非瓣膜性心房颤动患者左房直径影响因素分析

Influential Factors of Left Atrium Diamension in Patients with Nonvalvular Atrial Fibrillation

目的:探讨影响非瓣膜性心房颤动(房颤)患者左房直径的可能因素。方法:回顾我院心脏科329例非瓣膜性心房颤动患者的资料,通过线性回归模型筛选出与左房直径相关的临床及心脏超声因素。结果:经多因素分析显示非瓣膜性房颤患者左房直径与房颤持续时间、超声检查时为房颤、左室舒张末期内径和中至重度二尖瓣返流等因素相关(P<0.01)。结论:非瓣膜性房颤患者的左房直径受多种因素的影响,其中超声检查时为房颤和左室舒张末期内径两个因素的影响最明显。

Objective： The purpose of this study is to discuss the influential factors contributing to left atrium dimension （LAD） in patients with nonvalvular atrial fibrillation（AF）. Methods： Three hundred and twenty nine patients with nonvalvular AF were included in our study. Clinical and echocardiographic features correlating with LAD were evaluated by multivariate regression analyses. Results： The duration of AF, AF attacking at the time of echocardiography, left ventricular end-diastolic dimension（LVED） and mitral regurgitation were significantly correlated with the LAD in patients with nonvalvular AF （P 〈 0.01）. Conclusion： Multiple factors appear to contribute to the LAD in patients with nonvalvular AF, especially AF attacking at the time of echocardiography and LVED.