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Updated: Aug 8, 2026

Implantation of the Syncardia Total Artificial Heart
Published on: July 18, 2014
Heart transplantation in the United States 2004
1Terasaki Foundation Laboratory, USA.
Insights
Optimizing heart transplant outcomes requires careful recipient selection and management. Factors like donor circumstances, recipient characteristics, and immunological compatibility significantly impact graft survival, emphasizing personalized care for better patient survival.
Area of Science:
- Cardiology
- Transplantation Immunology
- Public Health
Background:
- Limited donor heart availability necessitates optimal matching for improved patient and graft survival.
- Heart transplantation remains a critical treatment for end-stage heart failure, with ongoing challenges in organ allocation.
Purpose of the Study:
- To investigate heart transplant outcomes in the US and identify key influencing factors.
- To analyze data from a large cohort to understand determinants of graft survival.
Main Methods:
- Analysis of 36,277 heart transplants reported to the Organ Procurement and Transplantation Network/United Network for Organ Sharing (OPTN/UNOS) Registry (January 1988-October 2004).
- Examination of both non-immunological and immunological factors affecting graft survival.
Main Results:
- One- and 5-year graft survival rates reached 87% and 72% for adult recipients, respectively.
- Non-immunological factors (donor death circumstances, recipient race, age, disease, renal function) significantly impacted survival.
- Immunological factors (HLA mismatches, sensitization, rejection episodes) were associated with lower graft survival.
Conclusions:
- Achieving optimal heart transplant outcomes depends on matching suitable candidates with available donor hearts.
- Optimizing immunosuppression and managing transplant-related complications are crucial for long-term graft and patient survival.
Abstract:
The limited availability of donated hearts is not sufficient to meet the needs of increasing numbers of heart transplant candidates. Thus, it is important to find the best recipient for each donated heart in order to achieve the best graft and patient survival. We investigated heart transplant outcomes in the US and the factors that influence them. We present information regarding 36,277 heart transplants reported to the OPTN/ UNOS Registry from January 1988-October 2004. The annual number of transplants ranged between 2,057-2,363 during the past 14 years and has not increased since 1990. One- and 5-year graft survival rates have gradually increased and have reached 87% and 72%, respectively, for adult recipients. Non-immunological factors, such as the circumstance of the donor's death, cause of death and ischemic time, the recipient's race, age, original disease, infection, systemic cerebro-vascular disease, whether or not they were on life support, renal function etc, significantly impacted on graft survival. Immunological factors, such as previous transfusion, previous transplantation, HLA mismatches, sensitization status, rejection episodes before discharge or within one year after transplant, were associated with lower graft survival rates. In conclusion, in order to achieve the best possible outcome for heart transplant patients, we must first find the most suitable candidate for an available donated heart; secondly, we must optimize immunosuppressive regimens and other medical and surgical therapies to prevent graft rejection and transplant-related complications.

