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Post-operative recurrence of focal segmental glomerulosclerosis according to pre-transplant treatment after kidney transplantation

Hyeeun Kwon,Y. Kim,Sang Ah Lee,J. Lee,Youngmin Ko,Sung Shin,J. Jung,Frances S. Sung,C. H. Baek,Hyosang Kim,Su-Kil Park,Hyun Kwon

Published 2023 in BMC Nephrology

ABSTRACT

Background Recurrent focal segmental glomerulosclerosis (FSGS) after kidney transplantation (KT) is a serious complication and a significant risk factor for graft failure. However, there is no clear evidence of the effectiveness of pre-transplant treatment using plasmapheresis (PP) or rituximab in preventing post-operative FSGS recurrence after KT. Methods This single-center retrospective study included 99 adult patients with biopsy-proven primary FSGS who underwent KT between 2007 and 2018. The patients were divided into the pre-treatment group (N = 53, 53.5%) and no pre-treatment group (N = 46, 46.5%). In the pre-transplant group, prophylactic PP was administered before KT in patients undergoing living donor transplantation and the day after KT in those undergoing deceased donor transplantation. Results The rate of immediate post-operative recurrence was significantly higher in the no pre-treatment group (16 [34.8%]) than in the pre-treatment group (5 [9.4%]; P  = 0.002). There were three cases of graft failure due to recurrent FSGS, all of which were in the no pre-treatment group. After adjusting for possible confounding factors, age (per 10-year increase; OR = 0.61, CI, 0.42–0.90; P  = 0.012) and pre-transplant treatment (vs. no pre-transplant treatment; OR = 0.17, CI, 0.05–0.54; P  = 0.003) were identified as significant factors associated with FSGS recurrence. The rate of death-censored graft survival was significantly superior in the pretransplant treatment group ( P  = 0.042). Conclusion Pre-transplant treatment with PP was associated with beneficial effects on preventing FSGS recurrence after KT.

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