Destination therapy is a therapy that is final rather than being a transitional stage until another therapy—thus, in transportation metaphor, a destination in itself rather than merely a bridge or road to the destination.[1] The term usually refers to ventricular assist devices or mechanical circulatory support to keep the existing heart going, not just until a heart transplant can occur, but for the rest of the patient's life expectancy. It is thus a course of treatment for severe (e.g., NYHA class IV/ACC stage D) heart failure patients who are not likely candidates for transplant. In contrast, bridge-to-transplant therapy is a way to stay alive long enough, and stay healthy enough, to await transplant while maintaining eligibility for transplant.
Heart failure is a leading cause of death in industrialized economies. Among those with serious heart illness some are, for a variety of possible medical circumstances, ineligible for a heart transplant. Destination therapy provides a possibility to extend their lives and improve their quality of life.[2][3]
In addition, destination therapy may in some cases turn out to remedy the condition that excluded transplantation[4]
Estimates place the population in the United States that may benefit from destination therapy at 50,000 – 100,000 patients per year. The addressable population outside of the US is thought be similar in size.