Monitoring oral antiplatelet therapy: is it justified?

Area of Science:

• Cardiovascular Medicine
• Hematology
• Pharmacology

Background:

• Platelets are crucial in forming blood clots (thrombus).
• Antiplatelet therapy is vital for preventing ischemic events in vascular interventions and managing atherothrombotic disease.
• Heterogeneous patient responses to antiplatelet drugs leave many at risk despite adherence.

Purpose of the Study:

• To present definitions and risk factors for suboptimal platelet inhibition with oral antiplatelet therapy.
• To introduce an algorithm for optimizing antiplatelet therapy using rapid point-of-care platelet function testing.
• To highlight the clinical utility of platelet function assays in managing cardiovascular disease.

Main Methods:

• Review of definitions and risk factors for suboptimal platelet inhibition.
• Description of point-of-care platelet function assays for aspirin, thienopyridines, and glycoprotein IIb/IIIa inhibitors.
• Presentation of a clinical algorithm for guiding antiplatelet therapy.

Main Results:

• Suboptimal platelet inhibition is a recognized issue in patients on antiplatelet therapy.
• Rapid platelet function assays allow for timely assessment of drug efficacy.
• An evidence-based algorithm can guide adjustments to antiplatelet regimens.

Conclusions:

• Personalized antiplatelet therapy guided by rapid platelet function testing can improve outcomes.
• Point-of-care testing offers a practical approach to managing antiplatelet response.
• Optimizing antiplatelet therapy is essential for reducing cardiovascular risk in high-burden patients.