Curbside Consultation in GERD: 49 Clinical Questions

Philip O. Katz, MD

Question 6: What Are The Indications For 24-Hour Ambulatory Ph Monitoring? Which Of My Patients Should Have This Study “On Medications” Versus “Off Medications”? (continued)

Ambulatory pH monitoring or ambulatory reflux monitoring is the only means of documenting the presence of abnormal esophageal acid exposure and abnormal reflux frequency and to correlate the association of symptoms and reflux episodes. The most common indication for pH/reflux monitoring is evaluation of patients with symptoms suspected due to GERD who have not responded to proton pump inhibitors (PPIs). This is the only way to document the presence or absence of continued reflux, the association of reflux with symptoms, and to document adequacy of PPI therapy in acid control. As almost every…