Abstract
Objective: To review and discuss evidence-based guideline recommendations for the use of antiplatelet agents for secondary prevention in patients with ischemic stroke or TIA.Methods: A literature search was conducted on PubMed through August 2007 using combinations of the following search terms: aspirin, clopidogrel, dipyridamole plus aspirin, transient ischemic attack, secondary prevention, stroke and guidelines.Results: Modification of risk factors such as hypertension, diabetes, hypercholesterolemia, cigarette smoking and obesity are fundamental to stroke management. Antiplatelet therapy is highly effective in reducing the risk of recurrent vascular events and is recommended over oral anticoagulants for non-cardioembolic stroke. Evidence from head-to-head comparative clinical trials versus aspirin monotherapy has shown that clopidogrel and the combination of aspirin plus dipyridamole are safe and effective therapeutic options.Discussion: Despite the availability of evidence-based guidelines, recommended interventions are largely underutilized. Quality improvement initiatives such as the ASA's Get with the Guidelines – Stroke and the UCLA stroke PROTECT Program have demonstrated effectiveness in increasing adherence to recommended therapies and thereby improving patient outcomes.
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