The "Dead-End Tract" and Its Role in Arrhythmogenesis

被引：16
作者：
de Vries, Lennart [1 ]
Hendriks, Astrid [1 ]
Szili-Torok, Tamas [1 ]
机构：
[1] Erasmus MC, Dept Clin Electrophysiol, NL-3015 CE Rotterdam, Netherlands
来源：
JOURNAL OF CARDIOVASCULAR DEVELOPMENT AND DISEASE | 2016年 / 3卷 / 02期
关键词：
cardiac conduction system; dead-end tract; idiopathic ventricular arrhythmia;
D O I：
10.3390/jcdd3020011
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Idiopathic outflow tract ventricular arrhythmias (VAs) represent a significant proportion of all VAs. The mechanism is thought to be catecholamine-mediated delayed after depolarizations and triggered activity, although other etiologies should be considered. In the adult cardiac conduction system it has been demonstrated that sometimes an embryonic branch, the so-called "dead-end tract", persists beyond the bifurcation of the right and left bundle branch (LBB). Several findings suggest an involvement of this tract in idiopathic VAs (IVAs). The aim of this review is to summarize our current knowledge and the possible clinical significance of this tract.
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页数：12
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