A Comparison of a Fully Covered Self-expandable Metal Stent With an External Anchoring Plastic Stent and Uncovered Stent

A Comparison of a Fully Covered Self-expandable Metal Stent With an External Anchoring Plastic Stent and Uncovered Stent: Prospective Randomized Multicenter Study

Multi-center, randomized controlled study fc-SEMS with anchoring plastic stent vs uc-SEMS in malignant biliary obstruction

This study is multi-center, randomized controlled study to compare the stent patency in malignant biliary obstruction. The patency of fully covered self expandable metal stent with external anchoring plastic stent was compared with that of uncovered self expandable metal stent.

Inclusion Criteria:

• Adults with 19 years of age or older
• Those who voluntarily consented to the trial and signed a written consent
• Inoperable malignant biliary obstruction

Exclusion Criteria:

• Previous surgical biliary drainage
• Patients continuosly requiring percutaneous transhepatic biliary drainage
• History of biliary drainage with metal stent
• Biliary obstruction located in hilum or intrahepatic duct
• Patients with life expectancy of 3 months or less
• On pregnancy
• Unable to underwent endoscopic procedures