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Ventricular Fibrillation (VFib)
CardiovascularAll SpeciesNew
Key Points
  • Ventricular fibrillation (VFib) is a life-threatening cardiac arrhythmia, characterised by chaotic, disorganised electrical activity in the ventricles and ineffective ventricular contractions
  • It leads to a sudden loss of effective cardiac output, resulting in collapse and death within minutes without immediate intervention
  • VFib is confirmed on ECG
  • Defibrillation is the definitive method of restoring sinus rhythm and must be used in conjunction with quality CPR and appropriate medications
  • Early recognition and continuous monitoring are key for improving the prognosis
Differential Diagnoses
  1. Asystole
  2. Pulseless ventricular tachycardia (VTach)
  3. Pulseless electrical activity (PEA)
Overview
Aetiology
Clinical Signs
Diagnosis
Treatment
Prevention
Resources
Overview

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Aetiology

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Clinical Signs

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Diagnosis

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Treatment

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Prevention

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Resources

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Educational content only. This factsheet is for general veterinary education and is not a substitute for professional veterinary advice, diagnosis, or treatment. Not for use in an emergency — contact a veterinarian or emergency service. Full disclaimer →