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  • Title: BK viremia surveillance and outcomes in simultaneous pancreas-kidney transplant recipients.
    Author: Westphal SG, Lyden ER, Langewisch ED, Miles CD.
    Journal: Clin Transplant; 2017 Aug; 31(8):. PubMed ID: 28509373.
    Abstract:
    BACKGROUND: While screening for asymptomatic BK viremia (BKV) has been well studied in isolated kidney transplant recipients, there is a paucity of published outcomes in simultaneous pancreas-kidney (SPK) transplant recipients who underwent BKV screening followed by pre-emptive reduction in immunosuppression. METHODS: This is a single-center, retrospective review of 31 consecutive SPK recipients who were transplanted over a 5-year period following the initiation of a serum BKV screening protocol. RESULTS: BK viremia developed in 11 (35.5%) patients, and all patients achieved complete viral clearance following reduction in immunosuppression. Two patients (6.5%) developed BK virus nephropathy, but both had preserved allograft function. One patient developed mild rejection of the kidney allograft following clearance of BKV, and two patients developed mild rejection of the pancreas allograft after reduction in immunosuppression, but there were no kidney or pancreas allograft losses due to rejection. The development of BK viremia did not impact overall patient survival or kidney and pancreas allograft survival. CONCLUSION: Screening asymptomatic SPK recipients for BKV followed by reduction in maintenance immunosuppression appears to be an effective strategy to prevent kidney allograft dysfunction and graft loss due to BK virus nephropathy, without compromising pancreas allograft outcomes.
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