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Gastroscopy & Colonoscopy

Gastroscopy

What is a Gastroscopy?

A gastroscopy is a procedure performed under light sedation in hospital to investigate and diagnose several problems involving the upper gastrointestinal tract (oesophagus, stomach, first part of small bowel). It is performed using an instrument called a gastroscope which is a flexible tube camera that is about the thickness of a finger. It is inserted via the mouth and allows the surgeon to carefully examine the lining of oesophagus, stomach and first part of the small bowel. Any abnormalities may be sampled (biopsied) and examined in the laboratory to assist with diagnosis. Possible procedures performed in a gastroscopy may include a biopsy, polypectomy, bleeding intervention.

Indications

  • Bleeding
  • Heartburn
  • Nausea
  • Vomiting
  • Abdominal pain
  • Swallowing difficulties
  • Family history of gastric cancers

Possible Findings

  • Gastro-oesophageal reflux
  • Gastritis (inflamed stomach)
  • Hiatus Hernia
  • Ulcers
  • Dilated blood vessels
  • Intestinal bleeding
  • Oesophageal stricture
  • Cancer
  • Coeliac’s disease

Other Risks

  • Bleeding
  • 1/25 000 perforation
  • Missed lesions
  • Anaesthetics
  • Aspiration pneumonia

Colonoscopy

What is a Colonoscopy?

A colonoscopy is a procedure performed under light sedation in hospital to investigate and diagnose several problems involving the colon (large bowel). It is performed using an instrument called a colonoscope which is a flexible tube camera that is about the thickness of a finger. It is inserted via the rectum into the colon and allows the surgeon to carefully examine the lining of the bowel. Any abnormalities may be sampled (biopsied) and examined in the laboratory to assist with diagnosis.

What are the indications for a colonoscopy?

  • Indications for a colonoscopy may include but are not limited to any of the following:
  • Family or personal history of colonic polyps or bowel cancer
  • Known medical condition that increases risk of bowel cancer
  • Symptoms of bowel cancer
  • Bleeding from the bowel
  • Positive screening faecal occult blood test
  • Anaemia (low blood count)
  • Iron deficiency
  • Change in bowel habits
  • Unexplained weight loss
  • Abdominal/rectal mass
  • Suspicious findings on investigations

What Is a Polypectomy?

Polyps are an excessive growth of tissue within the lining of the large bowel wall. They vary in size, location and numbers and can occur anywhere throughout the large bowel. Some polyps can develop cancer. Removal of polyps prior to cancerous changes can prevent bowel cancer. During a colonoscopy the polyps seen will be removed if possible or biopsied if too large to removed during colonoscopy. This is achieved by passing a wire loop through the colonoscope and snaring the base of the polyp, which is then severed from its attachment to the bowel wall by means of an electric current. This current cannot be felt and causes no pain. After colonoscopy polypectomy the patient is allowed to resume usual activities. If the polyp was too large to be removed the surgeon will discuss further treatment.

Is Any Special Preparation Necessary?

Yes. For a successful colonoscopy, it is essential that the bowel is thoroughly emptied. This will usually mean taking clear liquids as well as a special laxative at home before the colonoscopy. More specific preparation instructions will be given to you.

What Happens After Colonoscopy?

Following the colonoscopy, once you are fully awake you will usually be able to resume a normal diet and go home the same day. You will need to have a responsible adult with you for the first 24 hours and cannot drive during this period due to the effects of the anaesthetic. You will be followed up by the surgeon in the following week with the results of the procedure and any biopsies/polypectomy explained. Any further procedures or management will be based on the findings.

Are There Any Complications From Colonoscopy Or Polypectomy?

Colonoscopy and polypectomy are very safe procedures with a very low risk of complications. Possible complications include:

  • 1 in 1000 risk of bowel perforation
  • Missed lesion
  • Bleeding
  • Infection
  • Pain
  • Further procedures
  • Anaesthetics

Would weight loss surgery benefit you?

BMI is one of the leading ways of measuring obesity, find out if you’re a candidate for surgery. Body Mass Index (BMI) is a person’s weight in kilograms divided by their height in meters squared. The Nation Institute of Health defines normal weight, overweight and obesity according to BMI.

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If you do not meet the BMI or weight criteria, you still may be considered for surgery if your BMI is over 30 and you are suffering serious health problems related to obesity.

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If you choose we can share information about your health, medical history and lifestyle with our team who will determine whether you are a candidate for weightloss surgery.

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