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Impedance/pH Monitoring at Drexel Gastroenterology

Man feeling abdominal discomfort.

Our specialists use impedance/pH monitoring to follow acid and non-acid reflux episodes in the esophagus over a 24-hour period. The evaluation of pH determines if the patient's symptoms are related to acid reflux, non-acid reflux, or not related to reflux at all. Gastroesophageal reflux disease (GERD) is when the stomach's contents leak backwards from the stomach into the esophagus (the tube that connects the mouth to the stomach). GERD can irritate the esophagus, causing heartburn and other symptoms.

What to Expect During Impedance/pH Monitoring

During impedance/pH monitoring a catheter or small, flexible tube is inserted through the nostril and into the esophagus. Data from the catheter is transmitted during a 24-hour period to a recording device worn on a belt around the patient's waist. The catheter and recorder are removed the next day. The information from the recording device is used by our doctors to make a diagnosis and guide treatment for acid reflux or GERD.

The information on these pages is provided for general information only and should not be used for diagnosis or treatment, or as a substitute for consultation with a physician or health care professional. If you have specific questions or concerns about your health, you should consult your health care professional.

The images being used are for illustrative purposes only; any person depicted is a model.

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