The value of real-time three-dimensional echocardiography in evaluating left ventricular function for different degrees of heart failure

• 作者: Jin-Ping Wang Qin Wang
• 来源期刊: 海南医科大学学报（英文版）
• 年，卷（期）: 2020,（17）
• 页码范围: 47-51
• 页数: 5页
• 语种: 英文

摘要

Objective:To explore the value and feasibility of real-time three-dimensional echocardiography(RT-3DE) in evaluating left ventricular function in patients with different degrees of heart failure.Methods:The 60 heart failure patients in the case group were divided into three subgroups according to the New York Heart Association (NYHA) classification: 12 cases of cardiac function grade Ⅱ, 35 cases of cardiac function grade Ⅲ, 13 cases of cardiac function grade IV, and the other 30 cases of healthy subjects as control group. Compare the left ventricular end-diastolic volume(LVEDV), left ventricular end-systolic volume(LVESV), left ventricular ejection fraction (LVEF), and left ventricular 16, 12, and 6 segments reaching the minimum systolic volume time standard deviation standardized value (Tmsv SD％), left ventricular 16, 12 and 6 segments reaching the minimum systolic volume time standardized values of the maximum difference(Tmsv DIF％),analysis of the correlation between the above left ventricular function-related parameters and cardiac function grading.Results: (1)There were statistically significant differences in LVEDV and LVESV between each group(p<0.001). There was no statistically significant difference in LVEF between the cardiac function grade Ⅱ group and the control group,and between the grade IV group and the grade Ⅲ group(p=0.094 and 0.246). (2) compared with the control group,all parameters related to RT-3DE evaluation of left ventricular synchronization were prolonged in the case group, and the difference was statistically significant(p<0.001). The differences of Tmsv 16-SD％ and Tmsv 16-DIF％ in each subgroup of the case group were statistically significant(p<0.001). (3)LVEF was negatively correlated with NYHA classification of cardiac function(rs=-0.779, p<0.001), and LVEDV, LVESV, Tmsv 16-SD％, Tmsv 12-SD％, Tmsv 6-SD％, Tmsv 16-DIF％, Tmsv 12-DIF％, Tmsv 6-DIF％ were positively correlated with NYHA function classification,showing strong correlation(rs=0.710, 0.785, 0.885, 0.675, 0.605, 0.885, 0.695, 0.622, p<0.001), among them, Tmsv 16-SD％ and Tmsv 16-Dif％ have the highest correlation.Conclusion: RT-3DE can comprehensively evaluate the impairment of cardiac function. The measured parameters of left ventricular function are strongly correlated with cardiac function classification, which has impo-rtant application value for clinical judgment of the severity of heartfailure.