非瓣膜病房颤并左房血栓患者的TEE研究

本文研究经食管超声心动图检查的两组慢性非瓣膜病房颤患者，Ａ组为检出左房或左心耳血栓者，２４例；Ｂ组为无左房或左心耳血栓者，２４例。发现与Ｂ组患者相比，Ａ组的左房自发超声显影现象明显增高，而左房有左心耳内血流速度明显减低。说明房颤而左房内血汉速度明显减低者，局部血流淤滞明显，是房内血栓形成的预示因子。

TEE Study in Patients with Nonvalvular Atrial Fibrillation and Left Atrial Thrombus

Two groups of patients with nonvalvular atrial fibrillation were estimated with trans-esophageal echocardiography,group A composed 24 case with left atrial thrombus, group B also 24 cases but without left atrital thrombus. We found that left atrial spontaneous echo contrast was much more often detected in group A. and that velocities of left atrium and left appendage in group A were much lower than in group B.These data suggested that low velocity in left atrium and left appendage may result in local blood stasis and there by pnecipitate thrombus in left atrium.