Clinical Endoscopy

  • 제55권5호
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  • Pages.645-654
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  • 2022
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  • 2234-2400(pISSN)
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  • 2234-2443(eISSN)
대한소화기내시경학회 (The Korean Society of Gastrointestinal Endoscopy)
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Optical diagnosis by near-focus versus normal-focus narrow band imaging colonoscopy in colorectal polyps based on combined NICE and WASP classification: a randomized controlled trial

  • Nisa Netinatsunton (NKC Institute of Gastroenterology and Hepatology, Faculty of Medicine, Prince of Songkla University) ;
  • Natcha Cheewasereechon (NKC Institute of Gastroenterology and Hepatology, Faculty of Medicine, Prince of Songkla University) ;
  • Tanawat Pattarapuntakul (NKC Institute of Gastroenterology and Hepatology, Faculty of Medicine, Prince of Songkla University) ;
  • Jaksin Sottisuporn (NKC Institute of Gastroenterology and Hepatology, Faculty of Medicine, Prince of Songkla University) ;
  • Kanet Kanjanapradit (Division of Pathology, Faculty of Medicine, Prince of Songkla University) ;
  • Bancha Ovartlarnporn (NKC Institute of Gastroenterology and Hepatology, Faculty of Medicine, Prince of Songkla University)
  • 투고 : 2022.01.07
  • 심사 : 2022.05.11
  • 발행 : 2022.09.30
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초록

Background/Aims: Narrow Band Imaging (NBI) International Colorectal Endoscopic (NICE) and Workgroup Serrated Polyps and Polyposis (WASP) classifications were developed for optical diagnosis of neoplastic and sessile serrated polyps, respectively. Near-focus NBI with NICE combined with WASP criteria for optical diagnosis of colonic polyps has not yet been evaluated. We aimed to compare the accuracy of near-focus NBI (group A) with normal-focus NBI (group B) in real-time optical diagnosis of colorectal polyps using combined NICE and WASP criteria. Methods: Among 362 patients, 118 with 227 polyps were recruited. Groups A and B included 62 patients with 130 polyps (three lost polyps) and 56 patients with 106 polyps (six lost polyps), respectively. Optical diagnoses were compared with pathological reports. Results: The accuracy of optical diagnosis of neoplastic polyps in groups A and B was not significantly different (76% vs. 71%, p=0.52). WASP criteria provided all false positive diagnoses of sessile polyps as serrated polyps in 31 (16.2%) patients. Conclusions: Near-focus NBI was not superior to normal-focus NBI in optical diagnostics of neoplastic polyps using NICE criteria. In our study, WASP classification yielded all false positives in the diagnosis of sessile serrated adenomas/polyps. Routine real-life optical diagnosis of polyps is still unadvisable.

키워드

과제정보

The authors would like to thank Miss Nannapat Pruphetkaew in the Department of Epidemiology for statistical analysis. The manuscript titled "Near-focus versus normal-focus narrow band imaging colonoscopy in diagnosis of colorectal polyps based on combined NICE and WASP classification in routine colonoscopy: a randomized controlled trial" was preprinted in www.researchsquare.com (rs-809507).

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