Table 3. Factors that affect post-transplant survival in patients on ECMO support.

Favorable factors

Age <50 years

Normal or marginally elevated total bilirubin

Normal or mildly elevated pulmonary artery pressures

<14-day duration on ECMO

Low SOFA score (<6)

Non-invasive ventilation

Ability to participate in physical therapy (i.e., “awake ECMO”)

Unfavorable factors

Age >60 years

Total bilirubin >3

Severe pulmonary hypertension

Prolonged ECMO (>14 days)

Prolonged mechanical ventilation

Prolonged immobility on ECMO

SOFA score >9

Major bleeding, infectious complications, or end-organ complications on ECMO

Retransplant with a retransplant interval <1 year

SOFA, sequential organ failure assessment; ECMO, extracorporeal membrane oxygenation.