ECMO as Bridge to Heart Transplantation

Abstract

Extracorporeal membrane oxygenation (ECMO) is increasingly employed to support patients affected by refractory cardiogenic shock. When patients cannot be weaned from ECMO because of severe heart dysfunction, heart transplantation (HTx) or implantation of a durable mechanical circulatory support should be considered. Traditionally, the use of ECMO as a direct bridge to HTx was burdened by high mortality. However, during these last years, the widespread employment of ECMO increased centers’ experience in the management of this device, and new allocation policies provided the highest priority level for ECMO HTx candidates. Therefore, these factors could have mitigated the negative outcomes previously reported. The aim of this chapter is to describe the role of ECMO as a direct bridge to HTx, analyzing results of this strategy, and how to determine candidacy and risk stratification among the severely ill population of patients supported by this mechanical circulatory support.