[Diagnosis of H. pylori infection in children]

Area of Science:

• Pediatric Gastroenterology
• Infectious Diseases
• Diagnostic Medicine

Background:

• Helicobacter pylori (H. pylori) infection is a common cause of gastrointestinal issues in children.
• Accurate diagnosis is crucial for effective management and preventing complications.
• Both non-invasive and invasive diagnostic methods are available for H. pylori detection.

Purpose of the Study:

• To review and compare the diagnostic strategies for H. pylori infection in pediatric patients.
• To evaluate the efficacy and applicability of various non-invasive and invasive tests.
• To provide guidance on selecting appropriate diagnostic methods based on clinical presentation.

Main Methods:

• Review of non-invasive diagnostic tests: urea breath test, stool antigen tests, serologic assays.
• Evaluation of invasive diagnostic tests: upper gastrointestinal endoscopy with gastric biopsy, histopathology, and culture.
• Assessment of test sensitivity, specificity, and clinical utility in children.

Main Results:

• Urea breath test and stool antigen tests demonstrate adequate sensitivity and specificity for detecting active H. pylori infection in children.
• These non-invasive tests are recommended for monitoring infection before and after eradication therapy.
• Upper gastrointestinal endoscopy with gastric biopsy remains the preferred diagnostic strategy for symptomatic children, allowing assessment of mucosal injury.

Conclusions:

• Non-invasive tests are valuable tools for diagnosing H. pylori in pediatric populations.
• Endoscopic biopsy provides comprehensive diagnostic information, including disease severity, for symptomatic children.
• The choice of diagnostic method should be tailored to the individual child's clinical status.