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    Esophageal manometry

    Esophageal motility studies; Esophageal function studies

    Esophageal manometry is a test to measure how wellthe esophagus is working.

    During esophageal manometry, a thin, pressure-sensitive tube is passed through your nose down the esophagus and into your stomach.

    Before the procedure, you receive numbing medicine inside the nose. This helps make the insertion of the tube less uncomfortable.

    After the tube is in the stomach, the tube is pulled slowly back into your esophagus. At this time, you are asked to swallow. The pressure of the muscle contractions is 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.

    You should not have anything to eat or drink for 8 hours before the test. If you have the test in the morning, do not eat or drink after midnight.

    Tell your health care provider about all medicines you are taking. These include vitamins, herbs, and other over-the-counter medicines.

    You may have a gagging sensation and some discomfort when the tube is passes through your nose and throat.

    The esophagus is the tube that carries food from your mouth into the stomach. When you swallow, muscles in your esophagus squeeze (contract) to push food toward the stomach. Valves, or sphincters, inside the esophagus open to let food and liquid through.

    They then close to prevent food, fluids, and stomach acid from moving backward. The sphincter at the bottom of the esophagus is called the lower esophageal sphincter, or LES.

    Esophageal manometry is done to see if the esophagus is contracting and relaxing properly. The test helps diagnose swallowing problems. During the test, the doctor can also check the LES to see if it opens and closes properly.

    The test may be ordered if you have symptoms of:

    • Heartburn or nausea after eating (gastroesophageal reflux disease, or GERD)
    • Problems swallowing (feeling like food is stuck behind the breast bone)

    Normal Results

    The LES pressure and muscle contractions are normal when you swallow.

    Abnormal results may indicate:

    • A problem with the esophagus that affects its ability to move food toward the stomach (achalasia)
    • A weak LES, which causes heartburn (GERD)
    • Abnormal contractions of the esophagus muscles that do not move food effectively to the stomach (esophageal spasm)

    Risks

    Risks of this test include:

    • Slight nosebleed
    • Sore throat
    • Hole, or perforation, in the esophagus (this rarely happens)

    References

    Richter JE, Friedenberg FK. Gastroesophageal reflux disease. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Elsevier Saunders; 2010:chap 43.

    Vaezi MF. The esophagus: anatomy, physiology, and diseases. In: Flint PW, Haughey BH, Lund VJ, et al., eds. Cummings Otolaryngology Head and Neck Surgery. 5th ed. Philadelphia, Pa: Elsevier Mosby; 2010:chap 72.

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    • Esophageal manometry

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      • Esophageal manometry

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      A Closer Look

        Tests for Esophageal manometry

        Review Date: 8/22/2013

        Reviewed By: George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.

        The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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