ECG 1. The underlying rhythm is atrial fibrillation, which is interrupted by polymorphic ventricular tachycardia (VT).ECG 2. Polymorphic ventricular tachycardia.ECG 3. Spontaneous termination of the ventricular tachycardia.ECG 4. Recurrence and spontaneous termination of ventricular tachycardia.ECG 5. Polymorphic ventricular tachycardia, self-terminating.ECG 6. Repeated runs of ventricular tachycardia.ECG 7. Continued ventricular ectopy and VT.
