A Case with Occurrence of Antidromic Tachycardia After Ablation of Idiopathic Left Fascicular Tachycardia: Mechanism of Left Upper Septal Ventricular Tachycardia. (25th January 2013)

• Record Type: Journal Article
• Authors: NISHIUCHI, SUGURU; NOGAMI, AKIHIKO; NAITO, SHIGETO
• Is Part Of: Journal of cardiovascular electrophysiology. Volume 24:Number 7(2013:Jul.)
• Page Start: 825
• Page End: 827
• Publication Date: 2013-01-25
• Subjects: Blood vessels -- Physiology -- Periodicals; Electrophysiology -- Periodicals; Heart -- Physiology -- Periodicals; 612.1
• DOI: 10.1111/jce.12072
• Languages: English
• ISSNs: 1045-3873

Abstract

<abstract abstract-type="main"> <title>Antidromic Tachycardia After Ablation of Idiopathic Left Fascicular Tachycardia</title> <p>A 36‐year‐old male presented with verapamil‐sensitive narrow QRS tachycardia. The patient underwent the catheter ablation of common idiopathic left fascicular ventricular tachycardia (ILVT) 2 years ago. During narrow QRS tachycardia, the diastolic and presystolic potentials (P1 and P2) were recorded at the left septum. Activation sequences of P1 and P2 were opposite from those in common ILVT. Entrainment of P1 at the upper septum exhibited concealed fusion and S‐QRS equal to P1‐QRS. Radiofrequency current to P1 suppressed VT. Idiopathic left upper septal VT might be the antidromic macroreentry of the common form of ILVT.</p> </abstract>