Tachycardia classification: Difference between revisions
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==Classification== | ==Classification== | ||
===Origin of the Pacemaker=== | ===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}} | |||
====Atrial Rhythms==== | ====Atrial Rhythms==== | ||
*[[Sinus tachycardia]] | *[[Sinus tachycardia]] |
Revision as of 19:40, 21 August 2013
Tachycardia Microchapters |
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Tachycardia classification On the Web |
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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
- Sinus tachycardia
- Premature atrial contractions (PACs)
- Wandering atrial pacemaker
- Multifocal atrial tachycardia
- Supraventricular tachycardia (SVT)
- Atrial flutter
- Atrial fibrillation (Afib)
Atrial Ventricular Arrythmias
Junctional Arrhythmias
- Junctional rhythm
- Junctional tachycardia
- Premature junctional complex
Ventricular Rhythms
- Premature ventricular contractions (PVC)
- Accelerated idioventricular rhythm
- 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.