ABSTRATBackground: The presence of intestinal metaplasia in the distal esophagus (Barrett’s esophagus) is an important precursor of adenocarcinoma. Knowledge of the risk factors and the process by which the Barrett develops is very important and Helicobacter pylori (HP) can contribute to this development. Aim: To analyze the impact of HP in the gastric mucosa with intestinal metaplasia in the distal esophagus in areas of columnar epithelialization smaller than 10 mm in length and epidemiological data on prevalence Method: A retrospective study in which were included 373 consecutive patients diagnosed with columnar epithelium in the distal esophagus was done. In all, HP was investigated by urease and histology, exclusion and inclusion factors were applied and patients were divided into two groups: the first grouping the ones without histological diagnosis of Barrett’s esophagus (235-63%) and the second with it (138-37%). Results:There was no significant difference between HP and non-HP patients in relation to the probability of having intestinal metaplasia (p=0.587). When related to the general group, there was an inverse association between the bacterium and the columnar epithelia in the distal esophagus. Age (p=0.031), gender (p=0.013) and HP (p=0.613) when related together to intestinal metaplasia showed no significant relation. In isolation, when related to age and gender, regardless of HP, results confirmed that patients in more advanced age and women present a higher incidence of intestinal metaplasia. Conclusion:There is an inverse relation between HP and the areas of columnar epithelization in the distal esophagus, regardless of the presence or absence of intestinal metaplasia. Age and gender, regardless of HP, showed higher prevalence in women and in older the number of cases with intestinal metaplasia in the distal esophagus.

Objetivo: Este trabalho tem como objetivo analisar a influência da altura das bolsas de soro no fluxo de saída, ou vazão, do fluido através de um equipo quatro vias acoplado a uma camisa e ótica artroscópica. Métodos: Foi analisado o tempo de escoamento do soro fisiológico 0,9% por um equipo quatro vias, acoplado em uma camisa e ótica artroscópica, para atingir os volumes de 2000 mL e 4000 mL. Foram realizados 20 testes experimentais, divididos em dois grupos: Grupo 1- suporte elevado a uma altura de 80 cm, Grupo 2- suporte elevado a uma altura de 150 cm. Resultados: O fluxo médio nos testes realizados com as bolsas de soro a 80 cm foi de 7,78 cm3/s no período de tempo decorrido até o escoamento de 2000 mL e 6,82 cm3/s para 4000 mL. Com a elevação das bolsas de soro até 150 cm o fluxo médio foi para 12,11 cm3/s durante o período de enchimento dos 2000 mL e 10,59 cm3/s para 4000 mL. Conclusão: O aumento da altura das bolsas de soro de 80 cm para 150 cm gerou um aumento de 60% na vazão do soro fisiológico.