Left Posterior Fascicular Block (LPFB)Left posterior fascicular block LPFB (left posterior hemiblock), impulses are conducted to the left ventricle via the left anterior fascicleJohn Larkin and Robert ButtnerFebruary 2, 2021
Trifascicular BlockTrifascicular block (TFB) refers to the presence of conducting disease in all three fascicles: RBBB, LAFB, LPFB. LITFL ECG LibraryRobert Buttner and John LarkinJanuary 5, 2021
Bifascicular BlockBifascicular block is the combination of RBBB with either LAFB or LPFB. Conduction to the ventricles is via the single remaining fascicle.Ed Burns and Robert ButtnerDecember 1, 2020