217.4: A New Allocation System for Priorization in Heart Transplantation in the State of São Paulo - Brazil: Its Impact on Patients in ECMO. (13th September 2022) - Steffen, Samuel P; Gaiotto, Fabio A; Gaspar, Shyrline F; Santos, Ronaldo Honorato B; Filho, Domingos DL; Bacal, Fernando; Jatene, Fabio B