Dr. Montagnese, an expert in Gastroscopy in Rome, explains what the two treatments of digestive endoscopy are and how they are performed: gastroscopy and endoscopy
What is gastroscopy?
Gastroscopy, also known as esophagogastroduodenoscopy (EGDS), is a diagnostic procedure that allows the specialist to examine the upper part of the digestive system in order to identify any abnormalities present in the stomach, esophagus and duodenum. The specialist can take tissue samples using the gastroscope, a flexible instrument of about 0.8 cm in diameter equipped with a camera. The gastroscope is introduced simply and painlessly into the esophagus through the mouth, to then reach the area to be analyzed. In some cases, deep sedation can be performed to make the exam more acceptable.
How is gastroscopy performed?
The patient will have to stop taking anti-acid drugs at least 48 hours before the examination and will have to keep fasting for at least 8 hours. During the esamegastgastroscopy the patient must lie on the left side and, before proceeding with the insertion of the gastroscope, a mouthpiece will be placed in the mouth in order to protect the teeth. After inserting the probe and after reaching the duodenum, air will be insufflated in order to spread the walls and thus allow a good vision of the mucosa. Following the examination, the patient will be able to return home without needing hospitalization.
Gastroscopy is a safe and repeatable examination lasting only a few minutes. In fact, the rate of complications given by a diagnostic gastroscopy is less than 4 per thousand.
What is a colonoscopy?
Colonoscopy is a test indicated to assess any lesions in the intestine. The endoscopist doctor can evaluate the patient's colon and, if necessary, take tissue samples to be able to analyze them in the laboratory. This examination, lasting about 10-15 minutes, is performed with the aid of a colonoscope, a flexible instrument with a diameter of about 1 cm and equipped with a camera.
How is a colonoscopy performed?
Before undergoing this procedure, the patient must scrupulously follow the instructions of the specialist on bowel preparation and on the diet to be followed: a perfect cleaning of the intestine is necessary in order to perform the procedure in an optimal manner. The patient is made to lie on the left side and the colonoscope is introduced through the anus until it reaches the last ileal loops. As in gastroscopy, air is drawn in to stretch the walls and obtain optimal vision. Colonoscopy can be painful, which is why it is possible to perform a deep sedation to make the examination more acceptable to the patient.