Ventricular fibrillation
Medical term · V
A deadly heart rhythm in which the ventricles contract independently of the atria and in a chaotic manner.
Related terms
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AtriaThe upper chambers of the heart. There are two of these—the right atrium and the left atrium.
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Cardiac arrestThe sudden cessation of contractions capable of circulating blood to the body and brain. Also called sudden cardiac arrest. Cardiac arrest usually occurs as a result of a rapid…
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Ventricular arrhythmiaAbnormal heart rhythm that starts in the lower chambers of the heart; this rhythm disturbance can occur as a complication of a heart attack and impairs the heart's pumping ability.