Prescrire Int. 2000 Jun;9(47):87-8.
(1) In patients with atrial fibrillation and a moderate embolic risk, aspirin reduces the risk of stroke and has a comparable risk-benefit ratio to oral anticoagulants. (2) Oral anticoagulants are superior to aspirin in patients with atrial fibrillation and a history of stroke. (3) In patients with a mechanical valve prosthesis and a high embolic risk, the oral anticoagulant + aspirin combination has a better risk-benefit ratio than oral anticoagulant alone.
(1)在中度栓塞风险的房颤患者中,阿司匹林可降低中风风险,其风险效益比与口服抗凝剂相当。(2)在有中风病史的房颤患者中,口服抗凝剂优于阿司匹林。(3)在有机械瓣膜假体且栓塞风险高的患者中,口服抗凝剂与阿司匹林联合使用的风险效益比优于单独使用口服抗凝剂。