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Upper Endoscopy

Click here to view the American Society for Gastrointestinal Endoscopy (ASGE) Video: “What to Expect From Your Upper Endoscopy

What Is An Upper Endoscopy Test?

Upper endoscopy is a procedure which enables the direct visualization of the lining of the upper part of your gastrointestinal tract, which includes the esophagus, stomach, and duodenum (first portion of the small intestine). During this procedure, a thin, flexible tube called an endoscope, which has its own lens and light source, is passed through the mouth and advanced to the beginning of the small intestine.


Why Is Upper Endoscopy Done?

Upper endoscopy assists the doctor in evaluating symptoms of persistent upper abdominal pain, nausea, vomiting or difficulty swallowing. It’s an excellent test for finding the cause of bleeding from the upper gastrointestinal tract. It is more accurate than X-ray films for detecting inflammation, ulcers, and tumors of the esophagus, stomach, and duodenum.

A biopsy (small tissue samples) is often obtained during an upper endoscopy. A biopsy can distinguish between benign and malignant (cancerous) tissues, can detect the presence of Helicobacter pylori (a bacterium associated with most ulcers) and can detect Barrett’s esophagus (a potential precursor to esophageal cancer).  Upper endoscopy is also used to treat conditions of the upper gastrointestinal tract such as bleeding and to dilate strictures (narrowed areas).


How Should I Prepare For The Procedure?

An empty stomach is essential for an accurate and safe examination, so you should have nothing to eat or drink, including water, for approximately eight hours before the examination. For more details, please refer to our procedure instructions on our website or view this helpful video.

  1. Do not eat or drink for at least 8 hours prior to your scheduled appointment.
  2. Arrange to have an escort pick you up approximately 1 hour after your scheduled appointment to drive or assist you home.
  3. You will not be allowed to drive for 12 hours after the procedure.


What Can I Expect During An Upper Endoscopy Procedure?

Our anesthesiologist will administer a short-acting intravenous sedative and will be present to monitor your vital signs during the procedure. You will not experience any sensation of gagging or choking. A mouthpiece will be placed between your teeth to keep your mouth open and to prevent your teeth from biting our scope. You will lie on your left side, and the endoscope will be passed through your mouth and into the esophagus, stomach, and duodenum. The endoscope doesn’t interfere with your breathing. The examination typically lasts 10 minutes.


What Happens After Upper Endoscopy?

You will be monitored until most of the effects of the medication have worn off. Your throat might be a little sore, and you might feel bloated because of air introduced into your stomach during the test. You will be given a liquid to drink before you leave our office. Once you leave the office, you will be able to eat unless you are instructed otherwise. Your test results will be discussed with you before you leave. The biopsy results will take approximately 5 business days and you will be notified by phone by one of our nurses. You will not be allowed to drive for 12 hours. You will need to arrange for someone to accompany you home because the sedatives might affect your judgment and reflexes for the rest of the day.


What Are The Possible Complications Of Upper Endoscopy?

Although complications are rare, bleeding can occur at a biopsy site or where a polyp was removed. If this occurs, it’s usually minimal and rarely requires follow-up. Other potential risks include a reaction to the sedative used and perforation (a tear in the gastrointestinal tract lining). It’s important to recognize early signs of possible complications. If you have a fever after the test, trouble swallowing or increasing throat, chest or abdominal pain, call us immediately.


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Meet Jennifer Bonheur, MD

Dr. Jennifer Bonheur is a board-certified gastroenterologist who loves her work and values her relationships with her patients. As a female gastroenterologist, she strives to connect and treat the patient and not simply the illness. Dr. Bonheur offers specialized care in gastroenterology and therapeutic endoscopy. Together with her staff, she is committed to providing the highest quality medical care in a comfortable, professional and personalized environment. Learn More »