Variation in use of procurement biopsies and its implications for discard of deceased donor kidneys recovered for transplantation

Krista L. Lentine, Abhijit S. Naik, Mark A. Schnitzler, Henry Randall, Jason R. Wellen, Bertram L. Kasiske, Gary Marklin, Diane Brockmeier, Matthew Cooper, Huiling Xiao, Zidong Zhang, Robert S. Gaston, Richard Rothweiler, David A. Axelrod

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The use of procurement biopsies in deceased donor kidney acceptance is controversial. We analyzed Scientific Registry of Transplant Recipients data (n = 59 328 allografts, 2014-2018) to describe biopsy practices across US organ procurement organizations (OPOs) and examine relationships with discards, using hierarchical modeling to account for OPO and donor factors. Median odds ratios (MORs) provide the median of the odds that allografts with identical reported traits would be biopsied or discarded from 2 randomly drawn OPOs. Biopsies were obtained for 52.7% of kidneys. Biopsy use rose in a graded manner with kidney donor profile index (KDPI). Biopsy rates differed significantly among OPOs (22.8% to 77.5%), even after adjustment for KDPI and other donor factors. Discard rates also varied from 6.6% to 32.1% across OPOs. After adjustment for donor factors and OPO, biopsy was associated with more than 3 times the likelihood of discard (adjusted odds ratio [95%LCLaOR95%UCL], 3.293.513.76). This association was most pronounced for low-risk (KDPI <20) kidneys (aOR, 5.456.477.69), with minimal impact at KDPI >85 (aOR, 0.881.151.51). Adjusted MORs for kidney discard and biopsy were greatest for low-risk kidneys. Reducing the rate of unnecessary biopsy and improving the accuracy of histologic assessments in higher KDPI organs may help reduce graft discard rates.

Original languageEnglish
Pages (from-to)2241-2251
Number of pages11
JournalAmerican Journal of Transplantation
Volume19
Issue number8
DOIs
StatePublished - Aug 2019

Keywords

  • Scientific Registry for Transplant Recipients (SRTR)
  • biopsy
  • clinical research/practice
  • donors and donation: deceased
  • health services and outcomes research
  • kidney transplantation/nephrology
  • organ procurement
  • organ procurement and allocation

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