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目的:研究急性冠脉综合征(ACS)患者心率减速力(DC)的变化及其与心率变异性(HRV)之间的关系。方法:97例ACS患者(ACS组)与99例稳定型心绞痛患者(SAP组)及98例正常人行24小时动态心电图检查,计算机自动测定DC值并进行心率变异性(HRV)分析。结果:ACS组患者中,异常DC的发生率明显高于SAP组和正常对照组;ACS组患者的DC值明显低于SAP组与正常对照组;ACS组患者的DC与HRV密切相关。结论:ACS患者的DC减弱,DC变化与HBV密切相关。
Objective: To study the relationship between heart rate deceleration (DC) and heart rate variability (HRV) in patients with acute coronary syndrome (ACS). Methods: A total of 97 patients with ACS (ACS group), 99 patients with stable angina pectoris (SAP group) and 98 normal subjects underwent 24 hours dynamic electrocardiogram. The DC values were measured automatically and analyzed by heart rate variability (HRV). Results: The incidence of abnormal DC in ACS group was significantly higher than that in SAP group and normal control group. The DC value in ACS group was significantly lower than that in SAP group and normal control group. DC in ACS group was closely related to HRV. Conclusion: DC in patients with ACS weakened and DC changes were closely related to HBV.