Question

A 70-year-old man with newly diagnosed non-valvular atrial fibrillation is reviewed in clinic. He has well-controlled hypertension but no prior stroke, diabetes, heart failure or vascular disease. According to the Canadian CHADS-65 algorithm, what is the most appropriate antithrombotic strategy?

Accepted Answer

Oral anticoagulation with a direct oral anticoagulant.

Answer

No antithrombotic therapy is required because his CHADS2 score is 0.

Answer

Acetylsalicylic acid 81 mg daily alone.

Answer

Dual antiplatelet therapy with acetylsalicylic acid and clopidogrel.

Answer

Warfarin plus acetylsalicylic acid.

Practice question

A 70-year-old man with newly diagnosed non-valvular atrial fibrillation is reviewed in clinic. He has well-controlled hypertension but no prior stroke, diabetes, heart failure or vascular disease. According to the Canadian CHADS-65 algorithm, what is the most appropriate antithrombotic strategy?