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

Figure 1

Examples of proximal GOO lumen shapes and images of GOO tailored stents for GOO. The distal portion of the GOO tailored stents was semispherical, with a length of 20 mm and a diameter of 28 mm. The middle segment had a diameter of 20 mm. The overall length of the stents was 100 mm. (a) A cup-shaped obstruction and (b) a cup stent. The proximal ends were large cup-shaped (53.3 mm ± 5.5 mm in diameter, 15 and 20 mm in length). (c) A funnel-shaped obstruction and (d) a funnel stent. The proximal ends were funnel-shaped (33.6 mm ± 3.6 mm in diameters, 25 mm and 30 mm in lengths). (e) Standard uncovered stent. The length of the stents was 100 mm and the ends were semispherical with diameters of 28 mm and length of 20 mm.