Skip to main content

Table 2 Clinical characteristics and echocardiographic findings of ARDS patients eligible for ECMO

From: Evaluation of right ventricular function and driving pressure with blood gas analysis could better select patients eligible for VV ECMO in severe ARDS

Characteristics, outcomes and complications Survivors
(n = 36)
Non survivors
(n = 31)
p-value
Age (years) 56 (45–70) 57 (48–70) 0.44
Male sex, n (%) 23 (64) 19 (61) 0.47
SAPS II 44 (32–58) 53 (36–75) 0.15
Weight (kg) 74 (63–97) 67 (56–80) 0.22
Cause of ARDS, n (%)    0.63
 Pneumonia 6 (17) 2 (7)  
 Aspiration 18 (50)) 16 (53)  
 Non-pulmonary sepsis 8 (22) 9 (30)  
 Other causes 4 (11) 3 (10)  
Respiratory setting at inclusion    
 Tidal volume (ml/kg) 6.3 (5.5–7.6) 5.9 (5.3–6.6) 0.13
 Respiratory rate (cycle/min) 25 (20–27) 30 (25–30)  < 0.01
 PEEP (cmH2O) 10 (8–12) 10 (7–12) 0.72
 Plateau pressure (cmH2O) 26 (24–29) 28 (25–38) 0.07
 Compliance (ml/cmH2O) 30 (2338) 23 (16–28)  < 0.01
 Driving pressure (cmH2O) 16 (14–19) 19 (16–22) 0.05
Arterial blood gases    
 PaO2/FiO2 ratio (mmHg) 69 (58–74) 60 (55–67) 0.08
 PaCO2 (mmHg) 48 (40–52) 51 (42–70) 0.17
Shock, n (%) 25 (70) 28 (90) 0.07
Prone positioning, n (%) 31 (86) 24 (77) 0.52
VV ECMO in rescue during ARDS course, n (%) 2 (1) 6 (19) 0.13
RRT during ARDS course, n (%) 9 (33) 6 (55) 0.28
Echocardiographic findings    
 RVEDA/LVEDA 0.71 (0.57–0.93) 0.98 (0.71–1.10) 0.10
 Pulmonary hypertension (mmHg) 51 (44–55) 52 (34–63) 0.85
 Severe acute cor pulmonale 3 (8) 8 (26) 0.09
 ICU stay (days) 19 (14–34) 12 (3–20) 0.16
  1. Values are expressed as median (interquartile range) or n (%)
  2. ARDS, Acute Respiratory Distress Syndrome; PEEP, Positive End-Expiratory Pressure; VV ECMO, Veno-Venous Extracorporeal Membrane Oxygenation; RRT, Renal Remplacement Therapy; RVEDA, Right Ventricular End-Diastolic Area; LVDEA, Left Ventricular End-Diastolic Area; ICU, Intensive Care Unit