Definitions for ventricular fibrillation

This page provides all possible meanings and translations of the word ventricular fibrillation

Princeton's WordNet

  1. ventricular fibrillation(noun)

    fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest

Wiktionary

  1. ventricular fibrillation(Noun)

    Condition where the cardiac muscle is contracted irregularly and rapidly.

Freebase

  1. Ventricular fibrillation

    Ventricular fibrillation is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole. This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death will result in a matter of minutes. If the patient is not revived after a sufficient period, the patient could sustain irreversible brain damage and possibly become brain dead due to the effects of cerebral hypoxia. On the other hand, death often occurs if normal sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.

U.S. National Library of Medicine

  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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