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Esophagus Tests

Results continued...

 

Esophageal manometry
Normal:
Abnormal:
  • Muscle spasms are present in the esophagus.
  • Contractions along the esophagus are weak or uncoordinated.
  • The LES pressure is low.
  • The LES pressure is high and fails to relax after swallowing.

 

Many conditions can change the results of esophagus tests. Your doctor will discuss any significant abnormal results with you in relation to your symptoms and past health.

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

  • Taking certain medicines. Many medicines can affect the results of pH testing or esophageal manometry. Make sure you follow your doctor's instructions about which medicines to stop or to take before and during testing.
  • Smoking or drinking alcohol within 24 hours of the test.
  • Eating or drinking within 8 hours of the test, unless you are having prolonged pH monitoring at home. If you are having prolonged pH monitoring, try to eat normally and do your normal activities.
  • Detachment of the wireless pH capsule before the end of the recording time (usually 24 or 48 hours).
  • Movement of the catheter when you swallow.

What To Think About

  • Occasionally, samples of stomach secretions may be taken during the pH monitoring test.
  • Combining multichannel intraluminal impedance testing with pH (MII-pH) can record reflux, even if it's not acidic. pH testing by itself will only record acidic reflux events.
  • Other tests may be done to help diagnose problems with the esophagus, including upper gastrointestinal (UGI) endoscopy, barium swallow, or upper gastrointestinal studies (upper GI series).

Other Works Consulted

  • American Gastroenterological Association (2005). AGA technical review on the clinical use of esophageal manometry. Gastroenterology, 128(1): 209–224.

  • American Gastroenterological Association (2008). American Gastroenterological Association medical position statement on the management of gastroesophageal reflux disease. Gastroenterology, 135(4): 1383–1391.

  • Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.

  • Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.

  • Hirano I, et al. (2007). ACG practice guidelines: Esophageal reflux testing. American Journal of Gastroenterology, 102(3): 668–685.

  • Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.

WebMD Medical Reference from Healthwise

Last Updated: April 16, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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