Ventricular fibrillation

ROBERT IGBEDE

1. VENTRICULAR FIBRILLATION

2. Introduction Fibrillation : It is the quivering due to uncoordinated muscle fiber contraction Ventricular : Refers to the bottom chambers of the heart

3. VFIB Ventricular fibrillation( Vfib or Vf ): this means that the ventricular muscles are not contracting at the same time (in syncytium or in homogeneity) The force required to pump blood throughout the entire body is greatly diminished as a result of VFIB

4. Causes of Vfib This could be due to stress or damage of cardiac tissue that causes this tissue to become structurally or electrically changed. This is known as tissue heterogeneity

5. Cause of tissue heterogeneity 1. M edications and elicit drugs 2. Electrolyte imbalance 3. Ischemia 4. Scar tissue from heart attack 5. External electrical stimulation 6. Premature ventricular contraction (PVC) 7.Functional and anatomical reentry

6. Treatment Defibrillation by energy shock Implantable cardioverter defibrillator (ICD) Medications after event to help reduce the possibility of recurrence in the future

7. C onclusion Vfib is life threatening because major organs in the human system are greatly dependent on the oxygen and nutrients the blood supplies. Organs such as the brain and heart cannot stand oxygen deprivation for very long. People who have this attacks tend to fall unconscious fast and require immediate medical attention