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目的:探讨冠心病充血性心力衰竭患者的心率变异性情况。方法:本研究选取了2012年4月至2014年4月我院收治的90例冠心病充血性心力衰竭患者作为研究对象,根据患者的左室射血分数将患者分为两组,A组患者45例(LEVF>35%),B组患者45例(LEVF<35%),并选择45例健康体检患者作为对照组,观察三组患者的心率变异性情况。结果:与对照组相比,A、B组患者的SDNN、SDANN、rMSSD、PNN 50心率变异性参数明显降低(P<0.05)。与A组相比,B组患者的SDNN、SDANN、rMSSD、PNN 50心率变异性参数明显降低(P<0.05)。结论:心率变异性参数与冠心病充血性心力衰竭患者的病情严重程度相关,可作为心衰程度的重要判断指标。
Objective: To investigate the heart rate variability in patients with coronary heart disease with congestive heart failure. Methods: In this study, 90 patients with congestive heart failure treated in our hospital from April 2012 to April 2014 were selected as study subjects. Patients were divided into two groups according to left ventricular ejection fraction. Patients in group A 45 cases (LEVF> 35%), 45 cases in group B (LEVF <35%), and 45 healthy subjects were selected as the control group to observe the heart rate variability in the three groups. Results: Compared with the control group, the parameters of heart rate variability of SDNN, SDANN, rMSSD and PNN 50 in group A and B were significantly decreased (P <0.05). Compared with group A, the parameters of heart rate variability of SDNN, SDANN, rMSSD and PNN 50 in group B were significantly decreased (P <0.05). CONCLUSION: The heart rate variability parameters are correlated with the severity of patients with coronary heart disease complicated with congestive heart failure, which can be used as an important index to judge the degree of heart failure.