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KMID : 0988920140120020110
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Intestinal Research
2014 Volume.12 No. 2 p.110 ~ p.116
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Colonoscopy Quality is the Answer for the Emerging Issue of Interval Cancer
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Cha Jae-Myung
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Abstract
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Colonoscopy is currently regarded as the gold standard and preferred screening method for colorectal cancer (CRC). Recently,however, a limitation of colonoscopy in the prevention of CRCs has been identified, particularly in the right-sided colon, andthe problem of so-called interval cancers has emerged. The prevalence of interval cancer is estimated to be between 4% and 8%of CRCs detected. Although the exact etiology of interval cancer remains unknown, factors implicated in the development ofinterval cancers include missed lesions at the time of colonoscopy, incomplete resection of previous neoplastic lesions, differenttumor biology, and serrated pathway of carcinogenesis. However, recent evidence suggests that interval cancers are relatedto the training of the endoscopist and quality of the colonoscopy rather than tumor biology. Therefore, the importance of adequatetraining and continuous monitoring of the colonoscopy quality, which are amenable to improvement, cannot be overstatedin order to prevent the risk of interval cancers. In this study, the current literature regarding the prevalence and potentialfactors related to interval cancers and colonoscopy quality-related issues are reviewed. (Intest Res 2014;12:110-116)
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KEYWORD
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Colonic neoplasms, Colonoscopy, Education, Interval cancer, Quality
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