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Volume 41 Issue 2
May  2018
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Article Navigation >  Journal of Molecular Imaging  > 2018  >  41(2): 185-188
Yuntian LU, Xiaohui GUO, Zhaohui CAO, Weijun WEN, Huancong ZENG, Cao YAN. Comparative study on two methods of dilatation in the treatment of lower ureteral stricture[J]. Journal of Molecular Imaging, 2018, 41(2): 185-188. doi: 10.3969/j.issn.1674-4500.2018.02.13
Citation: Yuntian LU, Xiaohui GUO, Zhaohui CAO, Weijun WEN, Huancong ZENG, Cao YAN. Comparative study on two methods of dilatation in the treatment of lower ureteral stricture[J]. Journal of Molecular Imaging, 2018, 41(2): 185-188. doi: 10.3969/j.issn.1674-4500.2018.02.13
shu

Comparative study on two methods of dilatation in the treatment of lower ureteral stricture

doi: 10.3969/j.issn.1674-4500.2018.02.13

  • Departmem of Urology, Shunde Hospital of Guangzhou University of Chinese Medicine, Foshan 528333, China

  • Received Date: 2018-02-05
  • Publish Date: 2018-04-01
    Abstract
  • Objective To evaluate the efficacy of two different dilatation methods in the treatment of lower ureteral stricture. Methods 36 cases of lower ureteral stricture with co-existent ureteral calculi at middle-lower segment treated from 2010 to 2017 in our hospital were retrospectively analyzed, and we adopt either slow dilatation method with ureteral forceps under direct vision or balloon dilation method. There were 20 males and 16 females, ages ranging from 20 to 71 with an average of 45 years. 22 cases had ureteral calculi at lower segment and 14 at middle segment, and the stone size ranged from 6-20 mm, with the average diameter of 11mm. As for the renal function, it was mildly impaired in 6 cases, moderately impaired in 27 cases and severely damaged in 3 cases. In the operation, Wolf F 8/9.8 ureteroscopy’s access to ureter failed. The abovementioned patients were randomly divided into two groups, 19 cases in group A were treated with slow dilatation method with ureteral forceps under direct vision and 17 cases in group B with balloon dilation method, and ureteroscopy successfully gained access to ureter in both groups after dilation. The D-J tubes were removed 6 weeks after the operation and microscopic examinations were performed in the lower segment of the ureter to check the stricture condition. Results Two dilatation methods both caused damages to the ureter to varying degrees, with the frequency of mild injuries, such as the tear of the mask, higher in group A while that of severe ureteral injuries, such as muscle laceration and ureteral perforation, higher in group B. The operation time of group A was significantly shorter than that of group B, and there was no significant difference in intraoperative hemorrhage and postoperative pain between the two groups. After 6 weeks, ureteral microscopies were performed successfully, and the mucosae at perforation point were smooth. Conclusion Two methods of dilatation of the ureter are safe and effective in the treatment of lower ureteral stricture and provide guarantee for the intracavity gravel in ureteral. Compared with balloon dilatation method, dilatation method with ureteral forceps, performed slowly under direct vision, has low probability of ureteral tear or perforation and is low in operative cost, therefore an effective treatment method for patients with ureteral stricture and co-existent ureteral calculi.

     

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