Refractory Cardiac Arrest (ECPR) as indication for ECMO

No cardiac arrest — cardiogenic shock without arrest (0 pts)+0Cardiac arrest (ECPR) — ECMO initiated during or immediately after refractory arrest (+2 pts)+2

Age

Age < 50 years (0 pts)+0Age 50–62 years (1 pt)+1Age > 62 years (2 pts)+2

Body Mass Index (BMI)

BMI < 30 (0 pts)+0BMI ≥ 30 (+1 pt)+1

Creatinine (at time of ECMO initiation)

Creatinine < 150 µmol/L (1.7 mg/dL) (0 pts)+0Creatinine ≥ 150 µmol/L (+1 pt)+1

Arterial Lactate (at time of ECMO initiation)

Lactate < 6 mmol/L (0 pts)+0Lactate 6–10 mmol/L (1 pt)+1Lactate ≥ 10 mmol/L (2 pts)+2

Plasma Cholesterol (marker of nutritional/metabolic reserve)

Cholesterol ≥ 5 mmol/L (1.9 g/L or ≥ 193 mg/dL) (0 pts)+0Cholesterol < 5 mmol/L (<193 mg/dL) (+1 pt)+1

PRESET Score — Predicting Survival ECMO Therapy Score

PRESET Score — Predicting Survival ECMO Therapy Score