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目的分析持续性心房颤动患者的心率变异性(HRV)指标,探讨自主神经功能的变化在其发病过程中的作用。方法通过动态心电图检查对43例持续性心房颤动患者的HRV长程时域指标及每小时心率指标进行分析并与正常对照组比较。结果房颤组心率变异分析的正常RR间期的标准差、相邻RR之差的均方根、相邻RR之差>50 ms占窦性心搏的百分数均明显增高,白天最高与最低心率差值及心率平均值与夜间比较差异无统计学意义。结论持续性心房颤动患者存在着明显的自主神经功能失常,是持续性心房颤动发作的重要原因。
Objective To analyze the heart rate variability (HRV) in patients with persistent atrial fibrillation and to explore the role of changes in autonomic nervous system in its pathogenesis. Methods The HRV long-term time-domain index and hourly heart rate index of 43 patients with persistent atrial fibrillation were analyzed by dynamic electrocardiogram and compared with the normal control group. Results The standard deviation of normal RR interval, the root mean square of the difference between adjacent RRs, the difference of adjacent RRs> 50 ms in sinus rhythm of heart rate variability were significantly higher, the difference between the highest and lowest heart rate There was no significant difference between the mean heart rate and nighttime. Conclusion Persistent atrial fibrillation in patients with significant autonomic dysfunction, is an important cause of persistent atrial fibrillation.