A novel extra-wide-angle–view colonoscope: a simulated pilot study using anatomic colorectal models - 13/02/13
Reprint requests: Toshio Uraoka, MD, PhD, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, JapanRésumé |
Background |
A major factor that may contribute to a higher adenoma miss rate during colonoscopy is undetected lesions located behind haustral folds, flexures, or rectal valves.
Objective |
To assess the efficacy of a prototype, novel, extra-wide-angle–view colonoscope that provides a simultaneous lateral-backward view that complements the forward view lens.
Design |
A simulated pilot study of two anatomic colorectal models, each prepared with 8 polyps positioned in obvious locations and 8 polyps placed behind folds. Thirty-two endoscopists with different levels of experience performed examinations on models in a random order by using the extra-wide-angle–view colonoscope and a standard colonoscope.
Main Outcome Measurements |
The detection rates of simulated polyps.
Results |
The mean detection rate for all simulated polyps with the extra-wide-angle–view colonoscope was significantly higher than that with the standard colonoscope (68% vs 51%; P < .0001). The detection rate for polyps behind folds was significantly higher in the extra-wide-angle–view colonoscope than in the standard colonoscope (61.7% vs 46.9%; P = .0009).
Limitations |
Not a clinical study.
Conclusion |
The novel, extra-wide-angle–view colonoscope may represent an advancement in colorectal polyp detection. The value of the colonoscope for clinical use awaits further study.
Le texte complet de cet article est disponible en PDF.Abbreviation : PDR
Plan
| DISCLOSURE: All authors disclosed no financial relationships relevant to this publication. |
Vol 77 - N° 3
P. 480-483 - mars 2013 Retour au numéro
Article précédent
- Comparison of standard forward-viewing mode versus ultrawide-viewing mode of a novel colonoscopy platform: a prospective, multicenter study in the detection of simulated polyps in an in vitro colon model (with video)
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