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Tachycardia

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: M.Umer Tariq [2]

Overview

Classification

Tachycardia

Narrow complex tachycardia (SVT)

Wide complex tachycardia

The origin of the impulse:
Atria

The origin of the impulse:
AV junction

The origin of the impulse:
Atria or AV junction

The origin of the impulse:
AV junction

The origin of the impulse:
Atria, AV junction or ventricles

Presence of an accessory pathway

The origin of the impulse:
Pacemaker

Atrial fibrillation
Atrial flutter
Ectopic atrial rhythm
Multifocal atrial tachycardia (MAT)
Paroxysmal atrial tachycardia (PAT) with block
Premature atrial contractions (PAC)
Sinus tachycardia
Wandering atrial pacemaker
Sick sinus syndrome

AVNRT

AVRT (accessory pathway):
– Wolff-Parkinson-White syndrome (WPW)
– Lown-Ganong-Levine syndrome (LGL)

Accelerated junctional rhythm

SVTAC
(SVT with aberrant conduction):

Left bundle branch block
Left anterior hemi-block
Lefo posterior hemi-block
Right bundle branch block
Trifascicular block

Ventricular tachycardia
Ventricular fibrillation
Ventricular parasystole

Wolff-Parkinson-White syndrome (WPW)
Lown-Ganong-Levine syndrome (LGL)

Pacemaker-mediated tachycardia
Runaway pacemaker syndrome
Sensor induced tachycardia

Pathophysiology

Causes

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Electrocardiogram | Chest X Ray | Echocardiography | MRI |Other Imaging Findings | Other Diagnostic Studies

Treatment

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

Case Studies

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