| New 10F soft and pliable polyurethane stents decrease the migration rate compared with conventional 10F polyethylene stents in hilar biliary obstruction: results of a pilot study. | |
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MedLine Citation:
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PMID: 22301338 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: Migration of biliary stents is a well-documented problem that can result in a variety of complications. The newly designed polyurethane (PU) stent, which is made of a soft and pliable material, may prevent distal and proximal stent migration. OBJECTIVE: To compare the migration rate of the PU stent with that of the conventional polyethylene stent (PE). DESIGN: Prospective, comparative, randomized trial. SETTING: Tertiary academic medical centers. PATIENTS: Fifty patients with a hilar stricture who had not undergone a previous drainage procedure. INTERVENTION: In patients with hilar stricture, random assignment of either a PU stent or PE stent. MAIN OUTCOME MEASUREMENT: The rate of early proximal or distal migration before stent occlusion. RESULTS: Overall and distal migration rates were significantly lower in the PU group than in the PE group (4.5% vs 29%, P = .032 and 4.5% vs 26.1%, P = .049, respectively). There was no significant difference between the migration rate in benign and malignant biliary strictures (5.9% vs 21.4%, P = .167). Sex, stent length, preprocedure bilirubin level, and Bismuth type were not associated with migration rate in either the PU or PE group. Median stent patency was 148 days (range 36-224 days) in the PU group and 151 days (range 40-241 days) in the PE group (P = .891). LIMITATIONS: Small sample size. CONCLUSIONS: Use of the new PU stent, which is soft and pliable, decreased distal migration. The PU stent patency rates appear similar, but this study is not powered to demonstrate equivalency of patency. |
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Authors:
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Young Koog Cheon; Hyoung-Chul Oh; Young Deok Cho; Tae Yoon Lee; Chan Sup Shim |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-31 |
Journal Detail:
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Title: Gastrointestinal endoscopy Volume: - ISSN: 1097-6779 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-2-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0010505 Medline TA: Gastrointest Endosc Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Digestive Disease Center, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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