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Updated: Mar 6, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Does percutaneous coronary stent implantation increase platelet reactivity?
P W A Janssen1, E A Mol2, S M C Geene1
1Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands; St. Antonius Center for Platelet Function Research, St. Antonius Hospital, Nieuwegein, The Netherlands.
High platelet reactivity (PR) measurements after percutaneous coronary intervention (PCI) may be affected by stent implantation. Optimal timing for PR assessment is crucial for accurate antiplatelet therapy response and thrombotic event risk prediction.
Area of Science:
- Cardiology
- Pharmacology
- Biomedical Engineering
Background:
- High platelet reactivity (PR) on clopidogrel therapy correlates with thrombotic events post-percutaneous coronary intervention (PCI).
- The optimal timing for PR measurement (pre-PCI vs. post-PCI) remains unclear.
- PCI procedures, including stent implantation, may acutely affect platelet activation and reactivity.
Purpose of the Study:
- To evaluate the impact of stent implantation during PCI on PR.
- To determine the optimal timing for PR measurements in patients undergoing PCI.
- To improve the interpretation of antiplatelet therapy response and thrombotic risk prediction.
Main Methods:
- Systematic literature search was conducted.
- Studies investigating PR in patients undergoing PCI were reviewed.
- Data on PR changes related to PCI timing were analyzed.
Main Results:
- Stent implantation during PCI may influence PR measurements.
- Timing of PR assessment (before vs. after PCI) can affect reported reactivity levels.
- Variability in PR measurements can impact clinical decision-making.
Conclusions:
- The timing of PR measurement is critical for accurate assessment of antiplatelet therapy effectiveness post-PCI.
- Further research is needed to establish standardized protocols for PR testing.
- Optimizing PR measurement timing can enhance patient risk stratification and management.
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