Center for Research in Hepatic and Renal Diseases, Federal University of Ceará (UFC), Fortaleza, Ceará, Brazil.
Clin Chem Lab Med. 2010 Mar;48(3):403-4. doi: 10.1515/CCLM.2010.079.
The objective of this study was to determine the composition of kidney stone fragments obtained after extracorporeal shock wave lithotripsy (ESWL).
Kidney stone fragments from 25 patients with urolithiasis treated with ESWL were submitted for morphological analysis. The composition was determined for all the recovered fragments.
Thirteen patients (52%) had pure stones. The most common type of pure stone was calcium oxalate (61.6%), of which half was the monohydrate type (COM) and half was the dihydrate type (COD). The other pure stones consisted of either uric acid (30.8%) or struvite (7.6%). For mixed stones, the most frequently observed component was COM or COD (50%), followed by a mixture of COD and carbapatite (25.1%).
Our findings indicate that the composition of kidney stone fragments recovered after ESWL can be determined. Knowledge of stone composition is fundamental to understand the etiology of lithogenesis.
本研究旨在确定体外冲击波碎石术（ESWL）后获得的肾结石碎片的组成。
对 25 例接受 ESWL 治疗的尿路结石患者的肾结石碎片进行形态学分析。确定了所有回收碎片的成分。
13 名患者（52%）为单纯结石。单纯结石最常见的类型是草酸钙（61.6%），其中一半为一水合物型（COM），另一半为二水合物型（COD）。其他单纯结石由尿酸（30.8%）或鸟粪石（7.6%）组成。对于混合结石，最常见的成分是 COM 或 COD（50%），其次是 COD 和碳磷灰石的混合物（25.1%）。
我们的研究结果表明，可确定 ESWL 后回收的肾结石碎片的组成。了解结石成分是理解结石成因的基础。
