Biliary, pancreatic, and sphincter of Oddi electrical and mechanical signals recorded during ERCP

Digestive Diseases and Sciences
T L AbellS Vera

Abstract

Measurements of biliary tract motility have focused on radiologic and pressure measurements to quantify biliary motility rather than measurements of electrical activity of the biliary tract. We previously reported the recording of biliary electrical signals during ERCP and now report on the continued development and validation of a system to measure biliary tract electrical activity as well as biliary mechanical activity. In 26 patients presenting with a variety of clinical indications, we recorded measurements of electrical activity from the common bile duct sphincter (16 patients), pancreatic duct sphincter (eight patients), and/or sphincter of Oddi (eight patients). Electrical recordings were performed with a specially modified ERCP catheter, using two circular electrodes as well as a custom catheter that measured both electrical and mechanical activity. Electrical activity of the biliary tract was successfully recorded in 25 of 26 patients (96%), including the common bile duct sphincter (16 patients, 62%), pancreatic duct sphincter (eight patients, 31%) and sphincter of Oddi (eight patients, 31%). Along with the electrical recordings, common bile duct sphincter mechanical activity was recorded in 12 patients (67%), pancreat...Continue Reading

Citations

Apr 30, 2010·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·Y-K LiuJ-H Dong
Feb 13, 2009·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·F ChenZ-H Li

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