Table 1.
Main characteristics of the study population at enrollment
| Patient’s characteristics | Overall population, n 21 |
|---|---|
| Age, years | 64.8 ± 14.0 |
| Sex, n° male (%) | 13 (62) |
| Height, cm | 170 ± 12 |
| Weight, kg | 70.6 ± 14.9 |
| BMI, kg/m2 | 24.2 ± 4.3 |
| PEEP, cmH2O | 6.6 ± 2.2 |
| Airway plateau pressure, cmH2O | 17.2 ± 4.9 |
| PaO2/FiO2 | 319.4 ± 117.3 |
| FiO2 | 0.4 ± 0.1 |
| PaCO2 mmHg | 40.7 ± 6.2 |
| ElastanceRS, cmH2O/L | 19.0 ± 6.5 |
| SAPS II | 36.2 ± 15.3 |
| Diagnosis, n° (%) | |
| Abdominal surgery | 7 (34) |
| Urologic surgery | 4 (19) |
| Vascular surgery | 3 (14) |
| Postanoxic coma | 3 (14) |
| Other | 4 (19) |
Data are presented as mean ± standard deviation unless indicated otherwise
BMI body mass index, PEEP positive end-expiratory pressure, PaO 2 arterial partial pressure of oxygen, PaCO 2 arterial partial pressure of carbon dioxide, PaO 2 /FiO 2 the ratio of arterial oxygen partial pressure to fractional inspired oxygen, FiO 2 fractional inspired oxygen, SAPS Simplified Acute Physiology Score, Elastance RS elastance of respiratory system, n° number