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Table 3 Gas exchange and hemodynamic parameters before, during and after extracorporeal support

From: A new miniaturized system for extracorporeal membrane oxygenation in adult respiratory failure

  Pre ECMO 2 Hours Day 1 Day 2 End of ECMO, Survivors End of ECMO,
Non-Survivors
Day 1 after ECMO
PaO 2 /FiO 2 (mm Hg) 64
(48 to 86)
120 **
(84 to 171)
125 **
(108 to 160)
148 **
(108 to 191)
218 **
(181 to 290)
174 **
(136 to 193)
194 **
(144 to 245)
PaCO 2 (mm Hg) 63
(50 to 80)
33 **
(29 to 39)
36 **
(31 to 41)
37 **
(32 to 40)
40 **
(35 to 46)
35 **
(27 to 42)
44 **
(36 to 49)
pH 7.20
(7.13 to 7.30)
7.42 **
(7.34 to 7.49)
7.43 **
(7.37 to 7.49)
7.44 **
(7.38 to 7.50)
7.43 **
(7.39 to 7.45)
7.31 *
(7.21 to 7.41)
7.41 **
(7.32 to 7.47)
MAP (mm Hg) 67
(59 to 76)
77 **
(69 to 86)
72 *
(66 to 79)
76 **
(70 to 87)
80 *
(71 to 90)
65
(55 to 72)
80 *
(70 to 86)
Norepinephrine (μg/kg/min) 0.35
(0.15 to 0.84)
0.28 **
(0.12 to 0.55)
0.15 **
(0.04 to 0.29)
0.10 **
(0.04 to 0.24)
0.00 **
(0.00 to 0.05)
0.27
(0.06 to 0.67)
0.00 **
(0.00 to 0.07)
O 2 transfer ECMO
(mL/min)
  155
(116 to 182)
157
(128 to 178)
160
(129 to 195)
80 **
(74 to 93)
111
(99 to 160)
 
CO 2 transfer ECMO
(mL/min)
  210
(164 to 251)
193 *
(164 to 218)
195
(158 to 232)
116 **
(96 to 150)
170
(136 to 225)
 
ECMO flow (L/min)   2.7
(2.5 to 3.0)
2.8
(2.5 to 3.1)
2.9 *
(2.5 to 3.2)
1.6 **
(1.5 to 1.8)
2.0 *
(1.8 to 3.0)
 
  1. The measurement at the end of extracorporeal support is separated in survivors and non-survivors (to discharge).
  2. Data are presented as median (interquartile range). * P < 0.05, ** P < 0.001 to first measurement. (ECMO = extracorporeal membrane oxygenation, MAP = mean arterial pressure)