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Related Concept Videos

Kidney Transplant I: Introduction01:28

Kidney Transplant I: Introduction

A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...

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Updated: Jun 24, 2026

Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model
12:49

Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model

Published on: August 17, 2022

Survival benefit-based deceased-donor liver allocation.

D E Schaubel1, M K Guidinger, S W Biggins

  • 1Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA. deschau@umich.edu

American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons
|April 4, 2009
PubMed
Summary
This summary is machine-generated.

Prioritizing liver transplant candidates by medical urgency using the Model for End-stage Liver Disease (MELD) score may not maximize survival. A survival benefit system could save over 2000 life-years annually by considering patient and donor factors for deceased-donor liver allocation.

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Published on: May 7, 2015

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Last Updated: Jun 24, 2026

Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model
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Technique of Porcine Liver Procurement and Orthotopic Transplantation using an Active Porto-Caval Shunt
12:27

Technique of Porcine Liver Procurement and Orthotopic Transplantation using an Active Porto-Caval Shunt

Published on: May 7, 2015

Area of Science:

  • Hepatology
  • Transplantation Medicine
  • Biostatistics

Background:

  • Current liver transplant allocation prioritizes patients based on medical urgency via the Model for End-stage Liver Disease (MELD) score.
  • This system may not fully optimize patient survival outcomes.
  • A significant shortage of deceased-donor livers necessitates improved allocation strategies.

Purpose of the Study:

  • To evaluate a novel survival benefit-based system for allocating deceased-donor livers.
  • To compare the proposed system with the current MELD score prioritization.
  • To estimate the potential life-years gained through a benefit-based allocation model.

Main Methods:

  • Developed a survival benefit score considering patient and donor characteristics.
  • Calculated the difference in 5-year mean lifetime with versus without a liver transplant.
  • Assessed the rank correlation between the benefit score and the MELD score.
  • Simulated allocation outcomes under the proposed benefit-based system.

Main Results:

  • The rank correlation between the survival benefit score and MELD score was 0.67.
  • Significant overlap exists in benefit scores across different MELD categories.
  • Waiting list mortality is influenced by multiple factors beyond MELD.
  • Simulations indicate potential to save over 2000 life-years annually with benefit-based allocation.

Conclusions:

  • Prioritizing liver transplant candidates by survival benefit could significantly improve outcomes.
  • A benefit-based system offers a more comprehensive approach to deceased-donor liver allocation.
  • Maximizing the life-saving capacity of procured livers is crucial given donor organ scarcity.