摘要
目的评价24h动态心电图超过万次的室性期前收缩的临床意义。方法选择24h动态心电图中超过万次的室性期前收缩患者88例，分为心脏病组44例（A组1，非心脏病44例（B组），分析其心率变异性及窦性心率震荡指标。结果A组与B组室性期前收缩伴多源性（38．64％vs 15．91％）、室上性心律失常（45．45％vs 11．36％）、ST—T异常的发生率（29．55％vs2．27％）差异均有统计学意义（均P〈O．05）。A组心率变异性时域（SDNN、SDANN、SDNNindex、rMSSD、PNN50）均显著低于B组（P〈0．05或0．01）。窦性心率震荡指标A组TO显著高于B组，而TS显著低于B组（均P〈0．01）。讨论室性期前收缩频度不能反映心脏疾病的严重性，心率变异性下降、窦性心率震荡异常主要与器质性心脏病相关。
Objective To evaluluate clinical significance of premature ventricular beat （PVB） over ten thousand on 24-hour dynamic electrocardigram（DCG）. Methods 88 cases with PVB over ten thousand on 24-hour DCG were included and divided into group A （with organic heart disease, n=44） and group B （without organic heart disease, n=44）. Heart rate variability （HRV） and heart rate turbulence （HRT） were analyzed. Results The frequency of PVB and non-sustained ventricular tachycardia were similar in two groups, albeit multifocal PVB was significant more in group A than in group B （P 〈 0.05）. HRV was significantly lower in group A than in group B. HRT onset was significantly higher and HRT slope was significantly lower in group A than in group B （all P 〈0.01 ）. Conclusion The frequency of PVB may not be a reflection of severity of heart disease. The decrease of HRV and abnormal of HRT are associated mainly with organic heart disease
出处
《心电学杂志》
2011年第1期14-16,共3页
Journal of Electrocardiology(China)
关键词
动态心电图
室性期前收缩
窦性心率震荡
心律变异性
Dynamic electrocardiogram
Premature ventricular beat
Heart rate turbulence
Heart rate variability
