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Updated: May 8, 2025

Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
Platelet Function Testing and Genotyping for Tailoring Treatment in Complex PCI Patients
Athanasios Moulias1, Angeliki Papageorgiou1, Dimitrios Alexopoulos2
1Department of Cardiology, General University Hospital of Patras Patras, Greece.
Insights
Optimizing dual antiplatelet therapy (DAPT) for complex percutaneous coronary intervention (PCI) patients is challenging. This review explores platelet function testing and genotyping for tailoring antiplatelet treatment, noting limited current evidence.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Dual antiplatelet therapy (DAPT) with aspirin and a P2Y12 inhibitor is standard post-percutaneous coronary intervention (PCI).
- Complex PCI (C-PCI) patients face higher ischemic risks, complicating DAPT strategy selection.
- Balancing ischemic and bleeding risks in C-PCI necessitates individualized DAPT approaches.
Purpose of the Study:
- To critically evaluate the utility of platelet function testing and genotyping for tailoring DAPT in C-PCI patients.
- To review current evidence on personalized antiplatelet therapy in this specific subpopulation.
Main Methods:
- Literature review of clinical trials and studies.
- Analysis of evidence regarding platelet function testing and genotyping in C-PCI patients.
- Assessment of treatment individualization strategies for DAPT.
Main Results:
- Existing trials on platelet function testing and genotyping in PCI populations show conflicting and largely neutral results.
- The role of these tools for optimizing DAPT in C-PCI remains uncertain due to limited dedicated research.
- Individualization of DAPT potency and duration is an evolving strategy for C-PCI.
Conclusions:
- Current evidence is insufficient to definitively recommend platelet function testing or genotyping for guiding DAPT in C-PCI patients.
- Further dedicated studies are required to establish the clinical utility of these personalized approaches.
- Optimizing antiplatelet therapy in C-PCI remains an area needing further investigation.
Abstract:
Dual antiplatelet therapy (DAPT), comprising aspirin and a P2Y12 receptor inhibitor, is considered the cornerstone of treatment in patients who have undergone percutaneous coronary intervention (PCI). Patients with complex PCI (C-PCI) constitute a special PCI subpopulation, characterized by increased ischemic risk. Identifying the optimal DAPT strategy is often challenging and remains controversial in this setting. In an attempt to balance ischemic and bleeding risks in C-PCI patients receiving DAPT, treatment individualization regarding potency and duration has evolved as a feasible approach. Platelet function testing and genotyping have been evaluated in several trials with conflicting and mostly neutral results. The aim of this review is to critically appreciate the role of these tools for antiplatelet treatment tailoring specifically in C-PCI patients. Because existing evidence is limited, dedicated future studies are warranted to elucidate the utility of platelet function testing and genotyping in C-PCI.
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