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Published on: February 28, 2012
Current status of antiplatelet agents to prevent stroke
Thalia S Field1, Oscar R Benavente
1Department of Medicine, Division of Neurology, University of British Columbia, S169-2211 Wesbrook Mall, Vancouver, BC, V6T 2B5, Canada. tsfield@dal.ca
Insights
Antiplatelet agents like aspirin are crucial for preventing recurrent strokes and vascular events in noncardioembolic stroke patients. Early, lifelong treatment maximizes benefits for stroke survivors at high risk.
Area of Science:
- Neurology
- Cardiology
- Vascular Medicine
Background:
- Stroke is a primary cause of long-term disability, often linked to atherothrombotic mechanisms.
- A significant portion of ischemic strokes are preceded by prior stroke or transient ischemic attacks (TIAs).
- Stroke survivors face elevated risks of subsequent cerebrovascular and cardiovascular events.
Purpose of the Study:
- To emphasize the critical role of antiplatelet therapy in secondary stroke prevention.
- To outline current antiplatelet treatment options for patients with noncardioembolic stroke or TIA.
- To stress the importance of early initiation and lifelong adherence to antiplatelet treatment.
Main Methods:
- Review of current evidence and guidelines on secondary stroke prevention.
- Analysis of the efficacy of aspirin, clopidogrel, and aspirin/extended-release dipyridamole combinations.
- Emphasis on risk factor control as a complementary strategy.
Main Results:
- Antiplatelet agents are fundamental for secondary stroke prevention in noncardioembolic disease.
- Aspirin, clopidogrel, and aspirin/extended-release dipyridamole are established therapeutic options.
- Risk factor management is essential but antiplatelet therapy remains the cornerstone.
Conclusions:
- Lifelong antiplatelet therapy, initiated promptly, is vital for preventing recurrent vascular events post-stroke or TIA.
- Optimal management involves a combination of risk factor control and appropriate antiplatelet medication.
- Consistent adherence to treatment maximizes the protective effects of antiplatelet agents.
Abstract:
Stroke is one of the leading causes of disability; most are due to atherothrombotic mechanisms. About one third of ischemic strokes are preceded by other stroke or transient ischemic attacks. Stroke survivors are at high risk for vascular events (i.e., cerebrovascular and cardiovascular). Prevention of recurrent stroke and other major vascular events can be accomplished by control of risk factors. Nonetheless, the use of antiplatelet agents remains the fundamental component of secondary stroke prevention strategy in patients with noncardioembolic disease. Currently, the uses of aspirin, clopidogrel, or aspirin plus extended-release dipyridamole are valid alternatives for stroke or transient ischemic attack patients. To maximize the beneficial effects of these agents, the treatment should be initiated as early as possible and continue on a lifelong basis.
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