彩色多普勒超声评价超重人群心脏结构、功能及颈动脉内-中膜厚度  

Evaluation of cardiac structure,function and carotid artery intima-media thickness in overweight people with color Doppler ultrasonography

作　　者：薛甜[1] 朱向明[1] 李国杰[1] 张青陵[1] 吴晶晶[1] 

机构地区：[1]皖南医学院弋矶山医院超声医学科,安徽芜湖241001

出　　处：《中国医学影像技术》2011年第3期548-551,共4页Chinese Journal of Medical Imaging Technology

基　　金：2009年安徽省卫生厅立项资助青年课题(09B102);2010年安徽省卫生厅医学科研重点项目(2010A012)

摘　　要：目的应用彩色多普勒超声检查观察超重对心脏结构、功能及颈动脉内-中膜厚度(I MT)的影响。方法根据体质量指数(BMI)将100名体检者分为正常对照组(BMI<25 kg/m2,47名)和超重组(BMI≥25 kg/m2,53名)。对两组均行彩色多普勒超声心动图及颈动脉超声检查,分析超重对心脏结构、功能及颈动脉I MT的影响。结果与正常对照组相比,超重组左心室舒张末期内径(LVDD)、左心室舒张末期室间隔厚度(IVST)、左心室后壁舒张末期厚度(LVPWT)、左心室质量(LVM)、左心室质量指数(LVMI)、二尖瓣舒张晚期峰值血流速度(A峰)、颈动脉I MT增高,二尖瓣舒张早期峰值血流速度(E峰)和E/A降低,差异均有统计学意义(P均<0.05)。BMI与LVDD、IVST、LVPWT、LVM、LVMI、A峰、颈动脉I MT均呈显著正相关(P均<0.05),与E/A、E峰均呈负相关(P均<0.01)。结论超声检查发现无任何临床症状的超重人群可发生左心室增大、舒张功能减退以及颈动脉I MT。Objective To investigate the influence of overweight on cardiovascular system with color Doppler ultrasonography.Methods Totally 100 people accepted health examination were included and classified into 2 groups according to body mass index（BMI）： Overweight group（BMI≥25 kg/m2,n=53） and control group（BMI25 kg/m2,n=47）,both underwent color Doppler ultrasonography.The heart structure,heart function and carotid artery intima-media thickness（IMT） of them were compared.Results Compared with control group,left ventricular diameter in end diastole（LVDD）,interventricular septum thickness（IVST）,left ventricular posterior wall thickness（LVPWT）,left ventricular mass（LVM）,left ventricular mass index（LVMI）,peak A velocity（A） and IMT of overweight group all increased,peak E velocity（E） and E/A both decreased（all P0.05）.In all of 100 people,LVDD,IVST,LVPWT,LVM,LVMI,A and IMT were all positively correlated with BMI,E/A and E were both negatively correlated with BMI.Conclusion Ultrasound examination showed that injury of left ventricle structure,relaxing function and intima-media thickness can occur in overweight without clinical symptoms.

关 键 词：超重 超声心动描记术 心室功能 左 

分 类 号：R540.45[医药卫生—心血管疾病] R331.31[医药卫生—内科学]