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A left posterior fascicular block (LPFB), also known as left posterior hemiblock (LPH), is a condition where the left posterior fascicle, which travels to the inferior and posterior portion of the left ventricle, [1] does not conduct the electrical impulses from the atrioventricular node.
Left posterior fascicular block. Only the posterior part of the left bundle branch is involved; Other classifications of bundle branch blocks are; Bifascicular block. This is a combination of right bundle branch block (RBBB) and either left anterior fascicular block (LAFB) or left posterior fascicular block (LPFB) Trifascicular block.
Left anterior fascicular block (LAFB) is an abnormal condition of the left ventricle of the heart, [1] [2] related to, but distinguished from, left bundle branch block (LBBB). It is caused by only the left anterior fascicle – one half of the left bundle branch being defective.
Infra-Hisian block is that of the distal conduction system. Types of infra-Hisian block include: Type 2 second degree heart block (Mobitz II) – a type of AV block due to a block within or below the bundle of His [5] Left anterior fascicular block; Left posterior fascicular block; Right bundle branch block; Left bundle branch block
Bifascicular block is characterized by right bundle branch block with left anterior fascicular block, or right bundle branch block with left posterior fascicular block on electrocardiography. Complete heart block could be the cause of syncope that is otherwise unexplained if bifascicular block is seen on electrocardiography. [1]
Left anterior fascicular block; Left posterior fascicular block; Bifascicular block; Trifascicular block This page was last edited on 27 April 2022, at 23:53 (UTC). ...
The axis may be normal but may be deviated to the left or right. [4] There are also partial blocks of the left bundle branch: "left anterior fascicular block" (LAFB) [5] and a "left posterior fascicular block" (LPFB). [5] This refers to the block after the bifurcation of the left bundle branch.
Bifascicular block is a combination of right bundle branch block and either left anterior fascicular block or left posterior fascicular block. Conduction to the ventricle would therefore be via the remaining fascicle. The ECG will show typical features of RBBB plus either left or right axis deviation. [7] [8]