A 3-year longitudinal study of skeletal effects and growth in children after kidney transplantation

Diana Swolin-Eide1, Sverker Hansson1, Per Magnusson2

  • 1Department of Pediatrics, Institute for Clinical Sciences, The Queen Silvia Children's Hospital, The Sahlgrenska Academy at Göteborg University, Göteborg, Sweden.

Insights

Kidney transplantation positively impacts pediatric growth, improving height and BMI. Bone formation markers increased, indicating favorable bone acquisition after transplantation.

Area of Science:

  • Pediatric Nephrology
  • Endocrinology
  • Bone Metabolism

Background:

  • Kidney transplantation is crucial for pediatric patients with end-stage renal disease.
  • Long-term effects on growth and skeletal development require further investigation.

Purpose of the Study:

  • To evaluate growth and skeletal development in pediatric kidney transplant recipients over three years.
  • To assess changes in bone metabolism markers, parathyroid hormone (PTH), and vitamin D levels.

Main Methods:

  • Prospective study of pediatric patients (3.4-15.0 years) post-kidney transplantation.
  • Serial assessments of growth (height SDS, BMI SDS), body composition, bone mineral density (BMD), bone turnover markers (CTX, TRACP5b, PINP, ALP, osteocalcin), PTH, and vitamin D.
  • Measurements taken at baseline, 3, 12, and 36 months post-transplant.

Main Results:

  • Significant increases in height SDS (from -1.7 to -1.1) and BMI SDS (from -0.1 to 0.6) over 3 years.
  • Increased fat and lean mass, with total body bone mineral content (BMC) increasing.
  • Decreased bone resorption markers initially, followed by increased bone formation markers over time.
  • No significant changes in total BMD observed.

Conclusions:

  • Kidney transplantation promotes favorable growth and bone acquisition in pediatric patients.
  • Improved height and BMI, along with enhanced bone formation, suggest positive long-term skeletal health outcomes.

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