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30 September 2011

Outcomes of renal transplantation in recipients with peak panel reactive antibody >30% under tacrolimus-based immunosuppression

Amit BasuACDEF, John FalconeABDE, Igor DvorchikCD, Henkie P. TanDE, Kristine SchonderBD, J. Wallis MarshDE, Adriana ZeeviDE, Abhinav HumarDE, Ron ShapiroDE

Ann Transplant 2011; 16(3): 5-13 :: ID: 881988

Abstract

Background: Renal transplant recipients with high panel reactive antibodies (PRA) have worse outcomes than those with lower PRA. High PRA re-transplant recipients are thought to have worse outcomes than high PRA first transplant recipients. In this study, we examined outcomes of renal transplantation recipients with a peak PRA >30% and compared the outcomes of first and re-transplanted recipients.
Material/Methods: Survival outcomes between recipients of first transplants (n=68) and re-transplants (n=155) operated between June 1990 and August 2000 were compared. Sub-group analysis was done based on patient’s gender, race and first/re-transplant. All patients received tacrolimus-based immunosuppression.
Results: No difference in graft survival was noted between first and re-transplanted patients. Ten-year patient survival was better in the re-transplanted group (p<0.004). Factors affecting patient survival on univariate analysis were age >55 years (p=0.015), deceased donor transplant (p=0.009), first transplant patient (p=0.004) and diabetes mellitus (DM) as the cause of End Stage Renal Disease (ESRD) (p=0.005). On multivariable analysis, factors affecting patient survival were number of the transplant (re-transplant versus first transplant, Relative risk [RR]=0.54, p=0.009) and cause of ESRD (DM versus no DM, RR=1.91, p=0.012).Diabetes as a cause for ESRD was the only factor affecting graft survival on univariate(p=0.015) and multivariable analysis (DM versus no DM, RR=1.63, p=0.017).
Conclusions: High PRA recipients of first transplants had poorer patient survival than high PRA re-transplants. On multivariable analysis, diabetes etiology of ESRD and first transplantation were found to be independent risk factors for poorer patient survival.

Keywords: Presensitization, HLA typing, Cross match, clinical outcomes, calcineurin inhibitors

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Annals of Transplantation eISSN: 2329-0358
Annals of Transplantation eISSN: 2329-0358