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Background: Previous reports have associated acute coronary syndromes(ACSs) with cerebrovascular disease but in general have not included long- term patient follow- up or have not analyzed ischemic and hemorrhagic cerebrovascular events separately. Methods: We analyzed stroke outcomes from the OPUS- TIMI 16 study, a multicenter, randomized, placebo- controlled trial. Patients were randomized to aspirin plus either orbofiban or placebo and followed for up to 1 year. Cerebrovascular events were prospectively identified and classified by a committee of cardiologists and neurologists blinded to treatment assignment. Results: During 10 months of follow- up, there were 150(1.5% ) patients with cerebrovascular events. Risk factors for ischemic stroke(n=67) and transient ischemic attack(TIA)(n=44) were age, prior ischemic stroke, history of hypertension, and increased heart rate. Prior ischemic stroke and history of hypertension were not risk factors for 30- day ischemic stroke or TIA. Risk factors for intracranial hemorrhage(ICH)(n=14) were age, history of hypertension, history of TIA, and coronary angiography with evidence of coronary artery disease. Compared with placebo, treatment with orbofiban was associated with a nonsignificant increased risk of ischemic stroke or TIA(HR 1.15, 95% CI 0.76- 1.74, P=.51)and ICH(HR 1.25, 95% CI 0.39- 4.00, P=.70). Conclusions: The overall incidence of cerebrovascular events after ACS was highest in the first 30 days then declined; risk factors for cerebrovascular events may be different in the different periods. Orbofiban, despite no significant excess risk of ICH, was not effective in preventing ischemic stroke or TIA.
Background: Previous reports have associated acute coronary syndromes (ACSs) with cerebrovascular disease but in general have not included long-term patients follow-up or have not been analyzed ischemic and hemorrhagic cerebrovascular events separately. Methods: We analyzed stroke outcomes from the OPUS-TIMI 16 study, a multicenter, randomized, placebo-controlled trial. Patients were randomized to aspirin plus either orbofiban or placebo and followed for up to 1 year. Cerebrovascular events were prospectively identified and classified by a committee of cardiologists and neurologists blinded to treatment assignment. Results: During 10 months of follow-up, there were 150 (1.5%) patients with cerebrovascular events. Risk factors for ischemic stroke (n = 67) and transient ischemic attack (TIA) (n = 44) were age, prior ischemic stroke , history of hypertension, and increased heart rate. Prior ischemic stroke and history of hypertension were not risk factors for 30- day ischemic stroke or TIA. Risk fa ctors for intracranial hemorrhage (ICH) (n = 14) were age, history of hypertension, history of TIA, and coronary angiography with evidence of coronary artery disease. Compared with a non-statinant increased risk of ischemic stroke or TIA (HR 1.15, 95% CI 0.76-1.74, P = .51) and ICH (HR 1.25, 95% CI 0.39-4.00, P = .70) Conclusions: The overall incidence of cerebrovascular events after ACS was highest in the first 30 days then declined; risk factors for cerebrovascular events may be different in the different periods. Orbofiban, despite no significant excess risk of ICH, was not effective in preventing ischemic stroke or TIA.