Endoscopic double-metallic stenting for malignant biliary and duodenal obstructions

Area of Science:

• Gastroenterology
• Interventional Endoscopy

Background:

• Malignant biliary obstructions are often treated with endoscopic metallic stenting.
• Combined biliary and duodenal obstructions present technical challenges for standard stenting.
• Existing duodenal stents have mesh designs unsuitable for transpapillary biliary stenting.

Purpose of the Study:

• To evaluate the feasibility and usefulness of novel endoscopic procedures for double-stent placement in managing combined malignant biliary and duodenal obstructions.

Main Methods:

• Utilized a through-the-scope duodenal metallic stent with a cross-wired, unfixed structure allowing biliary stent insertion through its mesh.
• Performed transpapillary endoscopic biliary stent placement through the duodenal stent lumen.
• Employed endoscopic ultrasound (EUS)-guided biliary drainage via the duodenal bulb.

Main Results:

• Successfully achieved biliary metallic stenting through the choledochoduodenal tract.
• Demonstrated effective biliary drainage using the novel double-stent technique.
• EUS-guided stenting proved effective when transpapillary approach failed.

Conclusions:

• Combined endoscopic biliary and duodenal stenting through a novel duodenal stent mesh is feasible and effective.
• EUS-guided biliary stenting is a viable option for complex cases, especially after failed transpapillary attempts.
• Ongoing advancements in endoscopic devices and procedures are crucial for managing complicated strictures.