Lower gastrointestinal endoscopy

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Lower gastrointestinal endoscopy is the term used to describe the medical examination of a person’s lower gastrointestinal tract.

This special type of investigation is a combination of two other tests of lower gastrointestinal tract: colonoscopy and sigmoidoscopy. Lower gastrointestinal endoscopy is used to identify specific problems small intestine.

In this case, for the lower digestive endoscopy an endoscope is used. This is a thin tube, flexible, equipped with a video camera and light source on one end, to be able to see inside the gastrointestinal tract. In this special examination will be included, so colonoscopy (colon examination) and sigmoidoscopy (examination of the sigmoid colon). The investigation will be supported by a specialist trained in such tests, but also in interpreting the results.

For a total colonoscopy, a long fiber optic tube will be inserted through the anus and rectum, after that being moved through the entire colon. Each portion of the colon will be observed and examined. During sigmoidoscopy, flexible fiber optic tube, a tube will be introduced soon, which will reach from the rectum into the colon.

Lower gastrointestinal endoscopy will be used to diagnose cancer, polyps and inflammation (colitis, for example), but for other causes of abnormal bleeding or unclear medical situations, due to X-ray radiography technique is used to remove polyps (polypectomy ).


1. Overview
2. What is endoscopy?
3. Preparation
4. Performing the procedure
5. Endoscopy results

What is endoscopy?

Endoscopy is performed using an endoscope – a flexible tube made of extremely thin fibers in fiberglass, fitted at one end with a light source and a camera that provides images on a monitor.

The doctor can view through the lower gastrointestinal tract endoscopy structures and can establish a diagnosis. If necessary, treatment can be established by the introduction of instruments through the endoscope empty section.


Before making the lower gastrointestinal endoscopy, the patient will take some measures. In most cases, the person undergoing endoscopy should drink only clear liquids and do not eat for at least 24 hours before the examination. Laxatives and enemas may be needed before starting the investigation.

Performing the procedure

The patient is placed on an examination table, lying on the left. The doctor will mount an intravenous line and will insert through the substance with sedative role. The endoscope is moved through the rectum examination if desired interior walls of the lower gastrointestinal system.

Although the investigation can be seen on screen in real time, will be made and photographs too that will be stored on a computer for further analysis and diagnosis. After the examination is complete, the patient will need to be accompanied home because sedation effects may persist.

Endoscopy results

Examining physician or doctor will present the results of endoscopy to his patient after sedation effects will disappear. If biopsy or polypectomy was performed, it may take several days until results are available.

Test results might be kept as photographs or video images provided by the endoscope. Other investigations can be recommended or required.



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