A left posterior fascicular block ― also known as a left posterior hemiblock, LPHB ― occurs on the ECG when the posterior fascicle of the left bundle branch is no longer able to conduct action ...
A left posterior fascicular block (LPFB) also known as a left posterior hemiblock (LPHB ... a patient with an acute pulmonary embolism. This ECG finding is termed the McGinn-White sign.