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Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

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Anticoagulation drug therapy: a review.

Katherine Harter1, Michael Levine1, Sean O Henderson1

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Emergency physicians must understand both traditional anticoagulants like heparin and warfarin, and newer agents. Familiarity with novel anticoagulants is crucial for managing patients in the emergency department, including those with bleeding complications.

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Area of Science:

  • Pharmacology
  • Emergency Medicine
  • Internal Medicine

Background:

  • Warfarin, a traditional oral anticoagulant, has a narrow therapeutic index requiring frequent monitoring.
  • The development of novel anticoagulants offers alternatives with potentially improved safety and efficacy profiles.
  • Emergency physicians encounter patients on various anticoagulants for diverse clinical scenarios.

Purpose of the Study:

  • To review the indications, mechanisms of action, and adverse effects of commonly used anticoagulants.
  • To discuss potential reversal strategies for anticoagulant-related complications.
  • To equip emergency physicians with essential knowledge of both traditional and novel anticoagulants.

Main Methods:

  • Literature review of established and emerging anticoagulant therapies.
  • Analysis of clinical indications and pharmacokinetic properties.
  • Synthesis of information on adverse events and management strategies.

Main Results:

  • Heparin and warfarin remain important parenteral and oral anticoagulants, respectively.
  • Novel oral anticoagulants (NOACs) represent a significant advancement in anticoagulant therapy.
  • Understanding of specific reversal agents for different anticoagulant classes is critical.

Conclusions:

  • Emergency physicians require comprehensive knowledge of anticoagulants, including heparin, warfarin, and novel agents.
  • Preparedness for managing anticoagulant-related emergencies, particularly bleeding, is essential.
  • This review provides a practical guide for emergency department management of patients on anticoagulation.