Atrioventricular block classification: Difference between revisions
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** Prolongation of [[PR interval]] | ** Prolongation of [[PR interval]] | ||
* [[Second Degree AV Block]] also known as [[Mobitz I]] and [[Mobitz II]] | * [[Second Degree AV Block]] also known as [[Mobitz I]] and [[Mobitz II]] | ||
** Type I AV Block ([[ | ** Type I AV Block ([[Wenckebach]]) | ||
*** Progressive prolongation of the [[PR interval]] before dropped beat. | *** Progressive prolongation of the [[PR interval]] before dropped beat. | ||
*** Usually block is in the [[AV node]] | *** Usually block is in the [[AV node]] | ||
Revision as of 16:38, 6 February 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Classification
- First Degree AV Block
- Prolongation of PR interval
- Second Degree AV Block also known as Mobitz I and Mobitz II
- Type I AV Block (Wenckebach)
- Progressive prolongation of the PR interval before dropped beat.
- Usually block is in the AV node
- Type II AV Block
- No change in PR interval before dropped beat
- Usually infranodal
- Type I AV Block (Wenckebach)
- Third Degree AV Block also known as complete heart block
- No relationship between atrial and ventricular activity.