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Ureteral stent failure in pediatric patients under 10 years: occurrence and risk factors

 Yong Seung Lee  ;  Young Jae Im  ;  Sang Woon Kim  ;  Hee Seo Son  ;  Neddy Lee Lim  ;  Sang Won Han 
 UROLOGY, Vol.85(3) : 659-663, 2015 
Journal Title
Issue Date
Child ; Child, Preschool ; Cohort Studies ; Female ; Humans ; Male ; Prosthesis Failure* ; Retrospective Studies ; Risk Assessment ; Risk Factors ; Stents* ; Ureter/surgery*
OBJECTIVE: To examine the occurrence of ureteral stent failure in pediatric patients aged <10 years and to determine risk factors for failure. METHODS: We performed a retrospective cohort analysis of 100 patients who underwent ureteral stent insertion between January 2006 and December 2013. All patients were aged <10 years and were followed up until ureteral stent removal. Information regarding patient demographics, reason for stent insertion, duration of stent maintenance, stent diameter and length, and postoperative results was collected. Risk factors for stent failure were analyzed. RESULTS: Ureteral stenting was performed in 114 ureter units. The median age at stenting was 34.1 months (interquartile range [IQR], 8.1-71.2 months), and the median duration of stent maintenance was 35.0 days (IQR, 21.0-44.3 days). A 3-Fr stent was used in 39.5% of patients. Stent failure was observed in 11 ureter units (9.6%) at a median of 11.5 days (IQR, 7.8-24.5 days) after insertion, and the stent was subsequently removed. Use of a 3-Fr ureteral stent was the only risk factor for the development of stent failure; the failure rate was 20.0% with this stent diameter. CONCLUSION: Ureteral stenting was a useful procedure with a high success rate, even in patients aged <10 years. A 3-Fr ureteral stent was the only risk factor for stent failure; its substantial failure rate should be considered when deciding whether to insert a stent. Also, short-term re-evaluation after ureteral stent insertion is mandatory, especially with 3-Fr ureteral stents.
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1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sang Woon(김상운) ORCID logo https://orcid.org/0000-0002-5790-1948
Lim, Neddy Lee(림네디리)
Son, Hee Seo(손희서) ORCID logo https://orcid.org/0000-0001-7198-7816
Lee, Yong Seung(이용승) ORCID logo https://orcid.org/0000-0003-3778-9888
Im, Young Jae(임영재)
Han, Sang Won(한상원) ORCID logo https://orcid.org/0000-0003-0941-1300
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