Abstract
CHA2DS2-VASc score alone has been reported to predict 30-day risk of stroke reliably [1]. A CHA2DS2-VASc score of 0 could relatively precisely prompt truly low incidence of stroke, with an annual ischemic stroke rate of approximately 1% [2]. Besides definite echocardiographic image of left atrial thrombus (LATH), the presence of left atrial spontaneous echocardiographic contrast (LASEC) has also been widely and early used to represent severe blood stasis in left atrium or even potential LATH and high risk of thromboembolic events [3,4].
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