Esophagogastroduodenoscopy (EGD) is a test to examine the lining of the esophagus (the tube that connects your throat to your stomach), stomach, and first part of the small intestine. It is done with a small camera (flexible endoscope) which is inserted down the throat.
You will be given a sedative and a painkiller (analgesic). You should feel no pain and not remember the procedure. A local anesthetic may be sprayed into your mouth to prevent you from coughing or gagging when the endoscope is inserted. A mouth guard will be inserted to protect your teeth and the endoscope. Dentures must be removed.
In most cases, a needle (IV) will be inserted into a vein in your arm to give you medications during the procedure.
You will be instructed to lie on your left side.
After the sedatives have taken effect:
- The endoscope is inserted through the esophagus (food pipe) to the stomach and duodenum. Air is put into the endoscope to make it easier for the doctor to see.
- The lining of the esophagus, stomach, and upper duodenum is examined. Biopsies can be taken through the endoscope. Biopsies are tissue samples that are looked at under the microscope.
- Different treatments may be done, such as stretching or widening a narrowed area of the esophagus.
After the test is finished, you will not be able to have foods and liquids until your gag reflex returns (so you don't choke).