冠心病患者的心率变异性分析  

An Analysis of Heart Rate Variability in Patients with Coronary Artery Disease

作　　者：李玉梅[1] 丁瑞华[2] 陈树兰[3] 

机构地区：[1]宁夏医学院附属医院干部病房,银川750004 [2]宁夏医学院附属医院心电图室,银川750004 [3]宁夏医学院心血管研究所,银川750004

出　　处：《宁夏医学院学报》2000年第4期237-238,247,共3页Journal of Ningxia Medical College

摘　　要：目的 :心率变异性 (HRV)分析是反映支配心脏的自主神经活动的无创性指标。本研究目的是研究冠心病人HRV的改变。方法 :通过HRV时域分析方法 ,研究了 2 5例正常人 ,4 0例冠心病病人的心率变异特征。结果 :冠心病患者HRV的窦性心博间标准差 (SDNN)和HRV三角指数 (HRV指数 )明显低于正常人 ,两组之HRV均有明显的昼夜节律。结论 :冠心病人的HRV降低 ,提示支配心脏的自主神经功能不平衡。Objective:HRV analysis is a noninvasive index of assessing autonomic nervous system control of cardiac function.The aim of the present study was to investigate the alterations of HRV in patients with coronary heart disease (CHD).Methods:The population involved in the study included 40 patients with CHD and 24 age-matched controls with no evidence of heart disease.HRV was assessed by calculation of indices based on statistical operation on RR intervals (time domain analysis) Results:As a result of the study it was found that in patients with CHD, SDNN and HRV triangle index were reduced significantly than that in healthy persons.HRV indices showed obvious circadian variation in both groups.Conclusion:Reduction of HRV in patients with CHD suggests that they have an imbalance of autonomic control over heart,and they have a higher risk for cardiac sudden death thereby.

关 键 词：心率变异性 冠心病 自主神经调节 时域分析 

分 类 号：R541.4[医药卫生—心血管疾病] R540.41[医药卫生—内科学]