【摘要】 目的 分析房室结双径路1:2房室传导体表心电图特征。方法 回顾性分析山东省日照市人民医院1990年6月至2014年12月9例房室结双径路1:2传导患者体表心电图特征。结果 4例为窦性心律,1:2房室传导;2例为窦性心律1:1与1:2传导交替发生;1例为窦性心律时而沿慢径路1:1传导,时而1:2传导,偶尔沿快径路以1:1传导;1例为非阵发性房性心动过速,1:2房室传导,偶尔沿快径路以1:1传导,1:0传导1次;1例为窦性心律,以稳定间期进行快径路和慢径路传导,表现为伪文氏现象。结论 体表心电图表现为房室结双径路1:2传导少见,多为窦性心律,本组1例为非阵发性房性心动过速出现房室结双径路1:2传导,偶发1:0传导。更多还原

【Abstract】 Objective To analyze the characteristics of surface electrocardiogram(ECG)of dual atrioventricular(AV)nodal pathways with 1:2 conduction.Method ECG data of 9 patients of dual AV nodal pathways with 1:2 conduction were retrospectively analyzed.Results There were 4 cases with sinus rhythm showing 1:2 AV conduction;2 cases with sinus rhythm showing alternative 1:1 and 1:2 AV conduction;1 case with sinus rhythm showing 1:1 AV conduction along the slow pathway or 1:2 AV conduction,occasionally 1:1 AV conduction along the fast pathway;1 case with non-paroxysmal atrial tachycardia showing 1:2 AV conduction,occasionally 1:1 AV conduction along the fast pathway,1:0 AV conduction once;1 case with sinus rhythm showing AV conduction along the fast and slow pathway with a stable cycle,manifesting as pseudo Wenckebach’s phenomenon.Conclusion Dual AV nodal pathways with 1:2 conduction is rare in surface ECG,mostly being sinus rhythm;this study reports 1 case with non-paroxysmal atrial tachycardia showing 1:2,occasionally 1:0 AV conduction.更多还原