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Updated: Oct 15, 2026

Detection of Helicobacter pylori Infection and Antibiotic Resistance via Stool Quantitative Polymerase Chain Reaction Analysis
Published on: May 16, 2025
Study of diagnostic modalities and pathology of Helicobacter pylori infection in children
D Bansal1, A K Patwari, K B Logani
1Department of Pediatrics, Lady Hardinge Medical College, New Delhi.
Insights
Diagnosing Helicobacter pylori (Hp) in children can be effectively done using serology and rapid urease tests (RUT), which correlate with gastritis and duodenitis. Older children are at higher risk for Hp infection.
Area of Science:
- Pediatric Gastroenterology
- Infectious Diseases
- Diagnostic Medicine
Background:
- Helicobacter pylori (Hp) infection is a common cause of gastroduodenal disorders in children.
- Accurate diagnosis of Hp infection is crucial for effective management and to understand associated pathologies.
Purpose of the Study:
- To evaluate the efficacy of various diagnostic tests for Helicobacter pylori in pediatric patients.
- To investigate the endoscopic and histological changes in children with Hp-associated gastroduodenal disorders.
Main Methods:
- Children under 12 with gastroduodenal issues underwent upper gastrointestinal endoscopy.
- Biopsies were analyzed histopathologically, alongside rapid urease tests (RUT) and serological IgG antibody testing for Hp.
Main Results:
- The study included 47 children; 19.1% tested positive for Hp by both serology and RUT, while 14.9% were positive by histology.
- A significant correlation was found between Hp infection and chronic antral gastritis (p=0.002) and chronic duodenitis (p=0.006).
- Children aged 10 years or older had a significantly higher risk of Hp infection.
Conclusions:
- Serology and RUT are reliable diagnostic methods for Hp infection in children, comparable to histology.
- Hp colonization is significantly associated with chronic antral gastritis and chronic duodenitis in the pediatric population.
Abstract:
To evaluate various diagnostic tests for Helicobacter pylori (Hp) in children, and to study the spectrum of endoscopic and histological changes in the stomach and duodenum of children with gastroduodenal disorders, associated with Hp infection Children below 12 years of age with various gastroduodenal disorders requiring upper gastrointestinal endoscopy were studied. Endoscopic biopsy specimens were collected from duodenum and antrum. Apart from histopathological examination of biopsy material, rapid urease test (RUT) of the antral biopsy specimen and blood examination to estimate specific IgG antibodies to Hp by Indirect Solid Phase Enzyme Immunoassay was performed. Forty seven children were included. Nine (19.1%) of them were positive both by serology and RUT. Seven (14.9%) were positive by histology. A significant correlation of Hp was noticed with chronic antral gastritis (p = 0.002) and chronic duodenitis (p = 0.006). Age equal to or more than 10 years was found to be significant risk factor for acquiring Hp infection. Prevalence of Hp in children with gastroduodenal complaints was found to be 19%. Both RUT and serology were found to be reliable diagnostic tests for Hp as compared with histology. Antral gastritis and chronic duodenitis had a significant correlation with Hp colonization.
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