What is Gastroscopy/Colonoscopy?
What is Gastroscopy Colonoscopy?
This procedure involves an endoscope – a long, thin flexible tube with a ‘video camera’ at the tip – being passed through the mouth into the oesophagus, stomach and first part of the small bowel. It allows the doctor to inspect these areas as well as perform specialised procedures such as biopsies. A gastroscopy is performed as day surgery in hospital.
Why is Gastroscopy/Colonoscopy done?
Gastroscopy is usually performed to evaluate symptoms of indigestion, upper/lower abdominal pain, nausea, vomiting or difficulty swallowing, change in bowel habits FOBT+ It is also the best test for finding the cause of bleeding from the upper/lower gastrointestinal (GI) tract. Gastroscopy/ Colonoscopy is more accurate than x-rays to detect inflammation, ulcers or tumours in the upper/lower GI tract. Biopsies (samples of tissue) can be taken to determine sites of infection, to test the functioning of the small bowel and to diagnose abnormal tissue, including conditions such as coeliac disease and cancerous lesions. Gastroscopy/Colonoscopy is also used to treat conditions of the upper/lower GI tract.
Your doctor can pass small instruments through the endoscope to directly treat many abnormalities with little or no discomfort. For example, your doctor might stretch a narrowed area, remove polyps (usually benign growths) or treat bleeding.
How is Gastroscopy/Colonoscopy performed?
Before the procedure a light anaesthetic (sedative) is usually given – you will not receive a full general anaesthetic. You may be
slightly aware of what is going on in the room, but generally you won’t remember anything. The doctor and medical staff monitor your vital
signs during the procedure and will attempt to make you as comfortable as possible. The procedure takes about 15 to 30 minutes. Once
sedated and lying in a comfortable position on your left side, the endoscope is passed through. The tube is just less than one centimetre in
diameter. A small camera in the end of the scope transmits a video image to a monitor, allowing the doctor to carefully examine the lining
of your upper/lower GI tract.
What happens after Gastroscopy/Colonoscopy?
You will be monitored in the recovery area until most of the effects of the sedation medication have worn off. Your throat might be a
little sore (for Gastroscopy) and you might feel bloated because of the air introduced into your tummy. In most circumstances your doctor
will briefly inform you of your test results on the day of the procedure. A follow-up appointment may be made to discuss the test results
more fully. The results of any biopsies or samples taken will take several days.
Because of the sedation given it is very important that you do not drive a car, travel on public transport alone, operate machinery, sign legal documents or drink alcohol on the same day after the test. It is strongly advised that a friend or relative take you home and stay with you. Full recovery is expected by the next day. Discharge instructions should be carefully read and followed.