Abstract Heart rate variability was evaluated in 32 patients with unstable angapectons and 32 control subjects using 24 hour ambulatory ECG.The resuitsshowed that indexes of time-ranged analysis and frequency-ranged a...Abstract Heart rate variability was evaluated in 32 patients with unstable angapectons and 32 control subjects using 24 hour ambulatory ECG.The resuitsshowed that indexes of time-ranged analysis and frequency-ranged analysisin angina pectoris group were significantly different,compared with the controlgroup(p【0.01)This indicates disturbance in autonomic nervous activity inpatients with unstable angina展开更多
文摘Abstract Heart rate variability was evaluated in 32 patients with unstable angapectons and 32 control subjects using 24 hour ambulatory ECG.The resuitsshowed that indexes of time-ranged analysis and frequency-ranged analysisin angina pectoris group were significantly different,compared with the controlgroup(p【0.01)This indicates disturbance in autonomic nervous activity inpatients with unstable angina
文摘目的 探讨痰浊内阻型冠心病与混沌理论的相关性.方法 选择2008年3月至2010年3月本院心血管内科及中医病房住院的痰浊内阻型冠心病心绞痛患者60例（男29例,女31例）;同期本院门诊体检者70例（男32例,女38例）作为健康对照组.采用监测动态心电图中心率变异性（HRV）分析技术进行HRV分析,观察不同性别患者及健康人24 h NN间期标准差（SDNN）、5 min NN间期标准差（SDNN5）、相邻NN间期差值超过50 ms的心搏次数占NN间期总心搏次数的百分比（PNN50）、NN间期平均值的标准差（SDANN）、相邻NN间期差的平方根（RMSSD）、窦性R-R间期总个数除以R-R间期直方图高度得出的三角指数（TRIA）及夜间心率的变化.结果 痰浊内阻型冠心病组SDANN、TRIA明显低于健康对照组[SDANN（ms）：87.9±28.6比107.2±38.6,TRIA：445.5±157.6比523.1±170.4,均P〈0.01],其中以男性人群中SDANN（ms：93.8±29.1比113.7±39.4）降低较为显著,女性人群中SDNN（ms：123.5±43.6比144.3±38.2）、SDANN（ms：82.1±27.5比102.0±37.6）、TRIA（399.7±153.0比507.5±148.1）降低较为显著（P〈0.05或P〈0.01）.结论 痰浊内阻型冠心病与混沌理论存在相关性.
