心肌速度阶差评价无并发症糖尿病患者左心室功能

目的 应用心肌速度分布图(MVP)测定心肌运动速度,计算心肌速度阶差(MVG),评价无临床并发症糖尿病患者左心室功能.方法 无并发症2型糖尿病患者30例,对照组30例.常规超声心动图检测左室结构及二尖瓣血流E/A、左室射血分数(LVEF)、左室短轴缩短率(LVFS),并计算左室质量指数(LVMI);采用多普勒组织成像(...

Assessment of left ventricular function in diabetes mellitus patients without complications by myocardial velocity gradient

Objective To evaluate the structure and function of left ventricle in diabetes mellitus (DM) patients without complications by myocardial velocity gradient (MVG) measured by myocardial velocity profile (MVP). Methods Thirty type 2 DM patients without complications and 30 healthy volunteers as controls were enrolled. The heart structure, systolic function and diastolic function of left ventricle were measured by echocardiography and the left ventricular mass index (LVMI) was calculated. Mitral annular systolic movement (Sm) , early rapid filling phase movement ( Em) and atrial contraction movement(Am) were measured by tissue Doppler image and the left ventricular MVG at diastole and systole in subendocardium and subepicardium (MVGs,MVGd) were measured by MVP. Results The diameter of left atria and left ventricle, thickness of interventricular septum and LVMI were higher in DM group than those of control group ( P <0. 05 or P <0. 01) , MVGs, MVGd, and Em were lower in DM group than those of control group( P <0. 05 or P <0. 01). There were no significant differences on E/A, Em/Am and E/Em between two groups. In addition, there were also no significant differences on Sm,left ventricular ejection fraction and left ventricular fraction shortening between two groups. Conclusions Structure and function of left ventricle have changed in patients of DM without complications. MVG measured by MVP is an accurate and sensitive index to assess left ventricular systolic and diastolic function.