Replacing aspirin and warfarin for secondary stroke prevention: is it worth the costs?

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    Abstract

    PURPOSE OF REVIEW: This review aims to determine whether it is cost-effective to replace aspirin and warfarin with more effective, yet more costly, treatments for secondary stroke prevention.

    RECENT FINDINGS: For preventing recurrent stroke of arterial origin, clopidogrel and the combination of aspirin and extended-release dipyridamole are equally effective and more effective than aspirin. However, limited data only support their incremental cost-effectiveness, compared with aspirin, in nondisabled patients at high risk of a recurrent ischaemic event (e.g. >20% per year) and when used for short periods (e.g. <2 years). Clopidogrel is also cost-effective for patients who are intolerant of aspirin. For preventing recurrent stroke due to atrial fibrillation, warfarin is cost-effective. Although the combination of clopidogrel and aspirin is more effective than aspirin, it is unlikely to be more cost-effective. Dabigatran is at least as effective and well tolerated as warfarin, but its eventual cost will determine its incremental cost-effectiveness. For atrial fibrillation patients in whom anticoagulation is contraindicated, percutaneous closure of the left atrial appendage may be an alternative strategy. Dronedarone may prove to be a cost-effective adjunct to antithrombotic therapy in patients with atrial fibrillation.

    SUMMARY: The incremental cost-effectiveness of newer antithrombotic treatments for secondary stroke prevention, compared with aspirin or warfarin, remains to be established.

    Original languageEnglish
    Pages (from-to)65-72
    Number of pages8
    JournalCurrent Opinion in Neurology
    Volume23
    Issue number1
    DOIs
    Publication statusPublished - Feb 2010

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