Variables Mean (SD) or n (%) Group 1 (pH ≤7) n=60 (10.48%) Group 2 (pH=]7.0-7.2]) n=115 (20.11%) Group 3 (pH>7.2) n=397 (69.41%)
p-value
Simplified acute physiology score II 57.60 (23.96) 48.90 (18.79) 43.67 (18.41) <0.001
Age, years 49.26 (13.98) 52.53 (13.29) 56.33 (14.05) <0.001
Male 44 (73.3) 74 (64.9) 270 (68.5) 0.518
Co-morbidities Diabetes Arteriopathy Hypertension 4 (6.7) 0 (0.0) 3 (5.0) 4 (3.5) 1 (0.9) 7 (6.1) 16 (4.0) 5 (1.3) 32 (8.1) 0.276 0.665 0.473
Reason for ECMO implantation Post-cardiotomy cardiogenic shock Septic shock Medical cardiogenic shock RV dysfunction during ARDS Post-heart transplantation cardiogenic shock Refractory cardiac arrest Drug intoxication Other 5 (8.5) 1 (1.7) 13 (22.0) 3 (5.1) 2 (3.4) 24 (40.7) 6 (10.2) 5 (8.5) 27 (23.7) 2 (1.8) 26 (22.8) 6 (5.3) 24 (21.1) 22 (19.3) 3 (2.6) 4 (3.5) 125 (31.6) 2 (0.5) 167 (42.2) 7 (1.8) 40 (10.1) 19 (4.8) 13 (3.3) 23 (5.8)
<0.001
Other support at ECMO implantation Number of days with mechanical ventilation Dobutamine Norepinephrine 5.6 (9.9) 14 (23.7) 46 (78.0) 8.7 (10.0) 68 (59.6) 56 (48.7) 10.0 (10.2) 299 (75.7) 123 (31.1) 0.009 <0.001 <0.001
ECMO localization Central Periphery 3 (5.1) 56 (94.9) 7 (6.1) 108 (93.9) 22 (5.6) 372 (94.4)
0.961
Biological measurement Serum lactates Blood pH 15.22 (4.79) 6.86 (0.12) 9.42 (4.38) 7.13 (0.06) 5.06 (4.11) 7.38 (0.11) <0.001 <0.001