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Outcomes of kidney retransplantation after graft loss as a result of BK virus nephropathy in the era of newer immunosuppressant agents
Authors:Napat Leeaphorn  Charat Thongprayoon  Woojin J. Chon  Lee S. Cummings  Michael A. Mao  Wisit Cheungpasitporn
Abstract:We conducted this study using the updated 2005‐2016 Organ Procurement and Transplantation Network database to assess clinical outcomes of retransplant after allograft loss as a result of BK virus–associated nephropathy (BKVAN). Three hundred forty‐one patients had first graft failure as a result of BKVAN, whereas 13 260 had first graft failure as a result of other causes. At median follow‐up time of 4.70 years after the second kidney transplant, death‐censored graft survival at 5 years for the second renal allograft was 90.6% for the BK group and 83.9% for the non‐BK group. In adjusted analysis, there was no difference in death‐censored graft survival (P = .11), acute rejection (P = .49), and patient survival (P = .13) between the 2 groups. When we further compared death‐censored graft survival among the specific causes for first graft failure, the BK group had better graft survival than patients who had prior allograft failure as a result of acute rejection (P < .001) or disease recurrence (P = .003), but survival was similar to those with chronic allograft nephropathy (P = .06) and other causes (P = .05). The better allograft survival in the BK group over acute rejection and disease recurrence remained after adjusting for potential confounders. History of allograft loss as a result of BKVAN should not be a contraindication to retransplant among candidates who are otherwise acceptable.
Keywords:clinical research/practice  complication  infectious disease  kidney transplantation/nephrology
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