Toshio Uraoka 1 , Shinji Tanaka 2 , Shiro Oka 2 , Takahisa Matsuda 3 , Yutaka Saito 3 , Tomohiko Moriyama 4 , Reiji Higashi 5 , Takayuki Matsumoto 4 Show Affiliations »
Abstract
BACKGROUND AND STUDY AIMS: Lesions may be missed during colonoscopy because of anatomical features such as mucosal folds. This feasibility study assessed the safety and efficacy of a novel colonoscope with extra-wide angle of view, which provides a simultaneous lateral-backward view to complement the forward view. PATIENTS AND METHODS: Consecutive patients undergoing colonoscopy using the prototype colonoscope were enrolled in this multicenter, single-arm study. The number of adverse events, and the first detection of adenomas during withdrawal by the lateral-backward view and the forward view were evaluated. RESULTS: A total of 47 patients underwent colonoscopy examination to the cecum. The mean insertion and withdrawal times were 6.4 ± 4.9 minutes and 8.6 ± 4.2 minutes, respectively. Of 47 detected polyps, 28 adenomatous polyps were found (mean size 3.3 ± 3.1 mm). A total of 29 polyps (61.7 %) and 16 adenomatous polyps (57.1 %) were first detected with the lateral-backward view. The lateral-backward view first detected 5/6 adenomatous polyps (83.3 %) in the ascending colon and all (2/2) adenomatous polyps in the sigmoid colon. No adverse events occurred during the study. CONCLUSIONS: This exploratory study suggested that a novel colonoscope with extra-wide angle of view is safe and feasible, and has the potential to improve colorectal adenoma detection. TRIAL REGISTER: UMIN000016450. © Georg Thieme Verlag KG Stuttgart · New York.
BACKGROUND AND STUDY AIMS: Lesions may be missed during colonoscopy because of anatomical features such as mucosal folds. This feasibility study assessed the safety and efficacy of a novel colonoscope with extra-wide angle of view, which provides a simultaneous lateral-backward view to complement the forward view. PATIENTS AND METHODS: Consecutive patients undergoing colonoscopy using the prototype colonoscope were enrolled in this multicenter, single-arm study. The number of adverse events, and the first detection of adenomas during withdrawal by the lateral-backward view and the forward view were evaluated. RESULTS: A total of 47 patients underwent colonoscopy examination to the cecum. The mean insertion and withdrawal times were 6.4 ± 4.9 minutes and 8.6 ± 4.2 minutes, respectively. Of 47 detected polyps , 28 adenomatous polyps were found (mean size 3.3 ± 3.1 mm). A total of 29 polyps (61.7 %) and 16 adenomatous polyps (57.1 %) were first detected with the lateral-backward view. The lateral-backward view first detected 5/6 adenomatous polyps (83.3 %) in the ascending colon and all (2/2) adenomatous polyps in the sigmoid colon . No adverse events occurred during the study. CONCLUSIONS: This exploratory study suggested that a novel colonoscope with extra-wide angle of view is safe and feasible, and has the potential to improve colorectal adenoma detection. TRIAL REGISTER: UMIN000016450. © Georg Thieme Verlag KG Stuttgart · New York.
Entities: Disease
Species
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Year: 2014
PMID： 25412088 DOI： 10.1055/s-0034-1390870
Source DB: PubMed Journal: Endoscopy ISSN： 0013-726X Impact factor: 10.093