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Anticoagulation in cerebral ischemia.

B B Weksler, M Lewin

    Stroke
    |September 1, 1983
    PubMed
    Summary

    Anticoagulation helps prevent strokes caused by blood clots but may increase bleeding risks in patients who have already had a stroke. Further research is needed to confirm benefits and risks.

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    Area of Science:

    • Neurology
    • Cardiology
    • Hematology

    Background:

    • Anticoagulation is beneficial for preventing embolic strokes.
    • Patients with completed ischemic strokes may face increased risks of hemorrhagic complications with anticoagulation.
    • Advances in diagnosis and monitoring have reduced hemorrhage risks in treated patients.

    Purpose of the Study:

    • To evaluate the benefits and risks of anticoagulation in stroke patients.
    • To compare anticoagulation with anti-platelet agents for TIA patients.
    • To determine if anticoagulation prevents stroke progression.

    Main Methods:

    • Review of current anticoagulation practices and their impact on hemorrhage.
    • Analysis of studies comparing anticoagulation with anti-platelet therapy for TIA.
    • Identification of the need for prospective, randomized, controlled trials for stroke-in-evolution.

    Main Results:

    • Anticoagulation benefits patients at risk of embolic stroke.
    • No clear benefit of anticoagulation in completed ischemic stroke; potential for increased hemorrhage.
    • Current studies show no difference between anticoagulation and anti-platelet agents for TIA, but rely on historical controls.

    Conclusions:

    • Anticoagulation is indicated for stroke prevention in high-risk patients.
    • The role of anticoagulation in completed stroke requires careful risk-benefit assessment due to hemorrhage risk.
    • Prospective trials are essential to clarify the efficacy of anticoagulation in preventing stroke progression.

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