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Table 2 Patients and extracorporeal membrane oxygenation ( ECMO) characteristics and comparison between veno-venous (VV) ECMO and veno-arterial (VA) ECMO.

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

Variables VA ECMO
(n = 105)
VV ECMO
(n = 53)
P value for VV versus VA ECMO
Age (years) 50 (43-59) 35 (24-49) < 0.0001
Female 23 (22%) 20 (37.7%) 0.039
APACHE II score (n = 144) 21.5 (16-27) 16.5 (13-21) 0.001
ECMO initiated in another hospital 19 (18%) 22 (41%) 0.002
ECMO post surgery 54 (51%) 6 (11%) < 0.0001
Days on support 7 (5-10) 10 (6-16) 0.0046
SOFA score day 0 (n = 144) 10 (10-13) 12 (10-14) 0.721
PaO2/FiO2 day 0 (n = 125) 287 (112-370) 71 (60-99) < 0.0001
Plasma lactate day 0 (mmol/l) (n = 131) 6.5 (3.1-10.8) 1.8 (1.2-3.1) < 0.0001
RRT associated 61 (58%) 27 (51%) 0.402
Complications    
   Bleeding plus surgery 34 (32.4%) 9 (17%) 0.057
   Total of RBC units 14 (7-24) 9 (5-18) 0.0911
   RBC units/day on ECMO 2 (1-3.3) 1 (0.6-1.7) < 0.0001
   Platelets 4 (1-8) 1 (0-3) < 0.001
   FFP 4 (1-11) 0 (0-4) < 0.001
   Cryoprecipitate 1 (0-2) 0 (0-1) 0.004
   Neurological stroke 1 (0.9%) 1 (1.9%) 1
   Vascular complications 10 (9.5%) 0 (0%) 0.017
   At least one bloodstream infection 14 (13.3%) 7 (13.2%) 1
  1. Data presented as n (%) categorical variables and median (interquartile range) for non-parametric variables. APACHE II, acute physiology and chronic health evaluation; Day 0, day of ECMO initiation; 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.