Why does bile leak around an indwelling biliary drain? Bile leakage around an indwelling biliary drain can occur for several reasons, and it is a potential complication that needs to be addressed promptly. Some common reasons for bile leakage include: Malposition of the Biliary Drain: If the biliary drain is not correctly placed or becomes …
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When should an internal or external drain be capped? When should this drain be uncapped? After a de novo biliary drainage, catheters are almost always attached to a bag for gravity drainage for a period of time. External drainage helps to decompress the biliary system. A pressurized system may promote bacterial translocation into the hepatic …
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Basic steps required to perform percutaneous transhepatic biliary drainage If indicated by the diagnostic percutaneous transhepatic cholangiogram and clinical symptoms, a wire can be placed via the accessing needle into the biliary tree, followed by tract dilation and biliary drainage catheter placement. This is called the “one-stick” method. If the initial puncture was directed into …
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What is the difference between an external biliary drainage catheter and an internal or external biliary drainage catheter? External drains end within the bile ducts above the site of obstruction. The obstructed biliary tree is decompressed by draining the bile externally into a drainage bag. Internal/external drains cross the site of obstruction and end within …
basic steps required to perform diagnostic percutaneous transhepatic cholangiography Under fluoroscopic guidance, a 21 G or 22 G needle is passed into the liver through an inferior intercostal or subcostal space at the level of the right midaxillary line. It is important to verify that the needle does not pass through the pleural space. The needle is …
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What are some important normal biliary ductal anatomic variants? The right posterior segment duct sometimes drains into the left hepatic duct, biliary confluence, or common hepatic duct instead of joining the right anterior segment duct. The cystic duct may parallel the common hepatic duct for some distance and have a low insertion with a consequently …
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What is the most commonly encountered biliary ductal anatomy? The left hepatic duct is formed by the union of medial and lateral segment bile ducts. Right hepatic lobe bile duct anatomy is more complex and variable. The posterior-inferior and posterior-superior portions of the right hepatic lobe are drained by the right posterior ducts (also known …
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