated | Fully ventilated | Partially ventilated |
|---|---|---|---|---|
| N = 140a | N = 87a | N = 38a | N = 15a | |
| Age (months) | 4.1 (2.1, 8.3) | 3.7 (1.7, 7.0) | 6.2 (3.2, 36.8) | 3.9 (0.3, 5.2) |
| Sex (male) | 66 (47) | 40 (46) | 18 (47) | 8 (53) |
| Weight (kg) | 5.3 (3.9, 7.1) | 5.0 (3.8, 6.8) | 6.6 (4.7, 12.0) | 4.8 (3.5, 6.1) |
| Neonates | 29 (21) | 19 (22) | 4 (11) | 6 (40) |
| CHD type | ||||
| TGA | 26 (19) | 15 (17) | 5 (13) | 6 (40) |
| TOF/DORV TOF like | 36 (26) | 29 (33) | 3 (7.9) | 4 (27) |
| VSD (large or multiple) | 58 (41) | 32 (37) | 21 (55) | 5 (33) |
| HLHS | 4 (2.9) | 3 (3.4) | 1 (2.6) | 0 (0) |
| Single ventricle | 11 (7.9) | 5 (5.7) | 6 (16) | 0 (0) |
| TAPVR | 5 (3.6) | 3 (3.4) | 2 (5.3) | 0 (0) |
| Pre-op. pCO2 (mmHg) | 33 (28, 39) | 33 (27, 38) | 34 (30, 40) | 32 (30, 42) |
| Pre-op. pO2 (mmHg) | 92 (56, 182) | 91 (56, 168) | 108 (58, 189) | 58 (52, 136) |
| Pre-op. oxygen saturation (%) | 96 (87, 99) | 97 (87, 99) | 98 (90, 100) | 94 (87, 100) |
| Pre-op. PaO2/FiO2 | 438 (267, 869) | 435 (265, 802) | 515 (276, 901) | 278 (248, 647) |
| Pre-op. TA MPO (mU/ml) | 284 (78, 854) | 359 (64, 1048) | 273 (89, 792) | 131 (72, 154) |
| Pre-op. TA albumin (mg/ml) | 10 (6, 16) | 9 (5, 15) | 13 (8, 16) | 10 (7, 17) |
Unknown: missing data. Continuous variables are expressed as median (interquartile range). A full table with missing data description is available as Supplementary Material, Table S1.
a
Median (IQR) and n (%).
CHD: congenital heart disease; DORV: double-outlet right ventricle; IQR: interquartile range; MPO: myeloperoxydase activity; TA: tracheal aspirate; TAPVR: total anomalous pulmonary venous return; TGA: transposition of the great arteries; TOF: tetralogy of Fallot; VSD: ventricular septal defect; HLHS: hypoplastic left heart syndrome; EDTA: Ethylenediaminetetraacetic acid.