Korean J Transplant.  2022 Sep;36(3):173-179. 10.4285/kjt.22.0018.

First and second kidney transplantations from living donors offer comparable outcomes for patients

• Oh N
• Kim MJ
• Lee KW
• Cho H
• Woo SY
• Rhu J
• Lee S
• Kim JM
• Choi GS
• Park JB
• Joh JW

• KMID: 2533954
• DOI: http://doi.org/10.4285/kjt.22.0018

Abstract

Background
Increasingly many patients are being relisted for repeat kidney transplantation due to longer survival times after transplantation. This study compared the outcomes of second living donor kidney transplantations (LDKTs) with those of first LDKTs.
Methods
Data were collected retrospectively for 1,429 LDKTs performed from 1995 to 2020 at Samsung Medical Center. The demographics of recipients and donors, immu-nologic factors, and outcomes of second LDKTs were compared to those of first LDKTs.
Results
Among 1,429 cases of LDKT, 1,355 were first LDKT cases and 74 were second LDKT cases. Basic demographic data were comparable for the two groups of patients. The 5- and 10-year graft survival rates were 94% and 84% for first LDKTs and 96% and 86% for second LDKTs, respectively, with neither difference statistically significant (P=0.399). The 5- and 10-year patient survival rates were 98% and 94% for the first and 96% and 93% for the second LDKTs, respectively; neither difference was statistically significant (P=0.766). Multivariate analysis confirmed that a history of previous trans-plantation was not a statistically significant risk factor for graft loss (hazard ratio [HR], 0.83; P=0.677) or patient death (HR, 1.68; P=0.396).
Conclusions
These results indicate that repeat kidney transplantation from living donors is a reasonable choice for patients who have experienced graft loss.

Keyword

Kidney transplantation; Renal transplantation; Living donors; Graft survival

Figure

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  Fig. 1 Kaplan-Meier plot for death-censored graft survival for 10 years. The 5-year graft survival rates were 94% and 96%, and the 10-year rates were 84% and 86% in first and second living donor kidney transplantation (LDKT) patients, respectively. The differences were not statistically significant (P=0.399).

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  Fig. 2 Kaplan-Meier plot for patient survival for 10 years. The 5-year patient survival rates were 98% and 96%, and the 10-year rates were 94% and 93% in first and second living donor kidney transplantation (LDKT) patients, respectively. The differences were not statistically significant (P=0.766).

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