动态心电图中长R-R间期的常见原因分析

目的 探讨动态心电图中长R-R间期的常见原因及临床意义。方法 回顾性地分析141例动态心电图长R-R间期：分心房纤颤106例（占75%）为A组，窦性节律伴心律失常35例（占25%）为B组，分别比较两组长R-R间期的发生情况及临床意义。结果 A组最快心室率、平均心室率大于B组有显著差异（p＜0.001，p＜0.05）, B组最慢心室率、≥2.5s的R-R间期均值大于A组有显著差异（p＜0.005），B组≥2.5s的R-R间期中12例（占67%）与睡眠无相关性。结论 长R-R间期出现的时间长短及频率与不同的病因、基础心律有关，为指导使用抗心律失常药物、人工心脏起搏器安装具有重要的临床意义。

An Analysis of the Common Cause of the Long R-R Interval in Holter Monitoring

〔Objective〕 To explore the common cause and clinical significance of the long R-R interval in Holter monitoring. 〔 Methods〕Long term 24 hour Holter recordings with long R-R interval in 141 patients were analyzed retrospectively. In all, 106(75 percent) recordings in atrial fibrillation （Af）were divided into the group A. 35(25 percen) recordings in sinus rhythm with arrhythmias were divided into the group B. To compare the characteristic and clinical significance of the long R-R interval in the two groups〔Results〕In A group , the fastest ventricular rate, average heart rate are greater than the B group with significantly different (p <0.001, p <0.05), In B group, the slowest heart rate, the mean of the RR interval (≥ 2.5s) are greater than A group with significantly different ( p <0.005).In B group, the RR interval in 12 cases (67%) was ≥ 2.5s and no correlation of sleep. 〔Conclusion〕 Long RR interval duration and frequency appeared with different etiology, on the basis of rhythm. To guide the use of anti-arrhythmic drugs, artificial cardiac pacemaker installation has important clinical significance.