The predictive value of heart rate variability to, and its correlation with ventricular arrhythmias in patients with structural heart disease
10.3760/cma.j.issn.0254-9026.2014.11.003
- VernacularTitle:心率变异性对器质性心脏病患者室性心律失常的预测价值
- Author:
Yuzhi GE
;
Lijuan XIONG
;
Yunxia WANG
;
Zhiting WU
;
Shuhua ZHANG
;
Qiuling LIU
;
Yanyang LIU
- Publication Type:Journal Article
- Keywords:
Arrhythmias,cardiac;
Heart rate
- From:
Chinese Journal of Geriatrics
2014;33(11):1161-1163
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the predictive value of heart rate variability to,and its correlation with ventricular arrhythmias in patients with structural heart disease.Methods 24 hours ambulatory electrocardiogram monitoring was administered during March 2012 and October 2013,and standard deviation of the NN interval (SDNN) in the time-domain analysis and sympathetic/vagal ratio in the frequency domain analysis were collected and retrospectively analyzed in 300 patients.Results The incidence rate of ventricular arrhythmias was higher in patients with structural heart disease in SDNN ＜100 ms group than in control group [4.1％ (3/74) vs.39.5％ (45/114),P＜0.01].The sympathetic/vagal ratio was significantly higher in group with structural heart disease and ventricular arrhythmia than in control group(19.9 ±2.3 vs.10.1 ±1.7,P＜0.01)The time-domain index SDNN was negatively correlated with the frequency domain index (sympathetic/vagal ratio) (r=-0.819,P ＜0.01).Conclusions SDNN ＜100ms and the increased sympathetic/vagal ratio can be considered as the predictors of ventricular arrhythmias in patients with structural heart disease.
