New endoscopes and add-on devices to improve colonoscopy performance

Colonoscopy is the gold standard for colorectal cancer prevention; however, it is still an imperfect modality. Precancerous lesions can be lost during screening examinations, thus increasing the risk of interval cancer. A variety of factors either patient-, or endoscopist dependent or even the proce...

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Bibliographic Details
Published in:World journal of gastroenterology : WJG 2017-06, Vol.23 (21), p.3784-3796
Main Authors: Gkolfakis, Paraskevas, Tziatzios, Georgios, Dimitriadis, George D, Triantafyllou, Konstantinos
Format: Article
Language:English
Subjects:
Adenoma - diagnosis
Adenoma - prevention & control
Adenomatous Polyps - diagnosis
Colon - pathology
Colonic Polyps - diagnosis
Colonoscopes
Colonoscopy - adverse effects
Colonoscopy - economics
Colonoscopy - instrumentation
Colonoscopy - methods
Colorectal Neoplasms - diagnosis
Colorectal Neoplasms - prevention & control
Early Detection of Cancer - adverse effects
Early Detection of Cancer - instrumentation
Early Detection of Cancer - methods
Equipment Design
Humans
Intestinal Mucosa - pathology
Minireviews
Quality Indicators, Health Care - statistics & numerical data
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Summary:Colonoscopy is the gold standard for colorectal cancer prevention; however, it is still an imperfect modality. Precancerous lesions can be lost during screening examinations, thus increasing the risk of interval cancer. A variety of factors either patient-, or endoscopist dependent or even the procedure itself may contribute to loss of lesions. Sophisticated modalities including advanced technology endoscopes and add-on devices have been developed in an effort to eliminate colonoscopy’s drawbacks and maximize its ability to detect potentially culprit polyps. Novel colonoscopes aim to widen the field of view. They incorporate more than one cameras enabling simultaneous image transmission. In that way the field of view can expand up to 330°. On the other hand a plethora of add-on devices attachable on the standard colonoscope promise to detect lesions in the proximal aspect of colonic folds either by offering a retrograde view of the lumen or by straightening the haustral folds during withdrawal. In this minireview we discuss how these recent advances affect colonoscopy performance by improving its quality indicators(cecal intubation rate, adenoma detection rate) and other metrics(polyp detection rate, adenomas per colonoscopy, polyp/adenoma miss rate) associated with examination’s outcomes.
ISSN:1007-9327
2219-2840
DOI:10.3748/wjg.v23.i21.3784