Preemptive Kidney Transplantation is Associated With Transplantation Outcomes in Children: Results From the French Kidney Replacement Therapy Registry.
2021
BACKGROUND Kidney transplantation (KT) is the optimal treatment for children with end-stage kidney disease (ESKD). The aim of this study was to evaluate the impact of PKT and of pretransplant dialysis duration on graft survival among French pediatric kidney transplant recipients. METHODS We analyzed all first pediatric kidney-only transplantations performed in France between 1993 and 2012. A Cox multivariable model was used to investigate the association of PKT and pretransplant dialysis time with the hazard of graft failure defined as death, return to dialysis or retransplant, whichever occurred first. RESULTS 1911 patients were included, of which 380 (19.8%) received a PKT. Median time of follow-up was 7.0 years. PKT was associated with a 55% reduction of the hazard of graft failure at any time after KT compared to patients transplanted after dialysis (HR 0.45; 95%CI 0.33-0.62), after adjustment for recipient sex and age, primary kidney disease, donor age and type (living or deceased donor), number of HLA mismatches, cold ischemia time and year of transplantation. A reduction of the hazard of graft failure was found in PKT whatever the compared duration of dialysis, even when less than 6 months and whatever the dialysis modality. Results were similar in multiple sensitivity analyses. CONCLUSIONS In France, PKT among pediatric patients is associated with a better graft survival when compared to KT after dialysis, even when less than 6 months. Based on these findings, we suggest that PKT should be considered as the treatment of choice for children with ESKD.
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