急性冠脉综合征患者心率变异性特点及放松功干预的影响

Characteristics of Heart Rate Variability of Acute Coronary Syndrome and Its Intervention by Relaxing Exercises

目的观察急性冠脉综合征(ACS)患者心率变异性(HRV)特点及放松功对其影响。方法60例ACS患者随机分为放松功组和对照组,各30例。在常规西药治疗基础上,放松功组给予2周放松功训练,对照组在相应时间静卧休息。观察HRV时域指标变化及心率、血压和室性心律失常情况。结果两组患者都存在HRV降低;放松功能不同程度地提高ACS患者的HRV(P<0.01,P<0.05),减慢心率、降低血压(P<0.01),减少室性心律失常发生(P<0.01,P<0.05)。结论ACS患者存在HRV降低,放松功能不同程度地提高其HRV,减慢心率、降低血压,并能减少室性心律失常的发生。

Objective To study the characteristics of heart rate variability （HRV） in the patients with acute coronary syndrome （ACS） and its intervention by relaxing exercises. Methods Sixty-three subjects were randomized into two groups： treatment group in which 32 cases were treated by regular modality and relaxing exercises and control group in which 31 cases were treated by regular modality. The HRV indexes, heart rate, blood pressure and ventricular arrhythmia were observed. Results The HRV decreased in the patients with ACS; after treatment by relaxing exercises, the HRV indexes in treatment group significantly increased（P〈0.01,P〈0.05）： the heart rate slowed（P〈0.01） and the blood pressure decreased （P〈0.01）; ventricular arrhythmia happened less （P〈0.01,P〈0.05）. Conclusions The HRV decreased in the patients with ACS, but relaxing exercises can improve HRV, reduce heart rate and blood pressure, and decrease ventricular arrhythmia.