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Endoscopy

Gastroscopy

Upper gastrointestinal endoscopy for investigation of reflux, indigestion, heartburn, and upper GI symptoms. Performed by a GESA-certified endoscopist under sedation.

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What is a gastroscopy?

A gastroscopy (also called an upper GI endoscopy) is an examination of the oesophagus, stomach, and first part of the small intestine (duodenum). A flexible camera is passed through the mouth to allow direct visualisation of the upper digestive tract. It is the most accurate way to investigate persistent upper GI symptoms and can diagnose conditions that are not visible on imaging.

During the procedure, biopsies can be taken and treatments performed — such as stopping bleeding or dilating a narrow area. The procedure is performed under sedation and is well tolerated.

Why you may need a gastroscopy

Persistent Heartburn / Reflux

Ongoing acid reflux symptoms despite medication. Gastroscopy checks for oesophagitis, Barrett's oesophagus, or hiatal hernia.

Indigestion and Upper Abdominal Pain

Persistent pain or discomfort in the upper abdomen that doesn't respond to standard treatment.

Difficulty Swallowing

Feeling of food getting stuck or difficulty swallowing. Gastroscopy can identify strictures, inflammation, or other causes.

Anaemia or Bleeding

Unexplained iron deficiency anaemia, vomiting blood, or dark stools. Gastroscopy can identify the source of upper GI bleeding.

When to seek evaluation

If you're experiencing any of the following, a gastroscopy may be recommended:

GESA Certification: Our endoscopist holds the GESA (Gastroenterological Endoscopy Society of Australia) certification — the highest standard for endoscopic practice in Australia, requiring advanced training and ongoing quality assurance.

What to expect

Gastroscopy is a day procedure. You'll be sedated for comfort, and the examination typically takes 10–20 minutes. You can go home the same day.

Preparation

No bowel preparation is needed. You'll need to fast for 6–8 hours before the procedure. Regular medications can usually be continued — we'll advise you specifically during your consultation.

The Procedure

Performed under sedation (twilight sleep). A local anaesthetic spray may be applied to the throat. The endoscope is passed through the mouth into the oesophagus, stomach, and duodenum. The endoscopist examines the lining, takes biopsies if needed, and can perform treatments during the same procedure.

Afterwards

Recovery

Rest for a few hours. You'll need an adult to drive you home. Most people feel fine the next day and can resume normal activities.

Results

Initial findings discussed with you before you leave. Detailed report and biopsy results sent to your referring doctor within a week.

Follow-up

If abnormalities were found, we'll discuss the findings and recommend a management plan — which may include medication, further investigation, or surgical referral.

Combined Procedures

Gastroscopy and colonoscopy can be performed together in one session. This means one preparation, one anaesthetic, and one recovery period.

Related Services

Colonoscopy

Bowel cancer screening, diagnostic evaluation, and polyp removal.

Anti-Reflux / GERD

Surgical management of persistent acid reflux and hiatal hernia.

Ready to get answers?

Book a bulk-billed consultation with our specialist general surgeons. No out-of-pocket cost for your initial assessment.

Book Consultation 📞 03 9421 1166