This is a tracing of a 65-year-old male, with a viral infection and high fever (40° C), who was admitted to the hospital with syncopal attacks, loss of consciousness and seizures. One of these attacks was recorded and the ECG monitor tracing showed Ventricular Fibrillation. In the VF protocol, amiodarone iv was infused.

This produced the ECG on the right, but VF was repeatedly seen. What can be the diagnoses based form his ECG findings? Source ECG pedia *This image based case is from Docplexus Editorial team for educative purpose only