Abstract
Left ventricular diastolic dysfunction can be detected in the early stage of essential hypertension. Previous studies have used Ganau configuration classification with the European population criterion rather than Chinese population. In this study, we evaluate the energy loss and vortex circulation in diastolic left ventricle in patients with essential hypertension under the criterion of Chinese population and explore the relationship between intracardiac blood flow change and diastolic function. Collect the structural and hemodynamic information in left ventricular diastolic period by echocardiography. Measure the energy loss and vortex circulation in left ventricle at different phases by VFM on the offline station. 63 patients with essential hypertension and 23 volunteers as controls are included. Compared to the controls, the energy loss and vortex circulation is significantly increased in hypertension which has a correlation with the diastolic function. The subgroups under the European criterion which find no significant difference in energy loss, have significant difference in ratio from that of Chinese criterion. The study shows the different results under two criterions and indicates the Chinese criterion can acquire a better reflection of the left ventricular energy loss in hypertension patients. VFM technology can be used to analyze the left ventricular flow in patients with hypertension, providing a new method to evaluate diastolic function.
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