Growth rates in pediatric dialysis patients and renal transplant recipients

M N Turenne1, F K Port, R L Strawderman

  • 1United States Renal Data System Coordinating Center and Department of Medicine, University of Michigan, Ann Arbor 48103, USA. usrds@umich.edu

Insights

Pediatric kidney transplant patients showed faster growth than dialysis patients, especially in younger children. Growth rates varied by age and dialysis type, with no significant pubertal growth spurt observed.

Area of Science:

  • Pediatric Nephrology
  • Growth and Development
  • Renal Replacement Therapy

Background:

  • Pediatric end-stage renal disease (ESRD) impacts growth and development.
  • Understanding growth differences between renal replacement therapies is crucial for optimizing patient outcomes.

Purpose of the Study:

  • To compare pediatric growth rates across different renal replacement modalities: transplantation, hemodialysis, continuous cycling peritoneal dialysis (CCPD), and chronic ambulatory peritoneal dialysis (CAPD).
  • To analyze age-specific differences in growth rates among pediatric ESRD patients.

Main Methods:

  • A retrospective analysis of 1,302 US pediatric ESRD patients treated in 1990.
  • Linear regression models adjusted for age, sex, race, ethnicity, and ESRD duration.
  • Stratification by age groups: 0.5-4, 5-9, 10-14, and 15-18 years.

Main Results:

  • Younger children (0.5-9 years) exhibited significantly higher growth rates with transplantation compared to all dialysis modalities.
  • Older children (10-18 years) showed no significant growth rate differences between transplantation and dialysis.
  • Among dialysis modalities, older CAPD patients demonstrated faster growth than hemodialysis or CCPD patients.
  • Alternate-day steroid use in transplant recipients correlated with faster growth, independent of allograft function.
  • No substantial pubertal growth spurt was observed in either transplant or dialysis patients.

Conclusions:

  • Growth rates in pediatric ESRD patients vary significantly by age and treatment modality.
  • Kidney transplantation promotes better growth in younger children compared to dialysis.
  • Dialysis modality choice may influence growth, particularly in older pediatric patients.

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