A 74-year-old man with non-valvular atrial fibrillation and a previous ischaemic stroke asks whether he can stop his anticoagulant. His CHADS₂ score is 4 and he has had no major bleeding. What is the most appropriate recommendation?AStop anticoagulation because stroke risk falls with ageBSwitch to acetylsalicylic acid aloneCContinue long-term oral anticoagulationDUse dual antiplatelet therapy instead of anticoagulationEStop all antithrombotic therapy and monitor clinicallyCheck my answer