Upper endoscopy allows for direct visualization of the lining of the upper gastrointestinal tract. This allows for detection of ulcers, inflammation, or other abnormalities.
Chronic gastroesophageal reflux, or heartburn, may lead to changes in the lining of the esophagus, which has precancerous potential. In patients with longstanding heartburn, the ability to see the esophageal lining and to perform diagnostic biopsies is important in formulating a treatment plan.
Biopsies, or small tissue samples, can be taken to help diagnose problems and guide treatment. These samples are then sent to a pathologist for examination.