CPVT diagnosis is based on reproducing irregularly shaped ventricular arrhythmias during ECG exercise stress testing, syncope occurring during physical activity and acute emotion, and a history of exercise or emotion-related palpitations and dizziness with an absence of structural cardiac abnormalities [REF].
Because its symptoms are usually only triggered when the body is subjected to intense emotional or physical stress, the condition is often not detected by the traditional methods of electrophysiologic examination such as a resting electrocardiogram [REF].