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2015, Number 5

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Rev Med Inst Mex Seguro Soc 2015; 53 (5)

Atrophy in the mucosa neighboring an intestinaltype gastric adenocarcinoma by comparing the Sydney vs. OLGA systems

Ramírez-Mendoza P, Hernández-Briseño L, Casarrubias-Ramírez M, Alvarado-Cabrero I, Ángeles-Garay U

Language: Spanish
References: 41
Page: 584-590
PDF size: 87.55 Kb.


ABSTRACT

Background: Gastric carcinoma causes about 700 000 deaths worldwide per year. Is feasible detect it in earlier stages. The aim of this article is to assess the atrophy in the mucosa neighboring an intestinal-type gastric adenocarcinoma by comparing the Sydney vs. OLGA systems.
Methods: Twenty-eight individuals with intestinal-type gastric adenocarcinoma (Lauren) were compared with 32 non-neoplastic cases. Both groups had undergone total gastrectomy. Two pathologists made a consensus-based assessment of the atrophy in non-neoplastic corpus and antral epithelium using the Sydney and OLGA Systems. The mean, median, and distribution of the frequencies were obtained using the measuring and distribution scales of the study variables. The sensitivity, specifi city, and predictive values, both positive and negative, for gastric cancer were calculated through the dichotomy of advanced atrophy-positive and advanced atrophy-negative scales.
Results: Twenty-four of the 28 cases with intestinal-type gastric carcinoma showed an advanced atrophy with the OLGA system, with a sensitivity and specifi city of 77 and 85 %, respectively. Conversely, 4 of the 28 individuals showed an advanced atrophy with the Sydney system, with a sensitivity and specifi city of 14 and 100 %, respectively.
Conclusions: The OLGA system has a high sensitivity and specifi city (77 y 85 % respectively) for the recognition of preneoplastic changes in the mucosa neighboring a gastric carcinoma.


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