What is Gastroscope?
A gastroscope is an endoscope that serves the continuous visualization of the mucosa of the esophagus, stomach, and duodenum (gastroscopy). For this purpose, an optical unit, usually a camera chip, is inserted and advanced into the mouth via a flexible hose firmly attached to the optic.
u00a0This tube is used to transmit power between the examiner and the optical chip. It also houses an optical fiber cable for illumination, image transmission cable, cables, a channel for the rinsing of the optics and a working circuit for auxiliary equipment such as pliers, syringe needle, clips, and slings.
This allows interventions such as the removal of tissue growth (Tumor), hemostasis and removal of tissue samples. It is also possible to aspirate liquids from the stomach via the working channel or to introduce larger quantities of rinsing liquid.
The hose is flexible and has only low restoring forces. Only at the tip of the device, an approximately ten centimeters long section of the examiner can be angled by up to 180 u00b0.
Recent developments allow imaging with the light of defined wavelengths. There are also zoom endoscopes, which would enable a freely adjustable magnification, even the endoscopic microscopy is being tested in some centers.u00a0
When It Is Performed
Gastroscopy is usually performed to assess the cause of abdominal discomfort: pain, nausea, difficulty swallowing, heartburn, burning, etc. It is also the most effective method to determine the cause of illnesses that have their origin in the upper digestive tract.
Through this technique, tumors can be detected at an early stage. By extracting small samples of the mucosa, which are subsequently studied under a microscope, the distinction between benign and malignant lesions can be made.u00a0
How is the preparation of the test?
The stomach must be empty. Avoid the intake of solid and liquid foods from the previous night.
In case you should take any medication, you will do it as soon as possible and helping yourself with small sips of water. It is important not to take antacids and not smoke before the test.
The patient to be tested must inform the medical staff that they are going to do it if they are taking anticoagulants (aspirin or other drugs), if they have a severe cardiac or respiratory problem or an infectious disease of the type hepatitis, etc.
What happens after the scan?
After the scan, patient should wait a few minutes before trying to eat or drink the liquid. Once the effect has passed, patient can follow patientu2019s usual diet.
The result of the gastroscopy is known once it is finished. If biopsies and/or cytology have been taken, patient should wait several days to have the definitive diagnosis.
The complications that may arise appear in less than 1 in 1,000 and may consist of: distention of the abdomen, pain, hypotension, phlebitis, allergic reactions, infection, bronchial aspiration, hemorrhage, perforation, and cardiorespiratory arrest.