What is Gastroscopy?
A gastroscopy is a procedure that uses an endoscope - a thin flexible tube with a camera at the tip - to examine the lining of your throat (oesophagus), stomach, and the first part of the small intestine (duodenum).
During the procedure, biopsies (small tissue samples) can be taken for analysis, and polyps can be removed if found. It is one of the most common and valuable diagnostic tools in gastroenterology.
Why is Gastroscopy Done?
Your doctor may recommend a gastroscopy to investigate a range of symptoms, including:
- Persistent indigestion or heartburn
- Abdominal pain
- Nausea and vomiting
- Difficulty swallowing
- Unexplained weight loss
- Chronic diarrhoea
Gastroscopy can help detect inflammation, ulcers, tumours, infections, and conditions such as coeliac disease.
How Do I Prepare for Gastroscopy?
To allow a clear view of your upper gastrointestinal tract, preparation involves:
- Fasting: Do not eat for at least 6 hours before the procedure.
- Liquids: Stop drinking clear fluids at least 2 hours before.
- Medications: Discuss any blood-thinning medications or anti-diabetic drugs with Dr Fazal before the procedure, as these may need to be adjusted.
How is Gastroscopy Performed?
You will receive light sedation through an intravenous line to keep you comfortable. The endoscope is gently passed through your mouth into the oesophagus, stomach, and duodenum.
The procedure typically takes 15 to 30 minutes. Your vital signs - heart rate, blood pressure, and oxygen levels - are monitored continuously throughout.
What Happens After Gastroscopy?
After the procedure, you will rest in the recovery area until the sedation wears off. For the remainder of the day, you must not:
- Drive a vehicle
- Travel alone on public transport
- Operate heavy machinery
- Sign legal documents
- Drink alcohol
Please arrange for someone to drive you home and stay with you for the rest of the day.
Are There Any Risks or Side Effects?
Gastroscopy is considered a very safe procedure. Complications are rare but may include:
- Mild sore throat
- Temporary bloating
- Minor bleeding (especially if biopsies are taken)
- Very rarely, perforation (a tear in the lining)
Seek immediate medical attention if you experience any of the following after your procedure: fever, chest or abdominal pain, vomiting blood, or dark/black stools.