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논문 기본 정보

자료유형
학술저널
저자정보
Justyna Wasielica-Berger (Departments of General Pathomorphologyand Gastroenterology and Internal Medicine Medical University of Bialystok Bialystok Poland) Pawel Rogalski (Departments of Gastroenterology and Internal Medicine Medical University of Bialystok Bialystok Poland) Anna Pryczynicz (Departments of General Pathomorphology and Gastroenterology and Internal Medicine Medical University of Bialystok Bialystok Poland) Agnieszka Swidnicka-Siergiejko (Departments of Gastroenterology and Internal Medicine Medical University of Bialystok Bialystok Poland) Andrzej Dabrowsk (Departments of Gastroenterology and Internal Medicine Medical University of Bialystok Bialystok Poland)
저널정보
대한소화기내시경학회 Clinical Endoscopy Clinical Endoscopy 제56권 제2호
발행연도
2023.3
수록면
203 - 213 (11page)
DOI
10.5946/ce.2022.087

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Background/Aims: Intestinal metaplasia (IM) of the stomach is a precancerous condition that is often not visible during conventional endoscopy. Hence, we evaluated the utility of magnification endoscopy and methylene blue (MB) chromoendoscopy to detect IM. Methods: We estimated the percentage of gastric mucosa surface staining with MB, mucosal pit pattern, and vessel visibility and correlated it with the presence of IM and the percentage of metaplastic cells in histology, similar to the Operative Link on Gastric Intestinal Metaplasia (OLGIM) stage. Results: IM was found in 25 of 33 (75.8%) patients and in 61 of 135 biopsies (45.2%). IM correlated with positive MB staining (p<0.001) and other than dot pit patterns (p=0.015). MB staining indicated IM with better accuracy than the pit pattern or vessel evaluation (71.7% vs. 60.5% and 49.6%, respectively). At a cut-off point of 16.5% for the MB-stained gastric surface, the sensitivity, specificity, and accuracy of chromoendoscopy in the detection of advanced OLGIM stages were 88.9%, 91.7%, and 90.9%, respectively. The percentage of metaplastic cells detected on histology was the strongest predictor of positive MB staining. Conclusions: MB chromoendoscopy can serve as a screening method for detecting advanced OLGIM stages. MB mainly stains IM areas with a high concentration of metaplastic cells.

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