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World J Gastroenterol. 2014 Mar 21;20(11):2746-50. doi: 10.3748/wjg.v20.i11.2746.

Bowel preparations as quality indicators for colonoscopy.

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Jae Young Jang, Hoon Jai Chun, Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul 130-701, South Korea.


Colonoscopy is the principal investigative procedure for colorectal neoplasms because it can detect and remove most precancerous lesions. The effectiveness of colonoscopy depends on the quality of the examination. Bowel preparation is an essential part of high-quality colonoscopies because only an optimal colonic cleansing allows the colonoscopist to clearly view the entire colonic mucosa and to identify any polyps or other lesions. Suboptimal bowel preparation not only prolongs the overall procedure time, decreases the cecal intubation rate, and increases the costs associated with colonoscopy but also increases the risk of missing polyps or adenomas during the colonoscopy. Therefore, a repeat examination or a shorter colonoscopy follow-up interval may be suitable strategies for a patient with suboptimal bowel preparation.


Bower preparation; Colonoscopy; Colorectal neoplasm; Quality

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