Interventional Radiology for Medical Students by Hong Kuan Kok Elizabeth Ryan Hamed Asadi & Michael Lee

Author:Hong Kuan Kok, Elizabeth Ryan, Hamed Asadi & Michael Lee
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

A special catheter and hydrophilic guidewire may now be used to cross the obstructing lesion and down into the duodenum.

Catheter drainage: a percutaneous drainage catheter may be sited and connected to an external drainage bag. Options includea pigtailed drain left in the dilated ducts proximal to the obstruction called external drainage

an internal-external drain which passes through the obstruction into the duodenum. This has side-holes above and below the level of obstruction which facilitates drainage to the duodenum, but also allows bile to drain externally if internal drainage fails. This has a much more stable position and is less likely to inadvertently retract or displace.

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