The aortic cusps are the predominant successful ablation site of idiopathic outflow-tract ventricular arrhythmias

Konstantinos P. Letsas, Stylianos Dragasis, George Bazoukis, Efstathia Prappa, Athanasia Megarisiotou, Dimitrios Asvestas, Konstantinos Vlachos, Panagiotis Mililis, Athanasios Saplaouras, Konstantinos Tyrovolas, Kosmas Valkanas, Gary Tse, Antonios Sideris, Michael Efremidis

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Background: Data regarding the successful ablation site of idiopathic outflow tract (OT) ventricular arrhythmias (VAs) in the modern era of mapping and ablation are limited. Methods and results: Over a 4-year period, a total of 309 patients underwent detailed activation mapping of OT VAs including the right ventricular outflow tract (RVOT), the left ventricular outflow tract (LVOT) and the aortic cusps (AC), and the coronary venous system. 244 cases were successfully ablated at the index procedure (78.9%). The successful ablation site was more frequently located at the LVOT/ACs (51.6%) followed by RVOT (36.2%). In particular, the ACs was the predominant successful ablation site of idiopathic OT VAs (46.7%). An epicardial site of origin was predictor of ablation failure (p < 0.05). Conclusions: The ACs is the predominant successful ablation site of idiopathic OT VAs. Take-home message: The aortic cusps are the predominant successful ablation site of idiopathic idiopathic outflow tract ventricular arrhythmias.

Original languageEnglish
Pages (from-to)63-65
Number of pages3
JournalJournal of Electrocardiology
Volume61
DOIs
Publication statusPublished - 1 Jul 2020
Externally publishedYes

Keywords

  • Ablation
  • Aortic cusp
  • Mapping
  • Ventricular arrhythmias
  • Ventricular outflow tract

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