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Published on: September 5, 2016
Antiplatelet therapy in ischemic stroke
Endre Pongrácz1, Zoltán Káposzta
1Department of Neurology, Central Hospital, Ministry of Interior Budapest, H-1071 Budapest, Városligeti fasor 9-13, Hungary. epongracz@bm.gov.hu
Insights
Antiplatelet therapy effectively reduces stroke risk. Tailored drug therapy, considering individual factors and laboratory results, is crucial for long-term secondary prevention of ischemic stroke and reducing bleeding risks.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Pharmacology
Background:
- Stroke is a leading cause of death and disability.
- Atherothrombosis underlies ischemic stroke and vascular death.
- Antiplatelet therapy is standard for acute stroke and secondary prevention.
Purpose of the Study:
- To review the efficacy of antiplatelet therapy in stroke prevention.
- To discuss factors influencing antiplatelet drug dosage and response.
- To explore future directions in tailored antiplatelet therapy for secondary stroke prevention.
Main Methods:
- Review of numerous clinical trials and meta-analyses on antiplatelet therapy.
- Discussion of current antiplatelet agents and their mechanisms.
- Examination of the correlation between laboratory-measured effects and clinical outcomes.
Main Results:
- Antiplatelet therapy significantly reduces stroke risk in patients with prior stroke or transient ischemic attack.
- Individualized dosing is necessary due to genetic and environmental factors affecting drug response.
- Laboratory-measurable effects correlate with clinical effectiveness in stroke and cardiovascular patients.
Conclusions:
- Optimizing antiplatelet therapy requires consideration of individual patient variability.
- Future antiplatelet strategies may involve combination therapy with low dosages to balance efficacy and bleeding risk.
- Laboratory-controlled, tailored drug therapy is essential for effective long-term secondary prevention of ischemic stroke.
Abstract:
Stroke is the third leading cause of death and the leading cause of disability in the developed world. Atherothrombosis is the underlying condition that results in events leading to ischemic stroke and vascular death. Antiplatelet therapy is commonly used for both acute stroke and in secondary prevention. Numerous trials and meta-analyses have left little doubt that antiplatelet therapy effectively reduces stroke risk in patients with prior stroke or transient ischemic attack. Current antiplatelet agents include acetylsalicylic acid, clopidogrel, ticlopidine and extended release dipyridamole with low doses of acetylsalicyclic acid (aspirin). The optimum doses of antiplatelet drugs depend upon several variables, such as genetic and environmental factors, so that clinical and laboratory response for dosage varies for each patient. Recently, the correlation between the laboratory-measurable effect of antiplatelet agents and the clinical effectiveness on the mortality of ischemic stroke and cardiovascular patients has been documented. Due to the side effect of bleeding with different antithrombotic drugs, their future employment will be determined in combination with low dosages of each component. Laboratory-controlled, tailored drug therapy will be needed for long-lasting secondary prevention of ischemic stroke.
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