Electrocardiographic features of left bundle branch block after septal myectomy for obstructive hypertrophic cardiomyopathy

Benjamin L Freedman; Divya Velury; Libin Wang; Austin Burrows; Charles Miller; Eli Simsolo; Christopher Firely; Benjamin Koethe; Hassan Rastegar; Barry J Maron; Martin S Maron; Ethan J Rowin; Christopher Madias

doi:10.1016/j.hrthm.2025.09.002

Electrocardiographic features of left bundle branch block after septal myectomy for obstructive hypertrophic cardiomyopathy

Heart Rhythm. 2025 Sep 6:S1547-5271(25)02846-2. doi: 10.1016/j.hrthm.2025.09.002. Online ahead of print.

Authors

Affiliations

¹ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts. Electronic address: benjamin.freedman@tuftsmedicine.org.
² Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts.
³ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Department of Anesthesia, University of California San Francisco, San Francisco, California.
⁴ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Crouse Medical Practice, PLLC, Syracuse, New York.
⁵ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Cedars Sinai Electrophysiology, Smidt Heart Institute, Los Angeles, California.
⁶ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Hartford HealthCare Medical Group, Hartford, Connecticut.
⁷ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Division of Thoracic and Cardiac Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
⁸ Division of Cardiology, Tufts Medicine CardioVascular Center, Boston, Massachusetts; Department of Cardiovascular Medicine, Hypertrophic Cardiomyopathy Center, Lahey Hospital & Medical Center, Burlington, Massachusetts.

PMID: 40921315
DOI: 10.1016/j.hrthm.2025.09.002

No abstract available

Keywords: Cardiac resynchronization therapy; Electrocardiogram; Hypertrophic cardiomyopathy; Intraventricular conduction delay; Left bundle branch block.