Test Findings
 

Tachycardia

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Overview

  • A rapid ventricular rate of >100bpm may be in the context of a variety of rhythms that are clinically classified as narrow complex tachycardias (QRS duration <120ms) and wide complex tachycardias (QRS duration >120ms).
    • Tachyarrhythmias

    • Regular Narrow Complex Tachycardia

    • Sinus tachycardia
    • Focal atrial tachycardia
    • Atrial flutter
    • AV nodal reentrant tachycardia
    • AV reentrant tachycardia
    • Irregular Narrow Complex Tachycardia

    • Multifocal atrial tachycardia
    • Atrial fibrillation
    • Atrial flutter with variable block
    • Regular Wide Complex Tachycardia

    • Monomorphic ventricular tachycardia
    • SVT with aberrant conduction (bundle branch block)
    • SVT with preexcitation (accessory pathway)
    • Pacemaker-mediated tachycardia (atrial tracking or endless loop tachycardia)
    • Irregular Wide Complex Tachycardia

    • Polymorphic ventricular tachycardia
    • AF with aberrant conduction (bundle branch block)
    • AF with preexcitation (accessory pathway)
    • Other

    • Artefact - due to CPR, shivering, shaking or other movements
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