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Updated: Aug 5, 2025

Retinal and Choroidal Thickness Changes in Populations with Helicobacter pylori Infection by Swept-Source Optical Coherence Tomography
Published on: November 1, 2024
Helicobacter pylori infection and risk of cardiovascular disease
Lichang Sun1, Haoxiao Zheng1, Min Qiu1
1Department of Cardiology, Shunde Hospital, Southern Medical University, Foshan, China.
Insights
Helicobacter pylori infection is linked to a slightly higher risk of cardiovascular disease (CVD). Screening for H. pylori may be important for individuals at high risk of CVD.
Area of Science:
- Cardiology
- Infectious Diseases
- Epidemiology
Background:
- The association between Helicobacter pylori (H. pylori) infection and cardiovascular disease (CVD) risk is debated.
- This meta-analysis investigates the link between H. pylori infection and CVD incidence.
Approach:
- A systematic search of PubMed, EMBASE, and Cochrane Library was conducted up to August 31, 2022.
- Included were 41 observational cohort studies with 230,288 participants, analyzing multivariable-adjusted risks for composite CVD, coronary heart disease (CHD), stroke, and all-cause mortality.
Key Points:
- H. pylori infection showed a mild increase in composite CVD risk (RR 1.10) and CHD risk (RR 1.10).
- No significant association was found for stroke or all-cause mortality.
- Cytotoxin-associated gene-A (CagA)-positive H. pylori infection significantly increased CVD risk (RR 1.58) compared to CagA-negative infection.
Conclusions:
- H. pylori infection is associated with a modest elevation in CVD risk.
- Screening for H. pylori in high-risk CVD patients could have significant public health and clinical implications.
Background:
Whether Helicobacter pylori (H. pylori) infection is associated with an increased risk of cardiovascular disease (CVD) remains controversial. This study aimed to investigate the association between H. pylori infection and the risk of CVD.
Methods:
Potentially related studies were searched in the electronic databases, including PubMed, EMBASE and Cochrane Library, from inception to 31 August 2022. Observational cohort studies that reported the multivariable-adjusted relative risks (RRs) for composite CVD, CHD, stroke, or all-cause mortality associated with H. pylori infection were included in the meta-analysis, using random-effects models.
Results:
Forty-one cohort studies with 230,288 participants were included. After a median follow-up duration of 6.3 years, H. pylori infection was associated with a mildly increased risk of composite CVD (RR 1.10, 95% CI 1.03, 1.18) and coronary heart disease (RR 1.10, 95% CI 1.02, 1.18) compared with those without H. pylori infection. No significant association was observed between H. pylori infection and risk of stroke (RR 1.08, 95% CI 0.94, 1.23) or all-cause mortality (RR 1.02, 95% CI 0.90, 1.16). Compared with cytotoxin-associated gene-A (CagA) negative H. pylori infection, the risk of CVD was significantly increased in patients with CagA positive H. pylori infection (RR 1.58, 95% CI 1.03, 2.41).
Conclusions:
Helicobacter pylori infection is associated with a mildly increased risk of CVD. It may be of great public health and clinical significance to screen H. pylori infection in patients with a high risk of CVD.
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