Related Experiment Video
Updated: May 13, 2026
23:43
Heterotopic Heart Transplantation in Mice
Published on: July 19, 2007
Heterotopic heart transplantation: where do we stand?
Erwan Flécher1, Olivier Fouquet, Vito Giovanni Ruggieri
1Department of Cardiothoracic and Vascular Surgery, Rennes University Hospital, Rennes, France. erwan.flecher@chu-rennes.fr
Summary
Heterotopic heart transplantation (HHT) was explored as an alternative to orthotopic heart transplantation (OHT) for heart failure. While HHT offers unique benefits, OHT remains the standard due to advances in immunosuppression and mechanical support.
Area of Science:
- Cardiology
- Surgical Innovation
- Transplantation Medicine
Background:
- Orthotopic heart transplantation (OHT) is the standard for end-stage heart failure.
- Heterotopic heart transplantation (HHT) involves parallel graft connection to the native heart.
- HHT was proposed for acute rejection, pulmonary hypertension, and donor pool expansion.
Purpose of the Study:
- To review the historical development of HHT.
- To discuss the clinical applications, advantages, and disadvantages of HHT.
- To compare HHT with the current standard of OHT.
Main Methods:
- Literature review of HHT origins and clinical developments.
- Analysis of reported short- and long-term outcomes of HHT.
- Evaluation of HHT's utility in light of modern medical advancements.
Main Results:
- Limited data exists for HHT, with most studies reporting fewer than 30 cases.
- HHT's advantages include assisting native heart function and maintaining circulation during rejection.
- HHT's proposed benefits are less relevant today due to improved immunosuppression and mechanical support.
Conclusions:
- Orthotopic heart transplantation (OHT) remains the preferred method for eligible patients.
- Heterotopic heart transplantation (HHT) has diminished utility compared to its historical potential.
- Advances in immunosuppression and mechanical circulatory support have reduced the need for HHT.
