what is a fibrillation
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fibrillation Fibrillation is usually described by the part that is contracting abnormally, such as atrial fibrillation or ventricular fibrillation. Cardiology Unsynchronized random and continuously changing electrical activity in the myocardium, causing inefficient pumping of blood.
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Congestive Heart Failure Atrial Fibrillation www.lifescript.com/health/a-z/mayo/a/atrial_fibrillation.aspx. b> Definition Atrial fibrillation is an irregular and often rapid heart rate that commonly causes poor blood flow to the body. During atrial fibrillation, the heart's ... heart to a normal rhythm.
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atrial fibrillation atrial fibrillation (āˑ·trē· l fi·bri·lāˑ·sh n), n quick uncoordinated twitching movements of the muscles of the atria of the heart; may result in a lack of regular pulse and lowered circulation.
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atrial fibrillation atrial fibrillation (AF) a cardiac arrhythmia characterized by disorganized electrical activity in the atria accompanied by an irregular ventricular response that is usually rapid. The atria quiver instead of pumping in an organized fashion, resulting in compromised ventricular filling and reduced stroke volume.
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Atrial Fibrillation  (AF) Atrial fibrillation (A-tre-al fi-bri-LA-shun), or AF, is the most common type of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat.During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.AF occurs if rapid, disorganized electrical signals cause the heart 's two upper chambers-called the atria (AY-tree-uh) - to fibrillate.n arrhythmia is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. AF occurs if rapid, disorganized electrical signals cause the heart 's two upper chambers-called the atria (AY-tree-uh) - to fibrillate.
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A Visual Guide to Atrial Fibrillation Atrial fibrillation is a condition that disrupts your heartbeat. A glitch in the heart’s electrical system makes its upper chambers (the atria) beat so fast they quiver, or fibrillate. This causes the lower chambers (the ventricles) to beat out of sync.ot a Normal Heart Rhythm or Rate. Usually the atria and ventricles work together so the heart pumps blood in steady rhythm. But in AFib, they don't. The irregular beats can cause a fast, fluttering heart rate -- 100-175 beats per minute -- instead of the normal 60-100 beats per minute.
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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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ventricular fibrillation When the ventricles begin to quiver and do not employ coordinated contractions, the heart is said to be fibrillating. In this condition the ventricles cannot pump blood from the heart. Ventricular fibrillation (V-fib) is the worst kind of abnormal heart rhythm, and is a form of cardiac arrest. It involves the pumping of the lower chambers of the heart, while atrial fibrillation involves the upper chambers.
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Atrial Fibrillation (AFib) Symptoms, ECG, and Treatment Medications 1 Atrial fibrillation (also referred to as AFib) is the most common type of abnormal heart rhythm.  AFib is caused by abnormal electrical discharges (signals) that generate chaotically throughout the upper chambers of the heart (atria).
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What is Atrial Fibrillation (AFib or AF)? Updated:Feb 6,2017. 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. At least 2.7 million Americans are living with AFib. Here’s how patients have described their experience:
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- what is atrial fibrillation atrial fibrillation a tre al fi bri la shun or af is the most common type of arrhythmia ah rith me ah an arrhythmia is a problem with the rate or rhythm of the heartbeat during an arrhythmia the heart can beat too fast too slow or with an irregular rhythm af occurs if rapid disorganized electrical signals cause the heart s two upper chambers called the atria ay tree uh to fibrillate
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Chapter 6 Fluid and Hemodynamic Terms ventricular fibrillation - fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest. arrhythmia, cardiac arrhythmia - an abnormal rate of muscle contractions in the heart.
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- In atrial fibrillation (AFib), the heart’s two small upper chambers (atria) don’t beat the way they should. Instead of beating in a normal pattern, the atria beat irregularly and too fast, quivering like a bowl of gelatin. It’s important for the heart to pump properly so your body gets the oxygen and food it needs. What Is Atrial Fibrillation? Cardiovascular Conditions Your heart has a natural pacemaker, called the “sinus node,” that makes electrical signals. These signals cause the heart to contract and pump blood. With atrial fibrillation, random electrical activity interrupts the normal conduction rhythm. This prevents the atria from properly contracting.
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- Atrial fibrillation (also referred to as AF or AFib) is the most common type of irregular heartbeat. It is found in about 2.2 million Americans. Its frequency increases with age. If you have AF, the electrical impulse does not travel in an orderly fashion through the atria.ou may have atrial fibrillation without having any symptoms at all. If you have symptoms, they may include: 1  Heart palpitations (a sudden pounding, fluttering, or racing feeling in the chest). 2  Fatigue or lack of energy. 3  Dizziness (feeling faint or light-headed).
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Atrial Fibrillation and Flutter Atrial Fibrillation and Flutter. Definition. Atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles, or lower chambers of the heart. In atrial fibrillation, the atria quiver chaotically and the ventricles beat irregularly.
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Atrial Fibrillation (AFib) Atrial fibrillation (also referred to as AFib, Afib, A-fib, and AF) is an irregular and often rapid heart rhythm. The irregular rhythm, or arrhythmia, results from abnormal electrical impulses in the upper chambers (atria, singular=atrium) of the heart that cause the heartbeat (ventricle contraction) to be irregular and usually fast.
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Types of Arrhythmias Atrial fibrillation (AF or AFib) is the most common abnormal heart rhythm. Atrial fibrillation is an irregular, frequently rapid heart rhythm originating in the atria (top chambers of the heart).
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Introduction Introduction. Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate. A normal heart rate should be regular and between 60 and 100 beats a minute when you're resting.You can measure your heart rate by feeling the pulse in your neck or wrist.ntroduction. Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate. A normal heart rate should be regular and between 60 and 100 beats a minute when you're resting.
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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 (AFib) Symptoms, ECG, and Treatment Medications Atrial fibrillation is an abnormal and irregular heart rhythm in which the electrical signals are generated chaotically throughout the upper atria (chambers) of the heart. Many people with this condition have no signs or symptoms (asymptomatic). It is the most common supraventricular tachycardia.
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A Visual Guide to Atrial Fibrillation Atrial fibrillation is a condition that disrupts your heartbeat. A glitch in the heart’s electrical system makes its upper chambers (the atria) beat so fast they quiver, or fibrillate. This causes the lower chambers (the ventricles) to beat out of sync.
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- Atrial fibrillation (A-fib) is a type of cardiac arrhythmia, or irregular heartbeat. In a healthy heart, blood moves into your atria and then into your ventricles. The ventricles are the lower chambers of your heart. From there, blood flows around your body and back to your heart.
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A Look at Paroxysmal Atrial Fibrillation You may be experiencing paroxysmal atrial fibrillation. Atrial fibrillation (AF or AFib) occurs when the atria (upper chambers of the heart) lose their normal rhythm and beat chaotically. When this happens, blood isn’t flowing through the heart and body efficiently. This inefficient flow can cause blood to pool inside the atria, increasing the risk of blood clots.