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Small Bowel Capsule Endoscopy

Procedure

Small Bowel Capsule Endoscopy

A vitamin-sized capsule with a camera takes thousands of images as it passes through the small bowel, the part of the gut that cannot be reached by upper endoscopy or colonoscopy.

What is it?

Capsule endoscopy is the test used to look inside the small intestine, the part of the gut that lies between the stomach and the large intestine and cannot be reached by standard upper endoscopy or colonoscopy.

You swallow a small wireless capsule that contains a camera. As it travels through the digestive tract, it transmits thousands of images to a recorder you wear on a belt for 8 to 10 hours. It is commonly used to find the source of obscure GI bleeding and to evaluate the small bowel when other tests have not given an answer.

Who needs it?

  • Obscure GI bleeding when upper endoscopy and colonoscopy are normal.
  • Suspected small bowel Crohn disease.
  • Suspected small bowel tumour or polyps.

How it works

You attend the clinic in the morning, swallow the capsule with water, and go about your day with the recorder.

You return in the evening to drop off the recorder. Images are reviewed and a report issued in a few days.

Preparation

  • Clear liquid diet the day before. Nothing by mouth for 12 hours before.

Recovery

  • The capsule passes naturally in a bowel motion within a day or two. You do not need to retrieve it.

Risks

Capsule retention (the capsule getting stuck) is uncommon and occurs mainly in patients with strictures. Screening tests can identify high-risk patients beforehand.

Common questions

Things patients ask us.

Can I work during the recording?

Yes, light activity is fine. Avoid strenuous exercise and MRI scans until the capsule has passed.