冠状动脉病变与心率变异性的关系

Links of coronary lesions with heart rate variability

目的 研究冠心病 (CHD)患者冠状动脉不同病变程度与心率变异性 (HRV)的关系。方法 CHD组 31例 ,行选择性冠状动脉造影 (CAG)。正常对照组 2 7例。两组均行动态心电图监测 ,取得HRV时域和频域指标。结果 CHD组HRV各项指标均低于对照组 ,具有统计学意义。不同冠脉病变范围和程度HRV具有显著性差异。结论 CHD患者HRV明显下降。HRV能敏感地、定量地反映CHD患者冠状动脉病变程度。

Objective To study relationship between different coronary lesions and heart rate variability(HRV) in coronary heart disease(CHD) patients.Methods Thirty-one patients with CHD and 27 healthy controls, the patients underwent coronary angiography(CAG). All subjects were performed 24-hour ambulatory electrocardiogram to obtain the parameters of HRV , including time domain and frequency domain. Results Compared with the control groups ,the values of HRV significantly reduced in CHD patients.There were statistical differences in different vessel disease groups and narrowing disease groups. Conclusion Analysis of HRV is a sensitive and noninvasive method, it could be utilized quantitatively to reflect the severity of CHD patients.