Ambulatory Esophageal

Ambulatory Esophageal

An ambulatory esophageal 24 hour pH study is an outpatient test that measures the amount of acid or non-acid reflux of stomach contents into the esophagus.  The sensors placed in the esophagus measure acid concentration which corresponds to acidic reflux and impedance which corresponds to non-acid reflux. You will wear a data recorder during the test and record symptomatic episodes.

 

Symptoms will be analyzed for any correlation to episodes of reflux. By analyzing episodes of reflux with associated symptoms this tests helps your doctor determine if your symptoms are due to gastroesophageal reflux disease. This is an important part of the pre-operative evaluation for gastroesophageal reflux surgery. You should have nothing to eat or drink for four hours before your procedure.  A thin flexible tube will be inserted into the nostril and into the esophagus. 

 

You will be able to drive yourself home after placement of the esophageal impedance-pH probe.  Esophageal pH and impedance data will be collected and stored on the data recorder. The following day you will return to the practice and the esophageal probe will be carefully removed.  The information will be analyzed and reviewed by the doctor.