Abstract：ObjectiveTo investigate clinical significance of spectral echocardiography in evaluating global right ventricular systolic function in patients with dilated cardiomyopathy (DCM). MethodsForty patients with DCM were selected as the observation group, and they were divided into the dilation group (18 cases) and the nondilation group (22 cases) according to whether the right ventricular internal diameter was dilated or not. Forty healthy people who underwent physical examination in the same period were selected as the control group. Parameters of global right ventricular systolic function , including right ventricular ejection fraction (RVEF), systolic pulmonary artery pressure（SPAP）, the maximum rate of right ventricular pressure rise (dP/dtmax), E/A and Tei index in both groups were detected by spectral echocardiography. The parameters of observation group before and after treatmen were compared with the control group. ResultsThe detection results showed that the SPAP, dP/dtmax and Tei index of patients with DCM in the observation group were significantly larger than those of the control group, and those of the dilation group were larger than the nondilation group. The RVEF and E/A of observation group were significantly lower than those of the control group, and those of the dilation group were smaller than the nondilation group (all P<0.05). The dP/dtmax and Tei index of patients with DCM were significantly decreased while RVEF and E/A were significantly increased after treatment (P<0.05). There was no significant improvement of SPAP after treatment (P>0.05). ConclusionSpectral echocardiography is simple to operate, safe and reliable in evaluating global right ventricular systolic function in patients with DCM. It can provide reliable bases for diagnosis.
王霞. 频谱超声心动图评价扩张型心肌病右心室整体收缩功能的临床意义[J]. 实用心电学杂志, 2020, 29(2): 101-103.
Wang Xia. Clinical significance of spectral echocardiography in evaluating global right ventricular systolic function in patients with dilated cardiomyopathy. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2020, 29(2): 101-103.
