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目的：探究超声心电图对高血压性左心室肥厚和肥厚性心肌病临床诊断价值。方法选取45例我院收治的高血压性左心室肥厚患者，作为LVH组；选同一时间内的肥厚性心肌病中的45例，作为HCM组；另选取自愿参与研究的正常人群45例为参考组；观察三组超声心电图结果。结果参考组舒张末期室间隔厚（LVSTd）、LVSTd/舒张末期左室后壁厚（LVPWTd）、左室心肌重量（LVmass）、明显优于HCM组、LVH组，差异有统计学意义（P＜0.05），同时LVH组与HCM组的心动图各项指标相对比，差异有统计学意义（P＜0.05）。结论在临床高血压性左心室肥厚与肥厚性心肌病的临床诊断中，超声心电图存在显著地临床诊断价值，值得推广应用。“,”Objective To investigate the diagnostic value of echocardiography in hypertensive left ventricular hypertrophy and hypertrophic cardiomyopathy. Methods Forty-five patients with hypertensive left ventricular hypertrophy admitted to our hospital were selected as LVH group. Forty-five hypertrophic cardiomyopathy patients at the same time were selected as HCM group. Forty-five healthy volunteers were selected as reference group Group; observe the results of three groups of ultrasonic ECG. Results LVSDd, LVPWTd and LVmass were significantly higher than those of HCM and LVH groups (P<0.05), and the difference was statistically significant (P< 0.05). There was significant difference between LVH group and HCM group (P<0.05). Conclusion In the clinical diagnosis of hypertensive left ventricular hypertrophy and hypertrophic cardiomyopathy, Echocardiography has significant clinical diagnostic value and is worthy of popularization and application.