Laterally Spreading Tumors of the Colon During High Resolution Colonoscopy with Narrow Band Imaging and Acetic Acid Chromoscopy
Journal Title: Гастроентерологія - Year 2015, Vol 1, Issue 55
Abstract
Colon cancer may arise from laterally spreading tumors. Efficacy of colonoscopy for the diagnosis of these tumors is underinvestigated. Objective. To study diagnostic accuracy of high resolution colonoscopy with narrow band imaging and acetic acid chromoscopy in detecting laterally spreading tumors. Materials and Methods. 1632 colonoscopy protocols were studied: 735 — by using video colonoscope Olympus CF-HQ190L and 897 — Olympus CF-150. Results and Discussion. In study group, adenoma detection rate was higher than in control one: 0.78 (571/735) vs. 0.47 (422/897), p < 0.00001; c2 = 157.9. Adenoma detection index was 3.6 times higher in study group than in control one: 2.9 (2,104/735) vs. 0.8 (708/897). Laterally spreading tumors were diagnosed 2.2 times more often in study group than in control one: 22 % (187/735) vs. 10 % (85/897), p < 0.00001; c2 = 53.6. Conclusions. High resolution colonoscopy with narrow band imaging and acetic acid chromoscopy has a high diagnostic value for detection of laterally spreading tumors of the colon.
Authors and Affiliations
V. A. Yakovenko
Keywords
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