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The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension
Published on: May 17, 2024
[Evidence for treating hypertension in stroke prevention]
Carmen Serna Candel1, Oscar Moreno Pérez, José Manuel Moltó Jordà
1Servicio de Neurología, Hospital General Universitario de Alicante, Alicante, España. serna_car@gva.es
Insights
High blood pressure (hypertension) significantly increases stroke risk. Lowering blood pressure effectively prevents both ischemic and hemorrhagic strokes in various patient groups.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Public Health
Context:
- Hypertension is a major risk factor for stroke, increasing relative risk up to fivefold.
- It is linked to both ischemic and hemorrhagic stroke types.
- Hypertension impairs cerebral autoregulation and increases brain vessel resistance, measurable via transcranial Doppler.
Purpose:
- To review the evidence on blood pressure reduction for stroke prevention.
- To discuss the role of hypertension in stroke etiology and management.
- To provide guidance on pharmacologic treatment of hypertension for stroke prevention.
Summary:
- Clinical trials demonstrate that reducing blood pressure is effective for primary stroke prevention in hypertensive individuals.
- Blood pressure reduction also aids secondary stroke prevention in both hypertensive and non-hypertensive patients, even with modest decreases.
- No single drug class shows superiority; however, drugs with proven clinical trial efficacy are recommended.
Impact:
- Effective blood pressure management is crucial for reducing stroke incidence and improving patient outcomes.
- This review supports evidence-based guidelines for hypertension treatment to mitigate stroke risk.
- Highlights the importance of consistent monitoring and management of hypertension in clinical practice.
Abstract:
Hypertension represents a relative risk of stroke up to 5 times. It is associated to ischaemic and haemorrhagic stroke. Hypertension produces an increase in brain vessels resistance and loss of the physiological mechanism of autoregulation, and it can be measured with transcranial doppler. Clinical trials have established that reducing blood pressure is effective in primary prevention of ischaemic and haemorrhagic stroke in hypertensive patients and in secondary prevention in hypertensive and non-hypertensive patients, even with small reductions in blood pressure. There is no evidence of superiority of a definite drug, although drugs that have proven efficacy in clinical trials are recommended in clinical practice.
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