The upper endoscopy is a test used to diagnose GERD and determine its severity and progress. The upper endoscopy is more accurate than a barium swallow radiograph, but more invasive and expensive. The test itself uses a camera that allows the physician to view the surface of the esophagus and detect abnormalities.
What is GERD Gastroesophageal reflux, also referred to as GERD or acid reflux, is when the contents of the stomach are returned to the esophagus. The lower esophageal sphincter (LES) is the muscle between the esophagus and the stomach. The LES will normally open to allow food into the stomach and close to prevent it from returning…