ArticleTherapeutic advances in gastroenterology2025
Prospective evaluation study of a novel endoscopic revision technique after metal stent deployment for hepatic hilar obstruction.
Article in Therapeutic advances in gastroenterology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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 in the hepatic bile duct failed on either side, the technique was considered a technical failure. Results: A total of 20 patients were prospectively enrolled in this study. The technical success rate was 90% (18/20). The mean procedure time was 20.6 ± 8.5 min, and clinical success was obtained in 94.4% of patients (17/18). The mean duration of stent patency after endoscopic revision was 118.2 days. Finally, adverse events were observed in three patients (pancreatitis, Conclusion: In conclusion, the molting technique might be helpful as an option for endoscopic revision for multiple UCSEMS deployments for selected patients. Trail registration: University Hospital Medical Information Network 000044572.
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