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目的:探讨慢性心力衰竭患者的窦性心率震荡情况。方法:测定和比较62例心力衰竭患者和30例健康人室性期前收缩后的震荡初始(TO)和震荡斜率(TS)值。结果:心力衰竭组TO值(0.14±0.17)%高于对照组(-0.04±0.09)%,TS值[(1.15±0.58)ms/R-R)]低于对照组[(3.51±0.86)ms/R-R],差异均有统计学意义(P<0.01)。而全心衰竭者TS值显著低于对照组和单侧心衰者(P<0.01、P<0.05)。结论:慢性心力衰竭患者的窦性心率震荡指标的变化可作为判定心衰严重程度的参考指标。
Objective: To investigate sinus heart rate turbulence in patients with chronic heart failure. Methods: The initial concussion (TO) and concussion slope (TS) values of 62 patients with congestive heart failure and 30 healthy controls were measured and compared. Results: The TO value (0.14 ± 0.17)% in heart failure group was significantly higher than that in control group (-0.04 ± 0.09)%, TS value [(1.15 ± 0.58) ms / RR) RR], the differences were statistically significant (P <0.01). The TS value in patients with heart failure was significantly lower than those in control group and unilateral heart failure (P <0.01, P <0.05). Conclusion: The changes of sinus rhythm of heart rate in patients with chronic heart failure can be used as a reference index to determine the severity of heart failure.