Temporary placement of covered self-expandable metal stents in benign biliary strictures: a new paradigm? (with video) - PubMed (original) (raw)
Clinical Trial
Temporary placement of covered self-expandable metal stents in benign biliary strictures: a new paradigm? (with video)
Michel Kahaleh et al. Gastrointest Endosc. 2008 Mar.
Abstract
Background: Benign biliary strictures (BBS) are usually managed with plastic stents, whereas placement of uncovered metallic stents has been associated with failure related to mucosal hyperplasia.
Objective: We analyzed the efficacy and safety of temporary placement of a covered self-expanding metal stent (CSEMS) in BBS.
Design: Patients with BBS received temporary placement of CSEMSs until adequate drainage was achieved; confirmed by resolution of symptoms, normalization of liver function tests, and imaging.
Setting: Tertiary-care center with long-standing experience with CSEMSs.
Patients: Seventy-nine patients with BBS secondary to chronic pancreatitis (32), calculi (24), liver transplant (16), postoperative biliary repair (3), autoimmune pancreatitis (3), and primary sclerosing cholangitis (1).
Intervention: ERCP with temporary CSEMS placement. Removal of CSEMSs was performed with a snare or a rat-tooth forceps.
Main outcome measurements: End points were efficacy, morbidity, and clinical response.
Results: CSEMSs were removed from 65 patients. Resolution of the BBS was confirmed in 59 of 65 patients (90%) after a median follow-up of 12 months after removal (range 3-26 months). If patients who were lost to follow-up, developed cancer, or expired were considered failures, then an intent-to-treat global success rate of 59 of 79 (75%) was obtained. Complications associated with placement included 3 post-ERCP pancreatitis (4%), 1 postsphincterotomy bleed (1%), and 2 pain that required CSEMS removal (2%). In 11 patients (14%), the CSEMS migrated. In 1 patient, CSEMS removal was complicated by a bile leak that was successfully managed with plastic stents.
Limitation: Pilot study from a single center.
Conclusions: Temporary CSEMS placement in patients with BBS offers a potential alternative to surgery.
Comment in
- Covered self-expanding metal stents in benign biliary strictures: not yet a "new paradigm" but a promising alternative.
Costamagna G. Costamagna G. Gastrointest Endosc. 2008 Mar;67(3):455-7. doi: 10.1016/j.gie.2007.10.006. Gastrointest Endosc. 2008. PMID: 18294507 No abstract available.
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