Related Experiment Video
Updated: Jul 15, 2025

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Duodenoscope insertion difficulty due to perigastric adhesions overcome using an overtube
Hiroshi Kawakami1, Naomi Uchiyama1, Souichiro Ogawa1
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
Abstract:
Kawakami and colleagues report a case of duodenoscope insertion difficulty through the pyloric ring due to perigastric adhesions which was successfully overcome using an overtube. The overtube can be attached to both standard and therapeutic duodenoscopes, allowing successful biliary or pancreatic intervention in patients in whom duodenoscopic insertion is challenging.
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