Infection by helicobacter pylori associated with gastric malignant in Guerrero state, Mexico. 2001-2011

Introduction:The association between Helicobacter pylori and the gastric malignant has been extensively demonstrated, in relation to this, the WHO determined that the microorganism is a carcinogen agent proved from group I. In Mexico the prevalence of infection by this bacterium it is high Objective: Evaluation of the relationship between the socio-demographic, clinicalendoscopic and histopathological variables with the different kinds of gastric malignant in Helicobacter pylori positive and negative patients. Patients and methods: An investigation was carried out to determine the kind of association in a population of the south region of Mexico. The type of research is retrospective, descriptive and inferential, 214 cases with gastric adenocarcinoma and lymphoma associated to the mucosal (MALT) were studied, they were diagnosed from 2001 to 2011, of which 99 had Helicobacter pylori. Statistical techniques to evaluate the possible relationship between variables were used. Procedures: Arithmetic mean and standard deviation, percentages and its errors. Techniques: Chi square test for contingency tables, correlation of Spearman s range, population parameter estimation, related percentage comparison. Results: It was found meaningful associations between the histologic diagnostic and ages, blood serotype, antecedent of relatives with cancer and the symptomatology (dyspepsia and alarm signs), and very meaningful association between the presence of Helicobacter pylori with alive, deceased and the histologic diagnostic. It was determined that diffuse adenocarcinoma appears between a 48,8% and 62,4% with a probability of the 95% in the population with this characteristics, likewise, the percentage of neoplasm/toumor within endoscopic Revista Habanera de Ciencias Medicas 2012:11(2)225-236 http://scielo.sld.cu 227 diagnosis ranges between 68,4% and 80,6% with a 95% probability. The interval of confidence with the 99% of certainty for the age in which these illnesses appear it moves between 56 and 62 years. Conclusions: It has been proved that the socio-demographic, clinical-endoscopic and histologic characteristics of these patients with adenocarcinoma and lymphoma MALT have an influence in the final diagnostic, evolution and prognostic. The presence of Helicobacter pylori in these patients was determining for their survival.