Table 3 Blood gas analysis pre ECMO and 1 day after ECMO initiation

Pre-ECMO

RF, n = 46

CS, n = 49

SS, n = 17

p value

 pH^a

7.25 (7.18–7.35)

7.11 (6.95–7.25)

7.21 (7.11–7.3)

< 0.01

 pCO2, mmHG

67 (54–83)

52 (42–68)

64 (53–84)

< 0.01

 BE, mmol/l

2 (− 5 to 8)

−14 (− 21 to − 5)

−4 (− 8 to − 1)

< 0.01

 Lactate, mg/dl

13 (8–26)

73 (34–114)

29 (13–62)

< 0.01

 pO2/FiO2^b

145 (99–233)

158 (83–254)

111 (77–147)

0.23

1 day after ECMO initiation

RF n = 48

CS n = 44

SS, n = 19

p value

 pH, mmHg

7.40 (7.35–7.46)

7.39 (7.34–7.44)

7.42 (7.38–7.49)

0.43

 pCO2, mmHg

48 (43–52)

42 (40–45)

47 (44–49)

< 0.01

 BE, mmol/l

6 (2 to 9)

1 (−1 to 3)

4 (2 to10)

< 0.01

 Lactate, mg/dl

13 (9–21)

22 (16–34)

17 (14–35)

< 0.01

 pO2/FiO2

199 (163–262)

278 (180–472)

168 (117–260)

< 0.01