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Helicobacter pylori infection and nonmalignant diseases.

Helicobacter 2017 September
A substantial decrease in Helicobacter pylori-associated peptic ulcer disease has been observed during the last decades. Drug-related ulcers as well as idiopathic ulcers are becoming predominant and are more refractory to treatment; however, H. pylori infection still plays an important role in ulcer bleeding and recurrence after therapy. The effect of H. pylori eradication upon functional dyspepsia symptoms has been reviewed in this article and generally confirms the results of previous meta-analyses. Additional evidence suggests a lack of impact upon the quality of life, in spite of improvement in symptoms. The association of H. pylori with gastroesophageal reflux disease and Barrett's esophagus remains controversial with a majority of published studies showing a negative association. Furthermore, a strong inverse relationship between the presence of H. pylori and the esophageal eosinophilia was also reported. Several studies and a review addressed the role of H. pylori in autoimmune gastritis and pernicious anemia. The association of the above still remains controversial. Finally, the necessity of routine endoscopy and H. pylori eradication before bariatric surgery is discussed. Several studies suggest the rationale of preoperative upper endoscopy and H. pylori eradication prior to surgery. However, the prevalence of H. pylori infection prior to surgery in these studies generally reflects the overall prevalence of the infection in the particular geographic area. In addition, results on the role of H. pylori in developing postoperative complications remain controversial.

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