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.

Related Concept Videos

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies01:28

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy01:16

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy

Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Peptic Ulcer01:27

Peptic Ulcer

Peptic ulcers are erosive lesions of the gastric or duodenal lining, most commonly caused by Helicobacter pylori infection. This Gram-negative, helical bacterium has adapted to survive the stomach’s acidic environment by producing urease, which converts urea into ammonia and carbon dioxide. The ammonia neutralizes gastric acid in the bacterium’s immediate environment, allowing colonization of the gastric mucosa. H. pylori attaches to mucus-secreting epithelial cells, penetrates the mucus...
Peptic Ulcer Disease II: Pathophysiology01:24

Peptic Ulcer Disease II: Pathophysiology

Peptic ulcer disease develops when protective mechanisms of the gastrointestinal mucosa are overwhelmed by harmful factors, leading to localized erosions in the stomach or proximal duodenum. The main causes are Helicobacter pylori infection and chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs).Helicobacter pylori–Induced InjuryBacterial Adaptation and Colonization:H. pylori is a spiral, Gram-negative bacterium adapted to the acidic stomach. and transmitted through oral-oral or...
Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

Peptic Ulcer Disease (PUD) is characterized by the development of ulcers in the stomach or duodenal mucosa. Its pathophysiology is complex, involving a balance between damaging and protective elements.
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.