No country for old livers? Examining and optimizing the utilization of elderly liver grafts

Am J Transplant. 2018 Mar;18(3):669-678. doi: 10.1111/ajt.14518. Epub 2017 Nov 8.

Abstract

Of the 1.6 million patients >70 years of age who died of stroke since 2002, donor livers were retrieved from only 2402 (0.15% yield rate). Despite reports of successful liver transplantation (LT) with elderly grafts (EG), advanced donor age is considered a risk for poor outcomes. Centers for Medicare and Medicaid Services definitions of an "eligible death" for donation excludes patients >70 years of age, creating disincentives to donation. We investigated utilization and outcomes of recipients of donors >70 through analysis of a United Network for Organ Sharing Standard Transplant Analysis and Research-file of adult LTs from 2002 to 2014. Survival analysis was conducted using Kaplan-Meier curves, and Cox regression was used to identify factors influencing outcomes of EG recipients. Three thousand one hundred four livers from donors >70, ≈40% of which were used in 2 regions: 2 (520/3104) and 9 (666/3104). Unadjusted survival was significantly worse among recipients of EG compared to recipients of younger grafts (P < .0001). Eight independent negative predictors of survival in recipients of EG were identified on multivariable analysis. Survival of low-risk recipients who received EG was significantly better than survival of recipients of younger grafts (P = .04). Outcomes of recipients of EG can therefore be optimized to equal outcomes of younger grafts. Given the large number of stroke deaths in patients >70 years of age, the yield rate of EGs can be maximized and disincentives removed to help resolve the organ shortage crisis.

Keywords: Organ Procurement and Transplantation Network; clinical research/practice; delayed graft function; donors and donation; geriatrics; liver transplantation/hepatology; organ acceptance; organ procurement and allocation; recipient selection.

MeSH terms

  • Aged
  • Clinical Decision-Making*
  • Donor Selection / standards*
  • Female
  • Follow-Up Studies
  • Graft Survival
  • Humans
  • Liver Diseases / mortality*
  • Liver Diseases / surgery
  • Liver Transplantation / mortality*
  • Male
  • Middle Aged
  • Postoperative Complications*
  • Survival Rate
  • Tissue Donors / supply & distribution*
  • Tissue and Organ Procurement / standards*
  • Transplant Recipients
  • Treatment Outcome
  • United States