Endoscopy is a nonsurgical procedure used to examine a person's digestive tract. Using an endoscope, a flexible tube with a light and camera attached to it, we can view pictures of your digestive tract on a color TV monitor.
During an upper endoscopy, an endoscope is easily passed through the mouth and throat and into the food pipe allowing to view food pipe, stomach, and upper part of the small intestine.
Similarly, endoscopes can be passed into the large intestine (colon) through the rectum to examine this area of the intestine. This procedure is called sigmoidoscopy or colonoscopy depending how far u go.
In addition, we may use an endoscope to take a biopsy (removal of tissue) to look for the presence of disease.
Gut Preparation. Examining the upper digestive tract (upper endoscopy or ERCP) requires nothing more than fasting for 6-8 hours prior to the procedure. To examine the colon, it must be cleared of stool. Therefore, a laxative or group of laxatives is given on the day before the procedure.
Sedation. For most examinations with an endoscope, a sedative is provided. This increases the comfort of the individual undergoing the examination. The sedative, which is administered via an injection into the vein, produces relaxation and light sleep.
Overall, endoscopy is very safe