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Invited Commentary
August 2016

Can Cardiac Conduction System Disease Be Prevented?

Author Affiliations
  • 1Falk Cardiovascular Research Center, Stanford University, Stanford, California

Copyright 2016 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.

JAMA Intern Med. 2016;176(8):1093-1094. doi:10.1001/jamainternmed.2016.2863

Cardiac conduction system disorders on the electrocardiogram (ECG) are common. Left bundle branch block (LBBB) is associated with adverse outcomes, and variants previously considered normal, such as right bundle branch block (RBBB),1 left anterior fascicular block,2 or PR interval prolongation,3 may also portend morbidity and mortality.

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