关键词：双“J”导管；细菌培养；扫描电镜
摘要 目的： 了解双“J”导管体内留置后不同时间的表面变化情况以及与原发病的关系。方法： 对25例26条双“J”导管进行细菌培养及扫描电镜观察研究。结果： 导管表面的炎性附着物和结晶体的数量随着导管留置时间的延长而逐渐增多，留置4周以下的导管其表面炎性渗出物和结晶体的数量明显少于留置4周以上的导管。进一步的分析发现，肾和输尿管结石及输尿管狭窄手术中使用的导管其表面炎性渗出物数量明显多于其它原因行输尿管膀胱再植术中安置的导管。结论： 一般情况下，体内留置双“J”导管的时间不应超过4周。
中国图书资料分类法分类号 R699
PROSPECTIVE STUDY OFINDWELLING DOUBLE J STENT
Pang Yongru,Deng Yaoliang，Mo Zengnan
(Department of Urology,the First Affiliated Hospilal,Guangxi Medical University,Nanning530021)
Abstract Objective: Toinvestigate the change on the surface of double J stent with the time following indwellingin the human body and its relationship with original disease.Methods: Aprospective study of 26 double J stents in 25 patients was performed by bacteria cultureand scanning electron microscopy.Results: The inflammatory adherence andencrustation of these stents increases with the time the stent is indwelling.The quantityof this adhesion and encrustation in the stents indwelling for 4 weeks or above was foundto be more than those indwelling under 4 weeks.The double J stents used in the operationof upper urinary tract stone and ureteral stricture had more inflammatory adherence thanthose used in the ureterocystostomy for the other disease.Conclusion: Theresults suggest that the indwelling time of the stent should not exceed 4 weeks.
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