MedSchool: Ace Your OSCEsThe Medical Company
GET - On the App Store
Test Findings

Wide Complex Tachycardia

April 24th, 2019


Ventricular tachycardia (VT) is an imminently life-threatening arrhythmia that must be rapidly diagnosed and treated. Supraventricular tachycardia is a more benign arrhythmia that may also present as a wide complex tachycardia when combined with aberrant conduction; this can be difficult to distinguish from VT.
This section includes a list of causes of wide complex tachycardia, as well as a guide to key findings used to distinguish between causes.
  • Causes of Wide Complex Tachycardia

  • Regular

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

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

  • Artefact - due to CPR, shivering, shaking or other movements
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge
Sign Up Now

Snapshot: Initialising...