Gastroscopy

At Sydney Surgical Associates, we offer expert gastroscopy services to help diagnose and manage a wide range of upper gastrointestinal (GI) conditions.

A gastroscopy, also known as an upper endoscopy, is a safe, minimally invasive procedure that allows direct visual examination of the oesophagus, stomach and the first part of the small intestine (duodenum).

Gastroscopy is one of the most common diagnostic procedures used by general surgeons and gastroenterologists in Australia, with more than 1 million procedures performed annually across the country. It plays a crucial role in the early detection and management of upper-GI diseases, many of which benefit from early diagnosis and intervention.

What Conditions Does Gastroscopy Detect?

Gastroscopy is used to investigate symptoms such as persistent indigestion, abdominal pain, nausea, vomiting, difficulty swallowing, unexplained weight loss, or bleeding. It can also be used for surveillance in patients at higher risk of certain gastrointestinal conditions. The most common conditions screened or diagnosed with gastroscopy include:

GORD occurs when stomach acid flows back into the oesophagus, causing heartburn and irritation. In some cases, it can lead to complications such as oesophagitis or Barrett’s oesophagus.

  • Symptoms: Heartburn, regurgitation, chronic cough, sore throat.
  • Causes: Obesity, smoking, pregnancy, hiatal hernia, poor diet.
  • Treatment: Lifestyle modifications, antacid medications, proton pump inhibitors (PPIs), and in severe cases, surgery.

A condition in which the lining of the oesophagus changes due to chronic acid exposure. Barrett’s oesophagus increases the risk of oesophageal adenocarcinoma.

  • Risk factors: Long-standing GORD, smoking, male gender, age over 50.
  • Surveillance: Regular gastroscopy with biopsy to monitor for dysplasia (precancerous changes).
  • Treatment: Endoscopic therapy (such as radiofrequency ablation), medication, or surgery in advanced cases.

A condition where part of the stomach pushes through the diaphragm into the chest cavity.

  • Symptoms: Heartburn, regurgitation, chest pain.
  • Diagnosis: Often confirmed during gastroscopy.
  • Treatment: Medications, weight management, or surgical repair if severe.

Ulcers can form in the lining of the stomach or duodenum due to excessive acid or infection with Helicobacter pylori.

  • Symptoms: Burning stomach pain, bloating, nausea, vomiting blood, or black stools.
  • Causes: H. pylori, long-term use of NSAIDs, smoking, alcohol.
  • Treatment: Antibiotics for H. pylori, PPIs, avoiding irritants such as NSAIDs and alcohol.

An autoimmune disorder where the ingestion of gluten damages the small intestine lining, impairing nutrient absorption.

  • Symptoms: Diarrhoea, fatigue, anaemia, weight loss, bloating.
  • Diagnosis: Gastroscopy with biopsy of the small intestine.
  • Treatment: Strict lifelong gluten-free diet.

Gastroscopy is the gold standard for diagnosing stomach cancer. According to the Cancer Council Australia, around 2,400 Australians are diagnosed with stomach cancer each year, with a higher incidence in males over 60.

  • Symptoms: Unexplained weight loss, early satiety, nausea, persistent pain, or vomiting blood.
  • Risk factors: H. pylori infection, smoking, diet high in processed meats, family history.
  • Treatment: Surgery, chemotherapy, radiation, or palliative care depending on stage.

Early detection via gastroscopy significantly improves outcomes. Risk factors include GORD, smoking, alcohol and obesity.

  • Symptoms: Difficulty swallowing, weight loss, chest pain.
  • Treatment: Surgery, chemotherapy, or endoscopic treatments if caught early.

 

What to Expect During a Gastroscopy

Gastroscopy is typically performed as a day procedure under light sedation. A thin, flexible tube with a camera (endoscope) is passed through the mouth into the upper-GI tract. It allows your surgeon to inspect the lining of the oesophagus, stomach and duodenum, take biopsies, and treat certain issues on the spot (e.g., bleeding, removing polyps).

The procedure generally takes 10–15 minutes, and most patients recover quickly with minimal discomfort.

Gastroscopy is very safe, but like all medical procedures, it carries some risks. These include:

  • Mild sore throat
  • Reaction to sedation
  • Bleeding (especially after biopsy or polyp removal)
  • Perforation (rare – around 1 in 10,000 procedures)
  • Infection (very rare)


Our experienced surgical team at Sydney Surgical Associates takes every precaution to minimise risks and ensure your safety.

Our surgeons are highly skilled in performing diagnostic and therapeutic gastroscopy. We use the latest technology and adhere to best practice guidelines to ensure high-quality care and accurate diagnosis.

Whether you need a gastroscopy for symptom investigation or routine surveillance, our team provides comprehensive care – from consultation and diagnosis to treatment and follow-up. We work closely with dietitians, gastroenterologists, and oncologists when required to ensure a holistic approach.

Book a Consultation

If you have symptoms of an upper gastrointestinal issue or have been advised to undergo a gastroscopy, contact Sydney Surgical Associates today. Early detection saves lives, and a gastroscopy could provide the answers you need for better health and peace of mind.