Effects of right bundle branch block during atrioventricular nodal reentrant tachycardia

Kun Tai Lee, Shih Huang Lee, Ching Tai Tai, Pi Chang Lee, Chern En Chiang, Yenn Jiang Lin, Bien Hsien Huang, Yoga Yuniadi, Wen Ter Lai, Shih Ann Chen

研究成果: 雜誌貢獻文章同行評審

1 引文 斯高帕斯(Scopus)

摘要

Background: The significant role of bundle branch block during atrioventricular nodal reentrant tachycardia (AVNRT) is not clear. The purposes of this study were to study the effects of complete right bundle branch block (RBBB) on electrophysiological parameters during AVNRT and to define the significance of complete RBBB during AVNRT. Methods and results: According to characteristics of electrocardiogram during sinus rhythm and AVNRT, 50 patients who underwent catheter ablation for slow-fast AVNRT were divided into three groups. Group I included 20 patients who had narrow QRS (≤110 ms) during sinus rhythm and AVNRT. Group II included 18 patients who had persistent RBBB (≥120 ms) during sinus rhythm and AVNRT. Group III included 12 patients who had narrow QRS during sinus rhythm, but they had narrow QRS and transient RBBB during AVNRT. The atrio-His (AH) interval (296±60 vs. 288±75 ms), His-ventricular (HV) interval (36±11 vs. 35±11 ms), His-atrial (HA) interval (72±24 vs. 71±28 ms), VAHRA interval (defined as the interval between the onset of ventricular depolarization and the onset of atrial activity of right high atrium; 34±24 vs. 37±25 ms), VACSO interval (defined as the interval between the onset of ventricular depolarization and the onset of atrial activity of coronary sinus ostium; 13±28 vs. 26±23 ms) and tachycardia cycle length (TCL; 368±67 vs. 359±73 ms) during AVNRT were similar between group I and group II (all P>0.05). In group III, the AH interval (255±81 vs. 246±83 ms), HV interval (44±5 vs. 42±11 ms), HA interval (66±19 vs. 70±15 ms), VAHRA interval (27±15 vs. 29±16 ms), VACSO interval (23±25 vs. 21±25 ms) and TCL (322±76 vs. 316±77 ms) were not significantly different between AVNRT with narrow QRS and those with transient RBBB (all P>0.05). Conclusions: Persistent RBBB and transient RBBB have no significant effects on the electrophysiological parameters during AVNRT. These findings suggest that RBBB might not influence the conduction of lower common pathway or the circuit of AVNRT.

原文英語
頁(從 - 到)91-95
頁數5
期刊International Journal of Cardiology
101
發行號1
DOIs
出版狀態已發佈 - 五月 11 2005
對外發佈

ASJC Scopus subject areas

  • 心臟病學與心血管醫學

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