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Table 1 Respiratory variables at baseline and after the induction of lung injury

From: Moderately high frequency ventilation with a conventional ventilator allows reduction of tidal volume without increasing mean airway pressure

Variable Baseline After lung injury
P/ F ratio (mmHg) 427 [368,473] 97 [67,130]*
Shunt (%) 13 [12,15] 23 [16,32]*
Tidal volume (sternal) 4.8 [3.7,5.9] 4 [4.5,3.5]
Tidal volume (ventral) 4.2 [3.0,5.4] 2.5 [2,3]
Cstatic (mL/cmH2O) 27 [15,30] 12 [9,14]
Resistance (cmH2O/L/s) 8 [7,10] 18 [14,26]*
  1. Values are presented as median [P25th,P75th] Cstatic and P/F denote static compliance and the ratio of arterial oxygen concentration to the fraction of inspired oxygen, respectively. *p < 0.05 vs baseline, Wilcoxon’s signed rank test.