Non-malignant Helicobacter pylori-Associated Diseases

Area of Science:

• Gastroenterology
• Microbiology
• Public Health

Background:

• Helicobacter pylori infection is a global health concern linked to gastritis, peptic ulcers, and gastric cancer.
• While most infected individuals remain asymptomatic, a subset develops severe complications, necessitating risk stratification.
• Current diagnostic and classification systems aim to standardize assessment and guide treatment decisions worldwide.

Purpose of the Study:

• To review and discuss established systems for classifying gastritis and stratifying risk associated with H. pylori infection.
• To explore diagnostic and therapeutic approaches for various gastritis types and peptic ulcer disease.
• To examine extra-gastric manifestations and host/bacterial risk factors of H. pylori.

Main Methods:

• Review of the updated Sydney System for gastritis classification and its analogue scale.
• Discussion of risk factors like intestinal metaplasia and atrophy, and scoring systems (OLGA, OLGIM).
• Explanation of special gastritis forms, peptic ulcer disease, and extra-gastric sequelae.

Main Results:

• The updated Sydney System provides a standardized, semi-quantitative approach for gastritis classification.
• Risk assessment tools and understanding of host/bacterial factors are crucial for managing H. pylori complications.
• Extra-gastric H. pylori infections, though rare, are increasingly recognized and warrant further investigation.

Conclusions:

• Standardized classification and risk stratification are essential for managing H. pylori infection globally.
• Comprehensive understanding of H. pylori's clinical spectrum, including extra-gastric manifestations, improves patient outcomes and public health.
• Further research into risk factors and extra-gastric H. pylori infections can refine diagnostic and therapeutic strategies.