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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
Published on: February 14, 2017
[The coagulation cascade--clinical implications]
1Medizinische Klinik und Poliklinik, Abteilung III, Universitätsklinikum Tübingen, Eberhard-Karls-Universität Tübingen, Tübingen.
Insights
This study reviews anticoagulant strategies for patients undergoing percutaneous coronary intervention (PCI). It highlights the use of unfractionated heparin (UFH) and low-molecular-weight heparins (LMWH) for preventing ischemic events.
Area of Science:
- Biochemistry
- Pharmacology
- Cardiology
Context:
- Coronary artery disease (CAD) patients undergoing percutaneous coronary intervention (PCI) have an activated coagulation system.
- Preventing ischemic events in these patients requires effective anticoagulant strategies.
- Primary hemostasis involves platelet-rich thrombus formation, while secondary hemostasis leads to fibrin formation.
Purpose:
- To review the role of anticoagulants in patients undergoing PCI.
- To compare unfractionated heparin (UFH) and low-molecular-weight heparins (LMWH) in this setting.
Summary:
- The coagulation system is a complex cascade with various therapeutic inhibition points.
- Unfractionated heparin (UFH) is a standard intravenous anticoagulant therapy during PCI.
- Low-molecular-weight heparins (LMWH) are increasingly utilized due to favorable pharmacodynamic properties, though their comparative efficacy to UFH requires further evaluation.
Impact:
- Informs clinical decisions regarding anticoagulant selection for PCI patients.
- Highlights the need for further research to fully evaluate LMWH versus UFH.
- Contributes to optimizing therapeutic strategies for preventing ischemic complications in cardiovascular interventions.
Abstract:
The coagulation system is a cascade of complex, interacting steps, that can selectively be inhibited in distinct ways. Thus, various therapeutic options are offered, concerning primary hemostasis, which results in formation of a platelet-rich thrombus, as well as secondary hemostasis, resulting in fibrin formation. For patients with coronary artery disease, who have to undergo percutaneous coronary intervention (PCI), a sufficient anticoagulant strategy is essential for prevention of ischemic events, due to the activated state of the coagulation system of these patients. Next to antiplatelet therapy, unfractionated heparin (UFH) is a well-established concomitant intravenous therapy during PCI. Also low-molecular-weight heparins (LMWH) are increasingly used in this setting due to their favorable pharmacodynamic properties. The exact value of these substances in comparison to UFH is not completely evaluated yet.
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