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Does Helicobacter pylori affect gastric microcirculation?
M Guslandi1, M Sorghi, A Tittobello
1Istituto Scientifico Ospedale S. Raffaele, Dipartimento di Scienze e Technologie Biomediche, Università di Milano, Italy.
The Italian Journal of Gastroenterology
|October 1, 1994
Summary
Chronic gastritis reduces gastric blood flow, irrespective of Helicobacter pylori infection. Eradicating H. pylori did not restore normal gastric perfusion in this study.
Area of Science:
- Gastroenterology
- Microcirculation Research
- Infectious Diseases
Background:
- Chronic gastritis often co-occurs with Helicobacter pylori infection.
- Reduced gastric blood flow is a known complication of chronic gastritis.
Purpose of the Study:
- To investigate the relationship between Helicobacter pylori infection and reduced gastric blood flow in chronic gastritis.
- To determine if H. pylori eradication therapy impacts gastric microcirculation.
Main Methods:
- Laser Doppler flowmetry used to measure mucosal blood flow in the gastric antrum during endoscopy.
- Comparison of blood flow in patients with chronic gastritis (H. pylori positive and negative) and healthy controls.
- Assessment of blood flow changes after H. pylori eradication therapy in a subset of patients.
Main Results:
- Gastric mucosal blood flow was significantly lower in patients with chronic gastritis compared to healthy controls (p < 0.01).
- No significant difference in blood flow was observed between H. pylori positive and negative gastritis groups.
- Eradication therapy in H. pylori positive patients did not lead to a significant change in gastric perfusion.
Conclusions:
- Reduced gastric mucosal blood flow in chronic gastritis is independent of H. pylori infection.
- H. pylori eradication therapy does not directly influence gastric microcirculation.
- H. pylori does not appear to have a direct impact on gastric microcirculation in chronic gastritis.