論文

査読有り
2017年3月

Endoscopic ultrasonography-guided choledochoduodenostomy using a newly designed laser-cut metal stent: Feasibility study in a porcine model

DIGESTIVE ENDOSCOPY
  • Kosuke Minaga
  • ,
  • Masayuki Kitano
  • ,
  • Chimyon Gon
  • ,
  • Kentaro Yamao
  • ,
  • Hajime Imai
  • ,
  • Takeshi Miyata
  • ,
  • Ken Kamata
  • ,
  • Shunsuke Omoto
  • ,
  • Mamoru Takenaka
  • ,
  • Masatoshi Kudo

29
2
開始ページ
211
終了ページ
217
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1111/den.12741
出版者・発行元
WILEY

Background and AimEndoscopic ultrasonography (EUS)-guided choledochoduodenostomy (EUS-CDS) is increasingly used in the treatment of malignant distal biliary obstruction. Standardized use of this technique requires improvements in instruments, including more convenient and safer devices. The present study was designed to evaluate the resistance force to migration (RFM) of a newly designed laser-cut metal stent and the feasibility of EUS-CDS using this stent.
MethodsThis experimental study used a porcine model of biliary dilatation involving five male pigs. The new stent is a fully covered laser-cut stent with anti-migration anchoring hooks. The RFM of the new stents was compared with those of three commercially available covered metal stents using a phantom model. In the animal study, after ligation of Vater's ampulla with endoscopic clips, the dilated common bile duct was punctured under EUS guidance, followed by EUS-CDS using the new stent. One week after the procedure, the stents were removed endoscopically and the fistulas were assessed after the pigs were killed. Technical feasibility and clinical outcomes were evaluated.
ResultsAmong the four stents, the new stent had the highest RFM. Metal stent placement was successful in all five pigs, with no procedure-related complications occurring during and 1 week after endoscopic intervention. All stents remained in place without migration and were removed easily using a snare. At necropsy, fistulas were created between the bile duct and duodenum in all pigs.
ConclusionEUS-CDS using a newly designed metal stent was feasible and effective in this porcine model of biliary dilatation.

リンク情報
DOI
https://doi.org/10.1111/den.12741
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/27681160
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000395069300010&DestApp=WOS_CPL
ID情報
  • DOI : 10.1111/den.12741
  • ISSN : 0915-5635
  • eISSN : 1443-1661
  • PubMed ID : 27681160
  • Web of Science ID : WOS:000395069300010

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