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Colonoscopy

A test to look into the rectum and colon that uses a long, flexible, narrow tube with a light and tiny camera on the end. The tube is called a colonoscope.

PubMed Health Glossary
(Source: NIH - National Institute of Diabetes and Digestive and Kidney Diseases)

What works? Research summarized

Evidence reviews

[Transparent Cap Colonoscopy versus Standard Colonoscopy to Improve Caecal Intubation]

Fourteen randomised controlled trials were included in the review comparing Colonoscopy with the Transparent Cap with Standard Colonoscopy in the investigation of gastrointestinal tract conditions. The findings of our work suggest that there is improvement in time to caecal intubation (which indicates that the colonoscopy is complete) when using the transparent cap compared with standard colonoscopy, although this is not statistically significant. We conclude that further research is required to assess the clinical significance of this result, especially considering that there have been no adverse events noted.]

Chromoscopic colonoscopy enhances polyp detection compared with conventional colonoscopy

Colonoscopy is a diagnostic test that enables small growths in the bowel (polyps) to be detected. These lesions can develop into cancer in approximately 5% of the cases. Although the test is the most sensitive test that exists for the detection of these growths, some may be missed. If a simple dye spraying technique (chromoscopy) is used with the colonoscopic test, the detection of these lesions may be enhanced. Several studies have examined the effect of chromoscopy on enhancing polyp detection but the data is inconsistent. This review investigated whether chromoscopy can enhance polyp detection compared with conventional colonoscopy.

Narrow band imaging colonoscopy is not better than white light colonoscopy in detecting the patients with colorectal polyps.

Cancer of the large bowel is the third most common cancer worldwide. It has been suggested that colorectal polyps are precursors of colorectal cancer. Consequently, early detection and removal of colorectal polyps is important in secondary prevention of colorectal cancer. A number of randomised trials comparing narrow band imaging colonoscopy (a high resolution endoscopic technique that enhances the fine structure of the mucosal surface) with white light colonoscopy for detection of colorectal polyps reported variable results.

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Summaries for consumers

[Transparent Cap Colonoscopy versus Standard Colonoscopy to Improve Caecal Intubation]

Fourteen randomised controlled trials were included in the review comparing Colonoscopy with the Transparent Cap with Standard Colonoscopy in the investigation of gastrointestinal tract conditions. The findings of our work suggest that there is improvement in time to caecal intubation (which indicates that the colonoscopy is complete) when using the transparent cap compared with standard colonoscopy, although this is not statistically significant. We conclude that further research is required to assess the clinical significance of this result, especially considering that there have been no adverse events noted.]

Chromoscopic colonoscopy enhances polyp detection compared with conventional colonoscopy

Colonoscopy is a diagnostic test that enables small growths in the bowel (polyps) to be detected. These lesions can develop into cancer in approximately 5% of the cases. Although the test is the most sensitive test that exists for the detection of these growths, some may be missed. If a simple dye spraying technique (chromoscopy) is used with the colonoscopic test, the detection of these lesions may be enhanced. Several studies have examined the effect of chromoscopy on enhancing polyp detection but the data is inconsistent. This review investigated whether chromoscopy can enhance polyp detection compared with conventional colonoscopy.

Narrow band imaging colonoscopy is not better than white light colonoscopy in detecting the patients with colorectal polyps.

Cancer of the large bowel is the third most common cancer worldwide. It has been suggested that colorectal polyps are precursors of colorectal cancer. Consequently, early detection and removal of colorectal polyps is important in secondary prevention of colorectal cancer. A number of randomised trials comparing narrow band imaging colonoscopy (a high resolution endoscopic technique that enhances the fine structure of the mucosal surface) with white light colonoscopy for detection of colorectal polyps reported variable results.

See all (29)

More about Colonoscopy

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Also called: Endoscopy of the colon

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