WallFlex and Evolution Duodenal Stents Have Similar Efficacy but Different Safety for Malignant Gastric Outlet Obstruction.

Background: The WallFlex and Evolution stents are the most widely used duodenal stents, but no study has compared them.

Aims: We aimed to compare the efficacy and safety of WallFlex and Evolution stents for malignant gastric outlet obstruction.

Methods: We included all consecutive patients who were treated for malignant gastric outlet obstruction with WallFlex or Evolution self-expandable metal uncovered duodenal stents between 2013 and 2020.

Multicenter randomized trial comparing diagnostic sensitivity and cellular abundance with aggressive versus standard biliary brushing for bile duct stenosis without mass syndrome.

BACKGROUND : The diagnosis of cholangiocarcinoma in patients with a biliary stricture without mass syndrome can be obtained by biliary brushing with a sensitivity of ~50 %. We performed a multicenter randomized crossover trial comparing the aggressive Infinity brush with the standard RX Cytology Brush. The aims were to compare sensitivity for cholangiocarcinoma diagnosis and cellularity obtained.

Efficacy and Safety of Endoscopic Primary Prophylaxis of Bleeding in Children With High-Risk Gastroesophageal Varices.

Objectives: Primary prophylaxis of bleeding is debated in children with gastroesophageal varices; one of the reasons is the limited number of studies concerning its efficacy and safety. We report our experience with endoscopic primary prophylaxis.

Methods: From 2006 to 2019, 145 children (median age, 3.