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Updated: Jan 28, 2026

Detection of Helicobacter pylori Infection and Antibiotic Resistance via Stool Quantitative Polymerase Chain Reaction Analysis
Published on: May 16, 2025
Is Helicobacter pylori infection a risk factor for childhood periodic syndromes?
A Erjaee1, M Haghighat2, M Ataollahi3
1Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Insights
Helicobacter pylori (H. pylori) infection was evaluated in patients with cyclic vomiting syndrome and abdominal migraine. The study found no significant difference in H. pylori infection rates between patients and healthy controls, suggesting it is not an etiological factor.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Pediatrics
Background:
- Helicobacter pylori (H. pylori) infection is implicated in various extra-digestive diseases.
- Cyclic Vomiting Syndrome (CVS) and abdominal migraine (AM) are complex gastrointestinal disorders.
- The potential role of H. pylori in CVS and AM etiology requires investigation.
Purpose of the Study:
- To evaluate the incidence of H. pylori infection in patients diagnosed with CVS or AM.
- To determine if H. pylori infection plays a role in the etiology of these conditions.
Main Methods:
- A case-control study involving 120 patients with CVS or AM.
- Stool samples were collected and tested for H. pylori stool antigen using the H. pylori Ag EIA test kit.
- Results were compared to a control group of healthy children.
Main Results:
- The study included 120 patients (mean age 7.1 ± 3.4 years; male-to-female ratio 1.6).
- H. pylori stool antigen was positive in 5.8% of patients with CVS/AM and 13% of controls.
- This difference in infection rates was statistically insignificant.
Conclusions:
- The findings do not support H. pylori infection as an etiological factor in Cyclic Vomiting Syndrome or Abdominal Migraine.
- Further research may be needed to explore other potential causes of these conditions.
Background And Objectives:
Helicobacter pylori (H. pylori) infection has been assumed to have roles in various extra-digestive diseases. The current study was designed to evaluate the incidence of H. pylori infection in patients with cyclic vomiting syndrome and its possible role in the etiology of this disease.
Design And Setting:
In this case-control study, 120 cases with diagnoses of cyclic vomiting or abdominal migraine who were registered at the Gastroenterology Clinic at Shiraz University of Medical Sciences from 2010 to 2013 were enrolled.
Materials And Methods:
Primarily information regarding the patients' diseases were collected with a data gathering sheet, and fresh morning stool samples were collected from the patients and examined for H. pylori stool antigen with the H. pylori Ag EIA test kit. The results were compared with those of healthy children from the control group.
Results:
A total of 120 patients with cyclic vomiting (47.5%) and abdominal migraine (52.5%) with a mean age of 7.1 ± 3.4 (range 2-16 years) and a male-to-female ratio of 1.6 were included. The HPs Ag tests were positive in only 7 (5.8%) patients in our case group, and the HPs Ag tests were positive in 13 (13%) of the children in the control group; this difference was statistically insignificant.
Conclusion:
Our study did not support H. pylori infection as an etiological factor in CV or AM.
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