摘要
目的研究频发室性早搏与心率变异性之间的关系。方法对频发室性早搏患者记录其24h心电图，选择频发室早和无空早两个时段（各60min）进行心率变异性分析，指标包括以下6项：RR、SDNN、SDANN、LF、HF、L/H。结果频发室早时患者RR，SDNN及SDANN则显著降低，P＜0．05，P＜0．01；而LF，L/H有升高的趋势，HF有下降的趋势。这种改变，主要发生在伴有器质性心血管病的患者。结论频发室早时心率变异性是下降的。且与其心脏病基础是相关的。
Objectvie To investigate the relationship between the frequent ventricular premature complexes (VPC)and heart rate variability(HRV). Methods 50 subjects with VPC wrer chosen to be taken a 24 hour electrocardiographicrecording. Two segments. one hour with frequent VPC and another hour without VPC in the same patient were chosen and analysed their time domain and rrequence domain indices. 14 subjects (group A)were without organic cardiovasular diseases. 36 subjects (group B) wrew with organic cardiovascular diseases. Results In group B, Mean RR intervals, standard deviation of all normal RR ivtervals (SDNN)and standard deviation of the average normal RR intervals for 5-min segments (SDANN) in segment of freguent VPC were significant lower than those in the segment without VPC, In group A, no sigificant differences in all indices of HRV between these tow segments were observed. As a whole group(including group A and group B), the RR interval, SDANN, SDANN were also signifficant low when frequent VPC happeded. Conclusion HRV decreased when frequent VPC occurred and its decrease was association with organic cardiovascular desease.
出处
《广东医学》
CAS
CSCD
1999年第1期19-20,共2页
Guangdong Medical Journal
关键词
频发室性早搏
心率变异性
早搏
Ventricular premature complexes Heart rate variability Autonerve activity Organic cardiovascular disease
