Bradycardia: Difference between revisions

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bpm: beats per minute
bpm: beats per minute
[BOX]
[BOX]
=Conduction Disorders=


==Sinus Node Dysfunction==
==Sinus Node Dysfunction==
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The Mobitz type I block is characterized by a progressively increased P-Q interval until atrial activation is blocked in the AV-node. Thereafter conduction is restored and this cycle repeats itself. Usually Mobitz type II block is located at a the atrioventricular node and rarely deteriorates to a more severe conduction block.
The Mobitz type I block is characterized by a progressively increased P-Q interval until atrial activation is blocked in the AV-node. Thereafter conduction is restored and this cycle repeats itself. Usually Mobitz type II block is located at a the atrioventricular node and rarely deteriorates to a more severe conduction block.
====Mobitz II====
====Mobitz II====
When atrial activation is blocked, without progressivly increasing P-Q interval a Mobitz Type II AV block is present. This sudden failure of AV conduction is an omen of severe conduction disease in usually infra-Hision part of the atrioventricular conduction system.
When atrial activation is blocked, without progressivly increasing P-Q interval a Mobitz Type II AV block is present. This sudden failure of AV conduction is an omen of severe conduction disease in usually infra-Hision part of the atrioventricular conduction system.  
===Third Degree AV Block===
===Third Degree AV Block===
Third degree AV block is complete block of conduction between atria en ventricle. Atrial and ventricular rhythm are complete dissociated.
Third degree AV block is complete block of conduction between atria en ventricle. Atrial and ventricular rhythm are complete dissociated.
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