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  • Title: Extradigestive manifestation of Helicobacter pylori infection in children and adolescents.
    Author: Sherman PM, Lin FY.
    Journal: Can J Gastroenterol; 2005 Jul; 19(7):421-4. PubMed ID: 16010304.
    Abstract:
    Helicobacter pylori infection fulfills each of Koch's postulates as a human pathogen causing chronic active gastritis. Disease consequences that develop in a subset of infected subjects include peptic ulcerations, gastric adenocarcinoma and mucosa-associated lymphoid tissue lymphoma. More recently, multiple publications have advocated a role for H. pylori infection in causing a variety of extraintestinal manifestations. Many of these reports suffer from being case reports or case series without adequate controls. As a result, purported manifestations may simply be coincidental in nature. On the other hand, increasing evidence supports H. pylori infection as a cause of sideropenic (refractory iron deficiency) anemia. Moderate evidence supports H. pylori gastric infection as a cause of some cases of immune thrombocytopenic purpura due to molecular mimicry. Guidelines should be adjusted in accordance with advancing knowledge in the field.
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