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EGD - esophagogastroduodenoscopy

Esophagogastroduodenoscopy; Upper endoscopy; Gastroscopy

Esophagogastroduodenoscopy (EGD) is a test to examine the lining of the esophagus, stomach, and first part of the small intestine.

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Gastric endoscopy

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How the Test is Performed

EGD is done in a hospital or medical center. The procedure uses an endoscope. This is a flexible tube with a light and camera at the end.

The procedure is done as follows:

After the test is finished, you will not be able to have food and liquid until your gag reflex returns (so you do not choke).

The test lasts about 5 to 20 minutes.

Follow any instructions you're given for recovering at home.

How to Prepare for the Test

You will not be able to eat anything for 6 to 12 hours before the test. Follow instructions about stopping aspirin and other blood-thinning medicines before the test.

How the Test will Feel

The anesthetic spray makes it hard to swallow. This wears off shortly after the procedure. The scope may make you gag.

You may feel gas and the movement of the scope in your abdomen. You will not be able to feel the biopsy. Because of sedation, you may not feel any discomfort and have no memory of the test.

You may feel bloated from the air that was put into your body. This feeling soon wears off.

Why the Test is Performed

EGD may be done if you have symptoms that are new, cannot be explained, or are not responding to treatment, such as:

Your doctor may also order this test if you:

The test may also be used to take a piece of tissue for biopsy.

Normal Results

The esophagus, stomach, and duodenum should be smooth and of normal color. There should be no bleeding, growths, ulcers, or inflammation.

What Abnormal Results Mean

An abnormal EGD may be the result of:

Risks

There is a small chance of a hole (perforation) in the stomach, duodenum, or esophagus from the scope moving through these areas. There is also a small risk of bleeding at the biopsy site.

You could have a reaction to the medicine used during the procedure, which could cause:

Related Information

Acute
Chronic
Diverticulitis
Mallory-Weiss tear
Lower esophageal ring
Esophagitis
Anti-reflux surgery - children
Gastroesophageal reflux - discharge

References

Chernecky CC, Berger BJ. Esophagogastroduodenoscopy (EGD) - diagnostic. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6th ed. St Louis, MO: Elsevier; 2013:486-487.

Vargo JJ. Preparation for and complications of GI endoscopy. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology/Diagnosis/Management. 10th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 41.

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Review Date: 8/1/2017  

Reviewed By: Subodh K. Lal, MD, Gastroenterologist with Gastrointestinal Specialists of Georgia, Austell, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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