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Background/Introduction Previous studies have focused on only 1 or 2 echocardiographic parameters as prognostic marker in patients with acute ischemic stroke (AIS). Purpose Various echocardiographic parameters in the same patient were systemically evaluated for their prognostic significance in AIS. Methods A total of 900 patients with AIS who underwent transthoracic echocardiography (TTE) (72.6 ± 12.0 years and 60% male) were retrospectively reviewed. Composite events including all-cause mortality, non-fatal stroke, non-fatal myocardial infarction, and coronary revascularization were assessed during clinical follow-up. Results During a median follow-up of 3.3 years (interquartile range, 0.6-5.1 years), there were 151 (16.8%) composite events. Univariable analyses showed that low left ventricular ejection fraction (LVEF) (&amp;lt; 60%), increased peak tricuspid regurgitation (TR) velocity (&amp;gt; 2.8 m/s) and aortic valve (AV) sclerosis were associated with composite events (P &amp;lt; 0.05 for each). In the multivariable analyses after controlling for potential confounders, LVEF &amp;lt; 60% (hazard ratio [HR], 1.90; 95% confidence interval [CI], 1.30-2.77; P = 0.001) and AV sclerosis (HR, 1.56; 95% CI, 1.10-2.21; P = 0.013) were independent prognostic factors associated with composite events. Multivariable analysis showed that HR for composite events gradually increased according to LVEF and AV sclerosis: HR was 2.8-fold higher in the highest-risk group than in the lowest group (P = 0.001). Conclusions In patients with AIS, LVEF &amp;lt; 60% and the presence of AV sclerosis predicts the future vascular events. Patients with AIS exhibiting reduced LVEF and AV sclerosis may benefit from aggressive secondary prevention Abstract P1348 Figure. COX plot for composite event

P1348 Impact of left ventricular ejection fraction and aortic valve sclerosis on cardiovascular outcome in patients with acute ischemic stroke