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Bone biopsy results and serum bone turnover parameters in uremic children

H Ziólkowska1, M Pańiczyk-Tomaszewska, A Debiński

  • 1Department of Paediatrics and Nephrology, Warsaw University Medical School, Poland.

Acta Paediatrica (Oslo, Norway : 1992)
|July 29, 2000
PubMed

Insights

This study found that biochemical markers have limited use in diagnosing different types of renal osteodystrophy in children with end-stage renal failure. Bone biopsy remains crucial for accurate diagnosis of these bone diseases.

Area of Science:

  • Pediatric Nephrology
  • Bone Metabolism
  • Renal Osteodystrophy

Background:

  • Renal osteodystrophy (ROD) is a common complication in children with end-stage renal failure.
  • Accurate diagnosis of ROD types is essential for appropriate management.
  • Current diagnostic methods may have limitations.

Purpose of the Study:

  • To determine the prevalence of different renal osteodystrophy types in children on hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD).
  • To evaluate the utility of biochemical parameters in diagnosing ROD.
  • To correlate biochemical markers with bone histology.

Main Methods:

  • Bone biopsy and serum measurements of parathormone (iPTH), alkaline phosphatase (AP), osteocalcin (OC), procollagen 1C, calcium, and phosphorus.
  • Analysis of data from 51 children with end-stage renal failure.
  • Comparison of ROD types between HD and CAPD groups.

Main Results:

  • Prevalence of ROD types: adynamic bone disease (ABD) in 27%, normal bone (NB) in 37%, osteomalacia (OM) in 2%, mixed lesion (Mix) in 10%, and hyperparathyroidism (HP) in 24%.
  • No significant difference in ROD type prevalence between CAPD and HD.
  • Significant differences in iPTH, OC, and AP levels were observed between HP, NB, and ABD groups.
  • ABD was more common with PTH < 50 pg/ml; HP was more common with iPTH > 200 pg/ml.
  • High correlation found between bone formation rate (BFR) and iPTH, OC, and AP levels.

Conclusions:

  • Biochemical markers of bone turnover have limited value in differentiating renal osteodystrophy types.
  • Bone biopsy remains a valuable tool for diagnosing ROD in pediatric patients.
  • Further research may be needed to identify more reliable biochemical markers.
Abstract

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