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Actuarial survival rates for freedom from any ventricular tachyarrhythmia (dotted line) and freedom from any ventricular fibrillation (VF)/fast VT (< 260 ms cycle length) (continuous line) Kaplan-Meier curves for the overall patient population. The actuarial survival rate for freedom from any VT/VF was 68.5% and 58.5% after 12 months and 24 months, respectively. The actuarial survival rate for freedom from fast VT/VF was 83.2% and 78.4% at one and two years’ follow up, respectively.
