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[Classification of urinary calculi in a pediatric population from Brittany]
D Luque Paz1, A Meskar, H Kerspern
1Département de biochimie et pharmaco-toxicologie, hôpital de la Cavale-Blanche, CHRU de Brest, 29609 Brest cedex, France.
Insights
Pediatric urinary lithiasis (kidney stones) composition varies by age and gender. Understanding these stone types aids in determining causes and improving treatment for children.
Area of Science:
- Pediatric Nephrology
- Urology
- Biochemistry
Context:
- Urinary lithiasis is uncommon in children in industrialized nations.
- Etiological diagnosis based on stone composition is crucial for effective pediatric treatment.
Purpose:
- To analyze the composition of urinary calculi in children aged 6 months to 18 years.
- To correlate stone composition with patient demographics (age, gender) and clinical factors (infection).
Summary:
- Spectrophotometry analyzed 108 pediatric urinary calculi, classifying them into six groups based on component analysis.
- Stone composition varied significantly with gender, and localization with age.
- A correlation was found between urinary tract infections and calculus composition.
Impact:
- The classification system provides valuable insights into the etiology of pediatric urolithiasis.
- This approach enhances understanding of lithiasis types and underlying physiopathology in children.
- Data supports tailored diagnostic and therapeutic strategies for pediatric kidney stones.
Introduction:
Urinary lithiasis in children is relatively seldom in France as in industrialized countries. The determination of their etiology based on their composition may lead to a better treatment.
Method:
One hundred and eight urinary calculi from 6 months through 18-year-old children were analyzed by using spectrophotometry, in order to specify their structure. Six groups were evidenced through a multidimensional analysis based on the presence of components weighing at least 5% of the total.
Results:
The youngest children affected were mostly boys, and the sex ratio switched after 12.5 years. Above 14 years of age, the number of calculi significantly raised. Their composition varied with the gender, and their localization with the age. Finally a correlation between infection and composition of the calculus was shown in our study.
Conclusion:
The classification of calculi among six groups according to their composition, along with clinical informations and morphologic studies, has proven its value in determining the etiology of the lithiasis. These data help to better understand the kind of lithiasis that may be observed and the physiopathology of the mechanism explaining it from the gender and age.
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