慢性心力衰竭患者窦性心律震荡现象及临床意义

目的探讨慢性充血性心力衰竭伴室性早搏患者窦性心率震荡（HRT）的变化及临床意义。方法选择伴室性早搏的慢性充血性心力衰竭患者（观察组）和无器质性心脏病的室性早搏患者（对照组）各30例。记录24h动态心电图,计算其震荡起始（TO）和震荡斜率（TS）。结果慢性充血性心力衰竭组震荡起始明显高于对照组[（0.05±0.58）%VS（-2.22±1.01）%,P〈0.001],震荡斜率明显低于对照组[（5.89±2.65）ms/RR VS（7.36±1.34）ms/RR,P〈0.01]。结论慢性充血性心力衰竭患者窦性心率震荡（HRT）减低,故窦性心率震荡可用于慢性心力衰竭患者病情程度的判断。

Study of the change and significance of heart rate turbulence in patients with Chronic Heart Failure

Objective To study the change and significance of heart rate turbulence(HRT)in patients with Chronic Heart Failure(CHF).Methods 30 of CHF patients and 30 structurally normal patients with ventricular premature contraction were included.Compute TO and TS by 24 hours Holter recordings.Results To in CHF patients were significantly higher than the control group(0.05±0.58% VS-2.22±1.01%,P<0.001),while TS were significantly lower than the latter(5.89±2.65 ms/RR VS 7.36±1.34 ms/RR,P<0.01).Conclusion HRT are decreased in patients with CHF.HRT might be used as a novel index for the determination of severity of CHF.