摘要
心室复极化时程作为反映心室除极和复极时间的重要的电生理参数 ,越来越受到关注。它受到许多生理和病理因素的影响 ,在许多心脏疾病中它表现出明显的特征。我们研究了正常人不同年龄组以及正常人和心脏病人心室复极化时程变异 (Repolarization Duration Variability,RDV)和心室复极化时程对 RR间期 (RTm对 RR)依赖性的变化规律。从我们的实验结果看到 RDV和 RTm对 RR依赖性指标均与年龄有关 ,心脏病人 RTm/ RR斜率、频域相干性和 CV比以及 RDV与正常人比较均有非常显著的差异。RDV和 RTm对
As an important electrophysiological parameter that reflects cardiac depolarization and repolarization process, ventricular repolarization duration has been drawing growing attention. It is influenced by several physiological and pathological factors and associated with several cardiac diseases. We studied repolarization duration variability (RDV) and dependence of RTm/RR among normal subjects of different age groups, as well as between normal subjects and subjects with cardiac diseases. It was found that RDV and dependence of RTm/RR are related to age. There are significant differences in the slope of RTm/RR, coherence, CV ratio and RDV between normal subjects and subjects with cardiac diseases. The RDV and dependence of RTm/RR can be employed in providing a more useful evaluation of cardiac disease and function in clinical care.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2000年第1期71-74,共4页
Journal of Biomedical Engineering
基金
上海市教委科学技术基金资助项目!(95B16)
关键词
心室复极
时程变异
RR间期
电生理
Ventricular repolarization duration variability
Dependence of RTm/RR CV ratio Coherence
