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SAGE Publications, Progress in Transplantation, 1-2(34), p. 41-46, 2024

DOI: 10.1177/15269248241237814

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Avascular Necrosis in Kidney Transplant Recipients is Associated With an Increased Risk of Patient Death

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Introduction: Avascular necrosis is a debilitating osseous complication in transplant recipients. Project Aim: This program evaluation sought to describe risk factors and adverse outcomes of avascular necrosis in kidney transplant recipients. Design: This was a retrospective evaluation of all recipients of kidneys and simultaneous pancreas and kidneys between 2001 and 2018 from a single center. Controls were selected based on the incidence density, sampling at a 1:3 ratio based on the post-transplant interval. Outcomes of interest were acute rejection, death-censored graft failure, and patient mortality. Results: A total of 88 kidney recipients had avascular necrosis and were compared with 257 controls. Most of the recipient's and donors’ baseline characteristics were similar between the groups, except calcineurin inhibitor-based immunosuppression was more prevalent, and non-white donors were less prevalent in the control group. Looking for risk factors for avascular necrosis, calcineurin inhibitor-based immunosuppression was associated with a lower risk for avascular necrosis in the univariate analysis, but this was not found after adjustment of multiple variables. In multivariate analysis, avascular necrosis was associated with an increased risk for patient death (hazard ratio: 1.68; 95% confidence interval: 1.16-2.44; P = .008) but not for acute rejection or death censored graft failure. Conclusion: Although limited by small sample size, this evaluation found avascular necrosis to be associated with an increased risk of patient death. This finding may be useful for the provider taking care of the patients and discussing the various outcomes after the transplant.