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体外震波碎石(ESWL)目前已广泛应用于临床,术前预测碎石效果,成为人们关心的问题。Dratler最近提出结石脆性是预测碎石疗效的依据,现介绍如下。一、结石脆性研究步骤 1.结石成分分析分析所在地区的结石成分,可采用不同的方法如X线粉品分析、红外线光谱分析、发射光谱半定量分析、偏光显微镜、电镜和化学分析等,了解不同种类结石的出现率。据有关文献报道,其出现率顺序是二水草酸钙(COD)47.3％,羟磷灰石(ApaOH)43.7％,一水草酸钙(COM)38.7％,二水磷酸钙(Bru)12.1％,六水磷酸铵镁(Stru)12％,碳酸磷灰石12.4％,尿酸(UA)7.1％,胱氨酸(Cys)0.3％。在尿路中的结石多数是混合性,如COD常和COM或ApaOH共存、Stru常与碳酸磷灰石
Extracorporeal shock wave lithotripsy (ESWL) has been widely used in clinical, preoperative prediction of lithotripsy, become a matter of concern. Dratler recently proposed stone brittleness is the basis for predicting the efficacy of gravel, are described below. First, the stone brittle research steps 1. Stones composition analysis and analysis of the stone components in the region, using different methods such as X-ray powder analysis, infrared spectroscopy, semi-quantitative emission spectroscopy, polarized light microscopy, electron microscopy and chemical analysis, understand The incidence of different types of stones. According to the literature, the order of occurrence is 47.3% of COD, 43.7% of hydroxyapatite, 38.7% of COM, 12.1% of Bru, 12% ammonium carbonate hexahydrate (Stru), 12.4% carbonate apatite, 7.1% uric acid (UA) and 0.3% cystine (Cys). Most of the stones in the urinary tract are mixed, such as COD and COM often coexist or ApaOH, Stru often associated with carbonated apatite