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目的研究心率减速力和连续心率减速力对慢性心力衰竭患者室性心律失常的预测作用。方法运用随机对照研究的方法,对入选患者分成心衰组和对照组,比较两组患者的心率减速力和连续心率减速力的差别。结果心衰组和对照组的心率减速力和连续心率减速力有明显差异(p<0.001)。心衰组患者发生室性心率失常的亚组分析显示心率减速力和连续心率减速力测定对室性心律失常发生具有预警作用。结论慢性心力衰竭患者的心率减速力和连续心率减速力减低,预示心衰患者容易发生室性心律失常,具有预警作用。
Objective To study the predictive value of heart rate deceleration and continuous heart rate deceleration on ventricular arrhythmia in patients with chronic heart failure. Methods Using randomized controlled study, the patients were divided into heart failure group and control group, and the differences of heart rate deceleration and continuous heart rate deceleration were compared between the two groups. Results There was a significant difference in heart rate deceleration and continuous heart rate deceleration between heart failure group and control group (p <0.001). A subgroup analysis of ventricular arrhythmias in patients with heart failure showed that heart rate deceleration and continuous heart rate deceleration were early warning of ventricular arrhythmias. Conclusion Heart rate deceleration and continuous heart rate deceleration in patients with chronic heart failure are lower than those in patients with chronic heart failure, which indicates that heart failure patients are prone to ventricular arrhythmia and have an early warning effect.