扩张型心肌病患者心率震荡的变化规律

目的探讨扩张型心肌病(DCM)患者心率震荡(HRT)的变化规律及预测价值。方法42例DCM患者和50名正常对照均接受动态心电图(Holter)、超声心动图等检查,记录临床资料,分别计算HRT的两个参数震荡初始(TO)和震荡斜率(TS),并进行3￣42个月的随访。结果DCM患者TO明显高于对照组,TS明显低于对照组(P<0.05);重度DCM患者TS明显低于轻度DCM患者(P<0.05);TO与左室射血分数(LVEF)明显相关,TS与心率变异性(HRV)、LVEF明显相关。结论DCM患者HRT现象明显减弱,HRT可作为判断DCM预后的指标。

The change regularity and prognostic value of heart rate turbulence in patients with dilated cardiomyopathy

Objective To invest the change regularity and prognostic value of heart rate turbulence (HRT) in patients with dilated cardiomyopathy(DCM). Method Forty-two DCM patients as DCM group and 50 health persons as control group.The CHF group was devided into subgroups according to different severity degree.Then collect the basic information,draw out index signs:HRT (including TO and TS),heart rate variability(HRV) from Holter and left ventricular eject fraction(LVEF) from UCG. Results TO in DCM patients was significant higher than those in control(P<0.05),while TS was significant lower than those in control(P<0.05).TS in severe patients were significant lower than those in mild patients (P<0.05).There is significant correlation between turbulence TO and LVER(P<0.05),and between TS and HRV or LVEF(P<0.05). There is no correlation between turbuence TO and TS(P>0.05).Conclusion HRT was significant weaked in patients with DCM, and maybe indicate the severity degree of DCM patients.