Upper GI Endoscopy and Dilatation
This webpage will give you information about an upper GI
endoscopy and dilatation. If you have any questions, you should ask
your GP or other relevant health professional.
What is an upper GI endoscopy?
An upper gastrointestinal (GI) endoscopy is a procedure to look
at the inside of the oesophagus (gullet), stomach and duodenum
using a flexible telescope (see figure 1). This procedure is
sometimes known as a gastroscopy.
A dilatation involves stretching the narrowed area.

Figure 1 - Areas examined by an upper GI endoscopy
Are there any alternatives to an upper GI endoscopy?
An upper GI endoscopy without dilatation or a barium meal are
other investigations.
What does the procedure involve?
An upper GI endoscopy and dilatation usually takes about a
quarter of an hour.
If appropriate, the endoscopist may offer you a sedative to help
you relax.
The endoscopist will place a flexible telescope (endoscope) into
the back of your throat. From here the endoscope will pass on into
your duodenum.
The endoscopist will be able to look for problems in these
organs. They will be able to perform biopsies and take photographs
to help make the diagnosis. The endoscopist can perform a
dilatation using a guidewire and dilators or a balloon dilator.
What complications can happen?
- Sore throat
- Allergic reaction
- Breathing difficulties or heart irregularities
- Making a hole in the oesophagus, stomach or duodenum at the
narrowing
- Damage to teeth or bridgework
- Bleeding
- Incomplete procedure
How soon will I recover?
If you were given a sedative, you will normally recover in about
an hour.
A member of the healthcare team will tell you what was found
during the endoscopy and will discuss with you any treatment or
follow-up you need.
You should be able to go back to work one to two days after the
endoscopy.
Summary
An upper GI endoscopy and dilatation is usually a safe and
effective way of finding out if you have a problem with the upper
part of your digestive system and treating your symptoms.
Acknowledgements
Author: Mr Simon Parsons DM FRCS (Gen. Surg.)
Illustrations: Medical Illustration Copyright © 2011 Nucleus
Medical Art. All rights reserved. www.nucleusinc.com
This document is intended for information purposes only and
should not replace advice that your relevant health professional
would give you.
Copyright © 2011 EIDO Healthcare Limited
The operation and treatment information on this website is produced
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The information should not replace advice that your relevant
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