Correlations between anterior wall motion velocity of ascending aorta measured by quantitative tissue velocity image and left ventricular geometry as well as left heart function in hypertension patients.

Abstract

This study aimed to analyze the correlations between anterior wall motion velocity of ascending aorta measured by quantitative tissue velocity image (QTVI) technique and left ventricular geometry as well as left heart function to evaluate its value of clinical application. One hundred ten hypertension patients and 35 healthy controls were included, divided into left ventricular concentric remodeling group and left ventricular hypertrophy group. The QTVI technique was used to obtain the velocity curve of anterior wall of ascending aorta, the peak systolic velocity (Vs), peak velocity of early diastolic motion (Ve) and peak velocity of late diastolic motion (Va). The single-plane Simpson method was utilized to measure the left ventricular ejection fraction (EF). The QTVI method was used to obtain the index of left ventricular diastolic function (Em/Am). Compared to control group, both Vs and Ve values significantly reduced in hypertension group (P<0.05). Both Vs and Ve values were significantly negatively correlated with LVMI and RWT (P<0.01). The Va value was negatively correlated with LVMI (P<0.05). The Vs value was significantly positively correlated with EF value (P<0.01). The Ve value was significantly positively correlated with both EF and Em/Am (P<0.01). The Va value was positive correlated with Em/Am (P<0.05). The QTVI anterior wall velocity of ascending aorta could be indicator for the geometric patterns and function of left ventricle, which may provide a simple and comprehensive method for clinical assessment of hypertensive heart disease.