Fig. 1From: Brugada syndrome in a patient with amyotrophic lateral sclerosis: a case reportTwelve-lead electrocardiogram showing type 2 Brugada pattern. Saddleback appearance can be seen in the precordial leads, especially in lead V2. This is characterized by a ≥2-mm ST elevation followed by a trough ≥1 mm and either a positive or biphasic T waveBack to article page