Table 1.
Respiratory parameters.
| Variable | PEEP 12 | PEEP 9 | PEEP 6 | PEEP 3 | ZEEP |
|---|---|---|---|---|---|
| VT (ml) | 28.8 ± 10.7 | 29.9 ± 10 | 30.1 ± 9.9 | 31.5 ± 12.8 | 31.8 ± 11.8 |
| PEEP (cmH2O) | 12.3 ± 0.5 | 9.5 ± 0.6 | 6.9 ± 0.8 | 4 ± 0.9 | 1.2 ± 0.4 |
| Ppeakrs (cmH2O) | 32.7 ± 6.2 | 23.4 ± 2.4 | 18.3 ± 1.8 | 16.5 ± 3.7 | 14.2 ± 2.7 |
| Pplatrs (cmH2O) | 31.4 ± 6.5 | 18.7 ± 1.9 | 16.6 ± 0.3 | 13.03 ± 1 | 13.3 ± 2.3 |
| Driving pressure (cmH2O) | 20.4 ± 6 | 13.9 ± 2 | 11.4 ± 1.6 | 12.5 ± 3 | 13 ± 2.6 |
| Crs (ml/cmH2O) | 1.5 ± 0.5 | 2.1 ± 0.5 | 2.6 ± 0.5 | 2.5 ± 0.5 | 2.4 ± 0.6 |
Ventilatory data recorded during the protocol at the different levels of PEEP. Data are expressed as mean ± SD.