超声分层应变技术对青年男性力量型运动员左心室收缩功能的研究  

Assessment of left ventricular systolic function in young strength athletes using ultrasonic layer-specific strain technology

作　　者：李真 滑少华[1] 李莉锦 陈迎春 李鹏歌 张一 刘松岩 Li Zhen;Hua Shaohua;Li Lijin;Chen Yingchun;Li Pengge;Zhang Yi;Liu Songyan(Department of Ultrasound,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450000,China;GE Healthcare Ultrasound Clinic Education Team,Zhengzhou 450000,China)

机构地区：[1]郑州大学第一附属医院超声科,450000 [2]通用电气医疗集团超声临床教育部,郑州450000

出　　处：《中华超声影像学杂志》2020年第5期394-398,共5页Chinese Journal of Ultrasonography

基　　金：国家临床重点专科建设项目([2013]544号);河南省医学科技攻关计划(201702045)。

摘　　要：目的:探讨分层应变技术评估青年男性力量型运动员左室收缩功能的应用价值。方法:于2018年10月随机挑选河南省重竞技运动管理中心专业青年男性摔跤运动员30例(运动员组)及年龄与之匹配的健康青年男性30例(对照组),采用传统超声心动图与分层应变技术相结合,分别测量其心率(HR)、左室舒张末期内径(LVDd)、室间隔厚度(IVSTd)与左室后壁厚度(PWTd),并计算相对室壁厚度(RWT);左室舒张末期(EDVI)及收缩末期容积指数(ESVI)、射血分数(LVEF)、每搏量指数(SVI)、心脏指数(CI)、球形指数(SPI);左室壁心内膜下、中层及心外膜下心肌的整体纵向应变(GLSendo、GLSmid、GLSepi)、峰值应变离散度(PSD),并计算出整体心肌纵向应变跨壁阶差(ΔLS),分析两组数据的差异,绘制ROC曲线,分析比较分层应变参数预测运动员左室收缩功能或同步性的检验效能。结果:运动员组LVDd、PWTd、IVSTd、RWT、SPI、EDVI、ESVI、SVI高于对照组,HR、GLSendo、GLSmid、GLSepi、ΔLS低于对照组,差异有统计学意义(均P<0.05);两组LVEF、CI、PSD差异无统计学意义(均P>0.05)。GLSendo、GLSmid、GLSepi预测运动员左室收缩功能的ROC曲线下面积分别为0.753、0.747、0.726,最佳分界值分别为-22.34%、-19.95%、-17.35%。结论:长期高强度运动可导致运动员左室收缩功能发生亚临床改变,分层应变能够更准确、具体地评估运动员左室收缩功能变化。在各GLS参数中,GLSendo为检验运动员左室收缩功能的最优参数。Objective To explore the application value of ultrasonic layer-specific strain technology in evaluating left ventricular systolic function in young male strength athletes.Methods In October 2018,30 professional young male wrestlers from Henan Provincial Heavy Sports Management Center(athlete group)and 30 healthy young males matched with age(control group)were randomly selected.Using traditional echocardiography combined with stratified strain technique,heart rate(HR),left ventricular end-diastolic diameter(LVDd),interventricular septal thickness on diastole(IVSTd),postwall thickness on diastole(PWTd),relative wall thickness(RWT),end diastolic volume index(EDVI),end systolic volume index(ESVI),ejection fraction(LVEF),stroke volume index(SVI),cardiac index(CI),spherical index(SPI),endocardial myocardial global longitudinal strain(GLSendo),mid-myocardial global longitudinal strain(GLSmid),epicardial myocardial global longitudinal strain(GLSepi),peak strain dispersion(PSD)and whole myocardial longitudinal strain cross-wall difference(ΔLS)were measured respectively.The differences between the two sets of data were analyzed.ROC curves were plotted to analyze and compare the stratified strain parameters performance to predict left ventricular systolic function or synchrony in athletes.Results The values of LVDd,PWTd,IVSTd,RWT,SPI,EDVI,ESVI and SVI in athelete group were higher than those of the control group.And the values of HR,GLSendo,GLSmid,GLSepi andΔLS were lower than those of the control group.The differences were statistically significant(all P<0.05).There was no significant difference in LVEF,CI and PSD between the two groups(all P>0.05).The areas under the ROC curve of GLSendo,GLSmid and GLSepi for athletes′left ventricular systolic function were 0.753,0.747 and 0.726,respectively,and the optimal cut-off values were-22.34%,-19.95%,-17.35%,respectively.Conclusions Long-term high-intensity exercise can lead to subclinical changes in left ventricular systolic function,and ultrasonic layer-specific strain techn

关 键 词：超声心动描记术 运动员 心室功能 左 心肌分层应变 

分 类 号：R540.45[医药卫生—心血管疾病] R87[医药卫生—内科学]