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Updated: Aug 20, 2026

Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
Published on: March 7, 2025
Helicobacter pylori infection is not associated with specific symptoms in nonulcer-dyspeptic children
Nicolas Kalach1, Karine Mention, Dominique Guimber
1Department of Pediatrics, Clinique de Pédiatrie Saint Antoine, Hôpital Saint Vincent de Paul, Catholic University, Boulevard Belfort, BP 387, 59020 Lille, France. kalach.nicolas@ghicl.net
Insights
Helicobacter pylori infection in children with nonulcer dyspepsia shows no distinct symptoms. This study found no specific characteristics differentiating infected from noninfected children, including epigastric pain during meals.
Area of Science:
- Pediatric Gastroenterology
- Infectious Diseases
- Clinical Symptomatology
Background:
- Nonulcer dyspepsia (NUD) is a common condition in children.
- Helicobacter pylori (H. pylori) is a known pathogen affecting the upper gastrointestinal tract.
- Identifying specific symptoms of H. pylori infection in pediatric NUD is crucial for diagnosis and management.
Purpose of the Study:
- To evaluate and compare the clinical symptoms of children diagnosed with nonulcer dyspepsia.
- To determine if Helicobacter pylori infection presents with unique symptom profiles in this pediatric cohort.
Main Methods:
- A prospective, double-blind study involving 100 children (≥6 years) with NUD undergoing upper gastrointestinal endoscopy.
- Standardized questionnaires administered by a pediatric gastroenterologist to characterize epigastric pain and associated symptoms.
- H. pylori infection confirmed via gastric mucosa culture and histology.
Main Results:
- Of 100 children, 26 were H. pylori infected and 74 were not; no significant age differences were observed.
- No significant differences in overall symptom characteristics were found between infected and noninfected groups.
- Epigastric pain occurring during meals was reported more frequently in noninfected children (25.6%) compared to infected children (3.8%).
Conclusions:
- Helicobacter pylori infection in children with nonulcer dyspepsia does not exhibit specific distinguishing symptoms.
- The findings suggest that symptom-based diagnosis of H. pylori in pediatric NUD is unreliable.
- Further research may be needed to identify subtle indicators or alternative diagnostic approaches.
Objectives:
To assess symptoms associated with Helicobacter pylori infection in children presenting with nonulcer dyspepsia (NUD).
Study Design:
A prospective double-blind study was conducted between March 2001 and April 2002 in children at least 6 years old with NUD who had been referred for upper gastrointestinal endoscopy for epigastric pain. A standardized questionnaire was administered blindly by a pediatric gastroenterologist. This questionnaire characterized epigastric pain and associated factors. Infection was confirmed by positive culture and histologic examination of the gastric mucosa.
Results:
From 100 children enrolled, 26 proved infected (12 female, 14 male; mean age: 11.4 +/- 2.6 years), and 74 were noninfected (44 female, 30 male; mean age: 10.4 +/- 3.1 years). There were no differences in age or symptom characteristics between groups except for epigastric pain during meals that was more frequent in noninfected than in infected children (25.6% vs 3.8%).
Conclusion:
There were no specific characteristics of symptoms in nonulcer-dyspeptic H pylori-infected children as compared with noninfected children.
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