ABC | Volume 114, Nº4, Suplement, April 2020

Case Report Alencar Neto et al. A painful left bundle branch block syndrome case Arq Bras Cardiol 2020; 114(4Suppl.1):34-37 Figure 1 – 12-lead ECG of the onset of pain immediately after left bundle branch block Figure 2 – Normal basal 12-lead ECG. 35