Left Bundle Branch Block: Current and Future Perspectives

Nicholas Y. Tan, Chance M. Witt, Jae K. Oh, Yong Mei Cha

Research output: Contribution to journalReview articlepeer-review

8 Scopus citations


Left bundle branch block may be due to conduction system degeneration or a reflection of myocardial pathology. Left bundle branch block may also develop following aortic valve disease or cardiac procedures. Patients with heart failure with reduced ejection fraction and left bundle branch block may respond positively to cardiac resynchronization therapy. Lead placement via the coronary sinus is the mainstay approach of cardiac resynchronization therapy. However, other options, including physiological pacing, are being explored. In this review, we summarize the salient pathophysiologic and clinical aspects of left bundle branch block, as well as current and future strategies for management.

Original languageEnglish (US)
Pages (from-to)E008239
JournalCirculation: Arrhythmia and Electrophysiology
Issue number4
StatePublished - Apr 1 2020


  • aortic valve
  • atrioventricular node
  • cardiac resynchronization therapy
  • heart failure

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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