English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Background and aims  The Workgroup Serrated Polyps and Polyposis (WASP) developed criteria for optical diagnosis of colorectal polyps. The aims of this study were: (1) to improve optical diagnosis of diminutive colorectal polyps, especially SSLs, after training endoscopists in applying WASP criteria on videos of polyps obtained with iScan and (2) to evaluate if the WASP criteria are still useful when polyps are pathologically revised according to the World Health Organization (WHO) 2019 criteria.    Methods  Twenty‐one endoscopists participated in a training session and predicted polyp histology on 30 videos of diminutive polyps, before and after training (T 0  and T 1 ). After three months, they scored another 30 videos (T 2 ). Primary outcome was overall diagnostic accuracy (DA) at T 0 , T 1  and T 2 . Polyps were histopathologically classified according to the WHO 2010 and 2019 criteria.    Results  Overall DA (both diminutive adenomas and SSLs) significantly improved from 0.58 (95% CI 0.55–0.62) at T 0  to 0.63 (95% CI 0.60–0.66,  p  = 0.004) at T 1 . For SSLs, DA did not change with 0.51 (95% CI 0.46–0.56) at T 0  and 0.55 (95% CI 0.49–0.60,  p  = 0.119) at T 1 . After three months, overall DA was 0.58 (95% CI 0.54–0.62,  p  = 0.787, relative to T 0 ) while DA for SSLs was 0.48 (95% CI 0.42–0.55,  p  = 0.520) at T 2 . After pathological revision according to the WHO 2019 criteria, DA of all polyps significantly changed at all time points.    Conclusion  A training session in applying WASP criteria on endoscopic videos made with iScan did not improve endoscopists' long‐term ability to optically diagnose diminutive polyps. The change of DA following polyp revision according to the revised WHO 2019 criteria suggests that the WASP classification may need revision.

united european gastroenterology journal

The Workgroup Serrated Polyps and Polyposis (WASP) classification for optical diagnosis of colorectal diminutive polyps with iScan and the impact of the revised World Health Organization (WHO) criteria