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  • Title: Is GastroPanel serum assay useful in the diagnosis of Helicobacter pylori infection and associated gastritis in children?
    Author: Koivusalo AI, Pakarinen MP, Kolho KL.
    Journal: Diagn Microbiol Infect Dis; 2007 Jan; 57(1):35-8. PubMed ID: 16949782.
    Abstract:
    GastroPanel (Biohit, Helsinki, Finland) is a serum test kit that measures Helicobacter pylori antibodies (HPABs) and pepsinogens I and II and gastrin 17, which reflect the degree of atrophic gastritis. We assessed whether GastroPanel can replace endoscopic biopsies in the diagnostics of H. pylori in children and whether the H. pylori-infected children show markers for atrophic gastritis. Eighty children (median age, 6.8 years; range, 0.6-18.7 years) underwent gastroscopy for H. pylori-related abdominal complaints (n = 40), surveillance after surgery for gastrointestinal tract malformations (n = 20), gastroesophageal reflux (GER) (n = 10), and miscellaneous diseases (n = 10). Gastric biopsies and a serum sample were obtained from all 80 children. HPAB levels of 38 and 15 IU were tested as cutoff values for H. pylori gastritis. The biopsies showed H. pylori-positive gastritis in 30 children, 9 had gastritis not associated with H. pylori, and 41 had normal biopsies. Atrophic gastritis was not found. The sensitivity and specificity of HPAB for H. pylori were 47% and 98% (cutoff, 38 IU), and 73% and 85% (cutoff, 15 IU), respectively. The assays of pepsinogens and gastrin did not improve sensitivity. None of the markers of pepsinogen (PG) I, PGII, and gastrin 17 (G17) indicated atrophic gastritis. GastroPanel is too insensitive for H. pylori screening and does not replace endoscopy. Markers indicative of atrophic gastritis were negative in all children with H. pylori gastritis.
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