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Atrial Fibrillation

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Definition of the noun atrial fibrillation

What does atrial fibrillation mean as a name of something?


  1. fibrillation of the muscles of the atria of the heart
    • lexical domain: States - nouns denoting stable states of affairs
    • more generic terms: arrhythmia / cardiac arrhythmia = an abnormal rate of muscle contractions in the heart; fibrillation = muscular twitching involving individual muscle fibers acting without coordination

Alternative definition of the noun atrial fibrillation


  1. A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.
    • synonym: AF

Specialised definition of the noun atrial fibrillation

Glossary of healthcare

a chaotic rhythm of the heart that causes the two upper chambers of the heart (atria) to beat rapidly and irregularly; only part of the contraction reaches the lower chamber (ventricles)

  • note: The condition can cause an increased risk of blood clots and stroke.


Atrial Fibrillation: A supraventricular arrhythmia characterized by uncoordinated atrial myocardium activation due to multiple reentry circuits with consequent deterioration of atrial mechanical function. Instead of intermittently contracting, the atria quiver continuously in a chaotic pattern, causing a totally irregular, often tachycardia ventricular rate. On the ECG it is described by the replacement of consistent P waves by rapid oscillations or fibrillatory waves that vary in size, shape, and timing, associated with an irregular, frequently rapid ventricular response when atrioventricular conduction is intact.

Printed dictionaries and other books with definitions for Atrial Fibrillation

Click on a title to look inside that book (if available):

Google previewEncyclopedia of Human Genetics and Disease (2012)

by Evelyn B. Kelly

Atrial fibrillation is a common disorder affecting more than three million people. Many of those affected can trace the condition to a grandmother or great-uncle. Although no exact studies of prevalence exist, studies suggest that more than 30 % ...

Google previewChronic Diseases: An Encyclopedia of Causes, Effects, and Treatments [2 volumes] (2016)

by Jean Kaplan Teichroew

To prevent atrial fibrillation and its consequences, avoidance of binge drinking and frequent checkups or self-screening of one's pulse twice a year are important . A normal pulse is between 60 and 100 beats per minute and is strong and ...

Google previewDictionary Of Anatomy & Physio (2000)

by Poly Mary

Atrial fibrillation is asynchronous contraction of the atrial muscles that causes the atria to contract irregularly and still faster.

Google previewJablonski's Dictionary of Medical Acronyms & Abbreviations (2008)

by Stanley Jablonski

AFF atrial fibrillation andflutter; atrialfilling fraction aff afferent AFFIRM Atrial Fibrillation Follow-Up Investigation of Rhythm Management AFFN acrofrontofacionasal [dysostosis] AFG abnormal fastingglucose; ...

Google previewAlternative Dictionary Of Symptoms And Cures (2013)

A Comprehensive Guide to Diseases and Their Orthodox and Alternative Remedies by Dr Caroline Shreeve

Atrial fibrillation is a relatively common cardiac arrhythmia (see irregular HEART RHYTHM), and it can be diagnosed by an 'irregularly irregular' pulse—Le. a pulse with no discernible pattern or rhythm to it.

Google previewMosby's Dictionary of Medicine, Nursing and Health Professions - Australian & New Zealand Edition (2014)

by Peter Harris, Sue Nagy, Nicholas Vardaxis

atrial fibrillation (AF ) /ƗމtrƝāۑl/, a cardiac arrhythmia characterised by disorganised electrical activity in the atria, accompanied by a usually rapid, irregular ventricular response.

Google previewConcise Dictionary of Modern Medicine (2010)

by Joseph Segen

EKG Rt axis deviation and incomplete Rt BBB; normal rhythm for first 3 decades, then–atrial fibrillation, SVT clinical shortness of breath, fatigue on exertion, palpitations, flowed by SVTs, Rt heart failure, paradoxical embolism, recurrent lung ...

Google previewEncyclopedia of Molecular Mechanisms of Disease (2009)

With 213 Tables by Florian Lang

The most common arrhythmias seen in adults who have had surgical repair of atrial septal defects are atrial flutter and atrial fibrillation [1]. Approximately 60% of these patients will develop atrial flutter or ...

Google previewDorland's Dictionary of Medical Acronyms and Abbreviations (2015)

by Dorland

amniotic fluid; angiogenesis factor; anteflexion; anterior fontanelle; antibody forming; antifog; antifungal; antral follicle; aortic flow; Arthritis Foundation; neoplasia; aseptic artificial feeding; ascitic fluid; atrial fibrillation; atrial flutter; atrial fusion; ...

Google previewThe Complete Encyclopedia of Medicine & Health (2006)

by J. P. Schadé

These drugs are used to treat ventricular premature beats, ventricular tachycardia , and ventricular fibrillation and to convert atrial fibrillation to normal rhythm ( cardioversion). - Selected side effects Arrhythmias (which can be fatal, particularly in ...

Google previewLexicon of Psychiatry, Neurology, and the Neurosciences (2000)

by Frank J. Ayd

-induced atrial fibrillation occurred in a 60-year-old man who, before starting CLOZ therapy, had a normal sinus rhythm on electrocardiography (ECG).

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Atrial Fibrillation

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Small photo of Open heart surgery. Ablation of the mouths of hollow veins, plastic mitral valve when mitral regurgitation and atrial fibrillation. Rare surgery. Professional information.Small photo of CT scan of the brain, case of old CVA (Cerebrovascular Accident), Atrial Fibrillation (AF) and Dilated cardiomyopathy (DCM)Small photo of CT scan of the brain, case of old CVA (Cerebrovascular Accident), Atrial Fibrillation (AF) and Dilated cardiomyopathy (DCM)Small photo of CT scan of the brain, case of old CVA (Cerebrovascular Accident), Atrial Fibrillation (AF) and Dilated cardiomyopathy (DCM)Small photo of Atrial fibrillation (heart disorder) diagnosis medical concept on tablet screen with stethoscope.Small photo of Emergency cardiology. ECG with supraventricular extrasystole and short paroxysm of atrial fibrillationSmall photo of ablation tools to improve atrial fibrillation with radiofrequency energy catheters for navigation systems enable cardiac electrophysiologists to map the pathways of complex arrhythmias More...

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