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Cardiovascular risks of hypertension: lessons from observational studies
1Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
Summary
Hypertension, affecting both systolic and diastolic blood pressure, is a major cardiovascular risk. Treatment benefits patients, but overall cardiovascular risk assessment is crucial for treatment decisions.
Area of Science:
- Cardiology
- Public Health
Background:
- Hypertension is a significant risk factor for cardiovascular disease (CVD) and mortality.
- Historically, diastolic blood pressure (DBP) received more clinical focus, but evidence now highlights both systolic blood pressure (SBP) and DBP as critical CVD determinants.
Purpose of the Study:
- To emphasize the independent contribution of elevated SBP to overall cardiovascular risk.
- To underscore the importance of comprehensive cardiovascular risk assessment in managing hypertension.
Main Methods:
- Review of large-scale epidemiologic studies and treatment trials on hypertension.
- Analysis of data demonstrating the clinical benefits of antihypertensive drug treatment.
Main Results:
- Both SBP and DBP are significant determinants of cardiovascular risk.
- Elevated SBP, particularly isolated or borderline elevations common in the elderly, poses notable risks.
- Antihypertensive drug treatment offers significant clinical benefits for patients with diastolic and isolated systolic hypertension.
Conclusions:
- Antihypertensive drug therapy provides a favorable net clinical benefit.
- Accurate assessment of overall cardiovascular risk, considering coexisting factors, is essential for guiding hypertension treatment decisions.