Definitions for atrial fibrillation
atri·al fib·ril·la·tion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. atrial fibrillationnoun

   fibrillation of the muscles of the atria of the heart

WiktionaryRate this definition:0.0 / 0 votes

1. atrial fibrillationnoun

   A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

WikipediaRate this definition:0.0 / 0 votes

1. Atrial fibrillation

   Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm (arrhythmia) characterized by rapid and irregular beating of the atrial chambers of the heart. It often begins as short periods of abnormal beating, which become longer or continuous over time. It may also start as other forms of arrhythmia such as atrial flutter that then transform into AF. Episodes can be asymptomatic. Symptomatic episodes may involve heart palpitations, fainting, lightheadedness, shortness of breath, or chest pain. Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. It is a type of supraventricular tachycardia.High blood pressure and valvular heart disease are the most common modifiable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In low- and middle-income countries, valvular heart disease is often attributable to rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other risk factors include excess alcohol intake, tobacco smoking, diabetes mellitus, and thyrotoxicosis. However, about half of cases are not associated with any of these aforementioned risks. Healthcare professionals might suspect AF after feeling the pulse and confirm the diagnosis by interpreting an electrocardiogram (ECG). A typical ECG in AF shows irregularly spaced QRS complexes without P waves.Healthy lifestyle changes, such as weight loss in people with obesity, increased physical activity, and drinking less alcohol, can lower the risk for atrial fibrillation and reduce its burden if it occurs. AF is often treated with medications to slow the heart rate to a near-normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can convert AF to normal heart rhythm and is often necessary for emergency use if the person is unstable. Ablation may prevent recurrence in some people. For those at low risk of stroke, AF does not necessarily require blood-thinning though some healthcare providers may prescribe aspirin or an anti-clotting medication. For those at more than low risk, experts generally recommend an anti-clotting medication. Anti-clotting medications include warfarin and direct oral anticoagulants. Most people are at higher risk of stroke. While these medications reduce stroke risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm and, as of 2020, affects more than 33 million people worldwide. As of 2014, it affected about 2 to 3% of the population of Europe and North America. This was an increase from 0.4 to 1% of the population around 2005. In the developing world, about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.1% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 193,300 deaths in 2015, up from 29,000 in 1990. The first known report of an irregular pulse was by Jean-Baptiste de Sénac in 1749. Thomas Lewis was the first doctor to document this by ECG in 1909.

ChatGPTRate this definition:0.0 / 0 votes

1. atrial fibrillation

   Atrial fibrillation is a heart condition characterized by irregular and often excessively rapid heart rate. It occurs when the two upper chambers of the heart, known as atria, beat chaotically and irregularly, out of coordination with the two lower chambers of the heart. This can lead to blood clots, stroke, heart failure, or other heart-related problems.

WikidataRate this definition:0.0 / 0 votes

1. Atrial fibrillation

   Atrial fibrillation is where the signal doesn't originate only from the SA node, and so the atrium doesn't contract simultaneously, causing an incredibly high heart rate, as well as lack of atrial systole. It is the most common cardiac arrhythmia. It may cause no symptoms, but it is often associated with palpitations, fainting, chest pain, or congestive heart failure. However, in some people atrial fibrillation is caused by otherwise idiopathic or benign conditions. AF increases the risk of stroke. The degree of increase can be substantial, depending on the presence of additional risk factors. It may be identified clinically when taking a pulse, and the presence of AF can be confirmed with an electrocardiogram which demonstrates the absence of P waves together with an irregular ventricular rate. In AF, the normal regular electrical impulses generated by the sinoatrial node are overwhelmed by disorganized electrical impulses usually originating in the roots of the pulmonary veins, leading to irregular conduction of impulses to the ventricles which generate the heartbeat. AF may occur in episodes lasting from minutes to days, or be permanent in nature. A number of medical conditions increase the risk of AF, particularly mitral stenosis.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Atrial Fibrillation

   Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.

Matched Categories

1. • Cardiac Arrhythmia
   • Fibrillation

How to pronounce atrial fibrillation?

1. Alex

   US English

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   Mark

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   Libby

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How to say atrial fibrillation in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of atrial fibrillation in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of atrial fibrillation in Pythagorean Numerology is: 8

Examples of atrial fibrillation in a Sentence

1. Lloyd Minor:

   Atrial fibrillation is just the beginning, as this study opens the door to further research into wearable technologies and how they might be used to prevent disease before it strikes.

2. Rafi Walden:

   This evening he felt a slight discomfort and we diagnosed that he has some difficulty with the rhythm of the heart which is called atrial fibrillation. He was taken to hospital ... and this is over already spontaneously without even the need for any treatment.

3. Mitesh Patel:

   The study detected a low rate of atrial fibrillation in the overall population(.052 %) but the rates were higher in older patients with 1.3 % in ages 55 to 64 and 3.14 % in age 65 or older, so future work should consider which populations of patients are most appropriate for this method of screening.

4. Parveen Garg:

   We know a few prime risk factors that are very important, such as obesity, high blood pressure and smoking, but it doesn't explain everything about why we get this condition, we're drawing a link between exhaustion and atrial fibrillation which really hasn't been described before.

5. Gregory Marcus:

   Our results show that the occurrence of atrial fibrillation might be neither random nor unpredictable, instead, there may be identifiable and modifiable ways of preventing an acute heart arrhythmia episode.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=atrial fibrillation
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Atrial_Fibrillation
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Atrial_Fibrillation
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=atrial fibrillation