Right, but not left, bundle branch block is associated with large anteroseptal scar

David G. Strauss, Zak Loring, Ronald H. Selvester, Gary Gerstenblith, Gordon Tomaselli, Robert George Weiss, Galen S. Wagner, Katherine Chih-Ching Wu

Research output: Contribution to journalArticle

Abstract

Objectives This study sought to test the hypothesis that right bundle branch block (RBBB) patients have larger scar size than left bundle branch block (LBBB) patients do. Background A proximal septal perforating branch of the left anterior descending (LAD) coronary artery most commonly perfuses the right bundle branch and left anterior fascicle, but not the left posterior fascicle. Thus, proximal LAD occlusions should cause RBBB, not LBBB. Methods We performed electrocardiograms and magnetic resonance imaging for scar quantification in 233 patients with left ventricular (LV) ejection fraction ≤35% who were receiving primary prevention implantable cardioverter-defibrillators (ICD cohort). Scar size and location were compared among patients with RBBB, LBBB, nonspecific LV conduction delay, and QRS

Original languageEnglish (US)
Pages (from-to)959-967
Number of pages9
JournalJournal of the American College of Cardiology
Volume62
Issue number11
DOIs
StatePublished - Sep 10 2013

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Bundle-Branch Block
Cicatrix
Bundle of His
Implantable Defibrillators
Patient Rights
Primary Prevention
Stroke Volume
Coronary Vessels
Electrocardiography
Magnetic Resonance Imaging

Keywords

  • ischemic heart disease
  • left bundle branch block
  • myocardial infarction
  • nonischemic cardiomyopathy
  • right bundle branch block

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Right, but not left, bundle branch block is associated with large anteroseptal scar. / Strauss, David G.; Loring, Zak; Selvester, Ronald H.; Gerstenblith, Gary; Tomaselli, Gordon; Weiss, Robert George; Wagner, Galen S.; Wu, Katherine Chih-Ching.

In: Journal of the American College of Cardiology, Vol. 62, No. 11, 10.09.2013, p. 959-967.

Research output: Contribution to journalArticle

Strauss, David G. ; Loring, Zak ; Selvester, Ronald H. ; Gerstenblith, Gary ; Tomaselli, Gordon ; Weiss, Robert George ; Wagner, Galen S. ; Wu, Katherine Chih-Ching. / Right, but not left, bundle branch block is associated with large anteroseptal scar. In: Journal of the American College of Cardiology. 2013 ; Vol. 62, No. 11. pp. 959-967.
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AU - Tomaselli, Gordon

AU - Weiss, Robert George

AU - Wagner, Galen S.

AU - Wu, Katherine Chih-Ching

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