Recurrent idiopathic polymorphic ventricular tachycardia/ventricular fibrillation successfully treated by cardiac sympathetic denervation

Figures

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  Figure 1. A: Twelve-lead electrocardiogram (ECG) shows frequent short-coupled ventricular ectopy with left bundle branch block/superior axis morphology consistent with a right ventricular inflow tract origin. B: Twelve lead ECG shows an episode of polymorphic ventricular tachycardia triggered by a short-coupled premature ventricular depolarization. It is important to note that the triggering premature ventricular depolarizations are consistently of the same morphology: left bundle branch block/superior axis.

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  Figure 2. An example of stored implantable cardioverter-defibrillator (ICD) electrogram demonstrating polymorphic ventricular tachycardia triggered by a short-coupled premature ventricular depolarization. The tachycardia degenerated to ventricular fibrillation and was subsequently terminated by an ICD shock.

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  Figure 3. Twelve-lead electrocardiogram shows no abnormalities known to be associated with arrhythmogenic syndromes.