Gastroscopy

Gastroscopy is a very commonly performed and generally safe procedure. For most people, the benefits of having a clear diagnosis, or quick and effective treatment are much greater than any disadvantages. However, like all invasive medical procedures, there are some risks. These can be divided into the risk of side-effects and the risk of complications.

Side-effects

These are the unwanted, but usually mild and temporary, effects of a successful procedure. After a gastroscopy, you may feel bloated, but this usually clears up quite quickly. If you have a sedative, it may make you feel sleepy.

Complications

Your doctor will be very experienced at performing endoscopies but, even so, a few are not successfully completed and may need to be repeated.

Other complications are uncommon, but it is possible for the oesophagus, stomach or intestine to be damaged or, in rare and extreme cases, perforated during the procedure. This can lead to bleeding and infection, which may require treatment with medicines or surgery.

The chance of complications depends on the exact type of procedure you are having and other factors such as your general health. You should ask your specialist to explain how these risks apply to you.

If a sedative has been given, the procedure will not start until it has taken effect. With you resting comfortably on your side, on a bed or examining couch, the endoscope will be carefully inserted into your mouth. The natural swallowing action will help the endoscope pass into the gullet and down towards the stomach.

Air will be passed through the tube and into the stomach to make the lining easier to see. When this happens, you may briefly feel a sensation of fullness or nausea. At the end of the endoscope, a tiny light and lens enable the doctor to see if any disease is present. If necessary, the doctor will take a small biopsy of tissue for analysis. This is a quick and painless process, using specialist instruments that can be passed inside the endoscope. 

When the examination is finished, the endoscope is removed quickly and easily.

You will rest in a full-length chair or on a bed for about half an hour, or longer if you've had a sedative.

The effects of any sedative may last longer than you expect, so you should not drive, operate machinery or drink alcohol for 24 hours after your examination. This means that you will have to arrange for someone to take you home and stay with you for the first day.

Once home, it's sensible to take it easy for the next 24 hours. Most patients feel able to resume normal activities on the following day.

This information was published by Bupa Group's Health Content Team and has been reviewed by appropriate medical or clinical professionals. To the best of their knowledge the information is current and based on reputable sources of medical evidence, however Bupa (Asia) Limited makes no representation or warranty as to the completeness or accuracy of the Content.

The information on this page, and any information on third party websites referred to on this page, is provided as a guide only. It should not be relied upon as a substitute for professional medical advice, nor is it intended to be used for medical diagnosis or treatment. Bupa (Asia) Limited is not liable for any loss or damage you suffer arising out of the use of, or reliance on, the information.

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