Figure 1: Three different ECG patterns in right precordial leads frequently observed in patients with BrS. Type-1 or otherwise called coved-type ECG pattern, in which a descendant ST-segment elevation is followed by negative T waves. Type-2 or saddle-back pattern, a ST-segment elevation followed by positive or biphasic T waves. Type-3, either a coved-type or saddle-back morphology with ST-segment elevation less than 1mm. A type-1 ECG pattern is required to establish the definite diagnosis of BrS. Adapted from Chapter entitled Brugada Syndrome and related Cardiac Diseases (Book: Clinical Genomics: Practical Applications in Adult Patient Care) American College of Physicians, 2011.