Related Experiment Videos
The optimal blood pressure reduction
1Department of Geriatrics, University of Uppsala, Sweden.
Insights
Achieving optimal blood pressure reduction in hypertension treatment remains a challenge. Current methods may not fully prevent cardiovascular risks, and further research is needed to determine ideal blood pressure targets.
Area of Science:
- Cardiology
- Hypertension Research
- Clinical Trials
Background:
- Current antihypertensive treatments may not adequately reduce cardiovascular morbidity and mortality associated with arterial hypertension.
- Treated hypertensive patients often still exhibit elevated cardiovascular risks despite ongoing treatment.
- Explanations for residual risk include undertreatment or potential risks of excessive blood pressure lowering (J-curve effect).
Purpose of the Study:
- To investigate the optimal blood pressure reduction for maximizing the prevention of hypertension-associated cardiovascular events.
- To evaluate the effectiveness of current antihypertensive treatment strategies in achieving normotensive levels and reducing cardiovascular risks.
- To explore the potential benefits and risks associated with different levels of blood pressure lowering in hypertensive patients.
Main Methods:
- Review of data from prospective intervention trials, including the Swedish BBB (Treat Blood Pressure Better) study and the ongoing Hypertension Optimal Treatment (HOT) study.
- Analysis of epidemiological data from the Framingham Heart Study and a study of 50-year-old men in Gothenburg.
- Comparison of cardiovascular morbidity and mortality rates in treated versus untreated hypertensive populations.
Main Results:
- Existing antihypertensive treatments have not yet fully eliminated the increased risk of cardiovascular events in treated hypertensive individuals.
- Intervention trials suggest that blood pressure is often not reduced to strictly normotensive levels.
- Epidemiological data indicate that active hypertension intervention may shift population blood pressure towards lower levels, potentially benefiting even untreated individuals.
Conclusions:
- The optimal blood pressure reduction strategy for preventing cardiovascular complications in arterial hypertension requires further investigation.
- Current treatment approaches may need refinement to achieve maximal cardiovascular risk reduction.
- Antihypertensive interventions might have broader population-level benefits on blood pressure distribution than previously recognized.
Abstract:
OPTIMAL BLOOD PRESSURE REDUCTION: The optimal blood pressure reduction when treating arterial hypertension is obviously the one which causes the maximum achievable prevention of hypertension-associated cardiovascular morbidity and mortality. This goal has not yet been reached by present approaches to antihypertensive treatment. Several large intervention trials in hypertension have shown that treated hypertensive patients still have an increased risk of cardiovascular morbidity and mortality in spite of receiving antihypertensive treatment. One possible explanation for this is that treated blood pressure is rarely, if ever, reduced to strictly normotensive levels. Another explanation, favored by proponents of the J-curve argument, is that excessive lowering of blood pressure may increase cardiovascular risks. DATA AVAILABLE FROM INTERVENTION TRIALS: So far, two prospective intervention trials have addressed this problem, the Swedish BBB (Treat Blood Pressure Better) study, for which results have been published, and the much larger Hypertension Optimal Treatment (HOT) study, which is still under way. Moreover, new epidemiological data from the Framingham Heart Study and the study of 50-year-old men in Gothenburg suggest that active intervention against arterial hypertension may change the pattern of blood pressure distribution in the population towards lower levels, also in untreated subjects, suggesting an additional and unexpected benefit from antihypertensive treatment.