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Bridging Over Troubled Waters-How the United States 2018 Heart Allocation System Altered Transplant Bridging

Les James1, Deane E Smith1

  • 1Department of Cardiothoracic Surgery, NYU Langone Health, New York, NY 10010, USA.

Reviews in Cardiovascular Medicine
|July 30, 2024
PubMed

Insights

The 2018 heart transplant allocation system impacts waitlist mortality and outcomes. Bridging strategies like mechanical circulatory support (MCS) are evolving with this system.

Area of Science:

  • Cardiology
  • Transplant Surgery
  • Medical Systems Analysis

Background:

  • The 2018 US heart allocation system revision aimed to improve equity and outcomes.
  • Significant advancements in mechanical circulatory support (MCS) have occurred concurrently.
  • Bridging strategies are crucial for managing patients awaiting heart transplantation.

Purpose of the Study:

  • To review the history and revisions of the US heart allocation system.
  • To analyze initial outcomes post-implementation, focusing on waitlist mortality and post-transplant results.
  • To examine evolving bridging strategies using VA ECMO, IABP, and LVADs.

Main Methods:

  • Historical review of the heart allocation system.
  • Analysis of initial outcomes data following the 2018 system implementation.
  • Review of current bridging strategies in heart transplantation.

Main Results:

  • The 2018 system has shown initial impacts on waitlist dynamics and transplant outcomes.
  • Evolving MCS technologies are increasingly utilized for bridging patients.
  • Specific bridging strategies demonstrate varied effects on patient survival and recovery.

Conclusions:

  • The 2018 heart allocation system necessitates ongoing evaluation.
  • Optimizing bridging strategies with MCS is critical for successful heart transplantation.
  • Further research is needed to refine allocation and support protocols.

Keywords:
bridging strategiesheart transplantationmechanical support

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