Dr Kenneth Koo

Specialist in Endoscopic Procedures in Singapore With 20 Years Experience

  • Endoscopic procedures are one of the safest non-surgical procedures for diagnosing and treating gastrointestinal (GI) illnesses.

Dr Kenneth Koo has extensive experience in treating various GI conditions in adults and is expertly trained in endoscopic procedures.

How Are Endoscopic Procedures Performed?

For upper GI endoscopies a mouth guard will be placed to ensure that the endoscope will not damage your teeth. The flexible endoscope will be passed through your mouth and down your throat into the oesophagus, stomach and duodenum.

Air will be used to inflate your stomach and duodenum giving a proper view of the lining. The camera fitted on the end of the tube will send images into a monitor in the procedure room. Through this monitor, your gastroenterologist will visualise the lining of your digestive system. If any abnormalities are detected, your doctor will be able to take a piece of tissue (biopsy) for further examination if necessary. Small growths ( polyps ) may be removed as well. Once the procedure is completed, the tube will be removed. The procedure generally takes about 15 minutes and sedation can be given to minimise any discomfort.

Colonoscopies are similar in concept as gastroscopes but are inserted through the anus for examination of the colon. It generally takes about 30 minutes to perform and again sedation can be given to minimise any discomfort.

About our Gastroenterologist

Dr Kenneth Koo

Senior Consultant Gastroenterologist

Gleneagles Medical Centre

  • MBBS
  • M Med (Int Med)
  • MRCP (UK)
  • FRCP (Edin)

Dr Kenneth Koo is an experienced gastroenterologist with more than 20 years’ experience and is well trained in managing all types of digestive and liver conditions.

Prior to joining private practise, Dr Kenneth Koo was Director of Gastroenterology and Senior consultant at Ng Teng Fong General Hospital. An integral member of the team which transitioned from Alexander Hospital to Ng Teng Fong General Hospital in 2015, he was responsible for overseeing all aspects of the gastroenterology division including the growth, development and governance.

Dedication to his patients and clinical practise can be seen from several service quality awards obtained over the years.

What Are Endoscopic Procedures?

Endoscopic procedures are used to examine the inner lining of your digestive tract. Endoscopic procedures are done to investigate the signs and symptoms of digestive problems. Biopsies can also be taken during the procedure if necessary. At times the procedure may also be used to treat conditions like bleeding or removing foreign substances.

Gastroscopy (Upper GI Endoscopy)

Gastroscopy (upper GI endoscopy) examines the oesophagus, stomach and the beginning of the small intestine known as the duodenum. The procedure uses an instrument known as an endoscope which is a long, thin and flexible tube attached with a tiny lighted camera at one end. This endoscope is inserted through the mouth. Oesophagoscopy examines the oesophagus only whereas a gastroscopy examines the stomach. The instrument used is known as an oesophagoscope and gastroscope respectively. Both these endoscopes are inserted through the mouth.


Lower GI endoscopic procedures include colonoscopy which is done to examine the entire length of the large bowel. This process utilises a similar flexible lighted tube known as a colonoscope which is inserted through the anus.


Sigmoidoscopy is used to inspect the descending colon, sigmoid colon and rectum.

Make An Enquiry

Dr Koo strives to provide accurate diagnosis & effective treatments for each patient. Our team will guide you through the treatment & recovery process, ensuring you get the highest level of care & service.

Why Do Patients Choose
The GI & Liver Center

  • Previous Director of Gastroenterology & Senior consultant at Ng Teng Fong General Hospital
  • More Than 20 Years’ Experience
  • Accurate Diagnosis Through Comprehensive Screening Tools
  • Accepting Patients With & Without Insurance
  • Transparent & Honest Charges

Enquire Today

Dr Koo is committed to personalised patient care.
Contact us to learn more about our treatments and our fees.

How Do Endoscopic Procedures Help in the Treatment of GI Conditions?

  • They can be used to stop the bleeding eg from ulcers
  • They can be used to remove polyps or foreign objects.
  • They can be used to widen narrow parts of the gastrointestinal tract

Possible Risks

Diagnostic endoscopic procedures for a healthy person are generally safe, especially when performed by experienced specialists. The risks of complications associated with the procedures are small. Complications include:

  • Perforation of the gastrointestinal tract. This occurs in approximately 1 in 10,000 cases for gastroscopy and 1 in 1000 for colonoscopy.
  • Bleeding after polyp removal or biopsies.
  • Complications from sedation eg breathing difficulties, low blood pressure, lung infection
Billing & Insurance

Partnered Programs & Insurance Plans

We accept a range of policies that covers individual health insurance as well as corporate insurance plans. We have partnered with many insurance companies such as Aviva, IHP, Great Eastern, and more!

Our Clinic

Feel free to drop by at our clinic at 6 Napier Road #06-16, Gleneagles Medical Center, Singapore 258499

Enquire With Us

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Please Note: Adult patients ONLY.

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    Visit Our Clinic

    The GI & Liver Center

    6 Napier Road #06-16
    Gleneagles Medical Center
    Singapore 258499


    Mon-Fri: 9am – 12.30pm and 2pm - 5pm
    Sat: 8.30am – 12.30pm
    Sun & PH: Closed