Korean J Transplant.  2022 Nov;36(Supple 1):S358. 10.4285/ATW2022.F-4995.

The effect of steroid pulse therapy for the reduction of acute rejection episode in subclinical borderline changes: an open-label, randomized clinical trial

Affiliations
  • 1Department of Surgery, Dongguk University Ilsan Hospital, Goyang, Korea
  • 2Department of Surgery, Samsung Medical Center, Seoul, Korea

Abstract

Background
Subclinical rejection (SCR) has been correlated with subsequent chronic allograft nephropathy and allograft dys-function. SCR is known to be effective in steroid pulse therapy (SPT) in other studies. However, there is controversy about border-line change. The purpose of this study is to investigate the effect of early SPT for the reduction of acute rejection episode during the first year after renal transplantation in the patients who will show subclinical borderline changes at 2-week protocol biopsy.
Methods
This study was a randomized clinical study in which 17 recipients with stable kidney graft function and borderline changes in the protocol biopsy at 2 weeks were enrolled. The recipients were divided into two groups depending on SPT. We in-vestigated changes in Banff scores through protocol biopsy after 1 year. Results: Recipients who underwent acute cellular rejection and borderline change within 1 year were four patients (50%) in the No SPT group and six patients (66.7%) in the SPT group, and there was no difference between the two groups (P=0.637). There was no difference between the two groups in the change of the Banff score between the 2 weeks and 1 year protocol biopsy. And there was no difference in the rates of opportunistic infections including cytomegalovirus (P=0.471) and BK polyomavirus (P=0.637). Also, there was no difference between the two groups with respect to creatinine and estimated glomerular filtration rate at 2 weeks to 3 years after surgery.
Conclusions
There was no difference in Banff score change, infection rate, and graft function between the two groups. In conclusion, we suggest that SPT is not essential in subclinical borderline change.

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