摘要
目的：分析充血性心力衰竭（心衰）患者的心率变异性（ＨＲＶ）及室性心律失常的情况，并确定二者之间的关系。方法：用２４小时动态心电图监测分析７０例心衰患者（心衰组）和１６２例心功能代偿的心血管病患者（对照组）的ＨＲＶ时域指标及室性心律失常。结果：心衰组频发室性早搏及非持续性室性心动过速的检出率显著高于对照组，其ＨＲＶ明显低于对照组。多元回归分析显示，心衰后窦性ＲＲ间期标准差与心功能及性别相关，心功能越差ＲＲ间期标准差越低；女性ＲＲ间期标准差值小于男性；而与室性心律失常无明确相关性。结论：充血性心力衰竭患者ＨＲＶ下降，室性心律失常机会增加；心衰后ＨＲＶ与心功能级别呈负相关而与频发室性早搏及非持续性室性心动过速无显著相关性。
Objective:To analyze the heart rate variability(HRV),ventricular arrhythmia(VA) and their relationship in patients with congestive heart failure(CHF). Methods:The study group comprised 70 patients with chronic CHF, the control group involved 162 patients with compensatory heart function secondary to cardiovascular diseases.All patients underwent 24 h ambulatory electrocardiogram,time domain indices of HRV and VA were analysed. Results:The incidence of frequent ventricular ectopic beats(>30/h) and nonsustained ventricular tachycardia were significantly higher in CHF group than in control group( p <0 01),four indices of HRV [the mean values of all normal RR intervals,standard deviation of all normal RR intervals(SDNN),standard deviation of the average normal RR intervals for 5 min segments ,mean of the standard deviation of all normal RR intervals for 5 min segments]were significantly depressed in CHF patients than in control group( p <0 01).Multiple regression analysis showed that in CHF group,SDNN was correlated to the classes of NYHA heart function and sex,while no correlation was found between HRV and VA. Conclusion:The incidence of VA is increased and the HRV is decreased in CHF patients.The depressed HRV is primarily related to heart function and independent of the presence of VA.
出处
《中国循环杂志》
CSCD
北大核心
1997年第2期128-130,共3页
Chinese Circulation Journal
关键词
充血性心力衰竭
心率变异
动态心电图
心律失常
Congestive heart failure
Heart rate variability
Ambulatory electrocardiography
Ventricular arrhythmia
