Volume 13, Issue 1, Pages 226-232 (January 2016) Painful left bundle branch block syndrome: Clinical and electrocardiographic features and further directions for evaluation and treatment Alexei Shvilkin, MD, PhD, Ethan R. Ellis, MD, Ernest V. Gervino, ScD, Anthony D. Litvak, MD, Alfred E. Buxton, MD, Mark E. Josephson, MD Heart Rhythm Volume 13, Issue 1, Pages 226-232 (January 2016) DOI: 10.1016/j.hrthm.2015.08.001 Copyright © 2016 Heart Rhythm Society Terms and Conditions
Figure 1 Single precordial lead tracings for cases 1–4 and an example of chronic left bundle branch block (LBBB) with a calculated S/T wave ratio shown for each. A single precordial lead tracing of chronic LBBB is also shown for comparison (leads V2–V3, 25 mm/s, 10 mm/mV). Heart Rhythm 2016 13, 226-232DOI: (10.1016/j.hrthm.2015.08.001) Copyright © 2016 Heart Rhythm Society Terms and Conditions