Abstract
There are not a great deal of data on post-transplant lymphoproliferative disorder (PTLD) following pancreas transplantation. We analyzed the United Network for Organ Sharing national database of pancreas transplants to identify predictors of PTLD development. A univariate Cox model was generated for each potential predictor, and those at least marginally associated (p < 0.15) with PTLD were entered into a multivariable Cox model. PTLD developed in 43 patients (1.0%) of 4205 pancreas transplants. Mean follow-up time was 4.9 ± 2.2 yr. In the multivariable Cox model, recipient EBV seronegativity (HR 5.52, 95% CI: 2.99-10.19, p < 0.001), not having tacrolimus in the immunosuppressive regimen (HR 6.02, 95% CI: 2.74-13.19, p < 0.001), recipient age (HR 0.96, 95% CI: 0.92-0.99, p = 0.02), non-white ethnicity (HR 0.11, 95% CI: 0.02-0.84, p = 0.03), and HLA mismatching (HR 0.80, 95% CI: 0.67-0.97, p = 0.02) were significantly associated with the development of PTLD. Patient survival was significantly decreased in patients with PTLD, with a one-, three-, and five-yr survival of 91%, 76%, and 70%, compared with 97%, 93%, and 88% in patients without PTLD (p < 0.001). PTLD is an uncommon but potentially lethal complication following pancreas transplantation. Patients with the risk factors identified should be monitored closely for the development of PTLD.
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