CAJ | 학술논문

目的探讨阵发性心房颤动发生的动态心电图特征.方法对20例阵发性心房颤动患者和18例非阵发性心房颤动患者的动态心电图进行分析，测定和计算期前收缩偶联间期和房性期前收缩指数.结果阵发性心房颤动共发作185次，其中148次由房性期前收缩诱发(80%).诱发心房颤动的房性期前收缩与未诱发心房颤动的房性期前收缩比较，偶联间期较短，期前收缩指数较小，差异有统计学意义(P<0.05).心房颤动发作前1h房性期前收缩和短阵房性心动过速频率增加.30.5%阵发性心房颤动发生时出现明显的长短周期现象.结论房性期前收缩是阵发性心房颤动发生的主要因素，长短周期现象是阵发性心房颤动发生的重要电生理机制.
목적탐토진발성심방전동발생적동태심전도특정.방법대20례진발성심방전동환자화18례비진발성심방전동환자적동태심전도진행분석，측정화계산기전수축우련간기화방성기전수축지수.결과진발성심방전동공발작185차，기중148차유방성기전수축유발(80%).유발심방전동적방성기전수축여미유발심방전동적방성기전수축비교，우련간기교단，기전수축지수교소，차이유통계학의의(P<0.05).심방전동발작전1h방성기전수축화단진방성심동과속빈솔증가.30.5%진발성심방전동발생시출현명현적장단주기현상.결론방성기전수축시진발성심방전동발생적주요인소，장단주기현상시진발성심방전동발생적중요전생리궤제.
Objective To evaluate dynamic electrocardiogram characteristics of paroxysmal atrial fibrillation(PAF). Methods The coupling interval and the indexofatrialprematurecontraction (APC) were measured and calculated based on dynamc electrocar-diogram in 20 patien with PAF and 18 patien without PAF. Results 185episodes of PAF were recorded. Of them,148 episodes of PAF(80%)were induced by APC.APC that induced PAF had a shorter coupling interded and a lower APC index compared to APC that did not induce PAF.The differrence between them was significant (P﹤0.05).APC and paroxysmal atrial tachycardia occurred more during the 1-hour Period before the onsetof PAF.Longshort cycle was seen in 30.5% of PAF.Conclusion APC is a main factor inducing PAF.Long-short cycle Is an important electrophysiological mechanism of PAF.