【摘要】 目的探讨心率减速力检测技术对恶性心律失常性心脏猝死的临床预测价值。方法对8例心脏猝死和17例恶性心律失常患者(观察组)的心率减速力测定资料与28例非猝死/恶性心律失常者(对照组)进行对比分析。结果以心率减速力<4.5ms为异常和<2.5ms为显著异常的标准,观察组心率减速力异常率和显著异常率分别为68%(17/25)和64%(16/25),明显高于对照组异常率14.3%(4/28,χ2=15.9,P<0.01),显著异常率3.6%(1/28,χ2=22.1,P<0.01)。结论心率减速力测定技术对于临床恶性心律失常性心脏猝死有一定的预测价值;用心率减速力<2.5ms作为异常标准更具有临床实用性。更多还原

【Abstract】 Objective To study the predictive value of testing technology of deceleration capacity of rate(DC)to malignant ventricular arrhythmias sudden cardiac death.Methods Comparative analysis of the deceleration capacity of rate were done between the observation group of 8 patients with sudden cardiac death and 17 patients with malignant ventricular arrhythmias and the control group of 28 patients with no sudden cardiac death or malignant ventricular arrhythmias.Results Standard by DC<4.5 ms as abnormal and DC<2.5 ms as significant abnormal,the DC variation of the observation group was obviously higher than that of the control group.Conclusion The deceleration capacity of rate has predictive value for malignant ventricular arrhythmias sudden cardiac death,and DC<2.5 ms as the abnormal standard has clinical practicality.更多还原