Removal of Duckbill-type laser-cut anti-reflux metal stents: Clinical evaluation and in vitro study.

ABSTRACT:

Objectives

Duckbill-type metal stent (DMS) was the first laser-cut biliary metal stent with an anti-reflux valve. Removal of DMS is believed to be difficult and relevant reports are scarce. This study aims to investigate the feasibility of DMS removal.

Methods

We retrospectively analyzed patients who underwent DMS removal between June 2019 and March 2022 to evaluate success rates and factors affecting outcomes. In addition, six different methods of DMS removal were reproduced in vitro, varying removal devices, angle of applied force, and grasped location. Extraction resistance, the distance of forceps stroke, and stent length after removal were compared.

Results

Forty patients were enrolled, and DMS removal was successful in 31 cases (78%). No adverse events were obse

SUBMITTER: Yamada Y 

PROVIDER: S-EPMC9950539 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature