About the Third Eye Retroscope and Avantis Medical Systems, Inc.
Avantis Medical Systems, Inc., markets the Third Eye Retroscope, an FDA-cleared, disposable, catheter-based camera indicated for use with a standard colonoscope to provide an additional view of the colon for diagnostic purposes. It is inserted through the instrument channel of a standard colonoscope to provide the physician with a retrograde (backward) view of the lining of the colon simultaneously with the forward view of the standard colonoscope.
Although colonoscopy is the gold standard for preventing colorectal cancer by finding and removing adenomas and other lesions, the medical literature documents that up to 21-24% of adenomas of all sizes(5,6) and 12% of adenomas at least 1 cm in size can be missed. (7,8)
Clinical evidence shows that two-thirds of the adenomas that are missed during colonoscopy are located behind folds in the wall of the colon,(8) where they are often unseen in the forward view of the colonoscope, even during the most meticulous examinations.
The retrograde view provided by the Third Eye Retroscope allows physicians to see more of the colon and can reveal lesions that are hidden behind folds.
For more information, visit www.ThirdEyeColonoscopy.com.
(1) National Cancer Institute. Colon and Rectal Cancer. http://www.cancer.gov/cancertopics/types/colon-and-rectal
(2) Siegel R, Ward E, Brawley O, Jemal A. Cancer Statistics, 2011. CA Cancer J Clin 2011;61:212-236.
(3) American Cancer Society. Importance of colorectal cancer screening http://www.cancer.org/Cancer/ColonandRectumCancer/MoreInformation/ColonandRectumCancerEarlyDetection/colorectal-cancer-early-detection-importance-of-crc-screening
(4) Colorectal Cancer Screening Rates (Prevention and Early Detection: Keys to Reducing Deaths). http://www.cdc.gov/cancer/colorectal/statistics/screening_rates.htm
(5) Rex DK, Cutler CS, Lemmel GT, et al. Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies. Gastroenterology 1997;112:24-8.
(6) Van Rijn JC, Reitsma JB, Dekker E, et al. Polyp Miss Rate Determined by Tandem Colonoscopy: A Systemic Review. Am J Gastroenterol 2006;101:343-50.
(7) Hewett DG, Rex DK. Miss rate of right-sided colon examination during colonoscopy defined by retroflexion: an observational study. Gastrointest Endosc 2011;74:246-52.
(8) Pickhardt PJ, Nugent PA, Mysliwiec PA, et al. Location of adenomas missed by optical colonoscopy. Annals of Internal Medicine 2004;141:352-60.
Lazar Partners Ltd
Chantal Beaudry/Martyna Gawrych
Avantis Medical Systems, Inc.
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