肾盂肾下盏夹角对结石清除率的影响

Impact of the infundibulopelvic angle on stone - free rate

目的：观察肾盂肾下盏夹角及结石大小对结石排净率的影响。方法：选择６８例肾下盏结石患者，通过ＩＶＵ影像，测量夹角与结石直径，并经ＥＳＷ Ｌ治疗，随访２月，观察结石排空情况． 结果：６８例患者，结石完全排出４２例，总的结石排空率为 ６１．７％。结论：提示肾盂肾下盏夹角，结石直径对结石排净率有重要影响。

Objetive To observe the effect of the infundibulopelvic angle and the size of stone on stone - free rate. Methods :68 patients with lower caliceal stone were selected. Intravenous urograms were reviewed to measure the infundibulopelvic angle and the stone diameter. With extracorporeal shock wave lithotripsy, we observed the stone - free rate at 2 - month follow up. Results The overall stone - free rate was 61. 7% . The infundibulopelvic angle was greater than 90 degrees, stone diameter was less than 1cm, and the stone - free rate was greater. Conclusion : From our study it is obvious that the infundibulopelvic angle, as well as stone diameter, has a significant role in stone - free status after ESWL.