Magnitude of and Risk Factors for In-Hospital and Postdischarge Stroke in Patients With Acute Coronary Syndromes

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Abstract
Background— Stroke is a recognized complication after acute myocardial infarction, but few studies have investigated the incidence and outcome of stroke in patients with acute coronary syndrome (ACS). This study examined the incidence and outcomes of hemorrhagic and nonhemorrhagic stroke and risk factors associated with stroke in patients with ACS. Methods and Results— Data were obtained from 35 233 patients enrolled in the Global Registry of Acute Coronary Events (GRACE) with an ACS. In-hospital strokes occurred in 310 patients (0.9%), of which 100 (32.6%) were fatal. The incidence of in-hospital stroke was significantly higher in patients with ST-segment–elevation myocardial infarction than in non–ST-segment myocardial infarction or unstable angina (1.3%, 0.9%, 0.5%, respectively; P<0.001). Overall, 35.5% of in-hospital strokes occurred within 6 days of hospitalization. The strongest risk factor for in-hospital nonhemorrhagic stroke was in-hospital CABG, followed by in-hospital atrial fibrillation, prev...

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