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13C urea breath testing to diagnose Helicobacter pylori infection in children
1Division of Gastroenterology-Nutrition, Department of Pediatrics, Ste-Justine Hospital, University of Montreal, Quebec, Canada.
Insights
The 13C urea breath test accurately detects Helicobacter pylori infection in children. Further research is needed to standardize protocols for this valuable noninvasive diagnostic tool in pediatric populations.
Area of Science:
- Gastroenterology
- Pediatric Medicine
- Infectious Diseases
Background:
- Helicobacter pylori (H pylori) infection is linked to gastritis.
- Endoscopy with biopsy is the gold standard for diagnosis.
- Noninvasive methods are needed, especially for children.
Purpose of the Study:
- To evaluate the 13C urea breath test for diagnosing H pylori infection in pediatric populations.
- To highlight its potential for epidemiological studies in children.
Main Methods:
- The 13C urea breath test is a noninvasive diagnostic tool.
- It measures 13C-labeled carbon dioxide in expired breath samples.
- Comparison with traditional methods like endoscopy and biopsy.
Main Results:
- The 13C urea breath test demonstrates high specificity and sensitivity for H pylori colonization.
- It is increasingly used in pediatric H pylori diagnosis.
- The test is suitable for epidemiological studies on infection rates and treatment efficacy.
Conclusions:
- The 13C urea breath test is a promising tool for diagnosing H pylori infection in children.
- Standardization of the testing protocol is crucial for reliable results.
- Further studies are essential to fully evaluate its impact in pediatric populations.
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.