Obesity Is Associated With Increased 48-h Esophageal Acid Exposure in Patients With Symptomatic Gastroesophageal Reflux

Abstract

This is the first study to report a positive relationship between BMI and esophageal acid exposure time using prolonged, continuous wireless esophageal pH-metry. Abnormal AET was more frequent in OB patients. Variability in AET increased from day 1 to day 2 in the OB group, supporting the use of more prolonged pH studies in subsets of patients.