COLONOSCOPY
What is Colonoscopy?
It is a safe, effective means of visualising the entire lining of the colon and rectum, using a long flexible, tubular instrument. It is used to diagnose colon and rectum problems and to perform biopsies and remove colon polyps. Most colonoscopies are done on an outpatient basis with minimal inconvenience and discomfort.
Who should have a Colonoscopy?
Your doctor may recommend a colonoscopic examination if you have change in bowel habit or bleeding, indicating a possible problem in the colon or rectum.
A colonoscopy is also necessary to:
q Check out unexplained abdominal symptoms
q Look for inflammatory bowel disease (colitis)
q Verify findings of polyps or tumours located with a barium enema exam
q Examine patients who test positive for blood in the stool
q Monitor patients with a past history of colon polyps or cancer
How is Colonoscopy performed?
The bowel must first be thoroughly cleared of all residue before a colonoscopy. This is done one to two days before the exam as prescribed. The details will be sent to you in the post.
The colonoscope is inserted and when possible will be advanced to the portion of the colon where the small intestine enters. During a complete examination of the bowel, your doctor will remove polyps or take biopsies as necessary.
The entire procedure usually takes less than an hour. There is little pain; however, mild sedation is given when necessary to relieve anxiety and discomfort. Following the colonoscopy or even during the procedure, there could be discomfort (wind pain), which quickly improves with the expelling of gas. Most patients can resume their regular diet later that day.
What are the benefits of Colonoscopy?
With colonoscopy, it is now possible to detect and remove most polyps without abdominal surgery. Colonoscopy is more accurate than an X-ray exam of the colon to detect polyps or early cancer. Frequently, polyps can be removed at the same time, a major step towards the prevention of colon cancer.