
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. Some a...
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http://en.wikipedia.org/wiki/Bifascicular_block

the combination of complete right bundle branch block with either left anterior or left posterior fascicular block. This is an imprecise though commonly used term; specific terms defining the structures involved are preferred.
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http://www.encyclo.co.uk/local/21001
No exact match found.