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Published on: May 7, 2019
End-stage kidney disease after pediatric nonrenal solid organ transplantation
Rebecca L Ruebner1, Peter P Reese, Michelle R Denburg
1MSCE, Children's Hospital of Philadelphia, Division of Nephrology 1 Main, 34th St and Civic Center Blvd, Philadelphia, PA 19104. ruebnerr@email.chop.edu.
Insights
Pediatric solid organ transplant recipients face a significant risk of end-stage kidney disease (ESKD), particularly after intestinal and lung transplants. Early intervention targeting risk factors is crucial for preventing kidney damage in these children.
Area of Science:
- Pediatric Nephrology
- Transplantation Medicine
- Public Health
Background:
- Solid organ transplant (SOT) recipients often develop advanced kidney disease.
- The incidence and risk factors for end-stage kidney disease (ESKD) in pediatric SOT recipients are not well understood.
- Understanding ESKD burden in children post-SOT is critical for improving long-term outcomes.
Purpose of the Study:
- To determine the incidence of ESKD in children following SOT.
- To assess the relative risk of ESKD based on the type of SOT received.
- To identify high-risk groups for targeted interventions.
Main Methods:
- Retrospective analysis of a national cohort of pediatric SOT recipients (ages ≤ 18) from 1990-2010.
- Utilized Scientific Registry of Transplant Recipients and US Renal Data System data.
- Employed competing risks analysis and multivariable Cox regression to evaluate ESKD incidence and organ-specific risks.
Main Results:
- The study included 16,604 pediatric SOT recipients.
- A total of 426 (3%) children developed ESKD during a median follow-up of 6.2 years.
- Intestinal (HR 7.37) and lung (HR 5.79) transplant recipients had the highest adjusted risk of ESKD compared to liver recipients.
Conclusions:
- Pediatric SOT recipients, especially those undergoing intestinal and lung transplants, are at the highest risk for developing ESKD.
- The actual burden of chronic kidney disease may be substantially higher than reported ESKD rates.
- Targeting modifiable risk factors is essential to prevent progressive kidney damage in this vulnerable population.
Objectives:
Adult solid organ transplant (SOT) recipients commonly develop advanced kidney disease; however, the burden of end-stage kidney disease (ESKD) in children after SOT is not well-described. The objectives of this study were to determine the incidence of ESKD after pediatric SOT and the relative risk by SOT type.
Methods:
Retrospective multicenter cohort study of children, ages ≤ 18 years, who received SOTs from 1990 through 2010 using Scientific Registry of Transplant Recipients data linked to the US Renal Data System. We performed a competing risks analysis to determine cumulative incidence of ESKD (chronic dialysis or kidney transplant), treating death as a competing risk, and fit a multivariable Cox regression model to assess hazard of ESKD by organ type.
Results:
The cohort included 16,604 pediatric SOT recipients (54% liver, 34% heart, 6% lung, 6% intestine, and 1% heart-lung). During a median follow-up of 6.2 years (interquartile range 2.2-12.1), 426 (3%) children developed ESKD. Compared with liver transplant recipients, in whom the incidence of ESKD was 2.1 cases per 1000 person-years, in adjusted analyses the highest risk of ESKD was among intestinal (hazard ratio [HR] 7.37, P < .001), followed by lung (HR 5.79, P < .001) and heart transplant recipients (HR 1.79, P < .001).
Conclusions:
In a 20-year national cohort of pediatric SOT recipients, the risk of ESKD was highest among intestinal and lung transplant recipients. The burden of earlier stages of chronic kidney disease is probably much higher; modifiable risk factors should be targeted to prevent progressive kidney damage in this high-risk population.
Related Concept Videos
Kidney Transplant I: Introduction
Kidney Transplant II: Surgical Procedure
Kidney Transplant III: Nursing Management
Acute Kidney Injury III: Clinical Manifestations
Chronic Kidney Disease I: Introduction
Chronic Kidney Disease III: Interprofessional Care

