Left bundle branch block

Left bundle branch block
ECG characteristics of a typical LBBB showing wide QRS complexes with abnormal morphology in leads V1 and V6.
SpecialtyCardiology, Emergency Medicine

Left bundle branch block (LBBB) is a conduction abnormality in the heart that can be seen on an electrocardiogram (ECG).[1] In this condition, activation of the left ventricle of the heart is delayed, which causes the left ventricle to contract later than the right ventricle.

  1. ^ "Conduction Blocks". Department of Physiology. Kansas City University of Medicine & Biosciences. Archived from the original on 23 May 2009. Retrieved 20 January 2009.
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