TY - JOUR
T1 - The aortic cusps are the predominant successful ablation site of idiopathic outflow-tract ventricular arrhythmias
AU - Letsas, Konstantinos P.
AU - Dragasis, Stylianos
AU - Bazoukis, George
AU - Prappa, Efstathia
AU - Megarisiotou, Athanasia
AU - Asvestas, Dimitrios
AU - Vlachos, Konstantinos
AU - Mililis, Panagiotis
AU - Saplaouras, Athanasios
AU - Tyrovolas, Konstantinos
AU - Valkanas, Kosmas
AU - Tse, Gary
AU - Sideris, Antonios
AU - Efremidis, Michael
N1 - Publisher Copyright:
© 2020 Elsevier Inc.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - 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.
AB - 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.
KW - Ablation
KW - Aortic cusp
KW - Mapping
KW - Ventricular arrhythmias
KW - Ventricular outflow tract
UR - http://www.scopus.com/inward/record.url?scp=85086387090&partnerID=8YFLogxK
U2 - 10.1016/j.jelectrocard.2020.06.004
DO - 10.1016/j.jelectrocard.2020.06.004
M3 - Article
C2 - 32535059
AN - SCOPUS:85086387090
SN - 0022-0736
VL - 61
SP - 63
EP - 65
JO - Journal of Electrocardiology
JF - Journal of Electrocardiology
ER -