Table 2.
Respiratory mechanics across the different timepoints of the study
| Supine ZEEP | Supine PEEP 5 | Supine PEEP 10 | Prone ZEEP | Prone PEEP 5 | Prone PEEP 10 | |
|---|---|---|---|---|---|---|
| PIP, cmH2O | 16 (14–17) | 20 (18–21) | 25 (22–26) | 17(14–19) | 21 (19–23) | 26 (24–28) |
| PPLAT, cmH2O | 10 (8.5–11) | 14 (12.5–15) | 18 (17–20) | 10 (9–13) | 15 (14–17) | 20 (19–21) |
| ΔP, cmH2O | 10 (8–11) | 9 (7.5–10) | 8 (7–10) | 10 (9–13) | 10 (9–12) | 10 (9–11) |
| Crs, ml/cmH2O/kg | 0.85 (0.68–0.97) | 0.92 (0.73–1.09) | 0.95 (0.75–1.18) | 0.76 (0.60–0.86) | 0.77 (0.65–0.92) | 0.82 (0.66–0.96) |
| Cdyn, ml/cmH2O/kg | 0.50 (0.44–0.61) | 0.55 (0.46–0.64) | 0.57 (0.46–0.63) | 0.48 (0.40–0.56) | 0.50 (0.41–0.59) | 0.51 (0.43–0.60) |
| FiO2 | 0.4 (0.4–0.4) | 0.4 (0.4–0.4) | 0.4 (0.4–0.4) | 0.4 (0.4–0.4) | 0.4 (0.4–0.4) | 0.4 (0.4–0.4) |
Cdyn dynamic respiratory system compliance, Crs static respiratory system compliance, PEEP positive end-expiratory pressure, PIP peak inspiratory pressure, PPLAT plateau pressure. ZEEP zero end-expiratory pressure, ΔP driving pressure