Huge meta-analysis refines role of antiplatelet therapy in high-risk patients

This 287-study meta-analysis aimed to address unanswered questions about antiplatelet therapy in patients at high risk for occlusive vascular events. It yielded several new findings or clarifications, including these: (1) Antiplatelets protect against vascular events in patients with unstable angina, intermittent claudication, and atrial fibrillation. (2) Antiplatelet therapy can be started promptly during acute ischemic stroke and continued long-term. (3) Daily aspirin doses of 75 to 150 mg seem to be as effective as higher doses for long-term treatment.