Score | Population | Number of patients | Number of centres | Cohort enrolment | Pre-ECMO items | Internal validation’s AUROC | External validation’s AUROC | |
---|---|---|---|---|---|---|---|---|
ECMOnet score: Pappallardo et al. [53] | A(H1N1) influenza-related ARDS | 60 | 14 | Winter 2009 | 1. Pre-ECMO LOS 2. Bilirubin 3. Creatinine | 4. Haematocrit level 5. Mean arterial pressure | 0.86 | 0.69a, 0.60b |
PRESERVE score: Schmidt et al. [6] | Severe ARDS | 140 | 3 | 2008–2012 | 1. Age 2. Body mass index 3. Immunocompromised 4. SOFA score | 5. Days of MV 6. Prone positioning 7. PEEP 8. Plateau pressure | 0.89 | 0.68b, 0.75c |
RESP score: Schmidt et al. [27] | Acute respiratory failure | 2355 | 280 | 2000–2012 | 1. Age 2. Immunocompromised 3. Days of MV 4. Diagnosis 5. Central nervous system dysfunction 6. Acute associated (non-pulmonary) infection | 7. Neuromuscular blockade agents 8. Nitric oxide use 9. Bicarbonate infusion 10. Cardiac arrest 11. PaCO2 12. Peak inspiratory pressure | 0.74 | 0.92d, 0.81c |
Roch et al. [28] | ARDS brought to a referral centre | 85 | 1 | 2009–2013 | 1. Age 2. SOFA score 3. Influenza | 0.80 | No | |
Enger et al. [54] | ARDS | 284 | 1 | 2008–2013 | 1. Age 2. Immunocompromised 3. Minute ventilation | 4. Haemoglobin 5. Lactate | 0.75 | No |
Liu et al. [55] | ARDS | 38 | 1 | 2009–2014 | 1. Barotraumae 2. Underlying lung disease |  | – | – |
VV-ECMO mortality score: Cheng et al. [56] | Severe ARDS | 116 | 1 | 2007–2015 | 1. Immunocompromised 2. SOFA score 3. Days of MV |  | 0.76 | No |