Prospective evaluation study of a novel endoscopic revision technique after metal stent deployment for hepatic hilar obstruction.

ABSTRACT:

Background

Malignant hilar biliary obstruction (MHBO) can be treated by stent deployment under endoscopic retrograde cholangiopancreatography. In case of unresectable MHBO, uncovered self-expandable metal stent (UCSEMS) deployment might be recommended. However, endoscopic revision is challenging. To overcome this issue, we previously described a novel revision technique called the "molting technique," but its technical feasibility is still unclear.

Objective

The present study aimed to evaluate the technical feasibility of the molting technique in a prospective setting.

Design

A single-center prospective study.

Methods

Technical success was defined as successful endoscopic revision using the molting technique. If endoscopic revision using the molting technique i

SUBMITTER: Kamawaki K 

PROVIDER: S-EPMC12317232 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature