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Resolution of medullary nephrocalcinosis in children with metabolic bone disorders

Ari Auron1, Uri S Alon

  • 1Section of Pediatric Nephrology, The Children's Mercy Hospital, University of Missouri at Kansas City School of Medicine, 64108, USA.

Pediatric Nephrology (Berlin, Germany)
|June 24, 2005
PubMed

Insights

Renal calcifications (nephrocalcinosis) resolved ultrasonographically in four children with metabolic bone disease. Mild tubular dysfunction may persist, warranting further study on anticalciuric diuretics.

Area of Science:

  • Pediatric Nephrology
  • Pediatric Endocrinology
  • Medical Imaging

Background:

  • Nephrocalcinosis (NC) resolution is documented in furosemide-induced cases.
  • Limited data exists on NC resolution in other pediatric conditions.

Observation:

  • Four children with metabolic bone disease (hypophosphatasia, X-linked hypophosphatemic rickets) showed resolution of renal calcifications.
  • Ultrasonographic resolution occurred while patients were on anticalciuric diuretics.
  • Most patients maintained normal renal function and urinalysis.

Findings:

  • Ultrasonographic resolution of nephrocalcinosis is possible in children with metabolic bone disorders.
  • Mild renal tubular dysfunction was noted in some patients despite NC resolution.
  • Anticalciuric diuretics were used in most patients during resolution.

Implications:

  • This suggests a potential role for anticalciuric diuretics in managing pediatric nephrocalcinosis.
  • Long-term follow-up is necessary to monitor for persistent tubular dysfunction.
  • Further research is needed to confirm the efficacy of anticalciuric diuretics in NC resolution.

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