摘要
目的:分析影响扩张型心肌病心率减速力的相关因素。方法:选择2016年6月至2017年9月在我院就诊的86例扩张型心肌病(Dilated Cardiomyopathy,DCM)患者为DCM组,另随机选取同期100名体检健康的志愿者为对照组。收集所有患者的一般资料,对所有对象进行24 h动态心电图和超声心动图检查,采用Pearson相关性分析对影响扩张型心肌病心率减速力的相关因素进行分析。结果:DCM组患者心率减速力(Heart rate deceleration capacity,DC)、心率加速力(Heart rate acceleration capacity,AC)、左心房内径(Left atrial diameter,LAD)与对照组比较有所降低(P<0.05);40 mm<LAD≤50 mm组与LAD≤40 mm组患者与LAD>50 mm组患者比较DC明显较高,AC明显较低;且LAD≤40 mm组AC明显低于40 mm<LAD≤50 mm组(P<0.05);DCM组患者DC与其LAD呈负相关,与LVEF呈正相关;DCM组患者AC与其LAD呈正相关,与LVEF呈负相关。结论:LAD增大与LVEF减少是DCM患者出现DC降低的影响因素,可以据此对高危人群猝死进行预测。
Objective:To study the related factors affecting the deceleration of heart rate in patients with dilated cardiomyopathy,in order to provide a theoretical basis for improving the survival of patients with dilated cardiomyopathy.Methods:A total of 86 patients with dilated cardiomyopathy(DCM)in our hospital from June 2016 to September 2017 were selected as DCM group,and 100 healthy volunteers were randomly selected as control group.The general data of all patients were collected,and 24-hour Holter and echocardiography were performed on all subjects.Pearson correlation analysis was used to analyze the related factors affecting the deceleration of heart rate in patients with dilated cardiomyopathy.Results:Compared with the control group,the heart rate deceleration capacity(DC),heart rate acceleration capacity(AC),and left atrial diameter(LAD)of patients in the DCM group were reduced(P<0.05).Compared with patients in the 40 mm<LAD≤50 mm group and LAD≤40 mm group compared with the LAD>50 mm group,the DC was significantly higher and the AC was significantly lower.The LAD≤40 mm group was significantly lower in AC than 40 mm<LAD≤50 mm group(P<0.05).DC in the DCM group was negatively correlated with LAD and positively correlated with LVEF.AC in the DCM group was positively correlated with LAD and negatively correlated with LVEF.Conclusion:Increased LAD and decreased LVEF are related factors of DC reduction in patients with DCM,which can be used to predict the risk of sudden death in high-risk groups.
作者
贾巧芬
Jia Qiao-fen(Luohe Yan City Second People's Hospital,Luohe 462300,Henan,China)
出处
《四川生理科学杂志》
2021年第2期227-229,共3页
Sichuan Journal of Physiological Sciences
关键词
扩张型心肌病
心率减速力
心率加速力
左心房内径
左心射血分数
Dilated cardiomyopathy
Heart rate deceleration capacity
Heart rate acceleration capacity
Left atrial diameter
Left ventricular ejection fraction
