Abstract:In large studies of patients with cardiac disease, it was observed that up to 9% are ASA resistant (ASAR) and 23% are ASA semi responders using the platelet function analyzer (PFA-100), which measures whole blood platelet adhesion and aggregation under high shear. The prevalence of ASAR is of great clinical importance. With an estimated 20 million patients in the USA taking ASA for prevention of atherosclerotic events, even a 10% incidence equates to more than two million patients receiving inadequate anti-pla… Show more
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