Factors related to long-term renal transplant function in children

Area of Science:

• Nephrology
• Pediatric Transplantation
• Immunology

Background:

• Short-term pediatric renal allograft survival has significantly improved.
• Identifying factors for long-term graft function is essential for pediatric kidney transplant recipients.
• The NAPTRCS registry provides valuable data for analyzing transplant outcomes.

Purpose of the Study:

• To evaluate factors influencing long-term renal allograft function in pediatric kidney transplant recipients.
• To compare outcomes between children with sustained graft function and those with early transplant failure.
• To identify predictors of renal allograft function beyond 10 years post-transplantation.

Main Methods:

• Analysis of pediatric patients (<12 years) from the NAPTRCS registry who received renal transplants between 1987-1993.
• Comparison of patients with 10 years of follow-up versus those with graft failure within 10 years.
• Assessment of demographic, clinical, immunological, and treatment-related factors impacting graft survival and function.

Main Results:

• Factors associated with early graft failure included older age, female sex, non-Caucasian ethnicity, focal segmental glomerulosclerosis, deceased donor kidneys, fewer HLA matches, pre-transplant dialysis, early post-transplant dialysis, and antihypertensive use.
• Factors associated with sustained graft function at 10 years included younger age, younger donor kidney, and primary transplant.
• Serum creatinine, eGFR, weight Z score, azathioprine use, and antihypertensive use at transplant predicted long-term allograft function.

Conclusions:

• Pediatric kidney transplant recipients experiencing early graft failure often present with specific demographic and clinical characteristics.
• Optimizing HLA matching, considering preemptive transplantation, and managing early post-transplant complications are key to improving long-term renal allograft function.
• Physicians should focus on modifiable factors to enhance sustained graft survival in pediatric kidney transplant patients.