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KMID : 1102220230420060731
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Kidney Research and Clinical Practice
2023 Volume.42 No. 6 p.731 ~ p.741
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Effect of donor?recipient size mismatch on long-term graft survival in pediatric kidney transplantation: a multicenter cohort study
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Park Min-Ji
Baek Hee-Sun
Song Ji-Yeon
Choi Na-Ye
Ahn Yo-Han
Kang Hee-Gyung
Cho Min-Hyun
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Abstract
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Background : Donor?recipient size mismatching is commonly occurs in pediatric kidney transplantation (KT). However, its effect on graft survival remains unknown. This study aimed to determine the effect of donor?recipient size mismatch on the long-term survival rate of transplant kidneys in pediatric KT.
Methods : A total of 241 pediatric patients who received KT were enrolled. The medical records of all patients were retrospectively reviewed, and the correlation between donor?recipient size mismatch and graft function and long-term graft outcome was analyzed according to donor?recipient size mismatch.
Results : Recipients and donors’ mean body weight at the time of KT were 34.31 ± 16.85 and 56.53 ± 16.73 kg, respectively. The mean follow-up duration was 96.49 ± 52.98 months. A significant positive correlation was observed between donor?recipient body weight ratio (DRBWR) or donor?recipient body surface area ratio (DRBSR) and graft function until 1 year after KT. However, this correlation could not be confirmed at the last follow-up. The results of long-term survival analysis using Fine and Gray’s subdistribution hazard model showed no significant difference of the survival rate of the transplant kidney according to DRBWR or DRBSR.
Conclusion : Donor?recipient size mismatch in pediatric KT is not an important factor in determining the long-term prognosis of transplant kidneys.
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KEYWORD
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Donor, Kidney transplantation, Pediatrics, Recipient
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