Biliary tract interventions.

Biliary tract interventions remain a tremendous technical challenge to the interventionalist and require appropriate clinical postprocedural management. The increased use of endoscopy for biliary tract evaluation and intervention has served to largely replace percutaneous techniques, resulting in a decreased number of patients requiring primary percutaneous transhepatic biliary interventions. However, those patients who do present for percutaneous biliary procedures often represent a more technically difficult subset. Thorough familiarity with normal and variant biliary tract anatomy, and experience with a variety of techniques, will allow for successful biliary tract interventions in complex situations. This article reviews the current role of percutaneous transhepatic interventions in the emergency evaluation and management of biliary tract disease.