What is a Gastroscopy?

Gastroscopy is an upper gastrointestinal endoscopy. This procedure enables your Doctor to examine the lining of the upper part of your gastrointestinal tract, i.e. the oesophagus (swallowing tube), stomach and duodenum (first portion of the small intestine) for any abnormalities more accurately than x-ray.


Gastroscopy is usually performed to evaluate symptoms such as:


  • Persistent upper abdominal pain
  • Nausea
  • Vomiting
  • Difficulty swallowing
  • Reflux


It is also the best test for finding the cause of bleeding from the upper gastrointestinal tract.


Gastroscopy is usually more accurate than x-rays for detecting inflammation, ulcers or tumours of the oesophagus, stomach and duodenum. Gastroscopy can detect early cancer and can distinguish between benign and malignant (cancer) conditions by performing biopsies (taking small tissue samples) of suspicious areas. Biopsies are taken for many reasons and do not necessarily mean that cancer is suspected.


If narrowed areas are found, these may be treated by stretching them up with a dilator passed down the endoscope. If small growths (polyps) are found, these may be removed during the procedure.


Prior to your procedure you will be given a light anaesthetic via injection. This will make you sleepy and comfortable for the duration of your procedure. The small video camera called an endoscope, is then gently inserted through the mouth and produces images that are viewed on screen by our specialists.


To ensure the safe and effective practice of Gastroscopy, specific preparation of your digestive system is required. For our Gastroscopy Preparation Instructions please click on the link below.


Procedure Preparation - Gastroscopy

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