Table 1 Respiratory and blood gas-exchange parameters at Baseline and End
| Â | Â | SAL | PA | ||
|---|---|---|---|---|---|
Parameter | Â | VCV | VV | VCV | VV |
Mean VT (mL/kg) | Baseline | 5.8 ± 0.3 | 6.0 ± 0.1 | 6.0 ± 0.3 | 5.9 ± 0.4 |
End | 5.9 ± 0.6 | 6.2 ± 0.3 | 6.0 ± 0.3 | 6.2 ± 0.4 | |
CV of VT (%) | Baseline | 2.5 ± 0.8 | 2.3 ± 0.4 | 1.9 ± 0.9 | 1.9 ± 0.8 |
End | 1.7 ± 1.0 | 26.5 ± 1.8**** | 1.7 ± 0.8 | 26.6 ± 1.2 #### | |
E,L (cmH2O/mL) | Baseline | 3.6 ± 0.5 | 4.2 ± 0.9 | 3.9 ± 0.6 | 4.6 ± 0.7 |
End | 4.1 ± 0.5 | 2.5 ± 0.3**** | 3.8 ± 0.5 | 2.7 ± 0.2 ## | |
R,L (cmH2O/mL/s) | Baseline | 0.19 ± 0.03 | 0.18 ± 0.03 | 0.30 ± 0.07** | 0.31 ± 0.10 |
End | 0.19 ± 003 | 0.16 ± 0.01 | 0.25 ± 0.07 | 0.27 ± 0.10 | |
pHa | Baseline | 7.4 ± 0.1 | 7.4 ± 0.0 | 7.3 ± 0.1 | 7.3 ± 0.1 |
End | 7.4 ± 0.1 | 7.4 ± 0.0 | 7.4 ± 0.1 | 7.4 ± 0.0 | |
PaO2/FiO2 | Baseline | 372 ± 126 | 311 ± 83 | 260 ± 59 | 285 ± 80 |
End | 292 ± 78 | 449 ± 50** | 302 ± 117 | 454 ± 59## | |
PaCO2 (mmHg) | Baseline | 40.2 ± 8.0 | 39.6 ± 6.0 | 40.2 ± 4.9 | 42.9 ± 11.1 |
End | 36.4 ± 10.1 | 33.9 ± 7.3 | 37.2 ± 4.8 | 36.5 ± 8.8 | |
HCO3 (mEq/L) | Baseline | 23.7 ± 3.1 | 24.0 ± 2.5 | 20.8 ± 3.2 | 20.8 ± 3.2 |
End | 18.9 ± 4.4 | 20.0 ± 4.4 | 21.5 ± 2.6 | 21.5 ± 2.6 | |
MAP (mmHg) | Baseline | 109 ± 24 | 99 ± 12 | 96 ± 34 | 110 ± 27 |
End | 99 ± 15 | 110 ± 22 | 97 ± 28 | 112 ± 28 | |