The “Dead-End Tract” and Its Role in Arrhythmogenesis

Journal of Cardiovascular Development and Disease

Astrid Hendriks¹  Lennart de Vries¹  Tamas Szili-Torok¹ 

[1] Department of Clinical Electrophysiology, Erasmus Medical Center, Rotterdam, 3015 CE, The Netherlands;

关键词: cardiac conduction system;    dead-end tract;    idiopathic ventricular arrhythmia;   

DOI  :  10.3390/jcdd3020011

来源: DOAJ

【 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.

【 授权许可】

Unknown