房室结双径路文氏现象的心电图分析  

Electrocardiogram analysis of the Wenckebach Phenomenon due to dual atrioventricular nodal pathways

作　　者：唐宝龙[1] 时志城[1] 

机构地区：[1]安徽医科大学第四附属医院,230022

出　　处：《临床心电学杂志》2013年第2期97-100,共4页Journal of Clinical Electrocardiology

摘　　要：目的探讨房室结双径路相关文氏现象的心电图特征及形成机制。方法对18例房室结双径路相关文氏现象患者的心电图资料进行回顾性分析。结果15例表现为顺向型，文氏周期中PR间期最大增量变化在0．13～0．40（0．22±0．08）s，3例出现单个心房回波，1例诱发慢快型房室结折返性心动过速。3例表现为逆向型，室房文氏周期中RP间期最大增量变化在0．20～0．28（0．24±0．06）S，3例均发生单个心室回波，1例诱发快慢型房室结折返性心动过速。结论不典型文氏现象是房室结双径路传导的主要表现形式之一，部分可伴随不同形式的折返或心动过速，通过心电图合理分析、准确诊断，可以对临床诊治提供帮助。Objective To explore the electrocardiogram （ECG） traits and mechanisms of the Wenckebach phenomenon due to dual atrioventricular （AV） nodal pathways. Methods The ECGs of 18 patients with the Wenekebach phenomenon due to dual AV nodal pathways were studied retrospectively. Results 15 ECGs had antegrade conduction and maximum PR interval increments between 0.13 and 0.40 seconds （0.22±0.08s）, with 3 having a single atrial echo beat and 1 having slow-fast AV nodal reentrant tachyeardia. The other 3 ECGs had retrograde conduction and maximum RP interval increments between 0.20 and 0.28 seconds （0.24 ± 0.06s）, with 3 having a single ventricular echo beat and 1 having fast-slow AV nodal reentrant tachycardia. Conclusion Atypical Wcnckebach phenomenon is one of the common manifestations of dual AV nodal pathways and sometimes accompanied by different types of reentry or tachycardia. ECG analysis of AV nodal Wenekebach phenomenon can help to diagnose and treat diseases.

关 键 词：文氏现象 房室结双径路 心电图 

分 类 号：R540.4[医药卫生—心血管疾病]