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Clopidogrel Platelet Function Tests

Caveats and Controversies


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Results of VerifyNow Testing

Slide 22

December 2011

This slide summarizes a little over 2 years of VerifyNow testing in Mayo Clinic Florida, looking at selected patients suspected of being resistant to clopidogrel or who received a loading dose of clopidogrel in preparation for surgery, often for stent placement with the goal of prevention of stent thrombosis. If 20% or less inhibition is used as the cutoff for clopidogrel resistance, 37% of the patients tested were found to be resistant out of over 750 patients tested. If however 30% was used as the cutoff for resistance, slightly over 50% of patients were resistant.

Results of VerifyNow Testing


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