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  • Title: Review article: Helicobacter pylori infection and gastric outlet obstruction - prevalence of the infection and role of antimicrobial treatment.
    Author: Gisbert JP, Pajares JM.
    Journal: Aliment Pharmacol Ther; 2002 Jul; 16(7):1203-8. PubMed ID: 12144568.
    Abstract:
    The prevalence of Helicobacter pylori infection in peptic ulcer disease complicated by gastric outlet obstruction seems to be, overall, lower than that reported in non-complicated ulcer disease, with a mean value of 69%. However, H. pylori infection rates in various studies range from 33% to 91%, suggesting that differences in variables, such as the number and type of diagnostic methods used or the frequency of non-steroidal anti-inflammatory drug intake, may be responsible for the low prevalence reported in some studies. The resolution of gastric outlet obstruction after the eradication of H. pylori has been demonstrated by several studies. It seems that the beneficial effect of H. pylori eradication on gastric outlet obstruction is observed early, just a few weeks after the administration of antimicrobial treatment. Furthermore, this favourable effect seems to remain during long-term follow-up. Nevertheless, gastric outlet obstruction does not always resolve after H. pylori eradication treatment and an explanation for the failures is not completely clear, non-steroidal anti-inflammatory drug intake perhaps playing a major role in these cases. Treatment should start pharmacologically with the eradication of H. pylori even when stenosis is considered to be fibrotic, or when there is some gastric stasis. In summary, H. pylori eradication therapy should be considered as the first step in the treatment of duodenal or pyloric H. pylori-positive stenosis, whereas dilation or surgery should be reserved for patients who do not respond to such medical therapy.
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