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Underwater Colonoscopy

By |September 18th, 2017|0 Comments
  • Underwater Colonoscopy

This article may be of interest to our GI clients and partners, and the general public.

Researchers have found that “underwater” colonoscopy enables endoscopists to detect considerably more polys than traditional air insufflation.  This includes more sessile serrated polyps in the right colon.

People with a history of inflammatory bowel disease or who have a family history which puts them at a higher risk for colorectal cancer may benefit.

This procedure should be considered by Gastroenterologists who do a high number of screening.  The underwater colonoscopy improves the detection of polyps, thus helping reduce the development of interval cancers.

The improved detection of polyps is due to the use of water to “float” the mucosa, which aids in the magnification and buoyancy of lesions that are flat.  As the lesions float up and are easier to see, this in turn eases removal of otherwise unseen lesions.

In addition to the above advantage, this method of colonoscopy also provides more comfort for the patient.  There is less pain on insertion of the scope due to the water distending and straightening the sigmoid colon.

Underwater colonoscopy is associates with higher detection of sessile lesions, primarily by right-sided polyps.  Premalignant flat (or sessile) lesions of the colon are easier to observed in both men and women.

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