Open Access
CC BY 4.0 · Journal of Child Science 2019; 09(01): e90
DOI: 10.1055/s-0039-1697944
Letter to the Editor
Georg Thieme Verlag KG Stuttgart · New York

Calcium/Citrate Ratio and Risk of Kidney Stone

Beuy Joob
1   Medical Center, Sanitation1 Medical Academic Center, Bangkok Thailand
,
Viroj Wiwanitkit
2   Joseph Ayobabalola University, Ikeji-Arakeji, Nigeria
› Institutsangaben
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Publikationsverlauf

25. Juni 2019

30. Juni 2019

Publikationsdatum:
16. Oktober 2019 (online)

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Reply to: Calcium/Citrate Ratio and Risk of Kidney Stone

Does the Urinary Calcium/Citrate Ratio Add to the Diagnostic Workup of Children at Risk of Kidney Stones? A Cross-Sectional Study

We read the publication on “Does the Urinary Calcium/Citrate (UCa/UCi) Ratio Add to the Diagnostic Workup of Children at Risk of Kidney Stones?” with a great interest. Lee et al noted in the article “UCa/UCi rather than UCi/UCr may be more predictive in the clinical setting when evaluating for nephrolithiasis.[1]” The result in this report is concordant with the previous publication by DeFoor et al.[2] Nevertheless, there is an important consideration regarding the urine calcium and citrate measurement. The sexual variation should also be mentioned. For urine calcium, there is no sexual variation; however, a sexual variation is reported for urine citrate.[3] This variation should be kept in mind while interpreting the UCa/UCi ratio in pediatric patients.