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  • Biliary catheters used for measuring pressure in the biliary and/or pancreatic ducts, especially in the smooth muscle fibers investing the associated bile and pancreatic passages as they traverse the wall of the duodenum (sphincter of Oddi). These devices usually consist of a triple-lumen 5 Fr catheter including two or three leads, either with micropressure transducers located at their distal tip or with open-end, fluid-filled pressure catheters attached to an external strain-gauge transducer. Most of them include openings for aspiration purposes. Manometric biliary catheters are frequently used for evaluation of postcholecystectomy pain and for assessing sphincter of Oddi dysfunction.
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