Rethinking paracorporeal lung assist device support in the modern era: Why so different than ECMO?

BACKGROUND

Pediatric patients with combined irreversible pulmonary disease and right ventricular (RV) failure on conventional ECMO face significant challenges with rehabilitation and transplant candidacy. We describe our institutional experience with a novel paracorporeal lung assist device (PLAD) configuration as a bridge to lung transplantation.

METHODS

Three pediatric patients with refractory pulmonary hypertension and RV failure were supported with PLAD utilizing an inline pump, left atrial appendage cannulation via a ringed Gore-Tex conduit, and main pulmonary artery cannulation.

RESULTS

All three patients demonstrated substantial clinical improvement on PLAD support. Pulmonary artery pressures decreased significantly, RV function improved, and patients achieved successful physical and nutritional rehabilitation, including independent ambulation. All patients successfully underwent bilateral lung transplantation, with one patient avoiding heart-lung transplantation. Two patients are currently >1 year post-transplant with excellent outcomes.

CONCLUSIONS

PLAD with inline pump support represents an effective bridge to lung transplantation in pediatric patients with combined pulmonary and RV failure. This configuration enables comprehensive cardiac and physical rehabilitation while reducing pulmonary artery pressures, potentially expanding transplant candidacy and improving outcomes.