Right bundle branch block overview
|
Right bundle branch block Microchapters |
|
Differentiating Right bundle branch block from other Diseases |
|---|
|
Diagnosis |
|
Treatment |
|
Case Studies |
|
Right bundle branch block overview On the Web |
|
American Roentgen Ray Society Images of Right bundle branch block overview |
|
Risk calculators and risk factors for Right bundle branch block overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Overview
Right bundle branch block (RBBB) results from a defect in the heart's electrical conduction system. There is a delay in failure of transmission of electrical impulses down the right bundle of the heart. As a result, the right ventricle depolarizes by an alternate mechanism. This is by means of cell-to-cell conduction. These cell to cell conduction impulses spread more slowly than usual from the interventricular septum to the left ventricle and to the right ventricle. This delay in conduction results in the characteristic ECG pattern which is a wide and notched QRS. Although conduction down the right bundle is delayed, conduction down the left bundle is normal. As result, the interventricular septum and left ventricle depolarize in the normal fashion.