Impedance planimetry using Endoscopic Functional Lumen Imaging Probe (EndoFLIP) device is a
promising diagnostic tool to assess esophageal, esophago-gastric junction and pylorus
function. It allows the measurement of esophageal and pylorus distensibility as well as
contractile activity in response to distension. Examination is useful performed under
sedation. General anesthesia might affect distensibility values. The aim of this study is to
normal values for esophageal, esophago-gastric junction and pylorus distensibility in
controls during an upper gastro-intestinal endoscopy performed under general anesthesia.