| Definition of 'ventricular fibrillation' |
Princeton's WordNet |
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1. (noun) ventricular fibrillation
fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest
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| Definition of 'ventricular fibrillation' |
U.S. National Library of Medicine |
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1. ventricular fibrillation
A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.
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Definitions of ventricular fibrillation 
