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

在正常受试者中使用新的超声心动图技术评价运动期间的心脏性能。获得胸骨旁视图的所有数据集。在10名受试者中的8名中分析了心尖视图的斑点追踪成像数据集。运动时心输出量和E/e'随运动负荷增加而增加。另一方面，每搏输出量和整体收缩期应变不随运动而改变。运动时的心脏性能可以评估，并具有潜在的临床应用。

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.