helicobacter%20pylori%20infection
HELICOBACTER PYLORI INFECTION
Helicobacter pylori is a spiral-shaped gram-negative bacterium involved in the development of gastritis, duodenal and gastric ulcers, and gastric cancer.
Infection is strongly associated with the development of gastric epithelial and lymphoid malignancies.
Acute infection is mostly asymptomatic and is acquired through human-to-human contact via gastro-oral and fecal-oral routes.
Adaptability in gastric conditions and production of urease allow it to colonize the stomach.

Definition

Dyspepsia

  • Presence of ≥1 of the following: Bothersome postprandial fullness, early satiation, epigastric pain and/or epigastric burning
  • No evidence of structural disease (including at upper endoscopy) that is likely to explain the symptoms (functional or non-ulcer dyspepsia)
  • Symptoms were present within the last 3 months with onset ≥6 months prior to diagnosis (Rome III criteria)
  • Though the relationship between functional dyspepsia and Helicobacter pylori (H pylori) is unclear, improvement of functional dyspepsia symptoms was seen with elimination of H pylori infection

Etiology

Helicobacter pylori

  • A spiral-shaped Gram-negative bacterium involved in the development of gastritis, duodenal and gastric ulcers, and gastric cancer
    • H pylori gastritis may decrease or increase acid secretion and cause dyspeptic symptoms  
    • Up to 90-95% of patients with nonsteroidal anti-inflammatory drug (NSAID)-related duodenal ulcers and 80% of patients with non-NSAID-related gastric ulcers are infected
    • Infection is strongly associated with the development of gastric epithelial and lymphoid malignancies
  • Acute infection is mostly asymptomatic and is acquired through human-to-human contact via gastro-oral and fecal-oral routes
  • Adaptability in gastric conditions and production of urease allow it to colonize the stomach
Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS Gastroenterology - Malaysia digital copy today!
Sign In To Download
Editor's Recommendations
Most Read Articles
15 Jul 2019
Fluticasone, swallowed from a multidose inhaler, and oral viscous budesonide slurry have comparable efficacies as initial treatment for eosinophilic oesophagitis, a recent study has found.
31 May 2019
Co-therapy with proton pump inhibitors (PPIs) in patients receiving low-dose anticoagulation and/or aspirin for stable cardiovascular disease confers no benefit for upper gastrointestinal events but may reduce bleeding due to gastroduodenal lesions, a study has shown.
07 Aug 2019
Proton pump inhibitor therapy, particularly with pantoprazole, does not reduce upper gastrointestinal bleeding events in patients taking low-dose anticoagulation/aspirin treatment, reports a recent study.
18 Jul 2019
Colonoscopy in patients under propofol sedation may be enhanced with the water exchange (WE) method by significantly improving colon cleanliness and overall adenoma detection rate (ADR), suggests a recent study.