An upper endoscopy is a procedure used to visually examine your upper digestive system with a tiny camera on the end of a long, flexible tube. A specialist in diseases of the digestive system (gastroenterologist) uses an endoscopy to diagnose and, sometimes, treat conditions that affect the esophagus, stomach and beginning of the small intestine (duodenum).
The medical term for an upper endoscopy is esophagogastroduodenoscopy. You may have an upper endoscopy done in your doctor’s office, an outpatient surgery center or a hospital.
An upper endoscopy is used to diagnose and, sometimes, treat conditions that affect the upper part of your digestive system, including the esophagus, stomach and beginning of the small intestine (duodenum).
Your doctor may recommend an endoscopy procedure to:
An endoscopy is sometimes combined with other procedures, such as an ultrasound. An ultrasound probe may be attached to the endoscope to create specialized images of the wall of your esophagus or stomach. An endoscopic ultrasound may also help your doctor create images of hard-to-reach organs, such as your pancreas. Newer endoscopes use high-definition video to provide clearer images.
Many endoscopes allow your doctor to use technology called narrow band imaging, which uses special light to help better detect precancerous conditions, such as Barrett’s esophagus.
An endoscopy is a very safe procedure. Rare complications include:
You can reduce your risk of complications by carefully following your doctor’s instructions for preparing for an endoscopy, such as fasting and stopping certain medications.
Signs and symptoms to watch for after your endoscopy include:
Call your doctor immediately or go to an emergency room if you experience any of these signs or symptoms.
Your doctor will give you specific instructions to prepare for your endoscopy. In some cases your doctor may ask that you: