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Catheter-related thrombosis: biological and clinical evidence for risk with currently available anticoagulants
Gilles Montalescot1, Jeanine M Walenga
1Institut de Cardiogie, Centre Hospitalier Universitarie Pitié-Salpetrèire, Paris, France. gilles.montalescot@psl.ap-hop-paris.fr
Insights
Anticoagulants for percutaneous coronary intervention (PCI) must balance preventing events and complications. Newer factor Xa inhibitors may increase catheter thrombosis risk compared to heparin agents.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Percutaneous coronary intervention (PCI) requires anticoagulation to prevent thrombotic events.
- Current anticoagulants include unfractionated heparin (UFH), enoxaparin, fondaparinux, and bivalirudin.
- UFH and enoxaparin demonstrate favorable efficacy and safety in PCI with rare catheter thrombosis.
Purpose of the Study:
- To evaluate the safety and efficacy of anticoagulants during PCI.
- To compare periprocedural complication rates among different anticoagulant classes.
- To investigate the risk of catheter thrombosis with novel anticoagulants.
Main Methods:
- Review of clinical trial data and experimental systems.
- Comparison of heparin-based agents with newer anticoagulants, including factor Xa inhibitors.
- Analysis of polytherapeutic versus single-target anticoagulant mechanisms.
Main Results:
- Heparin-based agents (UFH, enoxaparin) show good efficacy and low complication rates in PCI.
- Some factor Xa inhibitors are linked to higher catheter thrombosis rates versus heparin.
- Polytherapeutic agents may offer superior anticoagulation compared to single-target agents.
Conclusions:
- Anticoagulant choice for PCI impacts both efficacy and periprocedural safety.
- Further research is needed to clarify the drivers of catheter thrombosis with novel agents.
- Future trials must report periprocedural complication rates for novel anticoagulation therapies in PCI.
Abstract:
Anticoagulants used during percutaneous coronary intervention (PCI) should not only prevent coronary events, but also minimize the risk of periprocedural complications. Current anticoagulation therapies for PCI include unfractionated heparin (UFH), enoxaparin, fondaparinux, and bivalirudin. UFH and enoxaparin have good efficacy and safety profiles in PCI; furthermore, associated periprocedural complications such as catheter thrombosis are rare. Although newer anticoagulants seem safe and effective in patients with acute coronary syndrome, clinical trial data suggest that some pure factor Xa (FXa) inhibitors are associated with increased rates of catheter thrombosis, compared with heparin-based agents. Experimental systems show that polytherapeutic agents, including UFH and enoxaparin, are more effective anticoagulants than certain single-target agents. More studies are needed to assess whether catheter thrombosis is a class-, drug-, or dose-related effect, and how best to prevent it. Future trials should report the rates of periprocedural complications when assessing the safety of novel anticoagulation therapies in PCI.
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