Table 2.
Baseline physiological variables of the 42 patients with acute lung injury
| Baseline physiological variables | Value |
|---|---|
| APACHE II | 21 ± 7 |
| SAPS II | 45 ± 14 |
| Lung injury score | 2.67 ± 0.7 |
| Oxygenation index | 10.8 ± 7 |
| PaO2/FiO2 | 177 ± 80 |
| Compliance (ml/cmH2O) | 35 ± 9 |
| Plateau pressure (cmH2O) | 23 ± 4 |
| Peak inspiratory pressure (cmH2O) | 27 ± 5 |
| Mean airway pressure (cmH2O) | 15 ± 4 |
| Positive end-expiratory pressure (cmH2O) | 9.7 ± 3.6 |
| Tidal volume (ml) | 441 ± 99 |
| Tidal volume per kg IBW (ml/kg) | 7 ± 1.3 |
| Dead space fraction | 0.56 ± 0.1 |
APACHE II = acute physiology and chronic health evaluation; SAPS II = simplified acute physiology score; PaO2/FiO2 = ratio of the partial pressure of arterial oxygen and the fraction of the inspired oxygen; IBW = ideal body weight
Data are means ± standard deviations