Bowel Preparation and Colonoscopy Technique To Detect Non-Polypoid Colorectal Neoplasms

Colonoscopy is considered the gold standard for colon cancer screening. In a recent study, however, 0.3% to 0.9% patients developed colorectal cancer within 3 years after removal of adenomas. Some reasons for the development of interval colorectal cancers include missed or incompletely removed lesions during the initial colonoscopy. Non-polypoid colorectal neoplasms are a potential contributor to the pool of missed lesions because they can be easily missed as a result of inadequate colon preparation or examination technique. This article discusses the methods that are useful to improve the quality of bowel preparation and examination technique.

Colonoscopy is considered the gold standard for colon cancer screening. In a recent study, however, 0.3% to 0.9% patients were reported to develop colorectal cancer within 3 years after removal of adenomas. Some reasons for the development of interval colorectal cancers include missed or incompletely removed lesions during the initial colonoscopy. Non-polypoid colorectal neoplasms (NP-CRNs) ( Fig. 1 ) are a potential contributor to the pool of missed lesions because they can be easily missed as a result of inadequate colon preparation or examination technique. ; This article discusses the methods that are useful to improve the quality of bowel preparation and examination technique.