Journal of cardiovascular electrophysiology
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J. Cardiovasc. Electrophysiol. · Jul 2010
Influence of clinical and procedural predictors on ventricular tachycardia ablation outcomes: an analysis from the substrate mapping and ablation in Sinus Rhythm to Halt Ventricular Tachycardia Trial (SMASH-VT).
The Substrate Mapping and Ablation in Sinus Rhythm to Halt Ventricular Tachycardia (SMASH-VT) trial is the largest randomized trial in substrate-based ablation. We performed a retrospective analysis of patients randomized to prophylactic ablation of ventricular tachycardia to determine the predictive value of clinical and procedural variables on outcomes. ⋯ In this small retrospective analysis, the number of VTs induced during the procedure was predictive of 2-year outcomes. This likely reflects a more complex arrhythmia substrate in patients who fail ablation.