Adolescent, male, Caucasian, 16 years old, with rare complaints of rapid palpitations and concomitant precordial pain.
The patient had, on two occasions, sustained (with hemodynamic stability in 2014) and unstable in 2017. On the first occasion, was performed ablative treatment in the same year 2014. Deny syncope or recovered cardiac arrest. On treatment with amiodarone.
What is the electrocardiographic diagnosis of the events?
What is the baseline ECG diagnosis?
What is the electrophysiological substrate and why?