Direct Oral Anticoagulant Inhibitors: Mode of Action, Clinical Aspects.

This chapter provides a comprehensive overview of direct oral anticoagulants (DOACs), focusing on their mechanisms of action, clinical utility, and practical considerations in anticoagulation management. DOACs have revolutionised anticoagulation by selectively targeting thrombin and activated factor X (FXa), offering improved safety, predictable pharmacokinetics, and reduced need for monitoring. The chapter covers their indications, contraindications, dosing, perioperative management, reversal, and use in special populations, including those with renal or hepatic impairment, cancer-associated thrombosis, and extreme body weights. It provides clinicians with practical guidance for the effective application of DOACs in various clinical settings.