Upper endoscopy, also known as an esophagogastroduodenoscopy (EGD), is a medical procedure that involves the insertion of a flexible tube with a camera and light at the end, called an endoscope, into the mouth and down the throat to examine the upper gastrointestinal tract.
The upper gastrointestinal tract includes the esophagus, stomach, and the beginning of the small intestine (duodenum). During the procedure, the doctor can visualize the lining of these organs, and take biopsies or remove any abnormal growths or foreign objects that may be found.
The procedure is usually done while the patient is under sedation to minimize discomfort. It is commonly used to diagnose conditions such as gastroesophageal reflux disease (GERD), ulcers, Barrett's esophagus, gastritis, and celiac disease. It can also be used to evaluate symptoms such as abdominal pain, nausea, vomiting, difficulty swallowing, and unexplained weight loss.
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