what is a ventricular fibrillation
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- Ventricular fibrillation is disorderly and irregular electrical activity in the heart’s ventricles. A heart affected by VFib “flutters.” These rapid beats prevent the heart from pumping adequate amounts of blood into the body. VFib is an emergency situation.
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- fibrillation-muscular twitching involving individual muscle fibers acting without coordination. twitch, twitching, vellication-a sudden muscle spasm; especially one caused by a nervous condition. atrial fibrillation-fibrillation of the muscles of the atria of the heart.
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ventricular fibrillation Pathology. a cardiac arrhythmia characterized by rapid, chaotic electrical impulses to the ventricles, incomplete ventricular contractions, and resultant loss of pulse and blood pressure. Examples from the Web for ventricular fibrillation Expand.
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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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Ventricular Fibrillation Ventricular Fibrillation. Ventricular fibrillation (VF) is a condition in which your heart beats in an abnormal rhythm. While your heart typically beats in a regular, steady pattern, VF causes your heart to beat quickly and out of rhythm. This is an emergency condition that may be brought on by a heart attack.hen VF occurs, the two ventricles (chambers) in the lower portion of your heart are not able to pump hard enough to move blood through your body. This makes your blood pressure drop quickly and keeps blood from traveling through your body. As a result, blood cannot get to your vital organs.
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Wolff-Parkinson-White Syndrome (WPW Syndrome) Atrial fibrillation (also referred to as AFib or AF) is the most common type of abnormal heart rhythm. Atrial fibrillation is caused by abnormal electrical discharges (signals) that generate chaotically throughout the upper chambers of the heart (atria).
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Premature ventricular contraction A premature ventricular contraction (PVC)—also known as a premature ventricular complex, ventricular premature contraction (or complex or complexes) (VPC), ventricular premature beat (VPB), or ventricular extrasystole (VES)—is a relatively common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the ...
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- From Wikipedia, the free encyclopedia. Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly.entricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography.
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Atrial Fibrillation Published: January 2014. Atrial fibrillation (AF) is a common heart rhythm disorder in which the electrical impulses in the upper cardiac chambers (atria) degenerate from their usual organized rhythm into a rapid chaotic pattern.
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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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- Ventricular fibrillation (VF) is the the most important shockable cardiac arrest rhythm. The ventricles suddenly attempt to contract at rates of up to 500 bpm. This rapid and irregular electrical activity renders the ventricles unable to contract in a synchronised manner, resulting in immediate loss of cardiac output.
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Ventricular Flutter Versus Ventricular Fibrillation Ventricular flutter and ventricular fibrillation are conditions where the ventricles beat too quickly (tachycardia) or irregularly. These arrhythmias are usually because of an underlying heart disease and they originate in the ventricles of the heart.
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A Visual Guide to Atrial Fibrillation What Is AFib? 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. AFib can be dangerous because it raises your risk of stroke and heart failure.
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Ventricular Fibrillation Home > Conditions & Treatments > Arrhythmia > Ventricular Fibrillation. Ventricular fibrillation is a condition in which the heart's electrical activity becomes disordered. When this happens, the heart's ventricles, the lower chambers that pump blood, contract in a rapid, unsynchronized way. The ventricles flutter rather than beat, causing the heart to pump little or no blood. Ventricular fibrillation is life-threatening and requires prompt treatment. Collapse and sudden cardiac death will follow in minutes unless medical help is provided immediately.
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- Atrial flutter: Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350 contractions per minute). Flutter refers to a rapid vibration or pulsation. The difference between flutter and fibrillation is that flutter is well organized while fibrillation is not. Atrial flutter is a serious and potentially unstable rhythm of the heart. Search MedTerms:
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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. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease is associated with an increased risk of heart failure, dementia, and stroke. It is a type of supraventricular tachycardia. Hypertension and valvular heart disease are the most common alterable risk factors for AF.
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Medications for Atrial Fibrillation What is Atrial Fibrillation: A condition where there is disorganised electrical conduction in the atria, resulting in ineffective pumping of blood into the ventricle. Acronym: AF. The following list of medications are in some way related to, or used in the treatment of this condition.
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Atrial fibrillation or flutter Atrial fibrillation or flutter. Atrial fibrillation or flutter is a common type of abnormal heartbeat. The heart rhythm is fast and most often irregular. When working well, the four chambers of the heart contract (squeeze) in an organized way. Electrical signals direct your heart to pump the right amount of blood for your body's needs.
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VENTRICULAR FIBRILLATION, PAROXYSMAL FAMILIAL, 1; VF1 Ventricular fibrillation (VF) is said to cause more than 300,000 sudden deaths each year in the US alone. In approximately 5 to 12% of cases, there are no demonstrable cardiac or noncardiac causes to account for the episode, which is therefore classified as idiopathic ventricular fibrillation (IVF).
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- Medical Definition of Atrial fibrillation. Atrial fibrillation: An abnormal and irregular heart rhythm in which electrical signals are generated chaotically throughout the upper chambers (atria) of the heart. Many people with atrial fibrillation have no symptoms. Among those who do, the most common symptom is an uncomfortable awareness of the rapid and irregular heartbeat (palpitations). Atrial fibrillation can promote the formation of blood clots that travel from the heart to the brain, resulting in stroke.
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A Complete List of AFib Medications Atrial fibrillation (AFib) is a type of arrhythmia, or abnormal heart rhythm. According to the American Heart Association, it affects about 2.7 million Americans. People with AFib have an irregular beating of the heart’s upper chambers, called the atria. The atria beat out of synch with the lower chambers, called the ventricles. When this happens, not all blood gets pumped out of the heart. This can cause the blood to pool within the atria. Clots can form when the blood pools.
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ECG / EKG Rhythms Ventricular fibrillation occurs when there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. This can happen when the ventricles are excited by multiple pacemakers, which may be the result of hyperirritable myocardial cells.
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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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Ventricular Fibrillation Ventricular fibrillation is life-threatening. Ventricular fibrillation (v-fib for short) is the most serious cardiac rhythm disturbance. The lower chambers quiver and the heart can't pump any blood, causing cardiac arrest. 1  Sudden loss of responsiveness (no response to tapping on shoulders). 2  No normal breathing (the victim is not breathing or is only gasping).
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- 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 with RVR? What is Atrial fibrillation with RVR? Atrial fibrillation with RVR (Rapid Ventricular Response) is a heart condition caused by irregular electrical activity that results in irregular contractions of the heart walls and its chambers.