Reports of strong associations in small observational studies without appropriate adjustment for potential confounding factors were not generally confirmed by larger and better- design ed studies .
The available evidence indicates that there is no strong association between H pylori and dyspepsia , but there is insufficient evidence to confirm or refute the existence of a modest association
BACKGROUND Previous studies have yielded conflicting results and substantial uncertainty about any independent association of Helicobacter pylori infection with dyspepsia , and about any benefits of antibiotic treatments for nonulcer or uninvestigated dyspepsia .
OBJECTIVES To perform a systematic review of the literature to determine whether chronic infection with H pylori is relevant to nonulcer or uninvestigated dyspepsia .
Nitrofurans in the treatment of gastritis associated with Campylobacter pylori. The Gastrointestinal Physiology Working Group of Cayetano Heredia and The Johns Hopkins Universities.
We conducted a double-blind , placebo-controlled , r and omized treatment study in Peruvian adults with antral gastritis associated with Campylobacter pylori . Patients received either 400 mg of furazolidone ( n = 14 ) , 400 mg of nitrofurantoin ( n = 24 ) , or a placebo ( n = 31 ) for 14 days . Endoscopy was carried out at baseline , 1 day after ceasing therapy , and 6 wk after the end of treatment to verify colonization by C. pylori and determine the extent of gastric inflammation . Treatment with nitrofurantoin or furazolidone markedly reduced or , in some cases , cleared C. pylori from the antrum ( p less than 0.0005 compared with placebo ) . Resolution of acute gastric inflammation , as evidence d by decreased polymorphonuclear leukocyte infiltration and regeneration of the mucus layer , paralleled the reduction in bacterial colonization ( p less than 0.005 compared with placebo ) . A high percentage of patients experienced relapse ( recolonization by C. pylori and return to pretreatment levels of gastritis ) within 6 wk after cessation of treatment . Significant relief of dyspeptic symptoms was not evident during the study
Reports of strong associations in small observational studies without appropriate adjustment for potential confounding factors were not generally confirmed by larger and better- design ed studies .
The available evidence indicates that there is no strong association between H pylori and dyspepsia , but there is insufficient evidence to confirm or refute the existence of a modest association
BACKGROUND Previous studies have yielded conflicting results and substantial uncertainty about any independent association of Helicobacter pylori infection with dyspepsia , and about any benefits of antibiotic treatments for nonulcer or uninvestigated dyspepsia .
OBJECTIVES To perform a systematic review of the literature to determine whether chronic infection with H pylori is relevant to nonulcer or uninvestigated dyspepsia .