Gastroscopy

What a gastroscopy examines

A gastroscopy, also called an upper GI endoscopy, examines the oesophagus, the stomach and the first part of the small intestine. A slim, flexible tube with a light and a camera is passed gently through the mouth so we can see the lining directly on a screen.

It is the definitive test for reflux that will not settle, difficulty swallowing, upper abdominal pain, suspected ulcers and unexplained anaemia.

Why it is worth doing

Many people in Lagos manage stomach symptoms for years with over-the-counter medication. That treats the sensation without ever identifying the cause. A gastroscopy takes minutes and tells us whether there is an ulcer, inflammation, H. pylori infection or something that needs closer attention.

While we are there we can act, not just look. We take biopsies painlessly, test for H. pylori, stop a bleeding ulcer with injection or clips, and stretch a narrowed oesophagus where that is the problem.

Preparation

Your stomach must be empty, so no food for around six hours beforehand. Clear fluids are usually allowed until a few hours before, and the unit will confirm exact timings when you book.

Tell us about all your medicines, particularly blood thinners and diabetes medication, as these may need adjusting. Never stop prescribed medication without advice.

On the day

You are offered either a numbing throat spray or light sedation. Most people choose sedation, and with it remember very little afterwards. Your oxygen and heart rate are monitored throughout and a nurse stays with you.

The procedure itself usually takes ten to twenty minutes. Afterwards you rest until any sedation wears off, then go home the same day. If you were sedated you must not drive, so bring someone with you.

Results

We can usually tell you what we saw once you are alert. If we took a biopsy, the laboratory result follows. A written report with images goes to your referring doctor on the same day.