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近年来无创伤性心功能检查技术蓬勃发展,用心电机械图测量心室收缩时间间期(STI)是一种间接判断左室功能较为灵敏的方法。在老年人中心血管系统疾病所占比例甚多,但有关老年人的心血管参数的测定尚未见系统的报道。为此,我们用多导生理记录仪同步记录心电图(ECG)、心音图(PCG)和颈动脉搏动图(CPT)的方法,测定了312例60岁以上健康老年人的心脏收缩时间间期,得出老年人STI各值的正常范围。并用同样方法测定了106例40岁以上健康青壮年的STI,以与老年人者进行对比。结果表明:在STI各值中,QS_2、LVET和PWTT的均值以及I/F比值,
In recent years, noninvasive cardiopulmonary bypass technique has developed rapidly. The measurement of ventricular contraction time interval (STI) by electrocardiogram is a sensitive method to indirectly judge left ventricular function. In the elderly cardiovascular system occupies a large proportion of disease, but the cardiovascular parameters of the elderly has not been reported in the system. For this purpose, we measured systolic time of 312 healthy people over the age of 60 with simultaneous recording of electrocardiogram (ECG), phonocardiogram (PCG) and carotid pulsation diagram (CPT) Obtain the normal range of STI values for the elderly. The same method was used to determine the STI of 106 healthy young adults over the age of 40 to compare with the elderly. The results showed that the mean values of QS_2, LVET and PWTT, as well as the ratio of I / F,