Question

A 76-year-old man with non-valvular atrial fibrillation and a CHA₂DS₂-VA score of 3 has been stable on warfarin for several years with therapeutic INR 2.0-3.0. He has no history of major bleeding. According to Australian AF and stroke prevention guidelines, what is the most appropriate ongoing antithrombotic strategy?

Accepted Answer

Continue warfarin with target INR 2.0-3.0

Answer

Cease warfarin and commence aspirin alone

Answer

Switch to dual antiplatelet therapy with aspirin and clopidogrel

Answer

Stop all antithrombotic therapy

Answer

Add aspirin to warfarin to further reduce stroke risk

Practice question