title: Predictors of success in ablation of scar-related ventricular tachycardia.
abstract: During ablation of re-entrant ventricular tachycardia (VT) 3-dimensional mapping systems are now used to properly delineate the scar tissue and aid ablation of scar-related VT. The aim of our study was to outline how the mode of ablation predicts success and recurrence in large scar-related VT. When comparing patients with recurrence and patients with no recurrence, univariate analysis showed that number of ablation lesions (28 ± 8 vs. 12 ± 8, P = 0.01) and more linear ablation lesions rather than focal lesions (P = 0.03) were associated with long-term success. We demonstrated that more extensive ablation lesions and creation of linear lesions is associated with better success rate and lower recurrence rate during ablation of large scar-related ventricular tachycardia.
authors.affiliation: Cardiology Department, Ain Shams University, Cairo, Egypt.
authors.forename: Mazen T
authors.initials: MT
authors.lastname: Ghanem
authors.forename: Rania S
authors.initials: RS
authors.lastname: Ahmed
authors.forename: Ayman M
authors.initials: AM
authors.lastname: Abd El Moteleb
authors.forename: John K
authors.initials: JK
authors.lastname: Zarif
keywords: RF-ablation; myocardial scar; ventricular tachycardia