Ventricular Dynamics in Atrial Fibrillation
Ventricular Dynamics in Atrial Fibrillation
复制标题
心房颤动的心室动力学
作者：
H. Dodge;F. Kirkham;Clara V. King
房颤期间存在心室率、舒张末期容积、舒张末期压、动脉压或心室射血阻力的搏动变化。这些变量对人类左心室动力学的影响已通过研究心房颤动患者的单次搏动序列来探讨。根据左心边界心电图确定了左心室容积变化指标。左心室压力已在手术或经支气管技术测量。这些研究为房颤期间左心室的血流动力学提供了更好的理解，并展示了研究人类左心室功能的另一种方法。
During atrial fibrillation there are beat-to-beat changes of ventricular rate, end-diastolic volume, end-diastolic pressure, and arterial pressure or resistance to ventricular ejection. The effect of these variables on left ventricular dynamics in man has been approached by studying single sequences of beats in patients with atrial fibrillation. An index of changes of left ventricular volume has been determined from the electrokymogram of left cardiac border. Left ventricular pressures have been measured at surgery or by the transbronchial technic. These studies provide a better understanding of the hemodynamics of the left ventricle during atrial fibrillation and demonstrate another approach to the study of left ventricular function in man.