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Table 1 Baseline characteristics before initiation of extracorporeal membrane oxygenation (ECMO)

From: Risk factors for complete recovery of adults after weaning from veno-venous extracorporeal membrane oxygenation for severe acute respiratory failure: an analysis from adult patients in the Extracorporeal Life Support Organization registry

Variables CR (n = 1976) PR (n = 3885) p
Male 1057 (57.3) 2336 (60.9) 0.009
Age 42.3 ± 15.2 45.9 ± 14.7 < 0.001
Weight 85.9 ± 27.1 91.6 ± 29.2 < 0.001
Primary diagnosis    < 0.001
 Bacterial pneumonia 38 (1.9) 117 (3.0)  
 Viral pneumonia 357 (18.1) 1004 (25.8)  
 COPD/asthma 123 (6.2) 208 (5.4)  
 Interstitial lung disease 174 (8.8) 122 (3.1)  
 Trauma and burn 113 (5.7) 218 (5.6)  
 ARDS 656 (33.2) 1145 (29.5)  
 Aspiration pneumonitis 15 (0.8) 32 (0.8)  
 Sepsis 29 (1.5) 69 (1.8)  
 Others 471 (23.8) 970 (25.0)  
Ventilator before ECMO
 PIP 35.1 ± 10.8 34.2 ± 9.1 0.017
 PEEP 13.0 ± 5.5 13.1 ± 5.7 0.674
PaO2 FiO2 ratio 90.8 ± 107.5 75.7 ± 188.9 0.005
 Mean ABP 74.7 ± 19.2 72.2 ± 16.9 < 0.001
 Cardiac arrest before ECMO 111 (5.6) 273 (7.0) 0.039
 RRT 38 (1.9) 213 (5.5) < 0.001
 Vasopressor 447 (22.6) 1186 (30.5) < 0.001
 Rescue therapy before ECMO
 Systemic steroids 158 (8.0) 345 (8.9) 0.253
 NO inhalation 218 (11.0) 359 (9.2) 0.030
 NMB agents 572 (28.9) 1254 (32.3) 0.009
  1. Values are expressed as mean ± standard deviation or n (%)
  2. COPD chronic obstructive pulmonary disease, ARDS acute respiratory distress syndrome; ECMO extracorporeal membrane oxygenation, PIP peak inspiratory pressure, PEEP positive end expiratory pressure, ABP arterial blood pressure, RRT renal replacement therapy, NO nitric oxide, NMB neuromuscular blockade