Difficult removal of fully covered Self Expandable Metal Stents (SEMS) for benign biliary strictures: The %26quot;SEMS in SEMS%26quot; technique

作者：Tringali Andrea^*; Blero Daniel; Boskoski Ivo; Familiari Pietro; Perri Vincenzo; Deviere Jacques; Costamagna Guido

来源：Digestive and Liver Disease, 2014, 46(6): 568-571.

DOI：10.1016/j.dld.2014.02.018

• Benign biliary stricture
• Self Expandable Metal Stent
• Fully covered SEMS
• Ingrowth
• Overgrowth
• Stent migration

Background: Removal of biliary Fully Covered Self Expandable Metal Stents can fail due to stent migration and/or hyperplastic ingrowth/overgrowth. %26lt;br%26gt;Methods: A case series of 5 patients with benign biliary strictures (2 post-cholecystectomy, 2 following liver transplantation and 1 related to chronic pancreatitis) is reported. The biliary stricture was treated by temporary insertion of Fully Covered Self Expandable Metal Stents. Stent removal failed due to proximal stent migration and/or overgrowth. Metal stent removal was attempted a few weeks after the insertion of another Fully Covered Metal Stent into the first one. %26lt;br%26gt;Results: The inner Fully Covered Self Expandable Metal Stent compressed the hyperplastic tissue, leading to the extraction of both the stents in all cases. Two complications were reported as a result of the attempt to stents removal (mild pancreatitis and self-limited haemobilia). %26lt;br%26gt;Conclusion: In the present series, the %26quot;SEMS in SEMS%26quot; technique revealed to be effective when difficulties are encountered during Fully Covered Self Expandable Metal Stents removal.

• 出版日期2014-6