摘要
用导纳微分波测定心缩问期及心舒间期,并与阻抗法和颈动脉法比较,表明前者优于后者。以年龄、心率、身高、体重、胸围和性别等因素与心缩间期和心舒间期进行单因素和多因素相关分析,并用逐步回归建立各参数的最优回归方程。
This paper reports the study on the systolic time intervals (STIy) measured by the electrical differentiated admittance cardiogram (dy/ dt) in healthy children aged 3 to 4 years, and comparison with the STIc measured by the carotid arteriai pulse (CAP). The simultaneous recording of ECG, PCG, CAP and dy / dt were obtained with an ink-ejection four channel recorder at the paper speed of 100mm/ s. In this study, QX (TEMSy) , QB (PEPy), BX (LVETY), QB/BX (PEPy / LVETy), QZ interval BZ interval, Heather index (H. I.) and XO (IRPy) on the dy/dt and TEMSc, and TEMSc, PEPc, LVETc and PEPc/ LVETc on CAP were measured. The normal reference values and the best regression equations were established. The results show that the STIy closely correlated with the STIc have the following advantages: (1) The admittance method is simpler and more convenient for the measurement of the STI, it is especially suitable for patients with heart failure and obesity; (2) The admittance method may provide more parameters of myocardial function than the carotid method; (3) In addition, the admittance method is better than the impedance method for measuring the STI and H.I.
出处
《湖南医科大学学报》
CSCD
1989年第4期385-388,共4页
Bulletin of Hunan Medical University
关键词
心缩间期
心导纳微分图
儿童
分析
differentiated-admittance cardiogram
child
systole
factor analysis, statistical
methods
