A left posterior fascicular block (LPFB) also known as a left posterior hemiblock (LPHB) occurs when the posterior fascicle of the left bundle branch is no longer able to conduct action potentials ...

then the action potentials will eventually get there by traveling through the posterior fascicle and right bundle branch. They will ultimately reach the muscle cells that the left anterior ...

As a result, the impulses are sent to the left ventricle via the posterior fascicle. This results in a conduction delay and a slight widening of the QRS. In the present analysis, the researchers ...