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Symptomatic stent cast.

John Keohane¹, Michael Moore, Seamus O'Mahony

¹Department of Gastroenterology and Hepatology, Cork University Hospital, Cork, Ireland. keohanejohn@gmail.com

Journal of Clinical Gastroenterology

|January 23, 2008

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Biliary stent occlusion, a complication of endoscopic stent insertion, can be caused by a rare "stent cast." This case report details successful retrieval and recovery, offering new insights into stent occlusion causes.

Area of Science:

Gastroenterology
Endoscopic procedures
Biliary tract diseases

Background:

Biliary stent occlusion is a common complication following endoscopic stent insertion, often necessitating repeat procedures.
The exact etiology of biliary stent occlusion is debated, with bacterial attachment being a frequently studied factor.
Antibiotic prophylaxis has shown promise in prolonging stent patency in some studies.

Observation:

A case of biliary stent occlusion was observed in an 86-year-old woman presenting with obstructive jaundice.
The occlusion was found to be caused by a cast of a previously inserted straight biliary stent, termed a "stent cast."
This represents the first reported instance of a biliary stent cast.

Findings:

The biliary stent cast was successfully retrieved using a lithotripter.

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The patient experienced an uneventful recovery following the retrieval procedure.

This finding suggests a novel mechanism for biliary stent occlusion beyond bacterial colonization.

Implications:

The identification of a "stent cast" as a cause of biliary occlusion expands the understanding of stent-related complications.
This case highlights the importance of considering unusual etiologies in cases of refractory or unexplained biliary stent occlusion.
Further research may be warranted to investigate the incidence and formation of stent casts.