Colonoscopies play a crucial role in the diagnosis and screening of colorectal cancer and other gastrointestinal conditions such as inflammatory bowel disease. During a colonoscopy, the lining of the bowel can be visualized to identify any abnormalities, such as polyps, tumours or ulcers, and biopsies can be taken at the same time.
Screening for colorectal cancer:
Colorectal cancer is the third most common cancer in men and women. Screening tests are used to diagnose and treat colorectal cancer at an early, more treatable stage or even prevent it altogether.
In 2019, the American College of Physicians recommended that average-risk adults aged 50 to 75 years should be screened for colorectal cancer by one of the following strategies:
However, the age and how often you require a colonoscopy is dependent on your risk factors. If you have no previous personal or family history of bowel conditions and are over the age of 50, I advise you to see your gastroenterologist or family physician to discuss whether a colonoscopy is the right screening tool for you. If you have a higher risk of colorectal cancer, the age of screening would start earlier or maybe more often which you family physician or gastroenterologist can discuss with you.
Signs and Symptoms:
There are various signs and symptoms of colorectal cancer, and it is important to be aware of them:
How is the colonoscopy done?
The idea of a colonoscopy often evokes some anxiety or discomfort for some but the advancements in medical technology and sedation techniques have greatly improved and the overall patient experience.
Preparation:
Before the procedure you will be given detailed instruction on how to prepare your colon. The colon needs to be fully cleared out so that the gastroenterologist can visualize the lining. The preparation typically involves a clear liquid diet for 24-48 hours before and laxatives. It is very important to follow these instructions, or the colonoscopy may need to be repeated.
During the procedure:
The colonoscopy is performed under sedation to ensure your comfort. Your gastroenterologist and anesthesiologist will discuss the type with you before your colonoscopy. You will be positioned on your left side on the examination table with your knees drawn up towards your chest for better access for the colonoscope.
The colonoscope is a flexible, long tube with a light and camera at its tip. It is gently inserted through the anus and advanced through the entire length of the colon. The camera sends real time images to a monitor, allowing the gastroenterologist to examine the colon lining. Biopsies will be taken at the time of the colonoscopy if any abnormalities are seen.
After the procedure:
Once the colon has been examined, which normally takes around 30-60 minutes, you will be taken to a recovery area where the sedation wears off. You must have someone drive you home after.
A colonoscopy is a vital medical procedure that plays a pivotal role in colorectal cancer prevention, early detection, and the management of various gastrointestinal conditions. Its effectiveness in identifying and removing precancerous polyps highlights its significance as a key component of routine healthcare screenings. While the idea of a colonoscopy may seem intimidating, the potential benefits for long-term health and well-being make it a valuable and necessary tool in the realm of preventive medicine. Regular screenings, including colonoscopies, can contribute to a healthier future by proactively addressing gastrointestinal issues and reducing the impact of colorectal cancer on individuals and communities.
If you have any questions about your risk of colorectal cancer or you are concerned about any signs or symptoms, book in with Dr Ruhil Badiani, family physician, or Dr Giovanni Leonetti, gastroenterologist at Cornerstone Clinic.
To learn more about Colonoscopy and Colorectal Cancer, please visit our dedicated page here: [Colonoscopy and Colorectal Cancer Dubai]
28 December 2023
