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Blood pressure control after acute stroke
1Acute Stroke Unit, University Department of Medicine and Therapeutics, Western Infirmary, Glasgow, Scotland, UK.
Insights
Managing blood pressure after a stroke is complex. While long-term control prevents strokes, immediate reduction may worsen outcomes. A trial is proposed to determine the best approach for blood pressure management in acute stroke patients.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Clinical Trials
Background:
- Long-term blood pressure control is vital for stroke prevention.
- However, acute blood pressure reduction post-stroke is linked to poorer neurological and functional outcomes.
- The optimal blood pressure management strategy in the initial 48 hours after acute stroke remains unclear.
Purpose of the Study:
- To investigate the optimal blood pressure management strategy in the acute phase following a stroke.
- To compare the effects of maintaining versus temporarily discontinuing antihypertensive therapy.
Main Methods:
- A clinical trial is proposed to address the uncertainty in blood pressure management post-stroke.
- The trial will compare two strategies: maintaining existing antihypertensive therapy versus temporary discontinuation.
- Previous research explored angiotensin-converting enzyme (ACE) inhibitor-based treatment (perindopril) for secondary stroke prevention.
Main Results:
- Perindopril, an ACE inhibitor, reduced blood pressure in acute ischemic stroke patients (2-7 days post-stroke).
- This reduction was achieved without adverse effects on cerebral blood flow, as measured by Doppler ultrasound.
- The study highlights the need for further investigation into immediate post-stroke blood pressure management.
Conclusions:
- A clinical trial is proposed to determine the optimal blood pressure management strategy in the acute phase after stroke.
- The trial aims to establish whether maintaining pre-existing antihypertensive therapy or temporarily discontinuing it yields better outcomes.
- This research is crucial for refining clinical guidelines for stroke care.
Background:
Although long-term blood pressure control is known to prevent stroke, acute blood pressure reduction after stroke is associated with worse neurological and functional outcome.
Vasoactive Drug Treatment After Stroke:
Chronic blood pressure reduction for secondary prevention of stroke is presently being tested within the PROGRESS trial. This study uses angiotensin-converting enzyme (ACE) inhibitor-based treatment (perindopril) versus placebo. ACE inhibitors may reduce blood pressure without adversely affecting cerebral blood flow. We have recently reported elsewhere that perindopril 4 mg once daily, initiated within 2-7 days of acute ischaemic stroke, reduces blood pressure without adverse effects on cerebral blood flow as measured by Doppler ultrasound. Nevertheless, the optimal policy with regard to blood pressure management in the first 48 h after acute stroke remains uncertain.
Conclusions:
A clinical trial is proposed to establish whether it is better to maintain pre-existing antihypertensive therapy or to discontinue this temporarily.