无创性压力-应变环评估不同心率青年力量型运动员左心室收缩功能的价值  

The valve of non-invasive pressure-strain loop in evaluating left ventricular systolic function of young strength athletes with different heart rates

作　　者：李鹏歌 李莉锦 孙梦娇[1] 李真 刘梦梦 滑少华[1] Li Pengge;Li Lijin;Sun Mengjiao;Li Zhen;Liu Mengmeng;Hua Shaohua(Department of Ultrasound,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450000,China)

机构地区：[1]郑州大学第一附属医院超声科,450000

出　　处：《中华超声影像学杂志》2021年第8期680-684,共5页Chinese Journal of Ultrasonography

基　　金：河南省自然科学基金项目(202300410466);河南省医学科技攻关计划省部共建重点项目(SBGJ202002059);国家临床重点专科建设项目([2013]544号)。

摘　　要：目的探讨无创性压力-应变环(PSL)评估不同心率青年力量型运动员左室收缩功能的应用价值。方法于2018年10月收集青年摔跤运动员35例,根据静息状态心率快慢分为运动员1组20例(心率40-59次/min)和运动员2组15例(心率60-80次/min),选取同期体检健康青年30例(对照组)。利用无创性PSL获得三组左室心肌应变及做功参数:左室心肌整体纵向应变(GLS)、纵向峰值应变离散度(PSD)、左室整体心肌做功指数(GWI)、整体心肌有用功(GCW)、整体心肌无用功(GWW)及整体心肌做功效率(GWE),比较三组间上述参数的差异。结果与对照组比较,运动员1组、2组GWE减低,PSD、GWW增加,运动员1组GWI、GCW减低,差异有统计学意义(均P<0.05);与运动员1组比较,运动员2组PSD、GWI、GCW、GWW增加,GWE减低,差异有统计学意义(均P<0.05)。结论PSL能定量评估不同心率青年力量型运动员左室心肌做功,进而评价心率对运动员左室收缩功能的影响。Objective To explore the application value of non-invasive pressure-strain loop(PSL)in evaluating left ventricular systolic function of young strength athletes with different heart rates.Methods Thirty-five young wrestlers were collected randomly and divided into 2 groups according to the heart rate:group 1(heart rate of 40-59 beats/min,n=20)and group 2(heart rate of 60-80 beats/min,n=15).Thirty healthy young males were selected as the control group at the same period.Non-invasive PSL was used to obtain left ventricular global longitudinal strain(GLS),longitudinal peak strain dispersion(PSD),global myocardial work index(GWI),global constructive myocardial work(GCW),global wasted myocardial work(GWW)and global myocardial work efficiency(GWE)in three groups,and the differences between them were measured.Results Compared with the control group,GWE in the athlete group 1 and 2 reduced,PSD,GWW were increased,and GWI,GCW in the athlete group 1 were decreased,and all differences were statistically significant(all P<0.05).Compared with the athlete group 1,PSD,GWI,GCW,GWW in the athlete group 2 increased and GWE was reduced(all P<0.05).Conclusions PSL can quantitatively evaluate the left ventricular myocardial work of young strength athletes with different heart rates,and then assess the effect of heart rates on the left ventricular systolic function of athletes.

关 键 词：超声心动描记术 压力-应变环 心肌做功 运动员 心率 

分 类 号：R541[医药卫生—心血管疾病]