FAQ – Gastroscopy Surgery

You have been scheduled for a gastroscopy (also called upper endoscopy). This is a procedure that allows the doctor to examine the inside of your oesophagus, stomach, and duodenum (first part of the small intestine) using a thin, flexible tube with a light and camera. It is performed as a day-case under sedation and typically takes less than 30 minutes.

Why is Gastroscopy Performed?

Your doctor may recommend a gastroscopy to investigate:

Persistent heartburn or acid reflux.
Difficulty swallowing.
Unexplained upper abdominal pain or bloating.
Nausea, vomiting, or suspected ulcers.
Unexplained anaemia or low iron levels.

Preparing for Your Gastroscopy

Do not eat or drink anything (including water) for **at least 6 hours** before your procedure.
If you take medications, you may take them with a small sip of water unless otherwise instructed.
Please inform us if you are on blood thinners, insulin, or have known allergies to sedation medications.
Arrange for someone to drive you home, as you will not be allowed to drive after sedation.

On the Day of the Procedure

The day of your operation.

You will be admitted to the endoscopy unit and seen by the anaesthetist.
The procedure is done under light sedation, and most patients do not remember it.
The endoscope is passed through the mouth and guided gently down into the stomach and duodenum.
Biopsies may be taken if needed—this is painless.

After the Procedure

After your operation.

You will be monitored in recovery for 30–60 minutes.
You may feel bloated or have a mild sore throat for a few hours.
You can resume eating once fully awake unless told otherwise.
A written report will be provided, and any biopsy results will be discussed at follow-up.

Contact Us

If you have any questions or concerns, please contact WA Surgery prior to your procedure.

Download Patient Information

During working hours please contact Our Surgeon's rooms.
In case of an acute emergency or on weekends/bank holiday or aft er-hours, please report to the nearest emergency department or to your GP practice.