Table 4.
Blood gases during the study protocol
| Variable | NAVA | PSV | p value |
|---|---|---|---|
| pH | 7.37 (7.36–7.41) | 7.37 (7.36–7.40) | 0.481 |
| PaO2 | 88 (69–96) | 80 (66–96) | 0.045 |
| P/F | 241 (203–265) | 236 (144–260) | 0.050 |
| PaCO2 | 39 (36–44) | 40 (37–45) | 0.290 |
| HCO3 | 23 (21–24) | 23 (21–25) | 0.575 |
| BE | − 1.1 (− 2.7 to 0.1) | − 0.1 (− 3.7 to 0.4) | 0.906 |
| SaO2 | 95 (92–97) | 96 (92–96) | 0.861 |
pH hydrogen potential, PaO2 arterial oxygen pressure, P/F ratio of arterial oxygen pressure divided by the fraction of inspired oxygen, PaCO2 arterial pressure of carbon dioxide, HCO3 bicarbonate, BE base excess, SaO2 oxygen saturation
Data presented as median and 25–75% interquartile range. p value obtained by Wilcoxon signed-rank test