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[Combined Antithrombotic Therapy in Patients with a Stable Atherosclerotic Cardiovascular Diseases: What Direction did COMPASS Show?]

In patients with stable ischemic heart disease (IHD) and/or peripheral artery disease (PAD), current secondary prevention, including the antiplatelet monotherapy, is associated with a significant residual risk of recurrent cardiovascular complications (CVC). Practical application of results from many modern studies evaluating the effect of secondary prevention of atherothrombosis is complicated. An additional influence on coagulation may play a key role in prevention of atherothrombosis. In the COMPASS study, adding rivaroxaban 2.5 mg, b.i.d., to the acetylsalicylic acid (ASA) monotherapy significantly reduced the risk of death from cardiovascular complications, myocardial infarction or stroke, or all-cause death compared to the ASA monotherapy, in patients with IHD or PAD. The combination antithrombotic therapy was associated with an increased risk of major, but not fatal, or intracranial bleeding. In addition, PAD patients had a reduced risk of severe ischemic lower limb complications, including amputations. According to the subgroup analysis in the COMPASS study, supplementing ASA with rivaroxaban 2.5 mg, b.i.d., may appear most beneficial for patients with stable atherosclerotic disease and with a high risk of severe CVC without causing an increased risk of bleeding.