Document Detail


Ureteral stent encrustation, incrustation, and coloring: morbidity related to indwelling times.
MedLine Citation:
PMID:  22007916     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: Ureteral stents are a fundamental part of many urologic procedures. Serious complications, including migration, fragmentation, and stone formation, still occur, especially when stents have been forgotten for a long time. No widespread consensus for the type or indwelling time to avoid ureteral stent complications has been reached, however. We investigated the correlation between the indwelling time and encrustation, incrustation, coloration, and resistance to removal.
PATIENTS AND METHODS: A total of 330 ureteral stents in 181 patients were examined.
RESULTS: Overall, 155 (47.0%) stents were encrusted, and the encrustation rate was 26.8% at less than 6 weeks, 56.9% at 6 to 12 weeks, and 75.9% at more than 12 weeks. A total of 46 (13.9%) stents resisted removal, and 3 of these could not be removed by cystoscopy. The median indwelling time was 72 (14-124) days for stents that resisted removal and 31 (30-60) days for irremovable stents. The frequency of encrustation with coloration was higher than that without coloration in the period of less than 6 weeks and the period between 6 to 12 weeks of indwelling time.
CONCLUSIONS: In our study, although ureteral stent encrustation was related to the indwelling time, heavily encrusted ureteral stents necessitating additional procedures for removal occurred within an indwelling time of 3 months. The exact interval for removal of an indwelling ureteral stent to avoid additional procedures for removal is therefore difficult to determine.
Authors:
Takashi Kawahara; Hiroki Ito; Hideyuki Terao; Minoru Yoshida; Junichi Matsuzaki
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Publication Detail:
Type:  Journal Article     Date:  2011-10-18
Journal Detail:
Title:  Journal of endourology / Endourological Society     Volume:  26     ISSN:  1557-900X     ISO Abbreviation:  J. Endourol.     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-02-07     Completed Date:  2012-06-05     Revised Date:  2013-05-20    
Medline Journal Info:
Nlm Unique ID:  8807503     Medline TA:  J Endourol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  178-82     Citation Subset:  IM    
Affiliation:
Department of Urology, Ohguchi Higashi Hospital, Yokohama, Japan. takashi_tk2001@yahoo.co.jp
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Catheters, Indwelling / adverse effects*
Color
Device Removal
Female
Humans
Male
Middle Aged
Morbidity*
Stents / adverse effects*
Time Factors
Ureter / surgery*
Young Adult
Comments/Corrections
Comment In:
J Endourol. 2013 Apr;27(4):506   [PMID:  23268660 ]
J Endourol. 2012 Jul;26(7):924-5; author reply 926   [PMID:  22494442 ]
J Endourol. 2013 Apr;27(4):507   [PMID:  23496319 ]

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