Medical Term:

fascicular block

 

Definition: a condition based on the disputed concept that the left branch of the bundle of His provides two of three major fascicles of a system of conduction, of which the right bundle branch constitutes the third, for the transmission of the cardiac impulse from the atrium above to the ventricles below the AV node; block may occur in any or all fascicles, all three together producing complete AV block.

See Also: hemiblock

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