A Multicenter Randomized Controlled Trial of Malignant Gastric Outlet Obstruction: Tailored Partially Covered Stents (Placed Fluoroscopically) versus Standard Uncovered Stents (Placed Endoscopically).

The aim of our study is to compare the efficacy and safety of "outlet-shape" tailored stents with standard stents for the management of distal gastric cancer causing gastric outlet obstructions (GOOs) with varying gastric cavity shapes and sizes. To determine the shape and size of the GOOs, stomach opacifications were performed using contrast media before stenting. Two basic shapes of the residual cavity of the proximal GOO were observed: cup shaped or approximately cup shaped and funnel shaped or approximately funnel shaped.

Individualization of metal stents for management of gastric outlet obstruction caused by distal stomach cancer: a prospective study.

Background: The use of various kinds of metal stents has emerged as an effective palliative treatment for malignant gastric outlet obstruction (GOO). However, most of these metal stents were designed for use in the esophagus or intestine and have a high incidence of stent obstruction and stent migration when used elsewhere.

Objective: To evaluate the efficacy and safety of individualized stents (designed according to the shape and size of the GOO) in order to determine whether such stents could reduce the incidence of stent obstruction and migration.