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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.
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Critical Care

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