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Benefits of side‐by‐side deployment of 6‐mm covered self‐expandable metal stents for hilar malignant biliary obstructions
Author(s) -
Yoshida Tsukasa,
Hara Kazuo,
Imaoka Hiroshi,
Hijioka Susumu,
Mizuno Nobumasa,
Ishihara Makoto,
Tanaka Tsutomu,
Tajika Masahiro,
Niwa Yasumasa,
Yamao Kenji
Publication year - 2016
Publication title -
journal of hepato‐biliary‐pancreatic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.63
H-Index - 60
eISSN - 1868-6982
pISSN - 1868-6974
DOI - 10.1002/jhbp.372
Subject(s) - medicine , stent , software deployment , surgery , radiology , computer science , operating system
Background The best way to perform endoscopic stenting for hilar malignant biliary obstruction (HMBO) is under discussion. Recently, a 6‐mm covered self‐expandable metal stent (CSEMS) has become available. In this article, the results of side‐by‐side (SBS) 6‐mm CSEMS deployment for HMBO are reported. Methods A total of 22 patients, 32 procedures of SBS 6‐mm CSEMS [16 fully covered (FCSEMS), 16 partially covered (PCSEMS)] deployment for HMBO, were prospectively enrolled from November 2011 to June 2015 and retrospectively analyzed. Technical and clinical success rates, stent patency period, complications, and re‐intervention success rates were analyzed. Results The overall/FCSEMS/PCSEMS technical and clinical success rates were 96.9%/93.8%/100% and 93.5%/100%/87.5%, respectively. The mean stent patency period was 95/113/68 days. Early and late complication rates were 3.1%/0%/6.3% and 6.3%/12.5%/0%, respectively. Stent exchange was attempted in 12 procedures, and the stent exchange success rate was 83.3%/100%/75%. Conclusions This is the first report of SBS 6‐mm CSEMS deployment for HMBO. This procedure has high technical and clinical success rates and the advantages of ease of performance and a high success rate of re‐intervention. Outcomes appear better with FCSEMS than with PCSEMS deployment. Since stent patency is still controversial, large‐sample studies are needed.