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Triple antiplatelet therapy for secondary prevention of recurrent ischemic stroke
Mark Willmot1, Lian Zhao, Stan Heptinstall
1University of Nottingham, Institute of Neurosciences, Nottingham, United Kingdom.
Insights
Triple antiplatelet therapy, combining aspirin, dipyridamole, and clopidogrel, shows promise for preventing recurrent ischemic strokes. This approach may be superior to single or dual antiplatelet agents in select patients, though further safety and efficacy trials are needed.
Area of Science:
- Neurology
- Cardiology
- Pharmacology
Background:
- Antiplatelet agents are crucial for secondary stroke prevention.
- Recurrent ischemic strokes can occur despite standard single or dual antiplatelet therapy.
- Laboratory studies suggest triple antiplatelet therapy enhances inhibition of platelet and leucocyte function.
Purpose of the Study:
- To evaluate the efficacy of triple antiplatelet therapy in patients experiencing recurrent ischemic strokes.
- To assess the response to a combination of aspirin, dipyridamole, and clopidogrel.
Main Methods:
- Case report of a 69-year-old male patient with recurrent strokes.
- Retrospective analysis of 8 additional patients treated with triple antiplatelet therapy.
- Follow-up period of 28 months for the patient series.
Main Results:
- The index patient responded to triple antiplatelet therapy (aspirin, dipyridamole, clopidogrel) after failure of single/dual therapy.
- Triple antiplatelet therapy was effective in 8 additional patients over 28 months.
- Laboratory studies indicate superior platelet and leucocyte inhibition with triple therapy.
Conclusions:
- Triple antiplatelet therapy may offer a viable option for secondary stroke prevention in specific patient populations.
- Clinical trials are necessary to establish the safety and efficacy of this combination therapy.
- Risk of major bleeding must be carefully considered and evaluated in future studies.
Abstract:
Antiplatelet agents are effective for secondary prevention after ischemic stroke, although they do not always prevent recurrent events. Laboratory studies confirm that therapy with 3 antiplatelet agents is superior to dual therapy or monotherapy at inhibiting platelet and leucocyte function. We report here a 69-year-old man who had recurrent strokes despite single or dual antiplatelet agents, but who responded to a combination of aspirin, dipyridamole, and clopidogrel. Likewise, triple antiplatelet therapy was effective in a series of 8 additional patients during a period of 28 months of follow up. Because combining 3 agents runs the risk of major bleeding, clinical trials are essential to address issues of safety and efficacy in patients with stroke.
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