Atrioventricular block classification: Difference between revisions

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{{Atrioventricular block}}
{{Atrioventricular block}}
{{CMG}}; {{AE}} {{Edzelco}}
{{CMG}}; {{AE}} {{EdzelCo}}


==Overview==
==Overview==
[[Atrioventricular]] ([[AV]]) [[block]] is a medical condition wherein there is a disturbance in the [[conduction]] of an [[electro-cardiac]] impulse traveling from the [[atria]] to the [[ventricle]], as a result of an [[anatomic]] or [[functional]] aberration in the [[conduction system]]. It is classified into three types, which are the [[first degree AV block]], [[second-degree AV block]], and [[third-degree AV block]]/[[complete AV block]].


==Classification==
==Classification==
* [[First degree AV block]]
* [[First degree AV block]]
** Prolongation of [[PR interval]]
** Prolongation of [[PR interval]] of more than 200 milliseconds
* [[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 ([[Wenckebach]])
** [[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]]
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*** No change in [[PR interval]] before dropped beat
*** No change in [[PR interval]] before dropped beat
*** Usually infranodal
*** Usually infranodal
* [[Complete or Third-Degree AV Block|Third degree AV block]] also known as complete heart block  
* [[Complete or Third-Degree AV Block|Third degree AV block]] also known as [[complete heart block]]
** No relationship between atrial and ventricular activity.
** No relationship between [[atrial]] and [[ventricular]] activity.


==References==
==References==

Latest revision as of 23:51, 27 July 2022

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Edzel Lorraine Co, DMD, MD[2]

Overview

Atrioventricular (AV) block is a medical condition wherein there is a disturbance in the conduction of an electro-cardiac impulse traveling from the atria to the ventricle, as a result of an anatomic or functional aberration in the conduction system. It is classified into three types, which are the first degree AV block, second-degree AV block, and third-degree AV block/complete AV block.

Classification

References

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