血管迷走性晕厥患者的心率震荡观察

目的动态观察血管迷走性晕厥(Vasovagal syncope,VVS)患者发作后的心率震荡(Heart rateturbulence,HRT)变化。方法对42例临床诊断为VVS患者在发作当日、1周后、3个月后以及40例年龄、性别匹配的健康体检者进行动态心电图检查,并进行震荡初始和震荡斜率分析。结果 VVS患者发作当日以及TO、TS异常比例与健康对照组比较差异均有统计学意义。1周、3个月后随访观察TO、TS异常率与健康对照组相比无统计学意义。结论 VVS患者发作当日存在明显的HRT现象异常,HRT可能是诊断VVS的一种简便方法。

Investigation on heart rate turbulence in patients suffering vasovagal syncope

Objective To observe the changes of heart rate turbulence(HRT) in patients suffering vasovagal syncope.Methods The dynamic electrocardiograms of 42 newly-onset patients with vasovagal syncope(the study group) were recorded on the day syncope happened,1 week later and 3 months later.Forty age-matched healthy individuals(the control group) also underwent dynamic electrocardiogram examination.The turbulence onset(TO) and turbulence slope(TS) were analyzed.Results The average and abnormality rate of TO and TS showed statistically significant difference between the two groups on the day syncope happened(P<0.05),which showed no statistically significant difference 1 week later and 3 months later(P>0.05).Conclusion The patients suffering vasovagal syncope have abnormal HRT on the day syncope happened,thus HRT maybe a simple diagnostic method of vasovagal syncope.