Abstract
The casual relationship between Helicobacter pylori colonization of the gastric mucosa and gastritis has been proven. Endoscopy and subsequent histological examination of antral biopsies have been regarded as the gold standard for diagnosing H pylori gastritis. The C urea breath test is a noninvasive test with a high specificity and sensitivity for H pylori colonization. Increasingly, it is becoming an important tool for use in diagnosing H pylori infection in pediatric populations. This test is particularly well suited for epidemiological studies evaluating reinfection rates, spontaneous clearance of infection and eradication rates after therapy. However, few groups have validated the test in the pediatric age group. The testing protocol has not yet been standardized. Variables include fasting state, dose of urea labelled with 13C, delta cutoff level of 13C carbon dioxide, choice of test meal and timing of collection of expired breath samples. Further studies are urgently needed to evaluate critically the impact of H pylori infection in the children. The 13C urea breath test should prove very useful in such prospective studies.
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