Bifascicular block

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Bifascicular block
Classification and external resources
RBBB with first degree AV block.jpg
ICD-10 I45.2
ICD-9 426.53

Bifascicular block is a conduction abnormality in the heart where two of the three main fascicles of the His/Purkinje system are blocked.

Most commonly, it refers to a combination of right bundle branch block (RBBB) and either left anterior fascicular block (LAFB) or left posterior fascicular block (LPFB), with the former being more common.[1]

Some authors consider left bundle branch block (LBBB) to be a technical bifascicular block, since the block occurs above the bifurcation of the left anterior and left posterior fascicles of the left bundle branch.

Treatment[edit]

In those with bifascicular block and no symptoms little with respect to treatment is needed. In those with syncope a pacemaker is recommended.

Image[edit]

References[edit]

  1. ^ "Lesson VI - ECG Conduction Abnormalities". Archived from the original on 16 January 2009. Retrieved 2009-01-07. 

External links[edit]