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Table 4 Comparison between survivors and non-survivors among patients who underwent veno-venous extracorporeal membrane oxygenation (VV ECMO).

From: Factors associated with outcomes of patients on extracorporeal membrane oxygenation support: a 5-year cohort study

Variables Survivors
(n = 35)
Non-survivors
(n = 18)
OR, CI 95% P
Age (years) 36 (25-49) 34 (25-50) 1.00 (0.96-1.04) 0.943
Male 18 (56%) 15 (75%) 2.50 (0.74-8.49) 0.142
APACHE II score (n = 50) 16 (13-20.5) 17 (13-21) 1.02 (0.92-1.12) 0.76
Comorbidities     
   Chronic respiratory failure 8 (24%) 7 (35%) 1.68 (0.50-5.68) 0.402
   Immunosuppression 10 (30%) 6 (30%) 0.99 (0.29-3.31) 0.981
   Cystic fibrosis 3 (9%) 4 (20) 2.50 (0.50-12.57) 0.266
ECMO initiated in another hospital 14 (42%) 7 (21%) 0.73 (0.23-2.31) 0.593
Events before ECMO     
Pre-ECMO ICU days 2(0-4) 3 (0-7) 1.11 (0.99-1.24) 0.073
Pre-MV ICU days 1 (0-3) 1 (0-4) 1.08 (0.97-1.21) 0.177
Cardiac arrest before ECMO 2 (6%) 1 (5%) 0.82 (0.07-9.62) 0.872
Post-operative ECMO 4 (12%) 2 (10%) 0.81 (0.13-4.86) 0.813
Severity at ECMO initiation     
SOFA score before ECMO (n = 51) 11 (10-13) 13.5 (112-16) 1.20 (0.99-1.46) 0.064
PaO2/FiO2 ratio before ECMO (n = 43) 71 (68-99) 73 (60-91) 1.00 (0.97-1.03) 0.977
Plasma lactate (n = 46) (mmol/l) 1.6 (1.1-2.6) 2.9 (1.6-3.4) 1.08 (0.85-1.35) 0.532
Other organ support     
   RRT 14 (42%) 13 (65%) 2.52 (0.80-7.95) 0.115
   Inotropes/vasopressors 32 (97%) 19 (95%) 0.59 (0.04-10.05) 0.718
Days on ECMO 9 (6-12) 11.5 (6.8-22.5) 1.05 (0.99-1.11) 0.135
ECMO complications     
Neurologic complications 0 (0%) 1 (5%) - -
Bloodstream infections 6 (18%) 1 (5%) 0.24 (0.03-2.13) 0.199
Bleeding plus surgery 4 (12%) 5 (25%) 2.42 (0.56-10.35) 0.235
Number of RBC units     
   Total 6 (4-13) 15.5 (7-28) 1.07 (1.013-1.13) 0.015
   Per day on ECMO at the Alfred 0.75 (0.4-1.2) 1.7 (0.7-2.3) 1.82 (1.01-3.27) 0.047
Platelets (bag, 350 ml) 0 (0-2) 5 (0-7) 1.63 (1.21-2.21) 0.001
FFP (bag, 300 ml) 0 (0-4) 0.5 (0.5-5.3) 1.01 (0.93-1.10) 0.812
Cryoprecipitate (bag, 150 ml) 0 (0-0) 0 (0-1) 1.09 (0.85-1.41) 0.68
Vascular complications 0 (0%) 0 (0%) - -
  1. Data presented as n (%) categorical variables and median (interquartile range) for non-parametric variables. APACHE II, acute physiology and chronic health evaluation; MV, mechanical ventilation; PaO2/FiO2, arterial partial pressure of oxygen to inspired oxygen fraction ratio; RRT, renal replacement therapy; RBC, red blood cells; SOFA, sequential organ failure assessment; ICU, intensive care unit; FFP, fresh frozen plasma.