ABSTRACT
Definition. Esophageal impedance is a measure of the resistance to electrical con-
ductivity of the esophagus and its contents, and is used to measure bolus
transport. Impedance is inversely proportional to electrical conductivity.
Definition. Esophageal impedance is a measure of the resistance to electrical con-
ductivity of the esophagus and its contents, and is used to measure bolus
transport. Impedance is inversely proportional to electrical conductivity.