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KMID : 0359020110420010011
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Korean Journal of Gastrointestinal Endoscopy
2011 Volume.42 No. 1 p.11 ~ p.19
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The Efficacy and Safety of Fully Covered Self-expandable Metal Stents in Benign Extrahepatic Biliary Strictures
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Kim Byeong-Uk
Goo Ja-Chung
Cho Young-Shim
Han Joung-Ho
Yoon Soon-Man
Chae Hee-Bok
Park Seon-Mee
Youn Sei-Jin
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Abstract
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Background/Aims: For the endoscopic treatment of benign biliary strictures (BBS), it has been a drawback to use plastic stents or uncovered self-expandable metal stents. We investigated the efficacy and safety of temporary placing fully covered self-expandable metal stents (FCSEMS) in BBS.
Methods: We enrolled 12 cases that followed up more than 6 months after insertion of a FCSEMS in BBS via ERCP. The cohort consisted of 9 patients with recurrent cholangitis, 2 patients with postcholecystectomy and 1 patient with chronic pancreatitis. The efficacy was assessed according to the resolution of strictures and also the restricture after stent removal, and the safety was evaluated according to the complications associated with stent placement. Finally, the removability of FCSEMSs was assessed.
Results: The median time of FCSEMS placement was 6.0 months. Resolution of the BBS was confirmed in 8 cases (67%) after a median post-removal follow-up of 8.5 months. Restricture after stent removal happened in 4 cases (33%). The complications were severe abdominal pain (n=2), pancreatic abscess (n=1) and stent migration (n=6). In 7 cases, all the FCSEMSs were successfully removed by grasping them with forceps.
Conclusions : Temporary placement of a FCSEMS in BBS showed good therapeutic effects, relative safety and easy removability. Further evaluation is needed for determining the causes of restricture and for developing a new stent with antimigration features.
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KEYWORD
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Fully covered self-expandable metal stent, Benign biliary strictures
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