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. 2009 Apr;41(3):846-8.
doi: 10.1016/j.transproceed.2009.01.066.

First year renal function as a predictor of kidney allograft outcome

L Resende  1 , J Guerra, A Santana, C Mil-Homens, F Abreu, A G da Costa
Affiliations

First year renal function as a predictor of kidney allograft outcome

L Resende et al. Transplant Proc. 2009 Apr.

Abstract

Background: Several factors are known to have detrimental effects on kidney allograft function in the first year posttransplantation, which has been reported to be an important factor influencing long-term graft survival.

Objectives: The objectives of this study were to evaluate risk factors for lower estimated glomerular filtration rate (eGFR) at 3 and 12 months posttransplantation and analyze the influence of first year allograft function on graft and patient survivals.

Patients: We performed a retrospective review of the clinical data from 433 cadaveric donor kidney transplantations in adults performed in our unit from May 1989 to May 2007.

Results: Donor female gender and nontraumatic cause of death, panel-reactive antibody (PRA) titer > or =50%, acute rejection episodes, and delayed graft function (DGF) were significant risk factors for a decreased eGFR at one year posttransplantation. Recipient and donor age showed negative correlations with eGFR at 3 and 12 months. A logistic regression model showed acute rejection episodes, DGF, donor age > or =55 years, donor female gender, and nontraumatic cause of donor death to be independent adverse risk factors for eGFR <60 mL/min at 3 and 12 months. Lower eGFRs at 3 and 12 months were associated with poorer allograft survival when data were censored for death with a functioning graft and patient survival. Multivariate analysis revealed that PRA titer > or =50%, acute rejection episodes, and eGFR <30mL/min at 12 months had adverse effects on allograft survival.

Conclusion: Several factors influence kidney allograft function in the first year after transplantation. Kidney allograft function at 12 months predicted long-term graft survival.

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