【摘要】心房纤颤(Atrial fibrillation，AF)是一种最常见的心律失常。AF是10%的全部脑梗死的病因以及全部心源性脑梗死(cardioembolic strokes，CES)中50%患者的病因。但并非AF患者发生的急性脑梗死皆是CES。动脉粥样硬化性脑梗死也可合并出现AF。通过一些临床特点与影像学检查可对CES的诊断提供参考。不论是CIS还是动脉粥样硬化性脑梗死，合并AF的急性脑梗死的预后皆较差。

    【关键词】心房纤颤；心源性脑梗死；病理机制；临床特征；影像学

    Analysis of the features of acute ischemic Stroke patients with atrial fibrillation

    【Abstract】Atrial fibrillation(AF) is the most common cardiac arrhythmia.AF account for about 10% of all stroke and 50% of cardioembolic strokes(CES).But not all acute infarc- tions in patients with AF are of CES. AF can be also observed in atherothrombotic infarcts.Certain clinical features and brain imaging can help to diagnose CES in acute ischemic Stroke patients with AF.AF had a negative effect on outcome ......