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Table 4 Blood gases during the study protocol

From: Neurally adjusted ventilatory assist vs. pressure support to deliver protective mechanical ventilation in patients with acute respiratory distress syndrome: a randomized crossover trial

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
  1. 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
  2. Data presented as median and 25–75% interquartile range. p value obtained by Wilcoxon signed-rank test