Figure 2.

A diagnostic algorithm in inherited arrhythmia syndrome. LQTS, long QT syndrome; CPVT, catecholaminergic polymorphic ventricular tachycardia; SQTS, short QT syndrome; ARVC, arrhythmogenic right ventricular cardiomyopathy; ECG, electrocardiogram; CAG, coronary angiography; SA, signal averaged; EP, electrophysiological; QTc, corrected QT; VT, ventricular tachycardia; DDx, differential diagnosis; MRI, magnetic resonance image; CT, computed tomography; RV, right ventricle; VF, ventricular fibrillation. ^aBazett or Fridericia formula: standard and upper level (up to the 2nd or 3rd intercostal space), ^bEpinephrine for LQTS, CPVT: procainamide or flecainide for Brugada syndrome, ^cNext-generation sequencing panels for channelopathies and cardiomyopathies.