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'''Junctional tachycardia''' is a form of [[supraventricular tachycardia]] characterized by involvement of the [[AV node]].<ref>{{DorlandsDict|nine/000957463|junctional tachycardia}}</ref> It can be contrasted to [[atrial tachycardia]]. It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node.
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[[File:Double tachycardia with captures.png|thumb|300px|Junctional tachycardia (rate about 115/min) dissociated from a slightly slower [[sinus tachycardia]] (rate about 107/min) producing one form of double tachycardia; pairs of ventricular capture (C) beats (5th, 6th, 19th, and 20th beats); see laddergram.]]
{{SK}} Accelerated junctional rhythm; focal junctional tachycardia; automatic junctional tachycardia; His-bundle tachycardia; ectopic junctional tachycardia; junctional ectopic rhythm.
==[[Junctional tachycardia overview|Overview]]==


It can be associated with [[digitalis]] toxicity.<ref name="urlJunctional Rhythm: Overview - eMedicine">{{cite web |url=http://emedicine.medscape.com/article/155146-overview |title=Junctional Rhythm: Overview - eMedicine |format= |work= |accessdate=2008-12-21}}</ref> It may be due to coronary artery disease and conduction system disease.
==[[Junctional tachycardia historical perspective|Historical Perspective]]==


It can appear similar to [[atrioventricular nodal reentrant tachycardia]].<ref name="pmid17916156">{{cite journal |author=Srivathsan K, Gami AS, Barrett R, Monahan K, Packer DL, Asirvatham SJ |title=Differentiating atrioventricular nodal reentrant tachycardia from junctional tachycardia: novel application of the delta H-A interval |journal=J. Cardiovasc. Electrophysiol. |volume=19 |issue=1 |pages=1–6 |year=2008 |month=January |pmid=17916156 |doi=10.1111/j.1540-8167.2007.00961.x |url=http://www3.interscience.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=1045-3873&date=2008&volume=19&issue=1&spage=1}}</ref>
==[[Junctional tachycardia classification|Classification]]==


One form is [[junctional ectopic tachycardia]].
==[[Junctional tachycardia pathophysiology|Pathophysiology]]==


==See also==
==[[Junctional tachycardia causes|Causes]]==
* [[Junctional rhythm]]
 
==[[Junctional tachycardia differential diagnosis|Differentiating Junctional tachycardia from other Diseases]]==
 
==[[Junctional tachycardia epidemiology and demographics|Epidemiology and Demographics]]==
 
==[[Junctional tachycardia risk factors|Risk Factors]]==
 
==[[Junctional tachycardia natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
 
==Diagnosis==
[[Junctional tachycardia history and symptoms| History and Symptoms]] | [[Junctional tachycardia physical examination | Physical Examination]] | [[Junctional tachycardia laboratory findings|Laboratory Findings]] | [[Junctional tachycardia electrocardiogram|Electrocardiogram]] | [[Junctional tachycardia other imaging findings|Other Imaging Findings]] | [[Junctional tachycardia other diagnostic studies|Other Diagnostic Studies]]
 
==Treatment==
[[Junctional tachycardia medical therapy|Medical Therapy]] |  [[Junctional tachycardia surgery|Surgery]] | [[Junctional tachycardia primary prevention|Primary Prevention]] |[[Junctional tachycardia secondary prevention|Secondary Prevention]] | [[Junctional tachycardia cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] |[[Junctional tachycardia future or investigational therapies|Future or Investigational Therapies]]
 
==Case Studies==
[[Junctional tachycardia case study one|Case#1]]]


==References==
==References==
{{reflist}}
{{reflist|2}}


{{Heart diseases}}


[[Category:Cardiac dysrhythmia]]
[[Category:Up-To-Date]]
[[Category:Arrhythmia]]
[[Category:Cardiology]]
[[Category:Cardiology]]
[[Category:Electrophysiology]]
[[Category:Electrophysiology]]


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Latest revision as of 16:18, 21 August 2013

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

Synonyms and keywords: Accelerated junctional rhythm; focal junctional tachycardia; automatic junctional tachycardia; His-bundle tachycardia; ectopic junctional tachycardia; junctional ectopic rhythm.

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Junctional tachycardia from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Electrocardiogram | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Primary Prevention |Secondary Prevention | Cost-Effectiveness of Therapy |Future or Investigational Therapies

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Case#1]

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