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目的 :研究心梗后患者的左室重构和心功能变化。方法 :应用多普勒超声心动图研究 6 6例心梗后患者 (心梗组 )和 6 6例无器质性心脏病者 (对照组 )的左室重构和心功能变化。结果 :心梗组LVDd、LVDs较对照组明显增大 (P <0 .0 5 )而CI、LVEF显著降低 (P <0 .0 1) ,DT、IVRT延长 (P <0 .0 1)。E A比值减少。结论 :梗塞膨展和心室扩张是心梗后左室重构的主要病理过程 ,左室重构对心脏收缩和舒张功能产生不良影响 ,多普勒超声心动图对心梗后左室重构和心功能的分析有重要的意义
Objective: To study left ventricular remodeling and cardiac function in patients after myocardial infarction. Methods: Doppler echocardiography was used to study the changes of left ventricular remodeling and cardiac function in 66 patients with myocardial infarction (MI group) and 66 non-organic heart disease patients (control group). Results: Compared with the control group, the LVDd and LVDs in myocardial infarction group were significantly increased (P <0.05), while the levels of CI, LVEF were significantly decreased (P <0.01), and DT and IVRT were prolonged (P <0.01). E A ratio decreased. Conclusions: Infarct expansion and ventricular dilatation are the main pathological processes of left ventricular remodeling after myocardial infarction. Left ventricular remodeling has adverse effects on systolic and diastolic function. Doppler echocardiography Heart function analysis is of great significance