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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 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). ...
Infra-Hisian blocks may occur at the left or right bundle branches ("bundle branch block") or the fascicles of the left bundle branch ("fascicular block" or "Hemiblock"). SA and AV node blocks are each divided into three degrees, with second-degree blocks being divided into two types (written either "type I or II" or "type 1 or 2").
First-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart in which electrical impulses conduct from the cardiac atria to the ventricles through the atrioventricular node (AV node) more slowly than normal.
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.
A bundle branch block can be diagnosed when the duration of the QRS complex on the ECG exceeds 120 ms. A right bundle branch block typically causes prolongation of the last part of the QRS complex and may shift the heart's electrical axis slightly to the right.
left anterior hemiblock: LAHB: left anterior hemiblock: Lam: laminectomy: LAN: lymphadenopathy: LAP: leukocyte alkaline phosphatase: Lap: laparotomy: Lap appy: laparoscopic appendectomy: LAR: low anterior resection: LARP: left → anterior, right → posterior (path of the vagi as they wander from thorax to abdomen) LAS: lymphadenopathy ...
Slow or absent conduction through the left bundle branch means that it takes longer than normal for the left ventricle to fully depolarise. [3] This can be due to a damaged bundle branch that is completely unable to conduct, but may represent intact conduction that is slower than normal.