![]() It also highlights the management of incomplete colonoscopy and discusses new techniques and technologies that can be utilized to improve visualization of the entire colon.įactors Contributing to an Incomplete Colonoscopy ![]() 10 - 13 This article reviews the potential factors of an incomplete colonoscopy and the strategies for preventing such a situation. Incomplete colonoscopy rates vary from 4% to 25%. In certain situations, an endoscopist will encounter difficulty in advancing the colonoscope through the colon, leading to incomplete colonoscopy. 8 Current guidelines propose targets for successful cecal intubation rates of at least 90% for all colonoscopies and at least 95% for screening colonoscopies, with the knowledge that the majority of clinicians will exceed these minimal standards. 7 Therefore, complete colonoscopy can reduce the rates of interval proximal colon cancer. 6 Another study found that the risk of proximal cancer increased 2-fold when colonoscopy was not complete. A large, multicenter trial of patients undergoing screening colonoscopy found that 50% of patients had significant dysplastic lesions in the proximal colon. 5 Performing a complete colonoscopy is vital for minimizing polyp miss rates in all segments of the colon, including right-sided lesions. Cecal intubation is defined as the advancement of the colonoscope tip to a point proximal to the ileocecal valve so that the whole cecal caput, including the medial wall of the cecum, is seen. 2 - 4 The overall success of screening colonoscopy depends upon several parameters such as bowel preparation, cecal intubation rate, withdrawal time, and adenoma detection rate. In addition, colonoscopy with polypectomy reduces the incidence of CRC by up to 90%. ![]() The advantages of colonoscopy include complete visualization of the colon, detection and removal of polyps, and tissue sampling of significant lesions. 1 Since the introduction of colonoscopy in the 1960s, the technology associated with this procedure has progressed considerably. ![]() Colonoscopy is the most widely used screening modality for the detection and removal of colon polyps and for the prevention of colorectal cancer (CRC). ![]()
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