Esophageal manometry is a test to measure the pressure inside the lower part of the esophagus.
Alternative NamesEsophageal motility studies; Esophageal function studies
How the test is performedWhen you swallow, muscles in your esophagus contract to help push food toward your stomach. Valves, or sphincters, inside the esophagus open to let food and liquid through, and then close to prevent food, fluids, and gastric acid from moving backward. The sphincter at the bottom of the esophagus is called the lower esophageal sphincter or LES.
During esophageal manometry, a thin, pressure-sensitive tube is passed through your mouth or nose and into your stomach. Once in place, the tube is pulled slowly back into your esophagus.
When the tube is in your esophagus, you will be asked to swallow. The pressure of the muscle contractions will be measured along several sections of the tube.
While the tube is in place, other studies of your esophagus may be done. The tube is removed after the tests are completed. The test takes about 1 hour.
How to prepare for the testYou should not have anything to eat or drink for 8 hours before the test.
How the test will feelYou may have a gagging sensation and some discomfort when the tube is put into place.
Why the test is performedThe purpose of esophageal manometry is to see if the esophagus is contracting and relaxing properly. The test helps diagnose any swallowing problems. Your health care provider may request that this test be performed if you have symptoms of gastroesophageal reflux disease (GERD).
Normal ValuesThe LES pressure and muscle contractions are normal when you swallow.
What abnormal results meanAbnormal results may indicate the following:
The tube in the esophagus may cause increased salivation, which raises your risk for aspiration. This can lead to lung injury or aspiration pneumonia.
In general, people with swallowing difficulty are at higher risk for aspiration.
ReferencesWilson, J F. In the clinic. Gastroesophageal reflux disease.Ann Intern Med. 2008;149(3): ITC2-1-15; quiz ITC2-1691010
test in which a thin tube is passed into the esophagus to measure the degree of pressure exerted by the muscles of the esophageal wall.
There are no special aftercare instructions for patients who have had ambulatory esophageal pH monitoring, barium esophagography, or esophageal manometry.
The cost of an Esophageal Manometry test can vary depending on the healthcare provider and location. On average, the cost can range from $500 to $2000 without insurance coverage. It's recommended to check with your healthcare provider or insurance company for specific pricing details.
Esophageal manometry. In this test, a thin tube is passed into the esophagus to measure the pressure exerted by the esophageal sphincter. X ray of the esophagus. Barium may be swallowed to act as a contrast agent
the patient swallows a thin tube carrying a device that senses changes in pressures in the esophagus. Readings are taken at rest and during the process of swallowing.
A series of x rays taken while swallowing a contrast agent usually demonstrates the diverticulum clearly. An esophagoscopy may also be needed to gather more detail. Manometry, measuring pressures inside the esophagus.
Manometry is used to study the way the muscles of the esophagus contract, and is most useful for investigating dysphagia.
The manometry is with the in the manometer main determination breath. For a manometry system to be classified as high resolution as opposed to conventional, the pressure sensore need to be space at most 1 cm apart
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manometry (Chapter 18: CPT Medicine)