Table 3 The serial changes of pressure settings of mechanical ventilation and index of arterial oxygenation during and after removal of venovenous extracorporeal membrane oxygenation

 P_aO₂/F_iO₂ (mmHg)

226 ± 85*

206 ± 89

216 ± 94

 Peak inspiratory pressure (cmH₂O)

30 ± 5

30 ± 5

24 ± 13

 Mean airway pressure (cmH₂O)

17 ± 3

17 ± 4

17 ± 4

 PEEP (cmH2O)

12 (10–14)

10 (10–12)

12 (10–12)

 Dynamic driving pressure^a (cmH2O)

18 ± 6

19 ± 5

19 ± 6

 Measured tidal volume (ml/kg)

7 ± 1

8 ± 2

7 ± 4

 Dynamic compliance^b (ml/cmH₂O)

24 ± 9*

28 ± 12

22 ± 15

 Oxygen index^c

8 ± 4*

10 ± 6

10 ± 6

 ECMO outflow PaO₂ (mmHg)

391 (338–449)

50 (38–133)

–

 ECMO outflow PaCO₂ (mmHg)

35 (28–40)

40 (36–59)

–

 ECMO outflow O₂ saturation (%)

100

100

–

Non-Survivors (n = 56)

–

 P_aO₂/F_iO₂ (mmHg)

164 ± 84*

–

–

 Peak inspiratory pressure (cmH₂O)

32 ± 5

–

–

 Mean airway pressure (cmH₂O)

18 ± 4

–

–

 PEEP (cmH2O)

13 ± 3

–

–

 Dynamic driving pressure^a (cmH2O)

19 ± 6

–

–

 Measured tidal volume (ml/kg)

6 ± 3

–

–

 Dynamic compliance^b (ml/cmH₂O)

19 ± 10*

–

–

 Oxygen index^c

14 ± 7*

–

–

 ECMO outflow PaO₂ (mmHg)

408 ± 79

–

–

 ECMO outflow PaCO₂ (mmHg)

36 ± 6

–

–

 ECMO outflow O₂ saturation (%)

100

–

–