Table 2.
Trend of respiratory, blood-gas-derived, hemodynamic, and metabolic indexes at the three considered times (PICU admission, before surgery, after surgery) in the 55 patients stabilized and submitted to surgery, divided into two groups according to the duration of preoperative stabilization stage (≤24 hours or >24 hours).
| PICU admission | Before surgery | After surgery | P | ||||
|---|---|---|---|---|---|---|---|
| Indexes | ≤24 h | >24 h | ≤24 h | >24 h | ≤24 h | >24 h | |
| OI | 12.4 ± 12.7 | 15.0 ± 10.5 | 5.6 ± 7.6 | 6.0 ± 4.9 | 4.5 ± 6.6 | 9.5 ± 8.9 | ns |
| A-aDO2 (mmHg) | 354 ± 158 | 369 ± 167 | 169 ± 122 | 207 ± 105 | 151 ± 110 | 220 ± 118 | 0.039 |
| a/AO2 | 0.28 ± 0.20 | 0.23 ± 0.18 | 0.54 ± 0.19 | 0.45 ± 0.25 | 0.56 ± 0.19 | 0.41 ± 0.23 | 0.047 |
| paCO2 (mmHg) | 46.7 ± 4.7 | 61.4 ± 6.3 | 37.4 ± 1.4 | 39.5 ± 1.9 | 36.6 ± 1.7 | 45.0 ± 2.3 | 0.015 |
| pH | 7.29 ± 0.19 | 7.25 ± 0.21 | 7.41 ± 0.12 | 7.44 ± 0.09 | 7.43 ± 0.12 | 7.42 ± 0.15 | ns |
| PAM (mmHg) | 41.5 ± 8.1 | 39.7 ± 8.7 | 42.3 ± 9.3 | 38.9 ± 7.7 | 42.1 ± 6.8 | 37.4 ± 6.7 | ns |
| Urine output (mL/h) | 1.65 ± 0.84 | 1.19 ± 0.78 | 2.14 ± 0.77 | 1.83 ± 0.65 | 1.96 ± 0.91 | 1.52 ± 0.76 | 0.048 |
| Lactate (mmol/L) | 1.8 ± 0.4 | 2.1 ± 0.7 | 1.2 ± 0.5 | 1.5 ± 0.4 | 1.4 ± 0.6 | 1.9 ± 0.9 | ns |
| No R-L shunt | 26/33 (79%) | 4/22 (19%) | 33/33 (100%) | 22/22 (100%) | 33/33 (100%) | 20/22 (90%) | ns |