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目的 探讨慢性心力衰竭 (慢性心衰 )患者心率变异性改变与病情及预后的关系。方法 采用 5个时域指标 (SDNN ,SDNNIndex ,SDANNIndex ,RMSSD ,PNN5 0 )对 5 8例慢性心衰患者和 49例心功能Ⅰ级的健康者进行了心率变异性对比分析。结果 慢性心衰患者心率变异性显著低于健康人 ,并与病情及心功能分级呈明显相关。结论 慢性心衰患者心率变异性降低 ,可作为慢性心衰患者病情及预后分析的指标
Objective To investigate the relationship between heart rate variability and disease status and prognosis in patients with chronic heart failure (CHF). Methods Fifty-eight patients with chronic heart failure and 49 healthy people with cardiac function Ⅰ were analyzed by heart rate variability using five time-domain indicators (SDNN, SDNN Index, SDANN Index, RMSSD, PNN50). Results The heart rate variability in patients with chronic heart failure was significantly lower than that in healthy people, and was significantly correlated with the grade of disease and cardiac function. Conclusion Heart rate variability decreased in patients with chronic heart failure, which can be used as an indicator of the disease and prognosis in patients with chronic heart failure