Efficacy and Safety of Dofetilide in the Treatment of Frequent Ventricular Tachyarrhythmias After Amiodarone Intolerance or Failure

To the Editor: Many patients with an implantable cardioverter-defibrillator (ICD) require concomitant antiarrhythmic drug (AAD) therapy at some point. Sotalol and especially amiodarone have been shown to reduce the number of ventricular tachycardia (VT)/ventricular fibrillation (VF) episodes and