Transplantation proceedings · 2023
Comprehensive Analysis of Donor Factors for Allograft Survival in Living Kidney Transplantation: A Single-Center Study in Japan.
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Tomizawa Mitsuru, Hori Shunta, Nishimura Nobutaka, Omori Chihiro, Nakai Yasushi, Miyake Makito, Torimoto Kazumasa, Yoneda Tatsuo, Fujimoto Kiyohide
Аннотация
BACKGROUND: Various donor characteristics have been reported as predictive factors for graft survival in kidney transplantations. The living kidney donor profile index (LKDPI) was established in 2016 to evaluate the quality of living donor kidneys. Herein, we verified whether the index score was associated with graft survival and analyzed various donor factors to identify predictors of graft survival in living donor kidney transplantations.
METHODS: This retrospective study included 130 patients who received a living donor kidney between 2006 and 2019 at our hospital. Clinical and laboratory data were obtained from the medical records. Living donor kidneys were categorized into 3 groups by LKDPI score, and the death-censored graft survival and predictors of graft survival were evaluated.
RESULTS: The median LKDPI score was 35 (IQR: 17-53). The index scores of the living donor kidneys in this study were higher than in previous studies. The groups with the highest scores (LKDPI >40) had significantly shorter death-censored graft survival compared with the group with the lowest scores (LKDPI <20; hazard ratio = 4.0, P = .005). There were no significant differences between the group with the middle scores (LKDPI, 20-40) and the other 2 groups. Donor/recipient weight ratio <0.9, ABO incompatibility, and 2 HLA-DR mismatches were identified as independent predictive factors for shorter graft survival.
CONCLUSION: The LKDPI was correlated with death-censored graft survival in this study. However, more studies are required to establish a modified index that is more accurate for Japanese patients.
METHODS: This retrospective study included 130 patients who received a living donor kidney between 2006 and 2019 at our hospital. Clinical and laboratory data were obtained from the medical records. Living donor kidneys were categorized into 3 groups by LKDPI score, and the death-censored graft survival and predictors of graft survival were evaluated.
RESULTS: The median LKDPI score was 35 (IQR: 17-53). The index scores of the living donor kidneys in this study were higher than in previous studies. The groups with the highest scores (LKDPI >40) had significantly shorter death-censored graft survival compared with the group with the lowest scores (LKDPI <20; hazard ratio = 4.0, P = .005). There were no significant differences between the group with the middle scores (LKDPI, 20-40) and the other 2 groups. Donor/recipient weight ratio <0.9, ABO incompatibility, and 2 HLA-DR mismatches were identified as independent predictive factors for shorter graft survival.
CONCLUSION: The LKDPI was correlated with death-censored graft survival in this study. However, more studies are required to establish a modified index that is more accurate for Japanese patients.