Esophagogastroduodenoscopy, or EGD, is a diagnostic test that allows doctors to examine and treat problems in the esophagus. The procedure involves passing a black tube, which has a camera at one end, through the mouth to view the esophagus, stomach and duodenum, the first portion of the small intestine.
The physician may obtain a tissue sample for biopsy during the procedure and conduct other therapeutic procedures, such as laser therapy and endoscopic surgery. An EGD test is conducted to manage several health problems, including ulcers, tumors, dysphagia, hiatal hernia, chest pain, and strictures. Complications that may arise during the procedure include infection, perforation and bleeding.