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Helicobacter pylori is an aetiological factor for ischaemic heart disease: the case against
G Cammarota1, V Pasceri, A Gasbarrini
1Department of Internal Medicine and Gastroenterology, Catholic University of Rome, Italy.
Insights
Helicobacter pylori infection is being studied for its link to heart disease. Current evidence is inconclusive, with no randomized trials showing that eradicating H. pylori reduces cardiac events.
Area of Science:
- Cardiology
- Infectious Diseases
- Microbiology
Background:
- Persistent infections like Helicobacter pylori, Chlamydia pneumoniae, Cytomegalovirus, and Herpes virus are investigated for links to ischemic heart disease due to chronic inflammation.
- Existing research presents conflicting evidence regarding the association between H. pylori and cardiovascular disease.
- Socioeconomic factors, such as limited access to healthcare, correlate with both H. pylori infection and coronary artery disease, complicating direct causal links.
Purpose of the Study:
- To evaluate the potential association between Helicobacter pylori infection and ischemic heart disease.
- To explore the need for definitive answers regarding the H. pylori-cardiovascular disease link.
- To identify specific mechanisms underlying potential vulnerability or protection toward coronary artery disease conferred by H. pylori.
Main Methods:
- Review of existing literature and observational studies investigating the correlation between H. pylori and cardiovascular disease.
- Analysis of the prevalence of H. pylori in patients with and without ischemic heart disease.
- Consideration of the potential for clinical trials, specifically randomized trials, to ascertain the effect of H. pylori eradication on cardiac events.
Main Results:
- The prevalence of H. pylori infection is high in individuals without ischemic heart disease and low in some with the condition, suggesting a complex or absent relationship.
- Several studies suggest a link between H. pylori and heart disease, while others find no significant association.
- No randomized trials to date have demonstrated a positive effect of H. pylori eradication on reducing the incidence of cardiac events.
Conclusions:
- Definitive answers are required to establish whether a link exists between Helicobacter pylori and cardiovascular disease.
- Further research is essential to elucidate specific mechanisms that might confer vulnerability or protection against coronary artery disease.
- Current evidence from randomized clinical trials does not support the hypothesis that H. pylori eradication prevents cardiac events.
Abstract:
Helicobacter pylori is one of four organisms often investigated for ari association with ischaemic heart disease. The four, including Chlamydia pneumoniae, Cytomegalovirus and Herpes virus, cause low-grade, life-long infections that can produce a persistent inflammation, the kind that leads to heart disease. Several studies suggest an association, but others suggest none. Patients with poor access to medical care are more likely to become infected and also more likely to suffer from coronary artery disease. Although the literature data are provocative and interesting, the two things may not be related. Helicobacter pylori infection is quite prevalent among individuals without ischaemic heart disease and absent in many of those with ischaemic heart disease. Thus, more definite answers about whether there is any link between Helicobacter pylori and cardiovascular disease are needed. It would be essential to establish the specific mechanisms that possibly confer vulnerability or protection toward coronaropathy. But a definite answer could come from clinical trials designed to test whether antibiotics can prevent the disease. Until now, no randomised trial has suggested a positive effect of Helicobacter pylori eradication in reducing the incidence of cardiac events.