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[Prevalence and composition of urolithiasis in a pediatric Tunisian population]

A Alaya1, A Nouri, M F Najjar

  • 1Laboratoire de biochimie-toxicologie, CHU de Monastir, rue 1(er)-Juin, 5000 Monastir, Tunisie. akram_alaya@yahoo.co.uk

Progres En Urologie : Journal De L'Association Francaise D'Urologie Et De La Societe Francaise D'Urologie
|May 27, 2009
PubMed

Insights

Pediatric urinary calculi composition varies by age, with calcium oxalate stones more common in older children and purine stones in infants. Dietary changes may influence these trends.

Area of Science:

  • Pediatric Nephrology
  • Urology
  • Medical Chemistry

Background:

  • Urinary calculi (kidney stones) in children present unique etiological challenges.
  • Understanding the epidemiologic characteristics of pediatric urinary calculi is crucial for determining causes.

Purpose of the Study:

  • To investigate the composition of pediatric urinary calculi.
  • To analyze stone composition in relation to patient age and sex.

Main Methods:

  • Retrospective analysis of 205 Tunisian children (3 months to 16 years) with urinary calculi.
  • Performed urinary metabolic balance on 126 patients.
  • Analyzed stone physical and chemical composition using stereomicroscopy and infrared spectroscopy.

Main Results:

  • Bladder stones occurred in 30.7% of cases, more frequent in infants.
  • Whewellite (calcium oxalate) was the predominant stone type (72.7%), more common in older children.
  • Purine stones were more prevalent in infants, while struvite stones were found in 7.8%, predominantly in male infants.

Conclusions:

  • Age-related differences in stone composition suggest varying lithogenous risk factors.
  • The findings indicate a potential role of modified dietary practices in pediatric stone formation.
Abstract

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