AV Conduction: Difference between revisions

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The cause of second degree AV block type II can be found distally from the AV node: in the HIS bundle or in the bundle branches or Purkinje fibers.  
The cause of second degree AV block type II can be found distally from the AV node: in the HIS bundle or in the bundle branches or Purkinje fibers.  


An important differential diagnosis of second degree AV block type II is a atrial extrasystoly with compensatory pause. This diagnosis is much more common and harmless.
An important differential diagnosis of second degree AV block type II is an [[Premature Atrial Complex|premature atrial complex]] with compensatory pause. This diagnosis is much more common and harmless.
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===High grade AV block===
===High grade AV block===
High grade AV block is defined as two or more p-waves not followed by QRS complexes.
High grade AV block is defined as two or more p-waves not followed by QRS complexes.

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