Endoscopic Stent Placement for Gastric Outlet Obstruction

Gastric outlet obstruction (GOO) is caused by either intrinsic or extrinsic obstruction of the pylorus or duodenum. The technical success rates of duodenal stenting for malignant GOO are > 90%, and 60–80% of patients are able to eat at least soft mechanical diets. Combined endoscopic biliary and duodenal self-expanding metal stent (SEMS) placement is safe and effective for palliation in malignant biliary and duodenal obstruction. This video manuscript describes endoscopic techniques in gastroduodenal stenting, procedure-related complications, and two commonly used duodenal SEMS: Evolution® Duodenal (Cook Medical) and WallFlex® Duodenal (Boston Scientific) stents. This article is part of an expert video encyclopedia.