Percutaneous Biliary Drainage
Percutaneous Biliary Drainage - Related Videos
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.
08:20
Percutaneous Cricothyrotomy
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA A surgical airway procedure is indicated when other forms of endotracheal intubation have failed and ventilation is worsening or not possible. This is the feared "can't intubate, can't ventilate" scenario, and in the emergency setting, cricothyrotomy is the surgical procedure of choice. Cricothyrotomy is preferred over tracheotomy because of the lower risk of complications, the predictable anatomy...
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.
08:14
Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration
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Cited by 18 •
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
Ultrasound helps guide the initial needle through the liver toward a bile duct, while fluoroscopy provides continuous X-ray imaging during access and catheter placement. Injected contrast outlines the biliary system, allowing the clinician to identify the obstructed ducts and select an appropriate drainage route. Together, these tools support precise access and clarify the anatomy before treatment.
This approach may be selected when endoscopic treatment is not possible or has already failed. Creating access through the liver provides another route to the obstructed biliary system, allowing bile to drain despite limitations that prevent an endoscopic solution. It can therefore relieve obstruction while also creating access for later treatment, surgery, or further evaluation.
Restoring bile flow can reduce jaundice and the infection associated with obstructed ducts. Drainage also lowers pressure-related complications caused by bile accumulation behind the blockage. These effects are relevant when obstruction results from tumors, stones, or postoperative injury, because the procedure addresses the impaired flow rather than only the underlying cause.
The clinician first uses ultrasound to guide a needle through the skin and liver into an obstructed bile duct. Contrast is then injected to map the biliary anatomy under fluoroscopy. After access is confirmed, a catheter is placed to provide external drainage or to support internal stenting, depending on the intended route for restoring bile flow.
External drainage uses a catheter to divert bile outside the body, whereas internal stenting provides a route that supports bile flow within the biliary system. Both are catheter-based strategies for managing obstruction, but they differ in where bile is directed. The selected option can provide immediate decompression or support subsequent treatment planning, according to the clinical situation.
Percutaneous biliary drainage can provide temporary control of obstruction while clinicians plan surgery or another treatment. By reducing jaundice, infection, and pressure-related complications, drainage may stabilize the biliary problem and preserve access to the ducts. Its diagnostic access also helps characterize the biliary system, making it useful beyond immediate symptom relief.