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 predic- tive value for malignant ventricular arrhythmias sudden cardiac death， and DC<2.5 ms as the abnormal standard has clinical practicality.
孙海燕. 心率减速力测定对恶性心律失常性心脏猝死的预测价值[J]. 实用心电学杂志, 2012, 21(1): 6-.
SUN Hai-Yan. Predictive value of deceleration capacity of rate to malignant ventricular arrhythmias sudden cardiac death . JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2012, 21(1): 6-.
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2012, Vol. 21 
