Covered Self-Expandable Metal Stents With an Anti-Migration System Improve Patency Duration Without Increased Complications Compared With Uncovered Stents for Distal Biliary Obstruction Caused by Pancreatic Carcinoma: A Randomized Multicenter Trial

Abstract

By preventing tumor ingrowth and migration, covered SEMSs with an anti-migration system had a longer duration of patency than uncovered SEMSs, which recommends their use in the palliative treatment of patients with biliary obstruction due to pancreatic carcinomas.

A Case Series: Outcomes of Endoscopic Biliary Self-Expandable Metal Stent for Malignant Biliary Obstruction with Surgically Altered Anatomy

“…The specific advantages and disadvantages of each type of stent remain unclear [13][14][15][16][17][18][19][20]. However, previous studies have concluded that the time to RBO is longer for CSEMS than UCSEMS [13,[18][19][20].…”

Migration of a self expandable metallic stent in malignant esophageal-pleural fistula - A complication that needs active surveillance

“…Endoscopic clipping [15] can reduce the hazard of stent migration, especially in those related with esophago-pleural fistulas without luminal obstruction. Covered SEMS with an anti-migration system [16] with uncovered long flared ends has a longer life and lesser risk of migration; therefore they are beneficial in the palliative treatment of patients.…”

Partially covered versus uncovered self-expandable nitinol stents with anti-migration properties for the palliation of malignant distal biliary obstruction: A randomized controlled trial

“…SEMSs are considered superior to plastic stents with large bores in terms of stent patency [3][4][5][6], but it remains challenging to determine which type of SEMS is optimal for the palliation of distal biliary obstruction due to stent-related adverse events that cause recurrent biliary obstruction [7][8][9][10][11][12][13][14][15][16][17][18][19].…”