Accessory pathway: Difference between revisions

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VisualWikitext

Revision as of 20:53, 26 August 2013

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Accessory atrioventricular bundle; accessory atrioventricular pathway; accessory conducting pathway; bypass tract; concealed accessory pathway

Overview

An accessory pathway is an additional route for impulse conduction between the atrium and the ventricle that generally does not involve the atrioventricular node (AV node). Conduction through accessory pathways usually exhibit electrophysiological properties different from the AV node. From anatomical viewpoint, there are at least five connections that bypass the AV node.

Conditions Involving Accessory Pathways

Diagnosis

Wolf-Parkinson-White Syndrome

There is a shortened PR interval to < 0.12 seconds
A wide QRS with a delta wave.
The QRS is 0.11 second or longer

References

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 ==Overview==
-An accessory pathway is an additional route for impulse conduction between the [[atrium]] and the [[ventricle]] that generally does not involve the [[atrioventricular node|atrioventricular node (AV node)]].  Conduction through accessory pathways usually exhibit electrophysiological properties different from the AV node.
+An accessory pathway is an additional route for impulse conduction between the [[atrium]] and the [[ventricle]] that generally does not involve the [[atrioventricular node|atrioventricular node (AV node)]].  Conduction through accessory pathways usually exhibit electrophysiological properties different from the AV node.  From anatomical viewpoint, there are at least five connections that bypass the AV node.
 ==Conditions Involving Accessory Pathways==