atrial fibrillation definition
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What is Atrial Fibrillation? According to Medilexicon's medical dictionary, atrial fibrillation is fibrillation in which the normal rhythmic contractions of the cardiac atria are replaced by rapid irregular twitchings of the muscular wall; the ventricles respond irregularly to the dysrhythmic bombardment from the atria..
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What is Atrial Fibrillation (AFib or AF)? Updated:Dec 10,2014. Atrial fibrillation (also called AFib or AF) is a quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related complications. Some people refer to AF as a quivering heart. An estimated 2.7 million Americans are living with AF. Here’s how patients have described their experience: “My heart flip-flops, skips beats, and feels like it’s banging against my chest wall, especially if I’m carrying stuff up my stairs or bending down.”.
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- Atrial fibrillation (AF) is an irregular and often rapid heartbeat that is caused by disorganized electrical activity. Normally the pumping of the heart is initiated at the upper portion of the heart and sent downward in a regular pattern, resulting in the typical heartbeat.
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- Atrial flutter is an abnormality in the beating of the heart. Such abnormalities, whether in the rhythm or speed of the heartbeat, are known as arrhythmias. The heart is a muscle that pumps the blood through the body.
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Atrial fibrillation Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating.Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms.trial fibrillation and a corresponding enlargement of the left atrium may cause an increase in size of the mitral valve annulus. With a sinus rhythm, the mitral annulus undergoes dynamic changes during the cardiac cycle. For example, at the end of diastole the annular area is smaller than at the end of systole.
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Atrial fibrillation Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms.
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Lone atrial fibrillation: Prognostic differences between paroxysmal and chronic forms after 10 years of follow-up â ââ Background Lone atrial fibrillation (LAF) is defined by the presence of atrial fibrillation unassociated with other evidence of organic heart disease. There are conflicting data concerning the prognostic importance, rate of embolic complications, and survival in subjects affected by this arrhythmia.
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Atrial fibrillation An irregular pulse could be a sign that you have an abnormal heart rhythm. Atrial Fibrillation (AF) is one of the most common forms of abnormal heart rhythm and a major cause of stroke. Normally, your heart’s natural pacemaker sends out regular electrical impulses. AF happens when those impulses fire off from different places in the atria (the top chambers of the heart) in a disorganised way.
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- Atrial fibrillation (AFib) facts. 1  Atrial fibrillation (also referred to as AFib) is the most common type of abnormal heart rhythm. 2  AFib is caused by abnormal electrical discharges (signals) that generate chaotically throughout the upper chambers of the heart (atria).
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- Atrial Fibrillation Quick Overview. 1  Atrial fibrillation (AFib) is an irregular heartbeat (arrhythmia) often, but not always, resulting in a fast heart beat (greater than 100 bpm) at rest. 2  Causes of AFib are numerous; for example:
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How does digoxin treat atrial fibrillation? Atrial fibrillation (AF or A-Fib) is a heart rhythm disturbance, that causes an irregular and often very rapid, fluttering heart rate (heart palpitations). A-Fib occurs when the upper chambers of the heart (the atria) beat chaotically and out of sync with the lower chambers (the ventricles).
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Atrial flutter Atrial flutter (AFL) 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 (beats over 100 per minute), and falls into the category of supra-ventricular tachycardias.hile atrial flutter can sometimes go unnoticed, its onset is often marked by characteristic sensations of regular palpitations. Such sensations usually last until the episode resolves, or until the heart rate is controlled.
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- Atrial flutter (AFL) is a common abnormal heart rhythm, similar to atrial fibrillation, the most common abnormal heart rhythm. Both conditions are types of supraventricular (above the ventricles) tachycardia (rapid heart beat).
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Atrial Fibrillation (AFib) 1 Atrial fibrillation (AFib) is an irregular heartbeat (arrhythmia) often, but not always, resulting in a fast heart beat (greater than 100 bpm) at rest. 2  Causes of AFib are numerous; for example:  overactive thyroid,
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A Look at Paroxysmal Atrial Fibrillation If so, you may have atrial fibrillation. Atrial fibrillation occurs when the atria, or upper chambers of the heart, lose their normal rhythm and beat chaotically. It’s commonly known as AF or AFib. When it happens, blood doesn’t flow through the heart and body efficiently.
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Atrial flutter Atrial flutter. Atrial flutter (AFL) is a common abnormal heart rhythm that starts in the atrial chambers of the heart.[1] When it first occurs, it is usually associated with a fast heart rate (100 or more heartbeats per minute),[2] and is classified as a type of supra-ventricular tachycardia.
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What is Atrial Fibrillation (AFib or AF)? Updated:Dec 10,2014. Atrial fibrillation (also called AFib or AF) is a quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related complications. Some people refer to AF as a quivering heart. An estimated 2.7 million Americans are living with AF.
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Atrial Flutter Atrial flutter is an abnormality in the beating of the heart. Such abnormalities, whether in the rhythm or speed of the heartbeat, are known as arrhythmias. The heart is a muscle that pumps the blood through the body. Each beat of the heart is a very rapid series of two contractions.
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- When you have a shape which is X metres by Y metres, you multiply the X by the Y and the result is the area of the shape in square metres. Imagine a shape 5 metres by 3 metr … es. 3 x 5 = 15 square metres.
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fibrillation ventricular fibrillation cardiac arrhythmia marked by fibrillary contractions of the ventricular muscle due to rapid repetitive excitation of myocardial fibers without coordinated ventricular contraction and by absence of atrial activity.
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Atrial fibrillation Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005.
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Atrial Fibrillation: Diagnosis and Treatment Atrial fibrillation is the most common cardiac arrhythmia. It impairs cardiac function and increases the risk of stroke. The incidence of atrial fibrillation increases with age. Key treatment issues include deciding when to restore normal sinus rhythm, when to control rate only, and how to prevent thromboembolism. Rate control is the preferred management option in most patients.
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Fibrillation There are two major classes of cardiac fibrillation: atrial fibrillation and ventricular fibrillation. 1  Atrial fibrillation is an irregular and uncoordinated contraction of the cardiac muscle of atria. 2  Ventricular fibrillation is an irregular and uncoordinated contraction of the cardiac muscle of ventricles. It is a common cause of cardiac arrest and is usually fatal if not reversed by defibrillation.
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ATRIAL FIBRILLATION (A-FIB) In Atrial Fibrillation (A-Fib) the upper part of your heart beats (quivers) faster than the rest of your heart. If you could look inside your chest, the top part of your heart would be shaking like Jell-O or beating more rapidly than the lower section of your heart.
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- Atrial Fibrillation and Flutter. Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...
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Epidemiology and Management of New-Onset Atrial Fibrillation Atrial fibrillation (AF) is a common acute or chronic cardiac disorder that can result in significant morbidity and mortality. Its incidence in the United States is increasing. Projections suggest that more than 5.6 million Americans (50% of whom will be ≥80 years of age) will have AF by 2050.