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Updated: Nov 4, 2025

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Anticoagulation in ST-Elevation Myocardial Infarction
Chirag Bavishi1, J Dawn Abbott1
1Lifespan Cardiovascular Institute, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA; Warren Alpert Medical School at Brown University, 222 Richmond Street, Providence, RI 02903, USA.
Insights
Anticoagulation is crucial for ST-elevation myocardial infarction treatment. This review compares unfractionated heparin and bivalirudin in percutaneous coronary intervention, discussing current guidelines and special patient populations.
Area of Science:
- Cardiology
- Pharmacology
- Interventional Cardiology
Background:
- Intravenous anticoagulation is a cornerstone in managing ST-elevation myocardial infarction (STEMI).
- Primary percutaneous coronary intervention (PCI) is the predominant reperfusion method for STEMI.
- Key anticoagulant choices include unfractionated heparin, enoxaparin, fondaparinux, and bivalirudin.
Purpose of the Study:
- To review the mechanisms and pharmacodynamics of available intravenous anticoagulants for STEMI.
- To compare outcomes of unfractionated heparin versus bivalirudin in contemporary PCI.
- To outline current guideline recommendations and explore unresolved issues in anticoagulation for specific patient groups.
Main Methods:
- Literature review and synthesis of pharmacodynamic data.
- Analysis of clinical trial outcomes comparing unfractionated heparin and bivalirudin in PCI.
- Examination of current practice guidelines and expert recommendations.
Main Results:
- Detailed comparison of anticoagulant mechanisms and pharmacodynamic profiles.
- Historical and contemporary outcome data for unfractionated heparin and bivalirudin in PCI.
- Summary of current guideline-directed anticoagulation strategies for STEMI.
Conclusions:
- Understanding anticoagulant properties is vital for optimal STEMI management.
- The choice of anticoagulant impacts outcomes in PCI, with evolving evidence.
- Further research is needed for anticoagulation in specific populations like women and CKD patients.
Abstract:
Intravenous anticoagulation is standard of care in the treatment of ST-elevation myocardial infarction. Primary percutaneous coronary intervention is the most common reperfusion strategy. Four anticoagulant options are available: unfractionated heparin, enoxaparin, fondaparinux, and bivalirudin. This article discusses the mechanism of action and key pharmacodynamic characteristics of these agents. The evolution of outcomes with unfractionated heparin compared with bivalirudin in the changing landscape of contemporary percutaneous coronary intervention is chronicled. Current anticoagulation recommendations from practice guidelines are provided and unresolved issues including treatment of patient subsets such as women and chronic kidney disease are explored.
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