Ventricular fibrillation
An abnormal irregular heart rhythm whereby there are very rapid uncoordinated fluttering contractions of the lower chambers (ventricles) of the heart. Ventricular fibrillation disrupts the synchrony between the heartbeat and the pulse beat. Ventricular fibrillation is most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack. It is life threatening. Ventricular fibrillation is most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack. It is life threatening.

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ventricular fibrillation n very rapid uncoordinated fluttering contractions of the ventricles of the heart resulting in loss of synchronization between heartbeat and pulse beat abbr. VF,{{}}V-fib

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(VF) (VFib) an arrhythmia characterized by fibrillary contractions of the ventricular muscle because of rapid repetitive excitation of myocardial fibers without coordinated contraction of the ventricle; it is an expression of randomized circus movement or of an ectopic focus with a very rapid cycle.

Ventricular fibrillation, characterized by an irregular undulating baseline.


Medical dictionary. 2011.

Look at other dictionaries:

  • Ventricular fibrillation — Infobox Disease Name = PAGENAME Caption = ECG lead showing VF DiseasesDB = ICD10 = ICD10|I|49|0|i|40 ICD9 = ICD9|427.41 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D014693 Ventricular fibrillation (V fib or VF) is a… …   Wikipedia

  • ventricular fibrillation — Pathol. a cardiac arrhythmia characterized by rapid, chaotic electrical impulses to the ventricles, incomplete ventricular contractions, and resultant loss of pulse and blood pressure. * * * Uncoordinated contraction of the muscle fibres of the… …   Universalium

  • ventricular fibrillation — noun fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest • Hypernyms: ↑fibrillation, ↑cardiac arrhythmia, ↑arrhythmia * * * noun : very rapid uncoordinated… …   Useful english dictionary

  • ventricular fibrillation — VF; see fibrillation …   The new mediacal dictionary

  • ventricular fibrillation — noun Condition where the cardiac muscle is contracted irregularly and rapidly …   Wiktionary

  • ventricular fibrillation — /vɛnˌtrɪkjələ fɪbrəˈleɪʃən/ (say ven.trikyuhluh fibruh layshuhn) noun a cardiac arrhythmia, in which the ventricles of the heart are fibrillating, thus causing ineffective contraction; fatal unless normal rhythm is restored …   Australian English dictionary

  • Ventricular tachycardia — Classification and external resources ICD 10 I …   Wikipedia

  • Fibrillation — is the rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart. There are two major classes of fibrillation, atrial fibrillation and ventricular fibrillation.* Atrial fibrillation can be a chronic condition, usually… …   Wikipedia

  • Fibrillation — ist ein medizinischer Fachausdruck aus der englischen Literatur, der im Deutschen weniger geläufig ist. In der Medizin bezeichnet er spontane Zuckungen einzelner Muskelfasern der Skelettmuskulatur.[1] In der Kardiologie bezieht sich die… …   Deutsch Wikipedia

  • Fibrillation — In matters of the heart (cardiology), fibrillation is incoordinate twitching of the heart muscle fibers. The difference between fibrillation and flutter is that fibrillation is not well organized while flutter is. For example, atrial flutter is… …   Medical dictionary

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