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本文报道住院临床诊断为扩张型心肌病(简称DCM)患者20例,应用XJY-6型超声心动图仪检测心脏解剖及左室舒张功能的改变。20例正常人作为对照。 检测结果:1.绝大多数DCM患者均显示各房室腔的扩大及左室重量增加,而以心腔扩张为主。常规X线和心电图不能区分的心脏肥厚或扩张,超声可显示出来,特别是左房扩大,有心房颤动的病人优于ECG检查。2.DCM组患者左室功能异常,超声主要显示左室后壁运动幅度、速度和左室舒张充盈容量和充盈速度的异常。表现为左室后壁运动总幅度(PWE)、左室后壁舒张期下降速度(DPWV)、快速充盈期充盈分数(RFF)、平均充盈速率(RFR/ESV)均显著低于正常组(P<0.001)。此外还显示EPSS增大、EF斜率和DE幅度明显降低(P<0.001)。
This article reports the clinical diagnosis of dilated cardiomyopathy (DCM) inpatients in 20 cases, the application of XJY-6 echocardiography to detect cardiac anatomy and left ventricular diastolic function changes. 20 normal people as a control. Test results: 1. The vast majority of patients with DCM showed the expansion of the atrioventricular cavity and left ventricular mass increase, while the heart chamber dilatation. Conventional X-ray and ECG can not distinguish between hypertrophy or dilation, ultrasound can be displayed, especially in patients with enlarged left atrial fibrillation, superior to ECG examination. 2. DCM patients with left ventricular dysfunction, ultrasound mainly shows the left ventricular posterior wall motion amplitude, velocity and left ventricular diastolic filling volume and filling rate of abnormalities. (PWE), left ventricular diastolic descent speed (DPWV), rapid filling fraction (RFF) and average filling rate (RFR / ESV) were significantly lower than those in the normal group (P <0.001). It also showed an increase in EPSS, a significant decrease in EF slope and DE amplitude (P <0.001).