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Colonoscopy

Take on a proactive approach in colon cancer detection and prevention with timely colonoscopies.

What is Colonoscopy?

Colonoscopy is a diagnostic procedure that is performed to examine the entire colon and rectum under direct visualization. This will highlight any abnormal growths that may be present in the large intestines. Dr Koh carries out colonoscopies by inserting a thin, flexible tube with a small light and camera at the end through the anus and rectum until it reaches the beginning of the colon.

During this examination, any polyp that is found will be removed to prevent colorectal cancer from potentially developing and a biopsy of the tissues can be carried out for further testing.

This is why colonoscopies are known to be highly effective and recommended for diagnosing colorectal cancer at an early stage, which leads to a better outcome for patients.

As colonoscopy is usually done under sedation, it is painless with only minor discomfort such as bloating after the procedure.

Colonoscopy

Colorectal Practice is dedicated to the prevention, early detection and effective treatment of colorectal cancer.

To schedule a consultation with Singaporean colorectal surgeon Dr Dennis Koh,
please call 6262 1226 today.

Who Should Undergo Colonoscopy?

As the following groups of people are at higher risk, we recommend that they undergo regular screenings every 3-5 years upon the age of 50, or even earlier and more frequently if they have a family member who had colorectal cancer at an earlier age.

Individuals
aged 50 and
above

Although colorectal cancer may manifest at any age, chances of developing colorectal cancer notably increases after the age of 50.

Individuals with a family history of colorectal cancer

Patients with family members who have had colorectal cancer are at greater risk, particularly among first-degree relatives.

Individuals with
lifestyle and diet
risk factors

  • Obesity
  • Excessive cigarette and alcohol use
  • High consumption of processed and red meats

What are the Risks Involved in Undergoing Colonoscopy?

The risks involved in Colonoscopy are very low, particularly in experienced hands. There are two main risks: bleeding and perforation.

If bleeding occurs, it will typically occur 7-10 days after the procedure. The incidence rate is very low, occurring at about 1-6 in 1000 cases. It is self-limiting and can be treated conservatively.

Perforation during Colonoscopy is also very rare, occurring in less than 1 in 1000 cases.

Are there Alternatives to Undergoing Colonoscopy?

While colonoscopy remains the most ideal, accurate and convenient option for detecting colon cancer, the following diagnostic methods can also be used:

Barium Enema

Using a barium enema involves inserting a tube into the anus and pouring a white barium solution in, coating the lining of the colon. This allows the colonic lining to become more clearly visible on an x-ray, highlighting any abnormalities that may be present.

This procedure is seldom used now, in favour of CT Colonography.

CT Colonography

A CT Colonography, or virtual colonoscopy, differs from Colonoscopy in that a CT scanner is used to screen for polyps in the large intestine. Here, a tube is inserted into the rectum to inflate the colon with gas while CT images of the colon and rectum are taken from various angles.

While these options also detect the presence of polyps in the colon, they are less accurate than Colonoscopy; and should polyps be found, Colonoscopy will have to be performed anyway in order to remove them.

This is why Colonoscopy is usually the most recommended diagnostic method for colon cancer. Nonetheless, Dr Koh will advise you accordingly based on your needs and preferences.

Our Surgeon

Dr Dennis KohConsultant Colorectal Surgeon

MBBS (Nottingham), MMed (Surg)
BMedSci (Nottingham), FRCSEd, FAMS

Dr Dennis Koh is a MOH-accredited and experienced colorectal surgeon; and currently the Medical Director at Colorectal Practice.

Dr Koh strives to provide a customized treatment plan for each patient, which allows for better outcomes. He also honed his skills in proctology abroad in Geneva, bringing a more diverse touch to his practice.

Dr Dennis Koh
Dr Dennis Koh

Dr Dennis Koh is a MOH-accredited and experienced colorectal surgeon; and currently the Medical Director at Colorectal Practice.

Dr Koh strives to provide a customized treatment plan for each patient, which allows for better outcomes. He also honed his skills in proctology abroad in Geneva, bringing a more diverse touch to his practice.

Comprehensive Range of Colorectal Services for Your Peace of Mind

Dr Koh tailors his treatment based on your lifestyle requirements and healthcare needs. At our colorectal clinic, we believe in providing personalized care as it allows for better surgical outcomes and creates a supportive environment for our patients.

For a detailed consultation, contact us at 6262 1226 or fill up the contact form below.

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