Table 2.
Arterial blood gas and ventilation parameters by mode of ventilation
| Mode of Ventilation | VC | PC | PCV-VG |
|---|---|---|---|
| PIP (cmH2O) | 36.5 ± 5.0 | 31.6 ± 5.5+ | 30.6 ± 3.4* |
| PaO2 (mmHg) | 161 ± 45 | 169 ± 47 | 166 ± 52 |
| pH | 7.32 ± 0.04 | 7.33 ± 0.05 | 7.34 ± 0.03 |
| PaCO2 (mmHg) | 40.9 ± 3.3 | 40.2 ± 3.7 | 38.8 ± 4.1 |
| Respiratory rate (breaths/minute) | 9.2 ± 2.1 | 9.4 ± 2.2 | 9.2 ± 2.1 |
| Exhaled tidal volume (mL) | 760 ± 124 | 737 ± 135 | 750 ± 121 |
VC = volume-controlled; PC = pressure-controlled; PCV-VG = pressure-controlled ventilation, volume guaranteed. The data are listed as the mean ± SD.
*
p < 0.001 for PCV-VG vs. VC;
+
p < 0.01 for PC vs. VC.