冠心病患者的心率变异性分析

目的探讨冠心病患者心率变异性的变化。方法选择冠心病患者70例，作为冠心病组，选择无冠心病的健康人50例，作为对照组，进行动态心电图检查，分别测定时域指标（SDNN、SDANN、RMSSD、PNN50）和频域指标（TP、LF、HF），进行心率变异性变化的参数分析。结果冠心病组的指标SDNN、RMSSD、PNN50、TP、LF、HF均显著低于健康组，P〈0．01，有统计学意义。结论冠心病患者的心率变异性时域和频域指标均明显减低，反映自主神经调节心脏平衡的功能减低，易发生严重的心血管事件。

Analysis of heart rate variability in patients with coronary artery disease

Objective To investigate the changes of heart rate variability in patients with coronary heart disease. Methods 70 cases of patients with coronary heart disease, as the coronary heart disease group, 50 healthy people without coronary artery disease, as the control group, the dynamic electrocardiogram inspection, the time domain indexes were measured （SDNN, SDANN, RMSSD, PNNS0） and freqhency index （TP, LF, HF）, parameter analysis of the changes of heart rate variability. Results Coronary heart disease group, SDNN, RMSSD, PNNSO, TP, LF,HF were significantly lower than in the healthy group, p〈O.Ol ,there was statistical significance. Conclusions Coronary heart disease heart rate variability in the time domain and iequency domain indices were significantly lower, reflecting autonomic nervous regulation of cardiac function of balance is reduced, prone to serious cardiovascular events.