Fibrillation, atrial
An abnormal irregular heart rhythm whereby electrical signals are generated chaotically throughout the upper chambers (atria) of the heart. Although many persons with atrial fibrillation have no symptoms, the most common symptom is palpitations, an uncomfortable awareness of the rapid and irregular heartbeat. Atrial fibrillation can cause blood clots that travel from the heart to the brain, causing stroke. Treatment of atrial fibrillation involves controlling the risk factors, medications to slow the heart rate and/or convert the heart to normal rhythm, and preventing complications of blood clotting.

Medical dictionary. 2011.

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  • 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

  • Atrial fibrillation — | MeshID = D001281 Atrial fibrillation (AF or afib) is a cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart. It can often be identified by taking a pulse and observing that the heartbeats don t… …   Wikipedia

  • Fibrillation Auriculaire — Pour les articles homonymes, voir FA. Nom du symptôme/signe : Fibrillation auriculaire Code CIM 10 : I48 La fibrillation auriculaire (FA) est le plus fréquent des …   Wikipédia en Français

  • Atrial flutter — is an abnormal heart rhythm that occurs in the atria of the heart. When it first occurs, it is usually associated with a fast heart rate or tachycardia, and falls into the category of supra ventricular tachycardias. While this rhythm occurs most… …   Wikipedia

  • Atrial fibrillation with rapid ventricular response — (afib with RVR) is a type of abnormally fast heart rate (tachyarrhythmia) that may present as a medical emergency. It may be considered a form of supraventricular tachycardia(SVT). It is characterized by chaotic atrial activity known as atrial… …   Wikipedia

  • atrial fibrillation — n very rapid uncoordinated contractions of the atria of the heart resulting in a lack of synchronism between heartbeat and pulse beat called also auricular fibrillation * * * see fibrillation * * * (AF) (AFib) an arrhythmia in which minute areas… …   Medical dictionary

  • 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 auriculaire — Pour les articles homonymes, voir FA. Fibrillation auriculaire Classification et ressources externes La fibrillation auriculaire (FA) est le plus fréquent des troubles du rythme cardiaque. Elle fait partie des troubles du rythme supra… …   Wikipédia en Français

  • atrial fibrillation — Irregular rhythm (arrhythmia) of contraction of the atria (upper heart chambers). The most common major arrhythmia, it may result as a consequence of increased fibrous tissue in the aging heart, of heart disease, or in association with severe… …   Universalium

  • 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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