心率减速力检测对急性心肌梗死后高危患者的预测价值及临床意义  

Predictive Value of Deceleration Capacity of Heart Rate in High-risk Patients after Acute Myocardial Infarction

作　　者：曾春芳[1] 李巍景[1] 云美玲[1] 曾建平[2,3] 林雪峰[1] 黄娜[1] 林明霞[1] 曹坚[2,3] 

机构地区：[1]不详,570102 [2]海南医学院心血管病研究所,海南医学院附属医院心内科 [3]湖南省湘潭市中心医院心内科

出　　处：《心电与循环》2013年第4期260-262,共3页Journal of Electrocardiology and Circulation

基　　金：海南省自然科学基金资助项目(310151)

摘　　要：目的探讨急性心肌梗死(AMI)高危患者心率减速力(DC)的预测价值。方法选择AMI患者96例为AMI组及健康体检者90例为对照组,均进行24 h动态心电图检查,计算DC、心率震荡(HRT)和心率变异性(HRV)数值,行超声心动描记术检查获取左心室舒张末期直径(LVEDD)及左心室射血分数(LVEF)。AMI组内分为高危组和低危组。结果 AMI组DC值较对照组明显降低(P<0.05),AMI高危组DC值低于低危组(P<0.05)。生存分析结果显示DC是预测价值最高的指标。结论 DC值能有效地评价患者自主神经功能状态,有利于AMI患者猝死高危人群的筛选。Objective To evaluate predictive value of deceleration capacity of heart rate（DC） in high-risk patients af- ter acute myocardial infarction （AMI）. Methods Ninety-six patients with AMI （AMI group） and ninety healthy subjects （control group） were enrolled in the study and underwent examination of 24 hours Holter monitoring and echocardiogra- phy. DC, heart rate turbulence （HRT）, heart rate variability（HRV）, left ventricutar end-diastolic diameter （LVEDD） and left ventricular ejection fraction （LVEF） were measured and calculated. AMI patients were divided into high-risk group and low- risk group. Results DC was significantly lower in patients with AMI than in control group （P〈0.05） and in high-risk patients than in low- risk patients （P〈0.05）. The survival analysis revealed that DC was the strongest predictor for end point. Conclusion DO is benefit for evaluating autonomic nervous function and sudden death risk in AMI patients.

关 键 词：心血管病学 心率减速力 急性心肌梗死 心脏性猝死 

分 类 号：R542.22[医药卫生—心血管疾病]