New methods Clinical endoscopy| Volume 87, ISSUE 4, P1138-1146, April 2018

Long-term outcomes of EUS-guided choledochoduodenostomy using a lumen-apposing metal stent for malignant distal biliary obstruction: a prospective multicenter study

Published:August 23, 2017DOI:

      Background and Aims

      EUS-guided choledochoduodenostomy (EUS-CDS) using conventional tubular stents has been successfully performed. However, EUS-CDS carries a high risk of bile leakage with attendant adverse events. This study aimed to prospectively evaluate the long-term outcome of EUS-CDS using a dedicated lumen-apposing metal stent (LAMS).


      Nineteen patients (mean age, 70.6 years; 12 men) with unresectable malignant diseases were treated in 5 tertiary referral centers. EUS-CDS was performed using a fully covered LAMS with a cautery-enhanced delivery system for EUS-CDS.


      All stents were successfully deployed without any adverse events. Jaundice improved in 79% of the patients within 7 days and finally in 95%. In 95% of patients the stents remained in good anastomotic position without migration or dislocation during the follow-up period (median, 184 days; range, 12-819). One patient had a fever the day after stent placement. During the follow-up period 5 patients had secondary stent obstruction because of food residue (n = 2), kinking (n = 1), suspected tumor ingrowth (n = 1), and spontaneous dislodgement (n = 1). Five patients developed obstruction in the second portion of the duodenum. The overall adverse event rate was 36.8% (7/19), mostly with mild severity.


      This study revealed that the novel dedicated LAMS used has high technical and clinical success rates for EUS-CDS. The adverse events and patency rates are inferior to the historically reported data of a conventional transpapillary metal stent. Development of a more suitable dedicated LAMS is anticipated.


      EUS-CDS (EUS-guided choledochoduodenostomy), LAMS (lumen-apposing metal stent), SEMS (self-expandable metal stent)
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