Risk factors for migration of retrievable covered expandable metallic stent in patients with persistent benign ureter strictures

Purpose The purpose of this study is to evaluate the incidence, risk factors, and salvage management of retrievable covered expandable metallic stent (RCEMS) migration in patients with persistent benign ureter strictures. Materials and methods A retrospective study was performed on 117 consecutive p...

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Bibliographic Details
Published in:World journal of urology 2024-04, Vol.42 (1), p.273-273, Article 273
Main Authors: Xu, Yuyu, Li, Xiezhao, Cai, Zhiduan, Chen, Shuangxing, Zhu, Rui, Zhuang, Haishan, Wan, ShawPong, Xu, Guibin
Format: Article
Language:English
Subjects:
Adult
Aged
Balloon treatment
Constriction, Pathologic
Creatinine
Device Removal
Female
Foreign-Body Migration - epidemiology
Humans
Hydronephrosis
Implants
Kidney transplantation
Male
Medicine
Medicine & Public Health
Middle Aged
Multivariate analysis
Nephrology
Oncology
Original
Original Article
Prosthesis Design
Prosthesis Failure
Retrospective Studies
Risk Factors
Self Expandable Metallic Stents
Stents - adverse effects
Stricture
Ureter
Ureteral Obstruction - etiology
Ureteral Obstruction - surgery
Ureteral Obstruction - therapy
Urology
Young Adult
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Summary:Purpose The purpose of this study is to evaluate the incidence, risk factors, and salvage management of retrievable covered expandable metallic stent (RCEMS) migration in patients with persistent benign ureter strictures. Materials and methods A retrospective study was performed on 117 consecutive patients who underwent implantation of RCEMS. Univariate and multivariate analyses were used to identify prognostic factors for stent migration, including stricture location and length, hydronephrosis–cortex ratio, ureteral dilation, and the diameter of the narrowest portion of the stricture. Results Stent migration occurred in 22 (19.5%) of 113 patients who met inclusion criteria. Of the 22 patients, 16 (72.7%) had ordinary ureteral stricture, 3 (13.6%) had stricture in transplanted kidneys, and 3 patients (13.6%) had ureter stricture in orthotopic neobladders. The mean creatinine for the entire cohorts showed significant improvement ( p  = 0.038). Multivariate analysis identified the following prognostic factors for migration: distal ureteral stricture ( p  = 0.006), patients who underwent balloon dilation ( p  = 0.003), hydronephrosis–cortex ratio ≧10 ( p  = 0.017), larger diameter of wasting of RCEMS ( p  
ISSN:1433-8726
0724-4983
1433-8726
DOI:10.1007/s00345-024-04986-3