Tachycardia

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Tachycardia
Rhythm strip showing a run of ventricular tachycardia (VT)

Tachycardia Microchapters

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Overview

Historical Perspective

Classification

Pathophysiology

Causes

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

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Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

Echocardiography

MRI

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Case #1

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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

Case #1


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