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2010•Chinese Journal of Clinical ResearchRequires access

Clinical research of heart rate variability in patients with chronic heart failure

LI Yun-g

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Abstract

ObjectiveTo analyze characteristics of heart rate variability (HRV) in patients with chronic heart failure (CHF) and the relationship between HRV and severity of damage of cardiac function.MethodsThe indexes of time domain and frequency domain of HRV by 24 h Holter record in 85 patients with CHF(CHF group) and 79 healthy subjects (control group) were compared and analyzed,and these indexes in CHF of different degrees were also compared.ResultsLF/HF reflecting the balance of sympathetic nerve and vagus nerve was higher in CHF group than that in control group (P0.05),and other indexes were lower in CHF group than those in control group (all P0.05).The indexes of HRV were further decreased in proportion to increasing of serious degree of CHF,and LF was more sensitive among them.ConclusionsThe changes of HRV could reflect the function of autonomic nerve and provide reference index of severe degree of CHF.

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ObjectiveTo analyze characteristics of heart rate variability (HRV) in patients with chronic heart failure (CHF) and the relationship between HRV and severity of damage of cardiac function.MethodsThe indexes of time domain and frequency domain of HRV by 24 h Holter record in 85 patients with CHF(CHF group) and 79 healthy subjects (control group) were compared and analyzed,and these indexes in CHF of different degrees were also compared.ResultsLF/HF reflecting the balance of sympathetic nerve and vagus nerve was higher in CHF group than that in control group (P0.05),and other indexes were lower in CHF group than those in control group (all P0.05).The indexes of HRV were further decreased in proportion to increasing of serious degree of CHF,and LF was more sensitive among them.ConclusionsThe changes of HRV could reflect the function of autonomic nerve and provide reference index of severe degree of CHF.

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Available abstract

ObjectiveTo analyze characteristics of heart rate variability (HRV) in patients with chronic heart failure (CHF) and the relationship between HRV and severity of damage of cardiac function.MethodsThe indexes of time domain and frequency domain of HRV by 24 h Holter record in 85 patients with CHF(CHF group) and 79 healthy subjects (control group) were compared and analyzed,and these indexes in CHF of different degrees were also compared.ResultsLF/HF reflecting the balance of sympathetic nerve and vagus nerve was higher in CHF group than that in control group (P0.05),and other indexes were lower in CHF group than those in control group (all P0.05).The indexes of HRV were further decreased in proportion to increasing of serious degree of CHF,and LF was more sensitive among them.ConclusionsThe changes of HRV could reflect the function of autonomic nerve and provide reference index of severe degree of CHF.

Key concepts: Medicine, Heart rate variability, Heart failure, Autonomic nerve, Cardiology, Internal medicine, Vagus nerve, Balance (ability)

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