Antiplatelet drugs in cardiovascular prevention: coronary events: acute phase and secondary prevention

    Prescrire International
    |September 30, 2000
    PubMed

    Insights

    Aspirin effectively reduces mortality and complications from myocardial infarction and angina. Optimal daily doses range from 75-350 mg, with specific combinations recommended for acute care and interventional procedures.

    Area of Science:

    • Cardiology
    • Pharmacology
    • Preventive Medicine

    Background:

    • Aspirin is a widely used antiplatelet agent with established benefits in cardiovascular disease.
    • Understanding optimal dosing and combinations is crucial for maximizing efficacy and minimizing risks.

    Purpose of the Study:

    • To review the evidence on aspirin's efficacy in various cardiovascular conditions.
    • To define optimal aspirin dosages and therapeutic combinations.
    • To explore alternative antiplatelet strategies when aspirin is not suitable.

    Main Methods:

    • Systematic review of clinical trials and observational studies.
    • Analysis of data on aspirin's impact on mortality, myocardial infarction, and procedural complications.
    • Evaluation of different aspirin dosages and combination therapies.

    Main Results:

    • Aspirin significantly reduces acute-phase mortality post-myocardial infarction and lowers risks in unstable and stable angina.
    • Recommended daily aspirin dosage for optimal risk-benefit is 75-350 mg, with 160 mg validated for acute myocardial infarction.
    • Combinations with thrombolytics, heparin, clopidogrel, or ticlopidine are discussed, with clopidogrel potentially superior to ticlopidine during stenting.

    Conclusions:

    • Aspirin is a cornerstone therapy for preventing cardiovascular events and complications.
    • Tailoring aspirin dosage and combination therapy based on clinical context is essential.
    • Clopidogrel serves as an alternative when aspirin is contraindicated, and oral anticoagulants may be preferred after complicated myocardial infarction.

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