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Hypertension and stroke: an appraisal of the evidence and implications for clinical management
Daniel T Lackland1, Jenifer H Voeks1, Andrea D Boan1
1a Division of Translational Neuroscience and Population Studies, Department of Neurology , Medical University of South Carolina , Charleston , SC 29425 , USA.
Insights
Intensive blood pressure treatment significantly lowers stroke risk, especially for those with hypertension. While benefits are clear, further research is needed to refine stroke prevention guidelines.
Area of Science:
- Cardiovascular Medicine
- Neurology
- Nephrology
Background:
- Hypertension is a major risk factor for cardiovascular and renal diseases.
- The link between high blood pressure and stroke risk is well-established.
- Previous stroke prevention guidelines for hypertension management lacked clarity due to evidence limitations.
Purpose of the Study:
- To assess the evidence for hypertension management in stroke risk reduction.
- To evaluate the impact of The Systolic Blood Pressure Intervention Trial (SPRINT) on stroke prevention.
- To identify remaining evidence gaps in managing hypertension for stroke prevention.
Main Methods:
- Review and appraisal of clinical study results and randomized control trials.
- Analysis of evidence concerning hypertension management strategies.
- Consideration of stroke as a primary outcome in clinical trials.
Main Results:
- Intensive hypertension treatment demonstrates clear benefits for stroke prevention.
- Evidence supports the reduction of stroke risk through blood pressure management.
- The Systolic Blood Pressure Intervention Trial (SPRINT) provides significant data on intensive treatment.
Conclusions:
- Intense blood pressure management is beneficial for primary and secondary stroke prevention.
- Despite clear benefits, further research is required to address existing evidence gaps.
- Optimizing hypertension treatment remains crucial for reducing stroke incidence.
Abstract:
While elevated blood pressure has long been associated with cardiovascular and renal outcomes, the association of hypertension and increased stroke risks is perhaps the strongest and best recognized. Furthermore, the reduction of blood pressure with antihypertensive agents has been well documented with lower stroke risks. The specific recommendations for high blood pressure management for stroke prevention have been somewhat unclear due to the study design and the quality of the evidence based on clinical study results. Further complicating the assessment process is the consideration of stroke as a primary outcome of randomized control trials. This appraisal and review describes the assessment of the evidence and trial results for management of hypertension and stroke risk reduction with consideration of the impact of The Systolic Blood Pressure Intervention Trial (SPRINT). While evidence clearly identifies the benefit of intense hypertension treatment for the primary and secondary prevention of stroke, evidence gaps still remain.
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