Caplan L R, D'Cruz I, Hier D B, Reddy H, Shah S
Ann Neurol. 1986 Feb;19(2):158-61. doi: 10.1002/ana.410190208.
M-mode and two-dimensional echocardiographic images were reviewed retrospectively in 20 patients with atrial fibrillation and ischemic stroke with no known valvular disease and in 20 patients with atrial fibrillation without known stroke. Left atrial size was measured and analyzed without knowledge of patient grouping. Two-dimensional echocardiography showed that 90% of the stroke patients had left atrial enlargement compared with only 20% in the nonstroke group. This finding suggests that left atrial enlargement may convey additional stroke risk in patients with atrial fibrillation.
对20例患有房颤且无已知瓣膜病的缺血性卒中患者以及20例患有房颤但无已知卒中的患者的M型和二维超声心动图图像进行了回顾性分析。在不知道患者分组的情况下测量并分析左心房大小。二维超声心动图显示，90%的卒中患者存在左心房扩大，而在无卒中组中这一比例仅为20%。这一发现表明，左心房扩大可能会给房颤患者带来额外的卒中风险。
