Tachycardia classification: Difference between revisions
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Tachycardias can be classified in a variety of ways. One form of classification is whether it is a wide-complex tachycardia, or whether it is a narrow-complex tachycardia. Another way of classifying tachycardia is whether the rhythm is regular or whether it is irregular. Tachycardia can also be distinguished by type; whether is is a sinus tachycardia, a [[ventricular tachycardia]], a [[supraventricular tachycardia]], or [[atrial fibrillation]]. | Tachycardias can be classified in a variety of ways. One form of classification is whether it is a wide-complex tachycardia, or whether it is a narrow-complex tachycardia. Another way of classifying tachycardia is whether the rhythm is regular or whether it is irregular. Tachycardia can also be distinguished by type; whether is is a sinus tachycardia, a [[ventricular tachycardia]], a [[supraventricular tachycardia]], or [[atrial fibrillation]]. | ||
==Classification== | ==Classification== | ||
===Origin of the Pacemaker=== | |||
{{familytree/start |summary=Tachycardia}} | |||
{{familytree | | | | | | | | | | | | A01 | | | A01=Tachycardia}} | |||
{{familytree | | | | | |,|-|-|-|-|-|-|^|-|-|-|-|-|-|.| | }} | |||
{{familytree | | | | | B01 | | | | | | | | | | | | B02 | | B01= '''[[SVT|Narrow complex tachycardia (SVT)]]'''| B02= '''[[Wide complex tachycardia]]''' }} | |||
{{familytree | | | |,|-|^|-|-|-|.| | | |,|-|-|-|-|-|^|-|-|-|-|-|.| | }} | |||
{{familytree | | | C01 | | | | C02 | | C03 | | C04 | | C05 | | C06 | | C01= '''<u>The origin of the impulse:</u><br>Atria'''| C02= '''<u>The origin of the impulse:</u><br>AV junction'''| C03='''<u>The origin of the impulse:</u><br>Atria or AV junction''' | C04= '''<u>The origin of the impulse:</u><br>AV junction'''| C05= '''<u>The origin of the impulse:</u><br>Atria, AV junction or ventricles<br><br> Presence of an [[accessory pathway]]'''| C06= '''<u>The origin of the impulse:</u><br>Pacemaker'''}} | |||
{{familytree | |,|-|^|-|.| | | |!| | | |!| | | |!| | | |!| | | |!| | }} | |||
{{familytree | D01 | | D02 | | D03 | | D04 | | D05 | | D06 | | D07 | D01= [[Atrial fibrillation]] <br> [[Atrial flutter]] <br> [[Ectopic Atrial Rhythm|Ectopic atrial rhythm]] <br> [[Multifocal Atrial Tachycardia (MAT)|Multifocal atrial tachycardia (MAT)]] <br> [[Paroxysmal Atrial Tachycardia (PAT) with Block|Paroxysmal atrial tachycardia (PAT) with block]] <br> [[Premature Atrial Contractions (PACs)|Premature atrial contractions (PAC)]] <br> [[Sinus Tachycardia|Sinus tachycardia]] <br> [[Wandering atrial pacemaker]]<br> [[Sick sinus syndrome]]| D02= [[AVNRT]] <br><br> [[AVRT]] ([[accessory pathway]]):<br>- [[Wolff-Parkinson-White syndrome|Wolff-Parkinson-White syndrome (WPW)]]<br>- [[Lown-Ganong-Levine syndrome|Lown-Ganong-Levine syndrome (LGL)]]|D03=[[Accelerated junctional rhythm]]| D04= '''[[Wide complex tachycardias|SVTAC]]'''<br>'''([[Wide complex tachycardias|SVT with aberrant conduction]]):<br><br>'''[[Left Bundle Branch Block|Left bundle branch block]] <br> [[LAHB|Left anterior hemi-block]] <br> [[Left posterior fascicular block electrocardiogram|Lefo posterior hemi-block]] <br> [[Right Bundle Branch Block|Right bundle branch block]] <br> [[Trifascicular block]]| D05= [[Ventricular tachycardia]] <br> [[Ventricular fibrillation electrocardiogram|Ventricular fibrillation]] <br> [[Ventricular Parasystole|Ventricular parasystole]] | D06= [[Wolff-Parkinson-White syndrome|Wolff-Parkinson-White syndrome (WPW)]]<br>[[Lown-Ganong-Levine syndrome|Lown-Ganong-Levine syndrome (LGL)]]| D07= [[Pacemaker-mediated tachycardia]] <br> [[Runaway pacemaker syndrome]]<br> [[Sensor induced tachycardia]]}} | |||
{{familytree/end}} | |||
It is sometimes useful to classify tachycardias as either narrow complex tachycardias (often referred to as [[supraventricular tachycardia]]s) or [[wide complex tachycardia]]s. Narrow and wide refer to the width of the [[QRS complex]] on the [[ECG]]. Narrow complex tachycardias tend to originate in the [[atria]], while [[wide complex tachycardia]]s tend to originate in the [[ventricle]]s. Tachycardias can be further classified as either regular or irregular. | ====Atrial Rhythms==== | ||
*[[Atrial fibrillation|Atrial fibrillation (Afib)]] | |||
*[[Atrial flutter]] | |||
*[[Multifocal atrial tachycardia]] | |||
*[[Premature atrial contraction|Premature atrial contractions (PACs)]] | |||
*[[Sick sinus syndrome]] | |||
*[[Sinus tachycardia]] | |||
*[[Supraventricular tachycardia|Supraventricular tachycardia (SVT)]] | |||
*[[Wandering pacemaker|Wandering atrial pacemaker]] | |||
====Atrial Ventricular Arrhythmias==== | |||
*[[AV nodal reentrant tachycardia]] | |||
*[[AV reentrant tachycardia]] | |||
**[[Wolff-Parkinson-White syndrome]] | |||
**[[Lown-Ganong-Levine syndrome]] | |||
====Junctional Arrhythmias==== | |||
*[[Junctional rhythm]] | |||
*[[Junctional tachycardia]] | |||
* Premature junctional complex | |||
====Ventricular Rhythms==== | |||
*[[Accelerated idioventricular rhythm]] | |||
*[[Premature ventricular contraction|Premature ventricular contractions (PVC)]] | |||
*[[Ventricular tachycardia]] | |||
*[[Ventricular fibrillation]] | |||
**[[Polymorphic ventricular tachycardia]] | |||
===QRS Morphology=== | |||
It is sometimes useful to classify tachycardias as either narrow complex tachycardias (often referred to as [[supraventricular tachycardia]]s) or [[wide complex tachycardia]]s. Narrow and wide refer to the width of the [[QRS complex]] on the [[ECG]]. Narrow complex tachycardias tend to originate in the [[atria]], while [[wide complex tachycardia]]s tend to originate in the [[ventricle]]s. | |||
===Rhythm Regularity=== | |||
Tachycardias can be further classified as either regular or irregular. | |||
==References== | ==References== | ||
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[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Emergency medicine]] | [[Category:Emergency medicine]] | ||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Latest revision as of 18:25, 15 June 2015
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Tachycardia Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Tachycardia classification On the Web |
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American Roentgen Ray Society Images of Tachycardia classification |
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Risk calculators and risk factors for Tachycardia classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: M.Umer Tariq [2]
Overview
Tachycardias can be classified in a variety of ways. One form of classification is whether it is a wide-complex tachycardia, or whether it is a narrow-complex tachycardia. Another way of classifying tachycardia is whether the rhythm is regular or whether it is irregular. Tachycardia can also be distinguished by type; whether is is a sinus tachycardia, a ventricular tachycardia, a supraventricular tachycardia, or atrial fibrillation.
Classification
Origin of the Pacemaker
Atrial Rhythms
- Atrial fibrillation (Afib)
- Atrial flutter
- Multifocal atrial tachycardia
- Premature atrial contractions (PACs)
- Sick sinus syndrome
- Sinus tachycardia
- Supraventricular tachycardia (SVT)
- Wandering atrial pacemaker
Atrial Ventricular Arrhythmias
Junctional Arrhythmias
- Junctional rhythm
- Junctional tachycardia
- Premature junctional complex
Ventricular Rhythms
- Accelerated idioventricular rhythm
- Premature ventricular contractions (PVC)
- Ventricular tachycardia
- Ventricular fibrillation
QRS Morphology
It is sometimes useful to classify tachycardias as either narrow complex tachycardias (often referred to as supraventricular tachycardias) or wide complex tachycardias. Narrow and wide refer to the width of the QRS complex on the ECG. Narrow complex tachycardias tend to originate in the atria, while wide complex tachycardias tend to originate in the ventricles.
Rhythm Regularity
Tachycardias can be further classified as either regular or irregular.