Exercise tolerance and left ventricular diastolic function during exercise in patients with diastolic heart failure

使用新的超声心动图技术对正常受试者在运动中的心功能进行评估。获得胸骨旁切面的所有数据集。10名受试者中有8名分析了来自心尖切面的散斑跟踪成像数据。在运动过程中，心输出量和E/E‘随运动负荷的增加而增加。另一方面，每搏出血量和整体收缩压力并不随运动而改变。运动时的心功能是可以评估的，具有临床应用的潜力。

Cardiac performance during exercise was evaluated using novel echocardiographic techniques in normal subjects. All datasets from parasternal views were obtained. Speckle tracking imaging datasets from apical views were analyzed in 8 of 10 subjects. During exercise, cardiac output and E/e' increased with exercise stress. On the other hand, stroke volume and global systolic strain did not change with exercise. Cardiac performance during exercise can be evaluated, and has potential for clinical applications.