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用同步快速记录ECG,PCG和CPT的方法,测定了210名正常人(男110名,女100名)的心脏收缩时间间期(STI),并分析其与心率、性别和年龄的相关。结果如下:1.Q-S_2,LVET,PEP与心率呈负相关非常显著,ICT和Q-S_1与心率相关较小,这两个指标不必与心率相校正。2.Q-S_2,LVET,PEP,Q_S_1与PEP/LVET的性别差异显著,而ICT/LVET和ICT不存在性别差异。3.Q-S_2,LVET,ICT与ICT/LVET存在着年龄的影响,PEP,Q-S_1与PEP/LVET不存在年龄差异,与心率相校正后,年龄对STI的影响可以不予考虑. 为了与心率、性别相校正,分别求出了男、女组与心率有关的直线回归方程式,以不同的心率代入,所得的数值再加、减1.645倍标准估计误差作为正常值的上限或下限,并据此制作了PEP,LVET,PEP/LVET的正常数值表。 为了在实际工作中便于记忆和掌握,在中等心率时制定一个大致的正常范围是有用的。我们提出ICT,Q-S_1,PEP,LVET,Q-S_2的正常值分别为25—45ms,60—80ms,80-110ms,260—340ms和340—440ms,ICT/LVET比值为0.09-0.15,而PEP/LVET比值在男性为0.29—0.34,女性为0.30—0.35,但在心率过快或过慢时仍需校正。从判定左心室功能角度出发,ICT,Q—S_1,PEP,ICT/LVET和PEP/LVET着重记住其上限,Q-S_2和LVET着重记住下限。超过上限或低于下限应视为异常,超过正?
The cardiac systolic time (STI) was measured in 210 normal subjects (110 males and 100 females) by rapid simultaneous recording of ECG, PCG and CPT, and their correlation with heart rate, sex and age were analyzed. The results are as follows: 1.Q-S_2, LVET, PEP and heart rate was negatively correlated significantly, ICT and Q-S_1 and heart rate was small, these two indicators do not have to phase correction with the heart rate. Gender differences in Q-S_2, LVET, PEP, Q_S_1 and PEP / LVET were significant, while there were no gender differences in ICT / LVET and ICT. There are age differences between Q-S_2, LVET, ICT and ICT / LVET. There is no difference in age between PEP, Q-S_1 and PEP / LVET, and the effect of age on STI after correction with heart rate can not be considered And the heart rate, gender phase correction, were obtained for men and women and heart rate-related linear regression equation, with different heart rate substitution, the resulting value plus, minus 1.645 times the standard error as the normal value of the upper or lower limit, and Based on this, PEP, LVET, PEP / LVET normal value tables were produced. In order to be easy to remember and grasp in practice, it is useful to have a general normal range at moderate heart rate. We propose that the normal values of ICT, Q-S_1, PEP, LVET and Q-S_2 are 25-45 ms, 60-80 ms, 80-110 ms, 260-340 ms and 340-440 ms, respectively, with ICT / LVET ratios of 0.09-0.15 The PEP / LVET ratio is 0.29-0.34 for males and 0.30-0.35 for females, but correction is still needed if the heart rate is too fast or too slow. From the perspective of determining left ventricular function, ICT, Q-S_1, PEP, ICT / LVET and PEP / LVET focus on the upper limit, and Q-S_2 and LVET focus on the lower limit. More than the upper limit or below the lower limit should be regarded as abnormal, more than positive?