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Related Experiment Videos

Nephrocalcinosis in childhood.

M T Lin1, Y K Tsau, W Y Tsai

  • 1Department of Pediatrics, National Taiwan University Hospital, Taipei.

Acta Paediatrica Taiwanica = Taiwan Er Ke Yi Xue Hui Za Zhi
|July 27, 2000
PubMed
Summary

Nephrocalcinosis in children is often iatrogenic, frequently linked to Vitamin D or furosemide therapies. This study found no resolution of nephrocalcinosis in pediatric patients during the follow-up period.

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Area of Science:

  • Pediatric Nephrology
  • Medical Research
  • Clinical Case Review

Background:

  • Nephrocalcinosis is a condition characterized by calcium deposits in the kidney parenchyma.
  • Understanding the causes and outcomes of pediatric nephrocalcinosis is crucial for effective management.
  • Previous studies have explored various etiologies, but comprehensive reviews on iatrogenic causes in children are limited.

Purpose of the Study:

  • To investigate the causes and clinical course of nephrocalcinosis in a cohort of pediatric patients.
  • To differentiate between iatrogenic and non-iatrogenic origins of nephrocalcinosis.
  • To assess the diagnostic utility of abdominal X-ray and the resolution rate of nephrocalcinosis.

Main Methods:

  • Retrospective chart review of 16 pediatric patients diagnosed with nephrocalcinosis between 1990 and 1997.

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  • Categorization of cases into iatrogenic and non-iatrogenic etiologies.
  • Analysis of treatment modalities, underlying conditions, diagnostic imaging findings, and follow-up data.

    • Main Results:

    • Nephrocalcinosis was iatrogenic in 7 patients (43.8%) and non-iatrogenic in 9 patients (56.2%).
    • Iatrogenic causes included Vitamin D therapy (5 patients) and furosemide therapy (2 patients).
    • Non-iatrogenic causes comprised renal tubular acidosis (3 patients), idiopathic hypercalciuria (3 patients), and rare conditions (3 patients).
    • Abdominal X-ray detected nephrocalcinosis in only 12.5% of cases.
    • No resolution of nephrocalcinosis was observed during the follow-up period.

    Conclusions:

    • Iatrogenic factors, particularly Vitamin D and furosemide, are significant contributors to pediatric nephrocalcinosis.
    • Non-iatrogenic causes are also prevalent, including metabolic and genetic conditions.
    • Abdominal X-ray has limited sensitivity for detecting nephrocalcinosis in children.
    • Nephrocalcinosis in this cohort showed persistence, highlighting the need for early diagnosis and intervention.