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Published on: September 13, 2020
Potential Impact of the Proposed Revised UNOS Thoracic Organ Allocation System
Prashant Rao1, Richard Smith2, Zain Khalpey3
1Sarver Heart Center, University of Arizona, Tucson, Arizona.
Insights
The proposed heart transplant allocation system in the US expands tiers and distinguishes mechanical circulatory support devices. This revision aims for a fairer system for heart allocation amid rising waitlists and advanced therapies.
Area of Science:
- Cardiology
- Transplant Medicine
- Medical Ethics
Background:
- Current US heart allocation system faces challenges.
- Increasing heart transplant waiting list.
- Evolving device therapy for advanced heart failure.
Observation:
- The current system requires revision.
- Mechanical circulatory support devices are advancing.
- Existing allocation tiers may not reflect current needs.
Findings:
- A proposed new heart allocation system expands existing tiers.
- The revision allows for greater distinction between mechanical circulatory support devices.
- The proposed system addresses concerns with the current allocation framework.
Implications:
- The revised system aims for more equitable heart allocation.
- Improved distinction of device therapy can optimize patient candidacy.
- Potential for reduced waiting times and improved outcomes for heart failure patients awaiting transplant.
Abstract:
The current United States heart allocation system faces 2 main challenges: an evolving landscape of device therapy in advanced heart failure and a rapidly increasing transplant waiting list. The proposed new heart allocation system involves expansion of the 3 tiers and enables greater distinction between different types of mechanical circulatory support devices. In this review, we discuss how the proposed revision reconciles key concerns of the current system to create a more fair and equitable allocation of hearts in the United States.
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