Polymorphic ventricular tachycardia is an abnormal heart rhythm where the bottom chambers of your heart beat too quickly. People with severe cases may experience sudden cardiac arrest. Conditions that ...

Catheter ablation was performed in order to eliminate the trigger of the patient's ventricular arrhythmias and prevent future episodes of syncope. With the precise underlying mechanisms of VF ...

We report a case of vasovagal syncope caused by serious ventricular arrhythmias, which were triggered by PVCs originating from the RVOT. Intravenous administration of edrophonium chloride reproducibly ...