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Updated: Jun 14, 2026

Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
Platelet function testing and risk of bleeding complications
José Luis Ferreiro1, Dirk Sibbing, Dominick J Angiolillo
1University of Florida College of Medicine, Jacksonville, FL 32209, USA.
Insights
Platelet function testing helps balance antiplatelet therapy's benefits against bleeding risks in coronary artery disease patients. It identifies individuals prone to ischemic or bleeding complications, guiding personalized treatment for better outcomes.
Area of Science:
- Cardiology
- Pharmacology
- Clinical Medicine
Background:
- Antiplatelet therapy is crucial for preventing atherothrombotic events in coronary artery disease (CAD), especially post-revascularization.
- Balancing antithrombotic efficacy against bleeding risk is critical for optimal patient outcomes.
- Individual responses to antiplatelet drugs vary, influencing thrombotic and bleeding event rates.
Purpose of the Study:
- To review evidence linking platelet function testing (PFT) to adverse clinical outcomes, particularly bleeding.
- To explore the potential applications of PFT in guiding therapy with new antithrombotic agents.
Main Methods:
- Review of existing literature and clinical studies.
- Analysis of data associating PFT results with ischemic and bleeding complications.
- Discussion of the clinical utility of PFT in managing antiplatelet therapy.
Main Results:
- Platelet function assays can identify patients at increased risk for both thrombotic and bleeding events.
- Variability in platelet inhibition levels correlates with differing clinical outcomes.
- PFT may help personalize antiplatelet treatment strategies.
Conclusions:
- Platelet function testing is a valuable tool for assessing individual response to antiplatelet therapy.
- PFT can aid in optimizing treatment to minimize bleeding and thrombotic risks in CAD patients.
- The role of PFT is expected to grow with the advent of novel antithrombotic agents.
Abstract:
Antiplatelet therapy has a key role in preventing atherothrombotic events in patients with coronary artery disease, particularly in those undergoing revascularisation procedures. However, this may occur at the expense of an increase risk of bleeding. Therefore, the balance between thrombotic and bleeding events is critical in order to achieve optimal outcomes. Since there is a broad variability in individual response profiles to antiplatelet therapy, these outcomes (thrombosis vs. bleeding) may depend on the level of platelet inhibition achieved in a given subject. Platelet function assays have emerged as a useful tool for its potential to determine patients at a higher risk of ischaemic and bleeding complications. The present manuscript will review the available evidence associating platelet function testing with adverse clinical outcomes, in particular bleeding, and their potential applications in lieu of novel and more potent antithrombotic agents that will be introduced into clinical practice in the near future.
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