摘要
探讨慢性心力衰竭 (CHF)病人QRS综合波幅值及形态的变化与意义。使用常规、高频及动态心电图分别采集 6 0例不同病因CHF病人QRS综合波幅度、QRS切迹与扭挫、室性心律失常等体表心电信息。结果 :QRS幅度的缺血性心脏病 (IHD)与扩张型心肌病 (DCM)较对照组 (1.76± 0 .2 7,1.5 7± 0 .14vs 2 .2 3± 0 .32mV ,P均 <0 .0 5 )降低。IHD、高血压性心脏病 (HHD)与DCM的QRS切迹数的较对照组 (5 .43± 0 .2 5 ,4.36± 0 .19,7.2 3± 0 .46vs 0 .6 4± 0 .11mV)增多 ;各组室性异位搏动显著增加。上述改变随CHF加重愈趋明显。结论 :由QRS综合波幅值及形态变化所反映的心脏电活动异常 。
To investigate changes and significance of both amplitude and modality of QRS complex in patients with chronic heart failure(CHF),the amplitude and modality of QRS complex in patients with ischemic heart disease(IHD, n=22 ),hypertensive heart disease(HHD, n=20 )and dilated cardiomyopathy(DCM, n=18 )were measured by means of 12 lead ECG,24 hour ECG(Holter)and high frequency ECG.Results:Compared with control( n=20 ,2.23±0.32 mV),QRS amplitude of patients with IHD(1.76±0.27mV, P<0.05 )and DCM(1.57±0.14 mV, P<0.05 )were reduced.Notching of QRS in patients with IHD(5.43±0.25 mV, P<0.05 ),HHD(4.36±0.19 mV, P<0.05 )and DCM(7.23±0.46 mV, P<0.05 )were increased while that of subjects in control was 0.64±0.11 mV.Ventricular arrhythmia in patients with different heart diseases were also increased.The above changes were more remarkable when CHF was getting more severe.Conclusion:Abnormallites of cardiac electrophysiology indicated by changes of both amplitude and modality of QRS complex may be an electrophysioloical basis of arrhythmias for patients with CHF.
出处
《中国心脏起搏与心电生理杂志》
2001年第3期196-198,共3页
Chinese Journal of Cardiac Pacing and Electrophysiology
