二维M型和多普勒超声心动图对高血压不同左室构型心功能的研究

Study of the cardiac function of hypertersion patients with differential patterns of the left verticle by 2-DE,M-mode and Doppler echocardiography

目的 :进一步探讨高血压病左室构型与心功能及临床关系。方法 :应用二维、M型和多普勒超声心动图对原发性高血压患者 1 35例进行检测 ,分别测量舒张期室间隔 (IVSd)和左室后壁 (LVPWd)厚度、左室内径 (LVd)。根据由此计算出的左室重量指数 (LVMI)和室壁相对厚度(RWT) ,将高血压患者左室分为四种构型 ,并测量EF、FS、左房内径 (LAd)和升主动脉内径 (AAO)、二尖瓣口舒张期E峰、A峰速度、舒张早期减速时间 (DT)、等容舒张期时间 (IVRT)等 ,并进行分析。结果 :高血压患者早期有左房扩大 ,E/A值下降 ,向心性肥厚的室间隔和左室后壁增厚最明显 ,E/A值和IVRT、DT明显减小和延长 ,舒张功能下降明显。离心性肥厚虽然室壁增厚有所减轻 ,但左心重量指数 (LVMI)最大 ,左室扩大明显 ,EF、FS最低 ,收缩和舒张心功能均下降明显。结论 :高血压病左室构型与临床关系紧密。超声心动图对左室构型的区分 。

Objective:To explore the ralations between lefe ventricular geometry of hypertension patients and cardiac function and clinic.Methods:135 patients with primary hypertengion were detected by 2-DE,M-wode echocardiogram and Doppler echcardiogram.IVSTd,LVPWT and LVD were measured respectively.LVWI and RWT were calculated,according to them,the left vertricular geometry of hypertension patients was diveded into four forms,EF,FS,LAd,(AAO),mitral tip diastolic of E peak velocity,velocity of A peak,deceleration time of protodiastolic (PDT),isochoric diastolic phase time (IDPT) and so on were analysed.Results:It occurred in early on hypertension patients with left auricular enlargement,titre of E/A dropped.Interventricular septum of concentric hypertrophy and posterior wall of left vertricle thickened clearly.Titre of E/A,IVRT and DT were decreased and prolonged.Diastolic function dropped obviously.Although thickness of ventricular wall was shorted in patients with concentric hypertrophy,weight index of left ventricle is the biggest,the left vertricle enlarged distinctly.EF,FS is the lowest.Function of contractile and diastolization fell.Conclusions:The left ventricular geometry of hypertension had close relation with clinic,echcardiogram is rital value on distinguishing left ventricular geometry,diagnosis and cure for hypertension.