Colonoscopy
What is it?
An endoscope similar to the one used for a gastroscopy is used for a colonoscopy and is performed under similar deep sedation which is administered by a highly qualified anaesthetist. Due to the length of the large bowel (and depending on findings), procedures can range from 15 to 45 minutes. Common indications for colonoscopy include investigation of iron deficiency, bleeding, abdominal pain, change in bowel habits, bowel cancer screening and colonic polyp surveillance. If abnormalities are identified, small biopsy samples can be taken for testing. Colonic polyps are commonly found and are an important finding, as some polyps have the potential to become cancerous over time. Most polyps are removed at the time of the colonoscopy as this removes the cancer risk.
Locations in Perth
You will have the option of having your procedure either at St John of God Hospital in Subiaco or Mount Lawley.
Preparation for the colonoscopy
You will be required to undergo a period of dietary restriction and fasting in the days preceding the colonoscopy. You will be given instructions on specific laxatives and solutions to clean the bowel in order to allow for good views of the bowel lining. It is very important to adhere to the instructions as suboptimal bowel preparation may require you to have a repeat procedure if the views are inadequate. I will also advise regarding required changes to the medications that you are currently taking.
After the procedure
The sedative medications used are short acting and you should be awake soon after the completion of the procedure. You can expect to feel sleepy for the hour after and your judgement can be affected for the following 12-24 hours. As such you should not drive or operate heavy machinery. It is advisable for patients to arrange to be picked up from the hospital. I will discuss the colonoscopy findings with you when you are awake and provide you with a management plan. You should not expect to experience pain, but some patients do experience minor bloating from the gas used to distend the bowel during the procedure. All procedure reports and correspondence will be forwarded promptly to the referring doctor.