'Idiopathic' (H. pylori-negative, NSAIDs-negative) duodenal/gastric ulcers are present in symptomatic children. Clinical or endoscopic characteristics are insufficient markers to identify those 'idiopathic' ulcers. Investigating the 'risk factors' for those ulcers will be helpful in reducing the morbidity in these children.

HpSA, a polyclonal antibody test, had a low sensitivity for infection in children in the United States and at present cannot replace histologic findings as the gold standard for the diagnosis of Hp infection in the pediatric population.

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The incidence of H. pylori infection in symptomatic children in our clinic is decreasing. A national multicenter study will be needed to assess whether this drop is a local phenomenon or a national trend.