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Type: Journal article
Title: Long-term outcomes after acute rejection in kidney transplant recipients: an ANZDATA analysis
Author: Clayton, P.A.
McDonald, S.P.
Russ, G.R.
Chadban, S.J.
Citation: Journal of the American Society of Nephrology, 2019; 30(9):1697-1707
Publisher: American Society of Nephrology
Issue Date: 2019
ISSN: 1046-6673
Statement of
Philip A. Clayton, Stephen P. McDonald, Graeme R. Russ, and Steven J. Chadban
Abstract: BACKGROUND:Declining rates of acute rejection (AR) and the high rate of 1-year graft survival among patients with AR have prompted re-examination of AR as an outcome in the clinic and in trials. Yet AR and its treatment may directly or indirectly affect longer-term outcomes for kidney transplant recipients. METHODS:To understand the long-term effect of AR on outcomes, we analyzed data from the Australia and New Zealand Dialysis and Transplant Registry, including 13,614 recipients of a primary kidney-only transplant between 1997 and 2017 with at least 6 months of graft function. The associations between AR within 6 months post-transplant and subsequent cause-specific graft loss and death were determined using Cox models adjusted for baseline donor, recipient, and transplant characteristics. RESULTS:AR occurred in 2906 recipients (21.4%) and was associated with graft loss attributed to chronic allograft nephropathy (hazard ratio [HR], 1.39; 95% confidence interval [95% CI], 1.23 to 1.56) and recurrent AR beyond month 6 (HR, 1.85; 95% CI, 1.39 to 2.46). Early AR was also associated with death with a functioning graft (HR, 1.22; 95% CI, 1.08 to 1.36), and with death due to cardiovascular disease (HR, 1.30; 95% CI, 1.11 to 1.53) and cancer (HR, 1.35; 95% CI, 1.12 to 1.64). Sensitivity analyses restricted to subgroups with either biopsy-proven, antibody-mediated, or vascular rejection, or stratified by treatment response produced similar results. CONCLUSIONS:AR is associated with increased risks of longer-term graft failure and death, particularly death from cardiovascular disease and cancer. The results suggest AR remains an important short-term outcome to monitor in kidney transplantation and clinical trials.
Keywords: Humans
Cardiovascular Diseases
Acute Disease
Kidney Transplantation
Proportional Hazards Models
Graft Rejection
Graft Survival
Time Factors
Middle Aged
New Zealand
Renal Insufficiency, Chronic
Rights: Copyright © 2019 by the American Society of Nephrology
DOI: 10.1681/asn.2018111101
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