Houston Methodist. Leading Medicine.
Houston Methodist. Leading Medicine

Esophageal Manometry

Test Information: Esophageal Manometry

What is Esophageal Manometry?

The Esophageal Manometry Test is a test done to diagnose muscular disorders of the esophagus for patients with unexplained chest pain or difficulty swallowing.


Some patients may experience throat discomfort and nosebleed.

What to do the night before the procedure

Do not eat or drink anything after midnight prior to the day of your test.

Preparing for the procedure

Do not smoke the day of your test. If you are an asthma patient bring your inhaler.Follow your physician’s instructions regarding discontinuing medications. Drugs such as nitrates, calcium channel blockers, theophylline, metoclopramide or sedatives may affect esophageal motor activity. It is preferable to stop these drugs 24 hours prior to testing.

During the procedure

The test involves inserting a very small catheter through the nose, down the back of the esophagus and into the stomach. The catheter is slowly withdrawn while the patient swallows sips of water and pressures are recorded in the esophagus. The test lasts 1 ½ hours.

After the procedure

You may drive yourself home after the procedure.