Intraventricular Conduction: Difference between revisions

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If the QRS complex is wider than 0.12 seconds this is mostly caused by a delay in the conduction tissue of one of the bundle branches:
If the QRS complex is wider than 0.12 seconds this is mostly caused by a delay in the conduction tissue of one of the bundle branches:
*[[#Left_Bundle_Branch_Block_.28LBBB.29| Left Bundle Branch Block (LBBB))]]
*[[#Left_Bundle_Branch_Block_.28LBBB.29| Left Bundle Branch Block (LBBB))]]
*[[#RBBB| Right Bundle Branch Block(RBBB)]]
*[[#Right_Bundle_Branch_Block_.28RBBB.29| Right Bundle Branch Block(RBBB)]]
*Interventricular conduction delay
*Interventricular conduction delay
A right or left axis rotation can be caused by a:
A right or left axis rotation can be caused by a:
*[[#Criteria for LAFB| left anterior fascicular block (LAFB)]]
*[[#Left_Anterior_Fascicular_Block_.28LAFB.29| left anterior fascicular block (LAFB)]]
*[[#Criteria for LPFB| left posterior fascicular block  (LPFB)]]
*[[#Left_Posterior_Fasicular_Block_.28LPFB.29| left posterior fascicular block  (LPFB)]]


Sometimes this conduction delay is '''frequency-dependent ''': the bundle branch block occurs only at higher heart rates and disappears at slower heart rates.
Sometimes this conduction delay is '''frequency-dependent ''': the bundle branch block occurs only at higher heart rates and disappears at slower heart rates.
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