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Related Experiment Videos

Renal transplants using expanded cadaver donor criteria.

Elizete Keitel1, Tatiana Michelon, Auri Ferreira dos Santos

  • 1Nephrology, Complexo Hospitalar Santa Casa de Porto Alegre, Porto Alegre-RS-Brazil. keitel@terra.com

Annals of Transplantation
|October 14, 2004
PubMed
Summary

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Utilizing expanded donor criteria (EDC) for kidney transplants increases delayed graft function but shows similar acute rejection rates. Patient and graft survival rates at one and five years remain comparable to ideal donors (ID).

Area of Science:

  • Nephrology
  • Transplantation immunology
  • Public health

Background:

  • The increasing demand for organ transplantation necessitates the use of donors who do not meet traditional ideal criteria.
  • Expanded donor criteria (EDC) encompass factors like donor age, comorbidities (hypertension, diabetes, atherosclerosis), and circumstances of death (shock, cardiac arrest).
  • Evaluating the outcomes of using EDC is crucial for optimizing organ utilization and patient survival.

Purpose of the Study:

  • To determine the frequency of kidney transplants performed using expanded donor criteria (EDC) compared to ideal donors (ID).
  • To analyze the incidence of delayed graft function (DGF) and acute rejection in EDC versus ID kidney transplants.
  • To compare patient and graft survival rates between EDC and ID kidney transplant recipients.

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Main Methods:

  • A retrospective analysis of 582 adult cadaveric renal transplants performed between June 1988 and March 2003.
  • Donors were classified as EDC based on specific criteria including hypertension, atherosclerosis, diabetes, age extremes, elevated creatinine, shock, or cardiac arrest.
  • Statistical analysis included Student t-test, Chi-square test, and Kaplan-Meier survival analysis.

Main Results:

  • Approximately 25.4% of the analyzed kidney transplants utilized expanded donor criteria (EDC).
  • The incidence of delayed graft function was significantly higher in EDC transplants (63.9%) compared to ideal donor (ID) transplants (50.4%) (P=0.007).
  • Incidence of acute rejection, patient survival at 1 and 5 years, and graft survival at 1 and 5 years showed no statistically significant differences between EDC and ID groups.

Conclusions:

  • A significant proportion of cadaveric kidney transplants are performed using expanded donor criteria.
  • While EDC kidney transplants exhibit a higher rate of delayed graft function, acute rejection rates are comparable to those from ideal donors.
  • Patient and graft survival rates at one and five years are not statistically different between expanded donor criteria and ideal donor kidney transplants, suggesting their viability in increasing organ availability.