An educational intervention to improve the endoscopist’s ability to correctly diagnose small gastric lesions using magnifying endoscopy with narrow-band imaging

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Ελληνική Γαστροεντερολογική Εταιρία
Αποθετήριο :
Annals of Gastroenterology
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Σημασιολογικός εμπλουτισμός/ομογενοποίηση από το EKT

2014 (EL)
An educational intervention to improve the endoscopist’s ability to correctly diagnose small gastric lesions using magnifying endoscopy with narrow-band imaging (EN)

Nojima, Masanori; Sapporo Medical University
Mabe, Katsuhiro; Hokkaido University Hospital
Yao, Kenshi; Fukuoka University Chikushi Hospital
Tanuma, Tokuma; Teine Keijinkai Hospital
Kato, Mototsugu; Hokkaido University Hospital

No (EN)

Background Magnifying endoscopy with narrow-band imaging (ME-NBI) and a simple and systematic classification system based on microvascular and microsurface patterns, the ”VS” classification system (VSCS), have been shown to be useful for the diagnosis of early gastric cancer. The aim of this study was to clarify whether an educational lecture about the VSCS improves performance with ME-NBI.Methods Sixty-four gastrointestinal endoscopists took the 1st exam before receiving the lecture about the VSCS, the 2nd exam immediately after the lecture, and the 3rd exam 2 months after the lecture. We compared the VSCS-based diagnostic accuracy among the participants before and after the lecture.Results The proportion of correct diagnoses was significantly higher, at 70.8% in the 2nd exam than in the 1st exam, at 53.1% (P<0.001). The correct diagnosis rate in the 3rd exam was significantly lower than that in the 2nd exam (60.9% vs. 70.8%; P<0.001) but was still higher than that in the 1st exam (60.9% vs. 53.1%; P<0.001). The difference in proportion of correct diagnosis between the 2nd and the 3rd exams was smaller among routine ME-NBI practitioners (n=6; 79.2% and 76.1%, respectively), compared to that among non-routine practitioners (n=34; 71.6% and 59.8%, respectively) or non-practitioners (n=24; 67.5% and 58.8%, respectively).Conclusion This study revealed that an educational intervention increased correct diagnosis rate of small gastric lesions using the VSCS, diagnosis criteria based on ME-NBI and also showed that the routine use of the modality and the diagnosis criteria was necessary to maintain diagnostic skills.Keywords Magnifying endoscopy, narrow-band imaging, gastric cancer, educational intervention, diagnostic performanceAnn Gastroenterol 2014; 27 (2): 149-155 (EN)

Ελληνική Γαστροεντερολογική Εταιρία (EL)
Hellenic Gastroenterologiki Company (EN)

2014-03-27


Annals of Gastroenterology (EN)

Annals of Gastroenterology; Volume 27, No 2 (2014); 149 (EN)



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