Parameter | Control | Impaired |
P
|
|---|
Number | 17 | 13 | - |
Age (years ± SD) | 65 ± 17 | 53 ± 13 | <0.015 |
Sex (m/f) | 11/6 | 8/5 | NS |
BSA (m2) | 1.90 ± 0.20 | 1.91 ± 0.14 | NS |
PaO2/FiO2 (kPa/fraction) | 38 ± 9 | 23 ± 9 | <0.011 |
Crs (ml/cmH2O) | 74 ± 14 | 34 ± 10 | <0.001 |
Raw [cmH2O·s/l) | 0.9 ± 0.4 | 1.2 ± 0.5 | NS |
Intrinsic PEEP (cmH2O) | 0.1± 0.11 | 0.1 ± 0.2 | NS |
- Shown are the baseline characteristics of patients without (control) and those with impaired respiratory system mechanics (impaired) according to compliance below or above 50 mL/1 cmH2O at the time of study entrance (post hoc analysis). BSA, body surface area; Crs, compliance of the respiratory system; FiO2, fractional inspired oxygen; Intrinsic PEEP, intrinsic positive end-expiratory pressure (in addition to external applied PEEP); PaO2, arterial oxygen tension; Raw, airway resistance (not included the resistance of the endotracheal tube).
