458例尿路结石成分分析

目的 探讨西安地区尿路结石的成分状况，为临床防治提供帮助。方法对458例尿路结石标本进行化学成分测定，并结合临床资料进行比较。结果尿路结石男性发病多于女性，男、女比为2．1：1，20一50岁为高发年龄，上尿路结石明显多于下尿路结石，上、下尿路结石之比为10．5：1。结石成分以混合结石占多数，为325例（71％），其中以草酸钙，磷酸钙与尿酸的混合结石为主。对比混合性结石及单纯性结石发现，各种成分所占比例基本一致。结论结石成分分析对于了解结石成因、预防结石形成和复发具有重要的意义。

Analysis of constituents of 458 urinary stones samples

Objective To study the constituents of urinary stones in Xi＇an region, and provide methods in prevention and treatment of urinary stones. Methods Chemical analysis was carried out on 458 random urinary stones samples. The chemical constituents of the stones were compared with the clinical data. Results Urinary stones were more often found in males than in females, and the ratio was 2.1, especially in those 20 to 50 years old. The upper system stones were more frequently found than the lower system stones, and the ratio was 10.5 ： 1. The most common component of the urinary stones are mixed stones （71%）, which are mainly composed of calcium oxalate, phosphate stones and uric-stones. Constituents of mixed stones and pure stones amount to the similar percentage. Conclusion Chemical composition analysis may provide important information to the etiology and prevention of urinary stones in future.