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Ventricular Arrhythmias

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Topic updated on 06/15/17 5:16pm

Snap Shot
  •  A 57-year-old woman presents to the emergency department after fainting. She complained of a rapid heartbeat to her co-worker just before she passed out. 
Ventricular Tachycardia
  • Introduction  
    • appears as a 3+ consecutive premature ventricular contractions (PVCs)
      • wide QRS complex of ectopic origin
    • associated with CAD, MI, and structural heart defects
    • may progress to ventricular fibrillation (VF)
  • Presentation
    • EKG
      • rate of 150-250/min
  • Treatment
    • immediate CPR and defibrillation
    • chemical cardioversion (if hemodynamically stable)
      • lidocaine, amiodarone, and procainamide
Ventricular Fibrillation
  • Introduction 
    • completely erratic ventricular rhythm
    • fatal without treatment due to minimal cardiac output
  • Presentation
    • EKG
      • no identifiable waves
  • Treatment
    • immediate CPR and defibrillation


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