How to increase the utilization of donor hearts?
Related Experiment Video
Updated: Aug 15, 2026
Pre-clinical Model of Cardiac Donation after Circulatory Death
Published on: August 2, 2019
1Mechanical Assisted Circulation Program, University of Kentucky, Lexington, KY, USA, mguglin@gmail.com.
Insights
Many donor hearts are rejected due to reversible left ventricular (LV) dysfunction. Prompt recovery and limiting catecholamines can improve LV function, increasing donor heart suitability for transplantation.
Area of Science:
- Cardiology
- Transplantation Medicine
- Critical Care Medicine
Background:
- Cardiac transplantation is the optimal treatment for end-stage cardiomyopathy.
- Donor heart scarcity limits transplantation rates.
- Left ventricular (LV) systolic dysfunction and wall motion abnormalities lead to donor heart rejection.
Purpose of the Study:
- To review LV dysfunction in heart donors.
- To identify causes of reversible LV dysfunction.
- To propose strategies for increasing donor heart utilization.
Main Methods:
- Review of existing literature on LV dysfunction in heart donors.
- Analysis of the role of neurogenic stunned myocardium.
- Evaluation of catecholamine effects on LV function.
Main Results:
- A significant proportion of LV dysfunction in donors is reversible, caused by neurogenic stunned myocardium.
- Excess catecholamines, common in brain-dead donors, trigger this reversible dysfunction.
- Recovery of LV function is possible with time and management of catecholamine levels.
Conclusions:
- Neurogenic stunned myocardium is a key factor in donor heart rejection.
- Interventions to manage catecholamines and allow recovery can improve donor heart suitability.
- Strategies focusing on reversible LV dysfunction can increase the number of viable donor hearts for transplantation.
Abstract:
Cardiac transplantation is the best treatment available for patients with end-stage cardiomyopathy. Shortage of donor hearts is the main factor limiting the use of this treatment. Many donor hearts are rejected for transplantation because of left ventricular (LV) systolic dysfunction and/or wall motion abnormalities. While some donors have true cardiomyopathy, a significant proportion has reversible LV dysfunction due to neurogenic stunned myocardium. This condition is triggered by excess of catecholamines, which is typical for brain-dead donors. If given time to recover, LV function may improve, and the heart will be suitable for transplantation. Moreover, limiting of exogenous catecholamines may facilitate the recovery. In this review, we summarize the data on LV dysfunction/wall motion abnormalities in heart donors and propose the strategy to increase the utilization of donor hearts.
More Related Videos
08:15Innovative Strategies for Organ Preservation in Heart Transplantation: Uniform Cooling Preservation and Ex-situ Normothermic Perfusion
Published on: November 28, 2025
07:08A High-Fidelity Porcine Model of Orthotopic Heart Transplantation Following Donation after Circulatory Death
Published on: June 6, 2025
