Related Experiment Video
Updated: Feb 13, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Successful replacement of a metallic hepaticogastrostomy stent dislocated during endoscopic retrograde
Hiroyuki Matsubayashi1, Hirotoshi Ishiwatari1, Toru Matsui1
1Division of Endoscdopy, Shizuoka Cancer Center, Nagaizumi, Suntogun, Shizuoka 411-8777, Japan.
Abstract:
In the present case with lower bile duct cancer, an endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) was placed because of repeated obstructions of biliary metallic stent. However, when the HGS was occluded, transpapillary duodenoscopic procedure was again required. During this transpapillary procedure, including biliary balloon cleaning and metallic stent deployment, the HGS stent was dislocated into the stomach. Fortunately, due to the complete fistulization, no bile peritonitis was recognized and an HGS stent could be replaced from the gastric wall three days later. Current case report alarms a risk of HGS stent dislocation when conducting endoscopic retrograde cholangiopancreatography (ERCP)-associated procedures after the placement of an HGS stent.
Related Concept Videos
Ecological Succession
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Bonding in Metals
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
Alkali Metals
Table 1: Properties of the alkali metals
Properties of Transition Metals

