An upper endoscopy involves an examination of the esophagus, stomach, and duodenum. This procedure is performed to evaluate the cause of swallowing difficulties, nausea, vomiting, bleeding, abdominal pain, indigestion, or chest pain.
During EGD (Esophagogastroduodenoscopy), a thin and flexible tube known as an endoscope will be swallowed through your mouth. A numbing agent is then applied to your throat to prevent discomfort and gagging. The endoscope is guided through the esophagus, stomach, and duodenum. Images are transmitted of these organs and examined by the doctor.
Air will be blown into the stomach to expand the tissue. This allows the physician to examine abnormalities such as inflammation or bleeding. Additional instruments on the endoscope will be used to remove samples of tissue that are affected by abnormalities.
An upper endoscopy can cause complications such as bleeding and perforations in the stomach. These are rare and can be treated during the procedure. Most post-treatment symptoms will include a minor sore throat.
After the 30 minute procedure, you may be required to remain at the facility for at least an hour so the sedation will wear off.