Junctional tachycardia: Difference between revisions

Jump to navigation Jump to search
No edit summary
 
(32 intermediate revisions by 5 users not shown)
Line 1: Line 1:
__NOTOC__
__NOTOC__
[[File:Junctional tachycardia.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.]]
{{Junctional tachycardia}}
{{SI}}
{{SI}}
{{CMG}}
{{SK}} Accelerated junctional rhythm; focal junctional tachycardia; automatic junctional tachycardia; His-bundle tachycardia; ectopic junctional tachycardia; junctional ectopic rhythm.
==[[Junctional tachycardia overview|Overview]]==
==[[Junctional tachycardia historical perspective|Historical Perspective]]==


{{CMG}}
==[[Junctional tachycardia classification|Classification]]==
==Overview==
 
'''Junctional tachycardia''' is a form of [[supraventricular tachycardia]] characterized by electrical impulse generation from the [[AV node]].<ref>{{DorlandsDict|nine/000957463|junctional tachycardia}}</ref>
==[[Junctional tachycardia pathophysiology|Pathophysiology]]==
 
==[[Junctional tachycardia causes|Causes]]==
 
==[[Junctional tachycardia differential diagnosis|Differentiating Junctional tachycardia from other Diseases]]==


==Pathophysiology==
==[[Junctional tachycardia epidemiology and demographics|Epidemiology and Demographics]]==
Normally, the [[atrioventricular node]] ([[AVN]]) can generate an escape rhythm of 40-60 beats per minute in case the [[sinoatrial node]] ([[SA node]]) or atrial pacemakers fail ([[sinus arrest]]) or slow ([[sinus bradycardia]]) or if there is [[complete heart block]].  This escape rhythm generates a normal, narrow [[QRS complex]] rhythm as the electrical impulses are conducted down the usual pathways.


[[Retrograde P waves]] (i.e. upside down) [[P waves]] due to retrograde or backward conduction may or may not be present.
==[[Junctional tachycardia risk factors|Risk Factors]]==


==Causes==
==[[Junctional tachycardia natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
*[[Acute MI]]
*[[Complete heart block]]
*[[Conduction system disease]]
*[[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>
*[[Heart surgery]]
*[[Ischemic heart disease]]
*[[Isoproterenol infusion]]
*[[NSTEMI]]
*[[Sinus arrest]]
*[[Sinus bradycardia]]
*[[STEMI]]


==Differentiation of Junctional Tachycardia from other Tachycardias==
==Diagnosis==
*[[Sinus tachycardia]]:
[[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]]
*[[Atrioventricular nodal reentrant tachycardia]]: 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>


One form is [[junctional ectopic tachycardia]].
==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]]


==See also==
==Case Studies==
* [[Junctional rhythm]]
[[Junctional tachycardia case study one|Case#1]]]


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


{{Heart diseases}}


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


{{medicine-stub}}
{{WikiDoc Help Menu}}
{{WikiDoc Sources}}

Latest revision as of 16:18, 21 August 2013

Junctional tachycardia Microchapters

Home

Patient Information

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

Endoscopy

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Junctional tachycardia On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Junctional tachycardia

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

Guidance

FDA on Junctional tachycardia

on Junctional tachycardia

Junctional tachycardia in the news

Blogs on Junctional tachycardia

Directions to Hospitals Treating Junctional tachycardia

Risk calculators and risk factors for Junctional tachycardia

WikiDoc Resources for Junctional tachycardia

Articles

Most recent articles on Junctional tachycardia

Most cited articles on Junctional tachycardia

Review articles on Junctional tachycardia

Articles on Junctional tachycardia in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Junctional tachycardia

Images of Junctional tachycardia

Photos of Junctional tachycardia

Podcasts & MP3s on Junctional tachycardia

Videos on Junctional tachycardia

Evidence Based Medicine

Cochrane Collaboration on Junctional tachycardia

Bandolier on Junctional tachycardia

TRIP on Junctional tachycardia

Clinical Trials

Ongoing Trials on Junctional tachycardia at Clinical Trials.gov

Trial results on Junctional tachycardia

Clinical Trials on Junctional tachycardia at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Junctional tachycardia

NICE Guidance on Junctional tachycardia

NHS PRODIGY Guidance

FDA on Junctional tachycardia

CDC on Junctional tachycardia

Books

Books on Junctional tachycardia

News

Junctional tachycardia in the news

Be alerted to news on Junctional tachycardia

News trends on Junctional tachycardia

Commentary

Blogs on Junctional tachycardia

Definitions

Definitions of Junctional tachycardia

Patient Resources / Community

Patient resources on Junctional tachycardia

Discussion groups on Junctional tachycardia

Patient Handouts on Junctional tachycardia

Directions to Hospitals Treating Junctional tachycardia

Risk calculators and risk factors for Junctional tachycardia

Healthcare Provider Resources

Symptoms of Junctional tachycardia

Causes & Risk Factors for Junctional tachycardia

Diagnostic studies for Junctional tachycardia

Treatment of Junctional tachycardia

Continuing Medical Education (CME)

CME Programs on Junctional tachycardia

International

Junctional tachycardia en Espanol

Junctional tachycardia en Francais

Business

Junctional tachycardia in the Marketplace

Patents on Junctional tachycardia

Experimental / Informatics

List of terms related to Junctional tachycardia

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

Case Studies

Case#1]

References


Template:WikiDoc Sources