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Expanded criteria donor kidney allocation: marked decrease in cold ischemia and delayed graft function at a single

Jonathan T Carter1, Sharon Chan, John P Roberts

  • 1Division of Transplant Surgery, University of California-San Francisco, San Francisco, CA, USA.

American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons
|October 11, 2005
PubMed
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Implementing an Expanded Criteria Donor (ECD) program for kidney transplants reduced cold ischemia time and delayed graft function (DGF). This strategy may improve kidney graft survival by optimizing organ utilization.

Area of Science:

  • Nephrology
  • Transplantation Surgery
  • Organ Allocation

Background:

  • Expanded Criteria Donor (ECD) kidney allocation aims to improve organ utilization and transplant success.
  • The effectiveness of ECD programs in reducing critical transplant metrics like cold ischemia time and delayed graft function (DGF) requires further investigation.

Purpose of the Study:

  • To evaluate the impact of implementing an ECD kidney allocation program on cold ischemia time and the incidence of DGF.
  • To identify risk factors associated with DGF in kidney transplant recipients.

Main Methods:

  • A comparative study analyzing ECD kidney transplants during the first year of the program against historical data from the preceding 5 1/2 years.
  • Logistic regression analysis was employed to determine independent risk factors for DGF.

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Main Results:

  • The ECD program saw a significant decrease in cold ischemia time (16.4 to 7.4 hours) and DGF incidence (43% to 15%).
  • Donor kidney biopsies decreased from 85% to 24%, suggesting ECD designation may inform kidney quality assessment.
  • Independent risk factors for DGF included recipient height, number of HLA mismatches, and cold ischemia time.

Conclusions:

  • The ECD designation can serve as a descriptor of kidney quality, potentially reducing the need for biopsies.
  • ECD kidney allocation effectively decreased cold ischemia time and DGF, offering a pathway to enhanced kidney graft survival.