article · European Journal of Gastroenterology & Hepatology
Biliary stent migration occurs at an observed rate of 8.4 per cent. Several clinical and procedural risk factors contribute to this complication, including a dilated common bile duct, the execution of a wide sphincterotomy, and biliary balloon dilation. Stent characteristics and dwell time also influence outcomes, as wide, straight stents left in place for longer than one month migrate easily. When migration occurs, the displaced devices travel intraluminally, lodging within the common bile duct, the duodenum, or the colon. Despite the risk of displacement, all retained migrated stents were successfully retrieved using endoscopic techniques, demonstrating that standard endoscopic management can effectively resolve these occurrences.
Biliary stents are widely used to maintain bile flow, but device displacement remains a known complication. Identifying clinical factors that trigger migration, such as specific stent geometries and preceding duct procedures, helps clinicians anticipate risks. Recognising that displaced devices can be safely retrieved endoscopically provides practical reassurance regarding patient safety during biliary interventions.
These clinical findings provide operational insights for medical device manufacturers developing next-generation biliary stents. Demonstrating that wide, straight stents migrate when left for over a month highlights a clear need for improved anti-migration designs and anchoring mechanisms. The evidence is applied and derived from clinical practice, which could inform immediate improvements in stent manufacturing and endoscopic protocols, although the abstract does not introduce a specific commercial product.
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Biliary stent migration occurs at a rate of 8.4%. Stents do migrate because of dilated CBD, wide sphincterotomy, and biliary balloon dilation. Furthermore, wide, straight stents inserted for more than 1 month easily migrate. The migrated stents migrated intraluminal in the CBD, duodenum or the colon. All the retained migrated stents were retrieved endoscopically.
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DOI: 10.1097/meg.0000000000002078
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