Biliary Stone Removal
Biliary Stone Removal - Related Videos
04:32
Biliary System Resin Casting: A Technique for Analyzing 3D Architecture of Biliary System in Murine Model Using Radiopaque Resin Injection
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2025
This video describes the procedure for biliary system resin casting, for understanding 3D biliary architecture. This technique provides insights into the internal diameter and network connectivity of the biliary system, which could be used for liver regeneration analysis.
04:02
Laparoscopic Cholecystectomy with Indocyanine Green Fluorescence: Choledochoscopic Stone Extraction and Primary Duct Suture
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2025
The integrated technique described in this protocol achieves real-time biliary mapping via indocyanine green (ICG) fluorescence, minimally invasive stone clearance under direct visualization, and secure primary duct repair (6-0 PDS), eliminating T-tube drainage.
07:44
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
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Cited by 1 •
2022
Endoscopic Ultrasound-Guided Biliary Drainage (EUS-BD) is an alternative method of biliary decompression in malignant biliary obstruction. Here we describe the technique of EUS guided-Hepaticogastrostomy (EUS-HGS) in a case of unresectable malignant hilar biliary obstruction.
08:14
Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration
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Cited by 17 •
2015
To help assess the molecular mechanisms underlying zebrafish biliary-driven liver regeneration, we established a liver injury model in which the nitroreductase-expressing hepatocytes are genetically ablated upon metronidazole treatment. In this protocol, we describe how to adeptly manipulate, monitor and analyze hepatocyte ablation and biliary-driven liver regeneration.
04:12
Acute Biliary Pancreatitis Model: A Method to Generate Acute Biliary Pancreatitis Mouse Model via Pancreatic Duct Infusion
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2025
This video describes the procedure for the generation of a mouse model with acute biliary pancreatitis via pancreatic infusion of sodium taurocholate. This model helps study pathophysiological changes induced by sodium taurocholate in the pancreas.
FAQs
During ERCP, clinicians access the biliary tree and enlarge the duct opening when necessary. A balloon or basket can then capture and remove a stone after access is established. This sequence combines targeted entry with mechanical extraction, helping restore bile flow while limiting treatment to the obstructed duct.
Larger stones may not be removable through a single straightforward extraction. In those situations, clinicians may fragment the stone before removal or plan staged treatment rather than rely on one attempt. This approach addresses stone size as a technical factor and can support progressive clearance of the biliary tree.
Imaging helps clinicians identify where stones are located and characterize the biliary problem before treatment. For ductal stones, that information supports planning endoscopic access and determining whether duct opening enlargement, balloon extraction, basket use, fragmentation, or staged treatment may be needed. It also informs later decisions about gallbladder management.
A typical endoscopic approach first establishes access to the biliary tree, then enlarges the duct opening if needed, and finally uses a balloon or basket to extract the stone. When direct extraction is not sufficient, fragmentation or staged treatment may be incorporated. The procedure is therefore adapted to the technical demands of the obstruction.
Removing a ductal stone can rapidly relieve jaundice and biliary pain while addressing the obstruction that can contribute to infection or inflammation. These outcomes explain why the intervention is clinically important beyond simply retrieving a stone. Restored flow provides an immediate treatment benefit, while complication prevention remains a central goal.
After a ductal stone is removed, clinicians may still need to decide how to manage the gallbladder. Extraction addresses the immediate ductal obstruction, whereas subsequent gallbladder management is a separate clinical decision informed by the broader biliary situation. This distinction explains why successful ERCP may guide, rather than conclude, the overall treatment plan.