Table 2.
Gas exchange and hemodynamics parameters
| Pre-recruitment maneuver | Post-recruitment maneuver | P-value | fractional change (%) | |
| PaO2 (mmHg) | 71 ± 21 | 94 ± 28 | 0.017 | 33.0 ± 23 |
| PaCO2 (mmHg) | 81 ± 20 | 81 ± 19 | 0.575 | - |
| PvO2 (mmHg) | 45 ± 10 | 49 ± 10 | 0.093 | - |
| QVA/QT (%) | 50.2 ± 9.9 | 39.3 ± 8.6 | 0.036 | -20.8 ± 16 |
| VD/VT (%) | 84 ± 2.9 | 83.7 ± 3.4 | 0.31 | - |
| HR (min-1) | 85 ± 84 | 77 ± 21 | 0.025 | -11.3 ± 9 |
| MAP (mmHg) | 80 ± 15 | 83 ± 24 | 0.498 | - |
| QT (l min-1) | 3.7 ± 0.2 | 3.4 ± 0.2 | 0.018 | -9.6 ± 6 |
| VO2 (ml min-1) | 138 ± 39 | 141 ± 35 | 0.889 | - |
| DO2 (ml min-1) | 401 ± 118 | 412 ± 101 | 0.575 | - |
| EVLWI (ml kg-1) | 20.6 ± 7.9 | 21.1 ± 9.6 | 0.499 | - |
Data are reported as mean ± SD. DO2, oxygen delivery; EVLWI, extravascular lung water index; HR, heart rate; MAP, mean arterial pressure; PaCO2, arterial carbon dioxide partial pressure; PaO2, arterial partial oxygen pressure; 
, mixed venous partial oxygen pressure; QT, cardiac output; QVA/QT, venous admixture; VD/VT, dead space fraction; VO2, oxygen consumption.