Deceased-Donor Acute Kidney Injury and BK Polyomavirus in Kidney Transplant Recipients

Isaac E. Hall; Peter Philip Reese; Sherry G. Mansour; Sumit Mohan; Yaqi Jia; Heather R. Thiessen-Philbrook; Daniel C. Brennan; Mona D. Doshi; Thangamani Muthukumar; Enver Akalin; Meera Nair Harhay; Bernd Schröppel; Pooja Singh; Francis L. Weng; Jonathan S. Bromberg; Chirag R. Parikh

doi:10.2215/CJN.18101120

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Abstract

Background and objectives BK polyomavirus (BKV) infection commonly complicates kidney transplantation, contributing to morbidity and allograft failure. The virus is often donor-derived and influenced by ischemia-reperfusion processes and disruption of structural allograft integrity. We hypothesized that deceased-donor AKI associates with BKV infection in recipients.

Design, setting, participants, & measurements We studied 1025 kidney recipients from 801 deceased donors transplanted between 2010 and 2013, at 13 academic centers. We fitted Cox proportional-hazards models for BKV DNAemia (detectable in recipient blood by clinical PCR testing) within 1 year post-transplantation, adjusting for donor AKI and other donor- and recipient-related factors. We validated findings from this prospective cohort with analyses for graft failure attributed to BKV within the Organ Procurement and Transplantation Network (OPTN) database.

Results The multicenter cohort mean kidney donor profile index was 49±27%, and 26% of donors had AKI. Mean recipient age was 54±13 years, and 25% developed BKV DNAemia. Donor AKI was associated with lower risk for BKV DNAemia (adjusted hazard ratio, 0.53; 95% confidence interval, 0.36 to 0.79). In the OPTN database, 22,537 (25%) patients received donor AKI kidneys, and 272 (0.3%) developed graft failure from BKV. The adjusted hazard ratio for the outcome with donor AKI was 0.7 (95% confidence interval, 0.52 to 0.95).

Conclusions In a well-characterized, multicenter cohort, contrary to our hypothesis, deceased-donor AKI independently associated with lower risk for BKV DNAemia. Within the OPTN database, donor AKI was also associated with lower risk for graft failure attributed to BKV.

Podcast This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2021_03_10_CJN18101120_final.mp3

Received November 17, 2020.
Accepted January 18, 2021.

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