Enteral Stenting: An Overview of Gastrointestinal Luminal Endoprostheses

Enteral stents are tubular devices that can reestablish the patency of the gastrointestinal (GI) lumen in the setting of high-grade obstruction. Although they have been more commonly used in the palliation of malignant obstruction, they now have expanding roles for benign luminal strictures and stenoses. Familiarity with the indications and contraindications for enteral stent placement can enable consideration of a less invasive and morbid therapeutic option for many patients with symptomatic obstructions. The development of self-expandable metal stents and the subsequent emergence of lumen-apposing coaxial metal stents have expanded the role of enteral stents in the management of various GI disorders. This review contains 49 references, 5 figures, and 5 tables. Key Words:coaxial, enteral, gastrointestinal malignancy, lumen-apposing, obstruction, palliation, stent

A tale of two LAMS: a report of benign tissue ingrowth resulting in recurrent gastric outlet obstruction

Background and study aims Endoscopic ultrasound (EUS)-guided gastroenterostomy is a novel, off-label, procedure that has been facilitated by availability of a novel lumen apposing metal stent (LAMS) (Axios, Boston Scientific, Marlbourough Massachusetts, United States). The literature suggests its efficacy to be comparable to surgical gastrojejunostomy. In theory, this procedure overcomes the issues associated with woven enteral stents, which are subject to continuous, straightening, axial forces. We report the adverse event of tissue ingrowth in an Axios stent placed as an EUS-guided gastroduodenostomy, resulting in recurrence of gastric outlet obstruction, treated by a stent-inside-stent technique.

Enteral Stenting: An Overview of Gastrointestinal Luminal Endoprostheses

Enteral stents are tubular devices that can reestablish the patency of the gastrointestinal (GI) lumen in the setting of high-grade obstruction. Although they have been more commonly used in the palliation of malignant obstruction, they now have expanding roles for benign luminal strictures and stenoses. Familiarity with the indications and contraindications for enteral stent placement can enable consideration of a less invasive and morbid therapeutic option for many patients with symptomatic obstructions. The development of self-expandable metal stents and the subsequent emergence of lumen-apposing coaxial metal stents have expanded the role of enteral stents in the management of various GI disorders. This review contains 49 references, 5 figures, and 5 tables. Key Words: coaxial, enteral, gastrointestinal malignancy, lumen-apposing, obstruction, palliation, stent