An upper endoscopy is performed to help evaluate and treat problems of the upper GI tract (esophagus, stomach, duodenum).
After monitored anesthesia care (MAC) or IV (intravenous) sedation is administered, a thin, flexible tube, or endoscope, is inserted through the mouth and into the esophagus, stomach and first part of the small intestine (called the duodenum). The endoscope is equipped with a camera and has a channel to allow insertion of air to visualize these structures. The endoscope also has ports to allow the physician to perform different procedures, such as biopsies, dilation procedures, and polypectomies (removal of polyps).
If upper endoscopy is performed before 12:00 p.m., then patients should not eat or drink anything after midnight the night prior. If the upper endoscopy is performed after 12:00 p.m., then patients should not eat or drink anything for 8 hours prior to the exam.