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Endoscopic ultrasound (EUS) combines endoscopy with ultrasound. It can give a very accurate picture of your gullet (oesophagus), stomach, pancreas and bile duct.

An endoscope is a long, flexible tube with a bright light and a camera on the end of it. It is used for looking inside the body. In EUS, this is combined with high-frequency sound waves, transmitted from an ultrasound probe at the tip of the endoscope. This allows a scan of the surrounding organs.

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The Procedure

You will be asked not to eat or drink anything for at least 6 hours before the scan. You will be given a sedative injection in your arm with a drug to make you sleepy and relaxed.

When you are ready, a thin tube will be put into one nostril to give you some extra oxygen, and a plastic mouthpiece will be placed gently between your teeth to keep your mouth open. The endoscope is passed through the mouthpiece, down the gullet, into the stomach, and into the small bowel.  Dr Bansi may take biopsies at this point. 

You will be able to breathe normally. It will take about 20 minutes to complete the examination.


Afterwards, you will be taken to a recovery room. Any discomfort should soon go. If you have been sedated, you will be sleepy and forgetful. For this reason, you must have someone to take you home and stay with you while you rest for the day. For the 24 hours following the injection, you must not drive a car or motorbike, operate machinery, take any alcohol or sign legal documents.

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From well-equipped and convenient locations across West and central London, Devinder and his expert team provide unparalleled quality of care for the full range of GIT-related conditions.