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Association Between Hypertension and Incident Infective Endocarditis
Gyu Bae Lee1, Koh Eun Shin1, Kyungdo Han2
1Department of Family Medicine, Korea University Anam Hospital, Korea University, Seoul (G.B.L., K.E.S., Y.-H.K.).
Hypertension (Dallas, Tex. : 1979)
|May 3, 2022
Summary
Elevated blood pressure is a significant risk factor for developing infective endocarditis (IE). This large study found hypertension increases IE risk in a dose-dependent manner, highlighting a substantial public health concern.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- Hypertension is a prevalent cardiovascular condition with numerous known health implications.
- The relationship between hypertension and infective endocarditis (IE), a serious heart infection, requires further investigation.
- Understanding this association can inform preventative strategies and healthcare resource allocation.
Purpose of the Study:
- To evaluate the association between hypertension and the incidence of infective endocarditis (IE).
- To investigate IE incidence across different blood pressure categories, including normotension, prehypertension, and hypertension.
- To determine if hypertension acts as a risk factor for developing IE.
Main Methods:
- A large cohort study utilized data from the National Health Insurance Service database, including 4,080,331 individuals screened in 2009.
- Participants were categorized based on blood pressure levels: normotension, prehypertension, hypertension, and hypertension with medication.
- The Cox proportional hazard model was employed to assess the risk of incident IE over a 9-year follow-up period (2009-2018).
Main Results:
- A total of 812 cases of IE were diagnosed during the follow-up period.
- IE incidence rates per 100,000 person-years increased with blood pressure: 0.9 (normotension), 1.4 (prehypertension), 2.6 (hypertension), and 6.0 (hypertension with medication).
- Prehypertension, hypertension, and hypertension with medication were significantly associated with increased IE risk in a dose-dependent manner (HRs ranging from 1.33 to 2.56, all P<0.001).
Conclusions:
- Increased blood pressure is a significant risk factor for incident infective endocarditis, demonstrating a clear dose-dependent relationship.
- Hypertension contributes to the burden of rare but serious infective heart diseases, underscoring its public health impact.
- These findings emphasize the importance of blood pressure management in preventing IE.
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