Type of renal calculi: variation with age and sex
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- 作者：Antonia Costa-Bauz¨¢ ; Margarita Ramis ; Vicente Montesinos ; Felix Grases ; Antonio Conte ; Pedro Piz¨¢ and Enrique Pieras
- 关键词：Renal calculi ; Composition ; Etiologic factors ; Sex ; Age
- 刊名：World Journal of Urology
- 出版年：2007
- 出版时间：August, 2007
- 年：2007
- 卷：25
- 期：4
- 页码：415-421
- 全文大小：440 KB
文摘
The aim of this paper is to study the variations in the percentage of the different types of renal stones with age and sex. Renal calculi were classified according to their composition and structure. Stone formers were divided according to age and sex, and the percentage of each kind of calculi in the different considered age periods for men and women were determined. It was found that calcium oxalate dihydrate calculi decreased with age, but only in men. These calculi were also clearly predominant in men. Hydroxyapatite calculi decreased with age in both men and women, but they were predominant in women. Uric acid calculi increased with age in both men and women, but were predominant in men. Finally, it was found that calcium oxalate monohydrate unattached calculi increased with age in both men and women. As a main novelty, the study here presented demonstrates the importance of distinguishing between calcium oxalate monohydrate papillary stones and calcium oxalate monohydrate unattached stones, since the etiologic factors responsible for their origin must be clearly different.