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The new allocation era and policy.

Luke J Benvenuto1, Selim M Arcasoy1

  • 1The Lung Transplant Program, New York-Presbyterian Hospital and Columbia University Irving Medical Center, Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, New York, NY, USA.

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|January 7, 2022
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Summary
This summary is machine-generated.

The lung allocation system evolved from waiting time to a lung allocation score (LAS), improving urgency prioritization. Subsequent changes expanded geographic access to donor lungs, addressing prior disparities.

Keywords:
Lung allocationgeographic disparitieslung transplantationpolicy

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Area of Science:

  • Organ transplantation policy
  • Public health regulations
  • Medical ethics in allocation

Background:

  • The 1998 DHHS Final Rule established guidelines for organ transplantation and allocation.
  • Initial lung allocation relied on waiting time, later replaced by the Lung Allocation Score (LAS).
  • The LAS aimed to prioritize medical urgency and post-transplant success, reducing waitlist mortality.

Purpose of the Study:

  • To review the history and evolution of the lung allocation system in the U.S.
  • To analyze the impact of major changes in lung allocation policy.
  • To discuss the future direction of organ distribution frameworks.

Main Methods:

  • Historical review of lung allocation policies and regulatory changes.
  • Analysis of the Lung Allocation Score (LAS) implementation and its effects.
  • Examination of the shift from local Donation Service Areas (DSAs) to expanded geographic allocation radii.

Main Results:

  • The LAS successfully prioritized critically ill patients but did not resolve geographic disparities in lung access.
  • A 2017 lawsuit prompted an expansion of the donor lung allocation radius to 250 nautical miles.
  • The Organ Procurement and Transplantation Network is moving towards a continuous, borderless organ distribution framework.

Conclusions:

  • Lung allocation policy has significantly evolved to improve fairness and efficiency.
  • Addressing geographic variability remains a key challenge in organ distribution.
  • Future policies aim for a continuous, geographically unconstrained organ allocation system.