Explore a comprehensive lecture on the impedance of the esophagus delivered by Dr. Jeffrey L. Conklin, director of the GI Motility Program and medical director of the UCLA Robert G. Kardashian Center for Esophageal Health. Delve into the principles of impedance measurement in the esophagus, learn how impedance is utilized to measure bolus movement, and discover its application in assessing esophageal biomechanics and motor function. Gain insights into topics such as impedance pH catheters, luminal impedance measurement, impedance manometry, and the functional luminal imaging probe (FLIP). Understand the significance of EGJ-Distensibility Index and various FLIP esophageal motor patterns, including normal topography and achalasia types. This 59-minute presentation offers a thorough exploration of esophageal impedance, providing valuable knowledge for medical professionals and researchers in the field of gastroenterology.
Impedance of the Esophagus - Jeffrey L. Conklin, MD - UCLA
University of California, Los Angeles via YouTube
Overview
Syllabus
Intro
Impedance defined
Impedance pH catheter
Measuring luminal impedance
What determines impedance measurement?
How impedance measures bolus movement
Impedance pH reflux event
Impedance distinguishes types of belch
Impedance manometry
Esophageal Impedance/Pressure Topography - Normal
Gastric bypass and heartburn/regurgitation
What is an infinitely compliant balloon? Why is it needed?
Ohm's Law Electrical impedance is the opposition that a circuit presents to a current when a voltage is applied.
Functional luminal imaging probe (FLIP)
EGJ-Distensibility Index
FLIP can be used to evaluate esophageal function
FLIP Esophageal Motor Patterns
Normal FLIP Topography
Achalasia Type
FLIP Classification Scheme
Taught by
UCLA Health
