Early Pancreas Graft Failure Is Associated With Inferior Late Clinical Outcomes After Simultaneous Kidney-Pancreas Transplantation

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Background.Early pancreas graft failure after simultaneous pancreas and kidney (SPK) transplantation is common. We studied the impact of early pancreas graft failure on long-term kidney and patient survival.Methods.We included all primary SPK transplants performed in the United States between January 1, 2000, and December 31, 2007, who had maintained kidney graft function at 90 days posttransplantation. Kaplan-Meier and Cox multivariate analyses were performed. The causes of death between the two cohorts were compared.Results.A total of 6282 SPK recipients were included in the analyses. Of those, 470 had lost pancreas graft within the first 90 days largely related to pancreas graft thrombosis. Early pancreas graft failure was associated with lower subsequent kidney graft and patient survival (log-rank, P=0.02 and P<0.001, respectively). Multivariate regression analyses demonstrated a 70% higher risk of kidney graft failure after 3 years (adjusted hazard ratio 1.69; 95% CI 1.08, 2.66; P=0.022) and more than doubled the risk for death (adjusted hazard ratio 2.18; 95% CI 1.67, 2.85; P<0.001) among SPK recipients with early pancreas graft failure. The causes of death were similar between the two cohorts.Conclusion.Early pancreas graft failure in SPK transplant recipients is associated with an increased risk for subsequent kidney failure and death. Optimization of therapeutic interventions after early pancreas graft failure is needed.

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