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Updated: Aug 9, 2026

Quantitative Polymerase Chain Reaction (qPCR)-Based Rapid Diagnosis of Helicobacter pylori Infection and Antibiotic Resistance
Published on: July 28, 2023
Helicobacter pylori infection in children in Saudi Arabia
A M Abdullah1, M O Gad el Rab, I al Ayed
1Department of Paediatrics, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.
Insights
Serology is an effective diagnostic tool for identifying Helicobacter pylori (H. pylori) infections in children. This study in Saudi Arabia found antibody tests reliable for diagnosing H. pylori in pediatric patients.
Area of Science:
- Pediatric Gastroenterology
- Infectious Diseases
- Diagnostic Immunology
Background:
- Helicobacter pylori (H. pylori) infection is a significant cause of pediatric gastrointestinal disease.
- Accurate and accessible diagnostic methods are crucial for timely H. pylori treatment in children.
Purpose of the Study:
- To evaluate the diagnostic utility of serological tests for H. pylori infection in a pediatric cohort.
- To correlate serological findings with microbiological and histopathological results.
Main Methods:
- A cohort of 20 children with suspected H. pylori infection was studied.
- H. pylori IgG and IgA antibody levels were measured via serology.
- Gastric and duodenal biopsies were analyzed using culture and histopathology.
Main Results:
- Mean H. pylori IgG and IgA antibody levels were significantly elevated.
- H. pylori gastritis was confirmed histopathologically in 11 children.
- Antral biopsy cultures were positive in 5 children, with one showing H. pylori-like organisms.
Conclusions:
- Serological testing demonstrates high diagnostic accuracy for H. pylori infection in children.
- Antibody detection is a valuable non-invasive method for diagnosing H. pylori in this population.
- The findings support the use of serology as a primary diagnostic approach in Saudi Arabia.
Abstract:
20 children with suspected Helicobacter pylori (H. pylori) infection are presented. The mean age of the children was 9.4 years (range 4-13 years). The mean H. pylori IgG and IgA antibodies were 677 units and 760.7 units respectively. Antral biopsy cultures were positive in five children. Histopathology of the gastric antral and duodenal biopsies showed H. pylori gastritis in 11 children, duodenitis and gastritis in five, normal histology in three and one child had normal histology with H. pylori like organism on the surface of the antral mucosa. From this study, we conclude that serology is a good diagnostic test for H. pylori infection in Saudi Arabia.
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