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Atrial fibrillation
Other names	Auricular fibrillation
Electrocardiogram samples displaying atrial fibrillation in the upper recording with absence of P waves (red arrow), an erratic baseline between QRS complexes, and elevated heart rate. Bottom recording shows normal sinus rhythm with P waves (purple arrow)
Specialty	Cardiology
Symptoms	None, heart palpitations, fainting, dizziness, decreased level or total loss of consciousness, shortness of breath, chest pain
Complications	Heart failure, dementia, stroke
Usual onset	> age 50
Risk factors	High blood pressure, valvular heart disease, coronary artery disease, cardiomyopathy, congenital heart disease, COPD, obesity, smoking, sleep apnea
Diagnostic method	Feeling the pulse, electrocardiogram
Differential diagnosis	Irregular heartbeat
Treatment	Lifestyle modifications, rate control, rhythm control, anticoagulation
Frequency	3.5% (developed world), 1.5% (developing world)
Deaths	315,000 with atrial flutter (2019)

Atrial fibrillation (AF, AFib 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, loss of consciousness, 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.

Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. Pulmonary vein isolation by transcatheter ablation can restore sinus rhythm. The ganglionated plexi (autonomic ganglia of the heart atrium and ventricles) can also be a source of atrial fibrillation, and is sometimes also ablated for that reason. Not only the pulmonary vein, but the left atrial appendage can be a source of atrial fibrillation and is also ablated for that reason. As atrial fibrillation becomes more persistent, the junction between the pulmonary veins and the left atrium becomes less of an initiator and the left atrium becomes an independent source of arrhythmias.

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. Cortisol and other stress biomarkers (including vasopressin, chromogranin A, and heat shock proteins), as well as emotional stress, may play a role in the pathogenesis of atrial fibrillation.

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. Moreover, thyrotoxicosis seems to be an especially rare risk factor. 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 AF 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 an anti-clotting medication. Most people with AF are at higher risk of stroke. For those at more than low risk, experts generally recommend an anti-clotting medication. Anti-clotting medications include warfarin and direct oral anticoagulants. 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.

Signs and symptoms

AF is usually accompanied by symptoms related to a rapid heart rate. Rapid and irregular heart rates may be perceived as the sensation of the heart beating too fast, irregularly, or skipping beats (palpitations) or exercise intolerance and occasionally may produce anginal chest pain (if the high heart rate causes the heart's demand for oxygen to increase beyond the supply of available oxygen). Other possible symptoms include congestive heart failure symptoms such as fatigue, shortness of breath, or swelling. Loss of consciousness can also occur on atrial fibrillations due to lack of oxygen and blood to the brain. The abnormal heart rhythm (arrhythmia) is sometimes only identified with the onset of a stroke or a transient ischemic attack (TIA). It is not uncommon for a person to first become aware of AF from a routine physical examination or electrocardiogram, as it often does not cause symptoms.

Since most cases of AF are secondary to other medical problems, the presence of chest pain or angina, signs and symptoms of hyperthyroidism (an overactive thyroid gland) such as weight loss and diarrhea, and symptoms suggestive of lung disease can indicate an underlying cause. A history of stroke or TIA, as well as high blood pressure, diabetes, heart failure, or rheumatic fever, may indicate whether someone with AF is at a higher risk of complications.

Rapid heart rate

Presentation is similar to other forms of rapid heart rate and may be asymptomatic. Palpitations and chest discomfort are common complaints. The rapid uncoordinated heart rate may result in reduced output of blood pumped by the heart (cardiac output), resulting in inadequate blood flow, and therefore oxygen delivery to the rest of the body. Common symptoms of uncontrolled atrial fibrillation may include shortness of breath, shortness of breath when lying flat, dizziness, and sudden onset of shortness of breath during the night. This may progress to swelling of the lower extremities, a manifestation of congestive heart failure. Due to inadequate cardiac output, individuals with AF may also complain of lightheadedness.

AF can cause respiratory distress due to congestion in the lungs. By definition, the heart rate will be greater than 100 beats per minute. Blood pressure may be variable, and often difficult to measure as the beat-by-beat variability causes problems for most digital (oscillometric) non-invasive blood pressure monitors. For this reason, when determining the heart rate in AF, direct cardiac auscultation is recommended. Low blood pressure is most concerning, and a sign that immediate treatment is required. Many of the symptoms associated with uncontrolled atrial fibrillation are a manifestation of congestive heart failure due to the reduced cardiac output. The affected person's respiratory rate often increases in the presence of respiratory distress. Pulse oximetry may confirm the presence of too little oxygen reaching the body's tissues, related to any precipitating factors such as pneumonia. Examination of the jugular veins may reveal elevated pressure (jugular venous distention). Examination of the lungs may reveal crackles, which are suggestive of pulmonary edema. Examination of the heart will reveal a rapid irregular rhythm.

Causes

AF is linked to several forms of cardiovascular disease but may occur in otherwise normal hearts. Cardiovascular factors known to be associated with the development of AF include high blood pressure, coronary artery disease, mitral valve stenosis (e.g., due to rheumatic heart disease or mitral valve prolapse), mitral regurgitation, left atrial enlargement, hypertrophic cardiomyopathy, pericarditis, congenital heart disease, and previous heart surgery. People with congenital heart disease tend to develop atrial fibrillation at a younger age, that is more likely to be of right atrial origin (atypical) than of left origin, and have a greater risk of progressing to permanent atrial fibrillation.

Additionally, lung diseases (such as pneumonia, lung cancer, pulmonary embolism, and sarcoidosis) may play a role in certain people. Sepsis also increases the risk of developing new-onset atrial fibrillation. Disorders of breathing during sleep, such as obstructive sleep apnea (OSA), are also associated with AF. OSA, specifically, was found to be a very strong predictor of atrial fibrillation. Patients with OSA were shown to have an increased incidence of atrial fibrillation and a study done by Gami et al. demonstrated that increased nocturnal oxygen desaturation from OSA severity was correlated with higher incidences of atrial fibrillation. Obesity is a risk factor for AF. Hyperthyroidism and subclinical hyperthyroidism are associated with AF development.

Caffeine consumption does not appear to be associated with AF; excessive alcohol consumption ("binge drinking" or "holiday heart syndrome") is linked to AF. Low-to-moderate alcohol consumption also appears to be associated with an increased risk of developing atrial fibrillation, although the increase in risk associated with drinking less than two drinks daily appears to be small. Tobacco smoking and secondhand tobacco smoke exposure are associated with an increased risk of developing atrial fibrillation. Long-term endurance exercise that far exceeds the recommended amount of exercise (e.g., long-distance cycling or marathon running) appears to be associated with a modest increase in the risk of atrial fibrillation in middle-aged and elderly people.

Major stress biomarkers (including cortisol and heat shock proteins) indicate that stress plays a significant role in causing atrial fibrillation. There is some evidence that night shift working may be linked to a diagnosis of AF.

Atrial fibrillation is associated with elevated levels of inflammatory markers and clotting factors. Mendelian randomization indicates a causal relationship of inflammation leading to atrial fibrillation.

Genetics

Family history in a first degree relative is associated with a 40% increase in risk of AF. This finding led to the mapping of different loci such as 10q22-24, 6q14-16 and 11p15-5.3 and discover mutations associated with the loci. Mutations have been found in the genes of K channels and Na channels which affect the processes of polarization-depolarization of the myocardium, cellular hyper-excitability, shortening of effective refractory period favoring re-entries.

Using genome-wide association study (GWAS), which screen the entire genome for single nucleotide polymorphism (SNP), three susceptibility loci have been found for AF (4q25, 1q21 and 16q22). In these loci there are SNPs associated with a 30% increase in risk of recurrent atrial tachycardia after ablation. There are also SNPs associated with loss of function of the Pitx2c gene (involved in cellular development of pulmonary valves), responsible for re-entries. There are also SNPs close to ZFHX3 genes involved in the regulation of Ca. A 2018 meta-analysis of GWAS studies identified 97 locis associated with AF, of which 70 were newly identified associations: they are associated with genes that encode transcription factors, such as TBX3 and TBX5, NKX2-5 or PITX2, involved in the regulation of cardiac conduction, modulation of ion channels and in cardiac development.

Sedentary lifestyle

A sedentary lifestyle increases the risk factors associated with AF, such as obesity, hypertension, or diabetes mellitus. This favors remodeling processes of the atrium due to inflammation or alterations in the depolarization of cardiomyocytes by elevation of sympathetic nervous system activity. A sedentary lifestyle is associated with an increased risk of AF compared to physical activity. In both men and women, the practice of moderate exercise reduces the risk of AF progressively; intense sports may increase the risk of developing AF, as seen in athletes. It is due to a remodeling of cardiac tissue, and an increase in vagal tone, which shortens the effective refractory period (ERP) favoring re-entries from the pulmonary veins.

Tobacco

The rate of AF in smokers is 1.4 times higher than in non-smokers. Snus consumption, which delivers nicotine at a dose equivalent to that of cigarettes, is not correlated with AF.

Alcohol

Acute alcohol consumption can directly trigger an episode of atrial fibrillation. Regular alcohol consumption also increases the risk of atrial fibrillation in several ways. The long-term use of alcohol alters the physical structure and electrical properties of the atria. Alcohol consumption does this by repeatedly stimulating the sympathetic nervous system, increasing inflammation in the atria, raising blood pressure, lowering the levels of potassium and magnesium in the blood, worsening obstructive sleep apnea, and by promoting harmful structural changes (remodeling) in the atria and ventricles of the heart. This remodeling leads to abnormally increased pressure in the left atrium, inappropriately dilates it, and increases scarring (fibrosis) in the left atrium. The aforementioned structural changes increase the risk of developing atrial fibrillation when paired with the harmful changes in how the left atrium conducts electricity.

High blood pressure (hypertension)

In patients with hypertension prevalence rates reportedly range from 49% to 90%. According to the CHARGE Consortium, both systolic and diastolic blood pressure are predictors of the risk of AF. Systolic blood pressure values close to normal limit the increase in the risk associated with AF. Diastolic dysfunction is also associated with AF, which increases left atrial pressure, left atrial volume, size, and left ventricular hypertrophy, characteristic of chronic hypertension. All atrial remodeling is related to heterogeneous conduction and the formation of re-entrant electric conduction from the pulmonary veins.

Other diseases

There is a relationship between risk factors such as obesity and hypertension, with the appearance of diseases such as diabetes mellitus and sleep apnea-hypopnea syndrome, specifically, obstructive sleep apnea (OSA). These diseases are associated with an increased risk of AF due to their remodeling effects on the left atrium.

Medications

Several medications are associated with an increased risk of developing atrial fibrillation. Few studies have examined this phenomenon, and the exact incidence of medication-induced atrial fibrillation is unknown. Medications that are commonly associated with an increased risk of developing atrial fibrillation include dobutamine and the chemotherapy agent cisplatin. Agents associated with a moderately increased risk include nonsteroidal anti-inflammatory drugs (e.g., ibuprofen), bisphosphonates, and other chemotherapeutic agents such as melphalan, interleukin 2, and anthracyclines. Other medications that rarely increase the risk of developing atrial fibrillation include adenosine, aminophylline, corticosteroids, ivabradine, ondansetron, and antipsychotics. This form of atrial fibrillation occurs in people of all ages but is most common in the elderly, in those with other atrial fibrillation risk factors, and after heart surgery.

Pathophysiology

The normal electrical conduction system of the heart allows electrical impulses generated by the heart's own pacemaker (the sinoatrial node) to spread to and stimulate the muscular layer of the heart (myocardium) in both the atria and the ventricles. When the myocardium is stimulated it contracts, and if this occurs in an orderly manner allows blood to be pumped to the body. In AF, the normal regular electrical impulses generated by the sinoatrial node are overwhelmed by disorganized electrical waves, usually originating from the roots of the pulmonary veins. These disorganized waves conduct intermittently through the atrioventricular node, leading to irregular activation of the ventricles that generate the heartbeat.

Pathology

The primary pathologic change seen in atrial fibrillation is the progressive fibrosis of the atria. This fibrosis is due primarily to atrial dilation; however, genetic causes and inflammation may be factors in some individuals. Dilation of the atria can be due to almost any structural abnormality of the heart that can cause a rise in the pressure within the heart. This includes valvular heart disease (such as mitral stenosis, mitral regurgitation, and tricuspid regurgitation), hypertension, and congestive heart failure. Any inflammatory state that affects the heart can cause fibrosis of the atria.

Once dilation of the atria has occurred, this begins a chain of events that leads to the activation of the renin–angiotensin–aldosterone system (RAAS) and subsequent increase in the matrix metalloproteinases and disintegrin, which leads to atrial remodeling and fibrosis, with loss of atrial muscle mass. This process occurs gradually, and experimental studies have revealed patchy atrial fibrosis may precede the occurrence of atrial fibrillation and may progress with prolonged durations of atrial fibrillation.

Fibrosis is not limited to the muscle mass of the atria and may occur in the sinus node (SA node) and atrioventricular node (AV node), correlating with sick sinus syndrome. Prolonged episodes of atrial fibrillation have been shown to correlate with prolongation of the sinus node recovery time; this suggests that dysfunction of the SA node is progressive with prolonged episodes of atrial fibrillation.

Along with fibrosis, alterations in the atria that predispose to atrial fibrillation affect their electrical properties, as well as their responsiveness to the autonomic nervous system. The atrial remodeling that includes the pathologic changes described above has been referred to as atrial myopathy.

Electrophysiology

Conduction
Sinus rhythm	Atrial fibrillation

There are multiple theories about the cause of atrial fibrillation. An important theory is that the regular impulses produced by the sinus node for a normal heartbeat are overwhelmed by rapid electrical discharges produced in the atria and adjacent parts of the pulmonary veins. Non-pulmonary vein sources of triggers for atrial fibrillation have been identified in 10% to 33% of patients. These triggers include the coronary sinus, the posterior wall of the left atrium, and the left atrial appendage.

Sources of these disturbances are either automatic foci, often localized at one of the pulmonary veins, or a small number of localized sources in the form of either a re-entrant leading circle or electrical spiral waves (rotors); these localized sources may be in the left atrium near the pulmonary veins or in a variety of other locations through both the left or right atrium. Three fundamental components favor the establishment of a leading circle or a rotor: slow conduction velocity of the cardiac action potential, a short refractory period, and a small wavelength. Meanwhile, the wavelength is the product of velocity and refractory period. If the action potential has fast conduction, with a long refractory period and/or conduction pathway shorter than the wavelength, an AF focus would not be established. In multiple wavelet theory, a wavefront will break into smaller daughter wavelets when encountering an obstacle, through a process called vortex shedding. But, under the proper conditions, such wavelets can reform and spin around a center, forming an AF focus.

In a heart with AF, the increased calcium release from the sarcoplasmic reticulum and increased calcium sensitivity can lead to an accumulation of intracellular calcium and causes downregulation of L-type calcium channels. This reduces the duration of action potential and the refractory period, thus favoring the conduction of re-entrant waves. Increased expression of inward-rectifier potassium ion channels can cause a reduced atrial refractory period and wavelength. The abnormal distribution of gap junction proteins such as GJA1 (also known as connexin 43), and GJA5 (connexin 40) causes non-uniformity of electrical conduction, thus causing the arrhythmia.

AF can be distinguished from atrial flutter (AFL), which appears as an organized electrical circuit usually in the right atrium. AFL produces characteristic saw-toothed F-waves of constant amplitude and frequency on an ECG, whereas AF does not. In AFL, the discharges circulate rapidly at a rate of 300 beats per minute (bpm) around the atrium. In AF, there is no such regularity, except at the sources where the local activation rate can exceed 500 bpm. Although AF and atrial flutter are distinct arrhythmias, atrial flutter may degenerate into AF, and an individual may experience both arrhythmias at different times.

Although the electrical impulses of AF occur at a high rate, most of them do not result in a heartbeat. A heartbeat results when an electrical impulse from the atria passes through the atrioventricular (AV) node to the ventricles and causes them to contract. During AF, if all of the impulses from the atria passed through the AV node, there would be severe ventricular tachycardia, resulting in a severe reduction of cardiac output. This dangerous situation is prevented by the AV node since its limited conduction velocity reduces the rate at which impulses reach the ventricles during AF.

Diagnosis

Diagnosis of atrial fibrillation is diagnosed on an electrocardiogram (ECG/EKG).

The evaluation of atrial fibrillation involves a determination of the cause of the arrhythmia, and classification of the arrhythmia. Diagnostic investigation of AF typically includes a complete history and physical examination, ECG, transthoracic echocardiogram, complete blood count, serum thyroid stimulating hormone level and may include a functionality of some smartwatches.

Screening

Numerous guidelines recommend opportunistic screening for atrial fibrillation in those 65 years and older. These organizations include the: European Society of Cardiology, National Heart Foundation of Australia and the Cardiac Society of Australia and New Zealand, European Heart Rhythm Society, AF-SCREEN International Collaboration, Royal College of Physicians of Edinburgh European Primary Care Cardiovascular Society, and Irish Health Information and Quality Authority.

Single timepoint screening detects undiagnosed AF, which is often asymptomatic, in approximately 1.4% of people in this age group. A Scottish inquiry into atrial fibrillation estimated that as many as one-third of people with AF are undiagnosed. Despite this, in 2018, the United States Preventive Services Task Force found insufficient evidence to determine the usefulness of routine screening. Given the importance of having a pathway to treatment, general practice is potentially an ideal setting to conduct AF screening. General practice was identified as a 'preferred' setting for AF screening by the AF-SCREEN international collaboration report due to the availability of nursing support and the natural pathway to treatment.

Bloodwork

While many cases of AF have no definite cause, it may be the result of various other problems. Hence, kidney function and electrolytes are routinely determined, as well as thyroid-stimulating hormone (commonly suppressed in hyperthyroidism and of relevance if amiodarone is administered for treatment) and a blood count.

Electrocardiogram

Atrial fibrillation is diagnosed on an electrocardiogram (ECG), an investigation performed routinely whenever an irregular heartbeat is suspected. Characteristic findings are the absence of P waves, with disorganized electrical activity in their place, and irregular R–R intervals due to irregular conduction of impulses to the ventricles. At very fast heart rates, atrial fibrillation may look more regular, which may make it more difficult to separate from other supraventricular tachycardias or ventricular tachycardia.

QRS complexes should be narrow, signifying that they are initiated by normal conduction of atrial electrical activity through the intraventricular conduction system. Wide QRS complexes are worrisome for ventricular tachycardia, although, in cases where there is a disease of the conduction system, wide complexes may be present in A-fib with a rapid ventricular response.

If paroxysmal AF is suspected, but an ECG during an office visit shows only a regular rhythm, AF episodes may be detected and documented with the use of ambulatory Holter monitoring (e.g., for a day). If the episodes are too infrequent to be detected by Holter monitoring with reasonable probability, then the person can be monitored for longer periods (e.g., a month) with an ambulatory event monitor.

Echocardiography

In general, a non-invasive transthoracic echocardiogram (TTE) is performed in newly diagnosed AF, as well as if there is a major change in the person's clinical state. This ultrasound-based scan of the heart may help identify valvular heart disease (which may greatly increase the risk of stroke and alter recommendations for the appropriate type of anticoagulation), left and right atrial size (which predicts the likelihood that AF may become permanent), left ventricular size and function, peak right ventricular pressure (pulmonary hypertension), presence of left atrial thrombus (low sensitivity), presence of left ventricular hypertrophy and pericardial disease.

Significant enlargement of both the left and right atria is associated with long-standing atrial fibrillation and, if noted at the initial presentation of atrial fibrillation, suggests that the atrial fibrillation is likely to be of a longer duration than the individual's symptoms.

Chest X-ray

In general, a chest X-ray is performed only if a pulmonary cause of atrial fibrillation is suggested, or if other cardiac conditions are suspected (in particular congestive heart failure). This may reveal an underlying problem in the lungs or the blood vessels in the chest.

Transesophageal echocardiogram

A regular echocardiogram (transthoracic echocardiogram; TTE) has a low sensitivity for identifying blood clots in the heart. If this is suspected (e.g. when planning urgent electrical cardioversion), a transesophageal echocardiogram (TEE or TOE where British spelling is used) is preferred.

The TEE has much better visualization of the left atrial appendage than transthoracic echocardiography. This structure, located in the left atrium, is the place where a blood clot forms in more than 90% of cases in non-valvular (or non-rheumatic) atrial fibrillation. TEE has a high sensitivity for locating thrombi in this area and can also detect sluggish blood flow in this area that is suggestive of blood clot formation. If a blood clot is seen on TEE, then cardioversion is contraindicated due to the risk of stroke, and anticoagulation is recommended.

Ambulatory Holter monitoring

A Holter monitor is a wearable ambulatory heart monitor that continuously monitors the heart rate and heart rhythm for a short duration, typically 24 hours. In individuals with symptoms of significant shortness of breath with exertion or palpitations regularly, a Holter monitor may be of benefit to determine whether rapid heart rates (or unusually slow heart rates) during atrial fibrillation are the cause of the symptoms.

Exercise stress testing

Some individuals with atrial fibrillation do well with normal activity but develop shortness of breath with exertion. It may be unclear whether the shortness of breath is due to a blunted heart rate response to exertion caused by excessive atrioventricular node-blocking agents, a very rapid heart rate during exertion, or other underlying conditions such as chronic lung disease or coronary ischemia. An exercise stress test will evaluate the individual's heart rate response to exertion and determine whether the AV node blocking agents are contributing to the symptoms.

Non-contact detection

Non-contact AF detection technologies have been developed that utilize pulsatile changes in skin color using video photoplethysmography (VPG). These methods can allow for remote AF detection (e.g., via Telehealth), which can improve outcomes. Under optimal conditions — such as lighting (≥100 lux) and camera position — this method can achieve low error rates through computation of Pulse Harmonic Strength (PHS), a metric of pulse rate. However, due to limited initial studies, little is known about the potential computational-based racial biases embedded in these algorithms. Algorithmic biases have been found in facial detection software (Gender Shades); these technologies may be inequitable and exacerbate healthcare disparities. More clinical validation is needed before these tools become widely used for medical decisions.

Classification

The American College of Cardiology (ACC), American Heart Association (AHA), and the European Society of Cardiology (ESC) recommend in their guidelines the following classification system based on simplicity and clinical relevance.

All people with AF are initially in the category called first detected AF. These people may or may not have had previous undetected episodes. If a first detected episode stops on its own in less than seven days and then another episode begins, later on, the category changes to paroxysmal AF. Although people in this category have episodes lasting up to seven days, in most cases of paroxysmal AF, the episodes will stop in less than 24 hours. If the episode lasts for more than seven days, it is unlikely to stop on its own and is then known as persistent AF. In this case, cardioversion can be attempted to restore a normal rhythm. If an episode continues for a year or more, the rhythm is then known as longstanding persistent AF. If a decision is made by the person and their medical team to accept persistent AF and not attempt restoration of a normal sinus rhythm but instead manage the AF by simply controlling the person's ventricular rate then the rhythm is referred to as permanent AF. As a further subtype, AF that is detected only by an implanted or wearable cardiac monitor is known as subclinical AF.

Episodes that last less than 30 seconds are not considered in this classification system. Also, this system does not apply to cases where the AF is a secondary condition that occurs in the setting of a primary condition that may be the cause of the AF.

About half of people with AF have permanent AF, while a quarter have paroxysmal AF, and a quarter have persistent AF.

In addition to the above AF categories, which are mainly defined by episode timing and termination, the ACC/AHA/ESC guidelines describe additional AF categories in terms of other characteristics of the person. Valvular AF refers to AF attributable to moderate to severe mitral valve stenosis or atrial fibrillation in the presence of a mechanical artificial heart valve. This distinction may be useful as it has implications on appropriate treatment, including differing recommendations for anticoagulation, but some guidelines discourage use of this term as it may be confusing. Other historically used definitions include lone AF – AF occurring in those aged under 60 in the absence of other cardiovascular or respiratory diseases. This description is also discouraged as it is recognised that AF always has an underlying cause. Secondary AF refers to AF that occurs in the setting of another condition that have caused the AF, such as acute myocardial infarction, cardiac surgery, pericarditis, myocarditis, hyperthyroidism, pulmonary embolism, pneumonia, or another acute pulmonary disease.

Prevention

Prevention of atrial fibrillation focuses primarily on preventing or controlling its risk factors. Many of its risk factors, such as obesity, smoking, lack of physical activity, and excessive alcohol consumption, are modifiable and preventable with lifestyle modification or can be managed by a healthcare professional.

Lifestyle modification

Several healthy lifestyle behaviors are associated with a lower likelihood of developing atrial fibrillation. Accordingly, consensus guidelines recommend abstaining from alcohol and recreational drugs, stopping tobacco use, maintaining a healthy weight, and regularly participating in moderate-intensity physical activities. Consistent moderate-intensity aerobic exercise, defined as achieving 3.0–5.9 METs of intensity, for at least 150 minutes per week may reduce the risk of developing new-onset atrial fibrillation. Few studies have examined the role of specific dietary changes and how it relates to the prevention of atrial fibrillation.

Management

The main goals of treatment are to prevent circulatory instability and stroke. Rate or rhythm control is used to achieve the former, whereas anticoagulation is used to decrease the risk of the latter. If cardiovascularly unstable due to uncontrolled tachycardia, immediate cardioversion is indicated. Many antiarrhythmics, when used long term, increase the risk of death without any meaningful benefit. An integrated management approach, which includes stroke prevention, symptoms control and management of associated comorbidities has been associated with better outcomes in patients with atrial fibrillation.

This holistic or integrated care approach is summed up as the ABC (Atrial fibrillation Better Care) pathway, as follows:

• A: Avoid stroke with Anticoagulation, where the default is stroke prevention unless the patient is at low risk. Stroke prevention means use of oral anticoagulation (OAC), whether with well managed vitamin K antagonists (VKA), with time in therapeutic range >70%, or more commonly, label-adherent dosed direct oral anticoagulant (DOAC).
• B: Better symptom and atrial fibrillation management with patient-centred, symptom directed decisions on rate control or rhythm control. In some selected patients, use early rhythm control may be beneficial.
• C: Cardiovascular risk factor and comorbidity management, including attention to lifestyle factors and psychological morbidity.

Lifestyle modification

Regular aerobic exercise improves atrial fibrillation symptoms and AF-related quality of life. The effect of high-intensity interval training on reducing atrial fibrillation burden is unclear. Weight loss of at least 10% is associated with reduced atrial fibrillation burden in people who are overweight or obese.

Comorbidity treatment

For people who have both atrial fibrillation and obstructive sleep apnea, observational studies suggest that continuous positive airway pressure (CPAP) treatment appears to lower the risk of atrial fibrillation recurrence after undergoing ablation. Randomized controlled trials examining the role of obstructive sleep apnea treatment on atrial fibrillation incidence and burden are lacking. Guideline-recommended lifestyle and medical interventions are recommended for people with atrial fibrillation and coexisting conditions such as hyperlipidemia, diabetes mellitus, or hypertension without specific blood sugar or blood pressure targets for people with atrial fibrillation.

Bariatric surgery may reduce the risk of new-onset atrial fibrillation in people with obesity without AF and may reduce the risk of a recurrence of AF after an ablation procedure in people with coexisting obesity and atrial fibrillation. It is important for all people with atrial fibrillation to optimize the control of all coexisting medical conditions that can worsen their atrial fibrillation, such as hyperthyroidism, diabetes, congestive heart failure, high blood pressure, chronic obstructive pulmonary disease, stimulant use (e.g., methamphetamine dependence), and excessive alcohol consumption.

Anticoagulants

Anticoagulation can be used to reduce the risk of stroke from AF. Anticoagulation is recommended in most people other than those at low risk of stroke or those at high risk of bleeding. The risk of falls and consequent bleeding in frail elderly people should not be considered a barrier to initiating or continuing anticoagulation since the risk of fall-related brain bleeding is low and the benefit of stroke prevention often outweighs the risk of bleeding. Similarly, the presence or absence of AF symptoms does not determine whether a person warrants anticoagulation and is not an indicator of stroke risk. Oral anticoagulation is underused in atrial fibrillation, while aspirin is overused in many who should be treated with a direct oral anticoagulant (DOAC) or warfarin. In 2019, DOACs were often recommended over warfarin by the American Heart Association.

The risk of stroke from non-valvular AF can be estimated using the CHA₂DS₂-VASc score. In the 2019 AHA/ACC/HRS guidelines, anticoagulation is recommended in non-valvular AF if there is a score of two or more in men and three or more in women and may be considered if there is a score of one in men or two in women; not using anticoagulation is reasonable if there is a score of zero in men or one in women. Guidelines from the American College of Chest Physicians, Asia-Pacific Heart Rhythm Society, Canadian Cardiovascular Society, European Society of Cardiology, Japanese Circulation Society, Korean Heart Rhythm Society, and the National Institute for Health and Care Excellence recommend the use of novel oral anticoagulants or warfarin with a CHA₂DS₂-VASc score of one over aspirin and some directly recommend against aspirin. Experts generally advocate for most people with atrial fibrillation with CHA₂DS₂-VASc scores of one or more receiving anticoagulation though aspirin is sometimes used for people with a score of one (moderate risk for stroke). There is little evidence to support the idea that the use of aspirin significantly reduces the risk of stroke in people with atrial fibrillation. Furthermore, aspirin's major bleeding risk (including bleeding in the brain) is similar to that of warfarin and DOACs despite its inferior efficacy.

Anticoagulation can be achieved through several means including warfarin, heparin, dabigatran, rivaroxaban, edoxaban, and apixaban. Many issues should be considered related to their comparative effectiveness, including the cost of DOACs, risk of stroke, risk of falls, comorbidities (such as chronic liver or kidney disease), the presence of significant mitral stenosis or mechanical heart valves, compliance, and speed of the desired onset of anticoagulation. The optimal approach to anticoagulation in people with AF and who simultaneously have other diseases (e.g., cirrhosis and end-stage kidney disease on dialysis) that predispose a person to both bleeding and clotting complications is unclear.

For those with non-valvular atrial fibrillation, DOACs are at least as effective as warfarin for preventing strokes and blood clots embolizing to the systemic circulation (if not more so) and are generally preferred over warfarin. DOACs carry a lower risk of bleeding in the brain compared to warfarin, although dabigatran is associated with a higher risk of intestinal bleeding. Dual antiplatelet therapy with aspirin and clopidogrel is inferior to warfarin for preventing strokes or systemic embolism and has comparable bleeding risk in people with atrial fibrillation. In those who are also on aspirin, however, DOACs appear to be better than warfarin.

Time in therapeutic range (TTR) and INR variability are commonly used to assess the quality of VKA treatment. Patients who are unable to maintain a therapeutic INR on VKA, as indicated by low TTR and/or high INR variability, are at an increased risk of thromboembolic and bleeding events. In these patients, treatment with a DOAC is recommended. While there are no significant changes in adherence, persistence or clinical outcomes in patients switched from a VKA to a DOAC, an increase in therapy satisfaction has been reported.

DOAC therapy is not recommended for all patients with atrial fibrillation. For instance, warfarin is the recommended anticoagulant for patients with atrial fibrillation who have mechanical heart valves.

Rate versus rhythm control

There are two ways to approach atrial fibrillation using medications: rate control and rhythm control. Both methods have similar outcomes. Rate control lowers the heart rate closer to normal, usually 60 to 100 bpm, without trying to convert to a regular rhythm. Rhythm control tries to restore a normal heart rhythm in a process called cardioversion and maintains the normal rhythm with medications. Studies suggest that rhythm control is more important in the acute setting AF, whereas rate control is more important in the chronic phase.

The risk of stroke appears to be lower with rate control versus attempted rhythm control, at least in those with heart failure. AF is associated with a reduced quality of life, and, while some studies indicate that rhythm control leads to a higher quality of life, some did not find a difference.

Neither rate nor rhythm control is superior in people with heart failure when they are compared in various clinical trials. However, rate control is recommended as the first-line treatment regimen for people with heart failure. On the other hand, rhythm control is only recommended when people experience persistent symptoms despite adequate rate control therapy.

In those with a fast ventricular response, intravenous magnesium significantly increases the chances of achieving successful rate and rhythm control in the urgent setting without major side-effects. A person with poor vital signs, mental status changes, preexcitation, or chest pain often will go to immediate treatment with synchronized DC cardioversion. Otherwise, the decision of rate control versus rhythm control using medications is made. This is based on several criteria that include whether or not symptoms persist with rate control.

Rate control

Rate control to a target heart rate of fewer than 110 beats per minute is recommended in most people. Lower heart rates may be recommended in those with left ventricular hypertrophy or reduced left ventricular function. Rate control is achieved with medications that work by increasing the degree of the block at the level of the AV node, decreasing the number of impulses that conduct into the ventricles. This can be done with:

• Beta blockers (preferably the "cardioselective" beta blockers such as metoprolol, bisoprolol, or nebivolol)
• Non-dihydropyridine calcium channel blockers (e.g., diltiazem or verapamil)
• Cardiac glycosides (e.g., digoxin) – have less use, apart from in older people who are sedentary. They are not as effective as either beta-blockers or calcium channel blockers.

Patients with chronic AF are recommended to take either beta blockers or calcium channel blockers.

In addition to these agents, amiodarone has some AV node blocking effects (in particular when administered intravenously) and can be used in individuals when other agents are contraindicated or ineffective (particularly due to hypotension).

Cardioversion

Cardioversion is the attempt to switch an irregular heartbeat to a normal heartbeat using electrical or chemical means.

• Electrical cardioversion involves the restoration of normal heart rhythm through the application of a DC electrical shock. The exact placement of the pads does not appear to be important.
• Chemical cardioversion is performed with medications, such as amiodarone, dronedarone, procainamide (especially in pre-excited atrial fibrillation), dofetilide, ibutilide, propafenone, or flecainide.

After successful cardioversion, the heart may be stunned, which means that there is a normal rhythm, but the restoration of normal atrial contraction has not yet occurred.

Surgery

Ablation

Catheter ablation (CA) is a procedure performed by an electrophysiologist, a cardiologist who specializes in heart rhythm problems, to restore the heart's normal rhythm by destroying, or electrically isolating, specific parts of the atria. A group of cardiologists led by Dr Haïssaguerre from Bordeaux University Hospital noted in 1998 that the pulmonary veins are an important source of ectopic beats, initiating frequent paroxysms of atrial fibrillation, with these foci responding to treatment with radio-frequency ablation. Most commonly, CA electrically isolates the left atrium from the pulmonary veins, where most of the abnormal electrical activity promoting atrial fibrillation originates. CA is a form of rhythm control that restores normal sinus rhythm and reduces AF-associated symptoms more reliably than antiarrhythmic medications.

Electrophysiologists generally use two forms of catheter ablation—radiofrequency ablation, or cryoablation. In young people with little-to-no structural heart disease where rhythm control is desired and cannot be maintained by medication or cardioversion, radiofrequency catheter ablation or cryoablation may be attempted and may be preferred over several years of medical therapy. Although radiofrequency ablation has become an accepted intervention in selected younger people and may be more effective than medication at improving symptoms and quality of life, there is no evidence that ablation reduces all-cause mortality, stroke, or heart failure. Some evidence indicates CA may be particularly helpful for people with AF who also have heart failure. AF may recur in people who have undergone CA and nearly half of people who undergo it will require a repeat procedure to achieve long-term control of their AF.

In general, CA is more successful at preventing AF recurrence if AF is paroxysmal as opposed to persistent. As CA does not reduce the risk of stroke, many are advised to continue their anticoagulation. Possible complications include common, minor complications such as the formation of a collection of blood at the site where the catheter goes into the vein (access site hematoma), but also more dangerous complications including bleeding around the heart (cardiac tamponade), stroke, damage to the esophagus (atrio-esophageal fistula), or even death. Use of pulsed field ablation as a non-thermal method of inducing electroporation avoids damage to the phrenic nerve, esophagus, and blood vessels, while being at least as effective as thermal ablation methods.

A hybrid convergent procedure has been developed which combines endocardial ablation with epicardial ablation, which can reduce AF recurrence to less than 5% for over one year. The epicardial ablation is performed first, with a minimally invasive surgical approach.

Maze procedure

An alternative to catheter ablation is surgical ablation. The maze procedure, first performed in 1987, is an effective invasive surgical treatment that is designed to create electrical blocks or barriers in the atria of the heart. The idea is to force abnormal electrical signals to move along one, uniform path to the lower chambers of the heart (ventricles), thus restoring the normal heart rhythm. People with AF often undergo cardiac surgery for other underlying reasons and are frequently offered concomitant AF surgery to reduce the frequency of short- and long-term AF. Concomitant AF surgery is more likely to lead to the person being free from atrial fibrillation and off medications long-term after surgery and Cox-Maze IV procedure is the gold standard treatment. There is a slightly increased risk of needing a pacemaker following the procedure. Less invasive modifications of the maze procedure have been developed, designated as minimaze procedures.

Left atrial appendage occlusion

There is growing evidence that left atrial appendage occlusion therapy may reduce the risk of stroke in people with non-valvular AF as much as warfarin. The addition of left atrial appendage isolation to catheter ablation has reduced AF recurrence by 80% in patients with persistent AF.

After surgery

After catheter ablation, people are moved to a cardiac recovery unit, intensive care unit, or cardiovascular intensive care unit where they are not allowed to move for 4–6 hours. Minimizing movement helps prevent bleeding from the site of the catheter insertion. The length of time people stay in the hospital varies from hours to days. This depends on the problem, the length of the operation, and whether or not general anesthetic was used. Additionally, people should not engage in strenuous physical activity – to maintain a low heart rate and low blood pressure – for around six weeks.

AF often occurs after cardiac surgery and is usually self-limiting. It is strongly associated with age, preoperative hypertension, and the number of vessels grafted. Measures should be taken to control hypertension preoperatively to reduce the risk of AF. Also, people with a higher risk of AF, e.g., people with pre-operative hypertension, more than three vessels grafted, or greater than 70 years of age, should be considered for prophylactic treatment. Postoperative pericardial effusion is also suspected to be the cause of atrial fibrillation. Prophylaxis may include prophylactic postoperative rate and rhythm management. Some authors perform posterior pericardiotomy to reduce the incidence of postoperative AF. When AF occurs, management should primarily be rate and rhythm control. However, cardioversion may be used if the patient is hemodynamically unstable, highly symptomatic, or AF persists for six weeks after discharge. In persistent cases, anticoagulation should be used.

Prognosis

Atrial fibrillation can progress from infrequent occurrences to more frequent occurrences, ultimately becoming permanent. Some cases do not progress, especially among patients with a healthy lifestyle.

Many mechanisms contribute to cardiac remodeling leading to a worsening of atrial fibrillation, including fibrosis, fatty infiltration, amyloidosis, and ion channel modifications. Fatty infiltration helps explain why obesity is a risk factor for atrial fibrillation in one fifth of patients.

Atrial fibrillation increases the risk of heart failure by 11 per 1000, kidney problems by 6 per 1000, death by 4 per 1000, stroke by 3 per 1000, and coronary heart disease by 1 per 1000. Women have a worse outcome overall than men. Evidence increasingly suggests that atrial fibrillation is independently associated with a higher risk of developing dementia.

Blood clots

Prediction of embolism

Among Danish men aged 50, with no risk factors, the 5-year risk of stroke was 1.1% and with AF alone 2.5%. For women the risks were slightly less, 0.7% and 2.1%. For men aged 70, the 5-year risk of stroke was 4.8% and with AF alone 6.8%. For women aged 70 the risk was again lower than for men, 3.4% with no added risk factor and 8.2% with AF.

Determining the risk of an embolism causing a stroke is important for guiding the use of anticoagulants. The most accurate clinical prediction rules are:

• CHADS₂
• CHA₂DS₂-VASc score

Both the CHADS₂ and the CHA₂DS₂-VASc score predict future stroke risk in people with A-fib with CHA₂DS₂-VASc score being more accurate. The addition of blood based biomarkers such as NT-proBNP and neurofilament light chain improves risk prediction significantly. Some that had a CHADS₂ score of zero had a CHA₂DS₂-VASc score of three, with a 3.2% annual risk of stroke. Thus, a CHA₂DS₂-VASc score of zero is considered very low risk.

Mechanism of thrombus formation

In atrial fibrillation, the lack of an organized atrial contraction can result in some stagnant blood in the left atrium (LA) or left atrial appendage (LAA). This lack of movement of blood can lead to thrombus formation (blood clotting). If the clot becomes mobile and is carried away by the blood circulation, it is called an embolus. An embolus proceeds through smaller and smaller arteries until it plugs one of them and prevents blood from flowing through the artery. This process results in end organ damage due to the loss of nutrients, oxygen, and the removal of cellular waste products. Emboli in the brain may result in an ischemic stroke or a transient ischemic attack (TIA).

More than 90% of cases of thrombi associated with non-valvular atrial fibrillation evolve in the left atrial appendage. However, the LAA lies in close relation to the free wall of the left ventricle, and thus the LAA's emptying and filling, which determines its degree of blood stagnation, may be helped by the motion of the wall of the left ventricle if there is good ventricular function.

Dementia

Atrial fibrillation has been independently associated with a higher risk of developing cognitive impairment, vascular dementia, and Alzheimer disease and with elevated levels of neurofilament light chain in blood, a biomarker indicating neuroaxonal injury. Several mechanisms for this association have been proposed, including silent small blood clots (subclinical microthrombi) traveling to the brain resulting in small ischemic strokes without symptoms, altered blood flow to the brain, inflammation, clinically silent small bleeds in the brain, and genetic factors. Tentative evidence suggests that effective anticoagulation with direct oral anticoagulants or warfarin may be somewhat protective against AF-associated dementia and evidence of silent ischemic strokes on MRI but this remains an active area of investigation.

Epidemiology

Atrial fibrillation is the most common arrhythmia and affects more than 33 million people worldwide. 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. In the developing world, rates are about 0.6% for males and 0.4% for females. The number of people diagnosed with AF has increased due to better detection of silent AF and increasing age and conditions that predispose to it.

It also accounts for one-third of hospital admissions for cardiac rhythm disturbances, and the rate of admissions for AF has risen. AF is the cause for 20% to 30% of all ischemic strokes. After a transient ischemic attack or stroke, about 11% are found to have a new diagnosis of atrial fibrillation. 3% to 11% of patients with AF have structurally normal hearts. Approximately 2.2 million individuals in the United States and 4.5 million in the European Union have AF.

The number of new cases each year of AF increases with age. In people older than 80 years, it affects about 8%. In contrast, in younger people the prevalence is estimated to be 0.05% and is associated with congenital heart disease or structural heart disease in this demographic. As of 2001, it was anticipated that in developed countries, the number of people with atrial fibrillation was likely to increase during the following 50 years, due to the growing proportion of elderly people.

Gender

Atrial fibrillation is more common in men than in women when reviewed in European and North American populations. In developed and developing countries, there is also a higher rate in men than in women. The risk factors associated with AF are also distributed differently according to gender. In men, coronary disease is more frequent, while in women, high systolic blood pressure and valvular heart disease are more prevalent.

Ethnicity

Rates of AF are lower in populations of African descent than in populations of European descent. African descent is associated with a protective effect for AF, due to the lower presence of SNPs with guanine alleles. European ancestry has more frequent mutations. The variant rs4611994 for the gene PITX2 is associated with risk of AF in African and European populations. Hispanic and Asian populations have a lower risk of AF than European populations. The risk of AF in non-European populations is associated with characteristic risk factors of these populations, such as hypertension.

Young people

Atrial fibrillation is an uncommon condition in children but sometimes occurs in association with certain inherited and acquired conditions. Congenital heart disease and rheumatic fever are the most common causes of atrial fibrillation in children. Other inherited heart conditions associated with the development of atrial fibrillation in children include Brugada syndrome, short QT syndrome, Wolff Parkinson White syndrome, and other forms of supraventricular tachycardia (e.g., AV nodal reentrant tachycardia). Adults who survived congenital heart disease have an increased risk of developing AF. In particular, people who had atrial septal defects, Tetralogy of Fallot, or Ebstein's anomaly, and those who underwent the Fontan procedure, are at higher risk with prevalence rates of up to 30% depending on the heart's anatomy and the person's age.

History

Because the diagnosis of atrial fibrillation requires measurement of the electrical activity of the heart, atrial fibrillation was not truly described until 1874, when Edmé Félix Alfred Vulpian observed the irregular atrial electrical behavior that he termed "fremissement fibrillaire" in dog hearts. In the mid-18th century, Jean-Baptiste de Sénac made note of dilated, irritated atria in people with mitral stenosis. The irregular pulse associated with AF was first recorded in 1876 by Carl Wilhelm Hermann Nothnagel and termed "delirium cordis", stating that "n this form of arrhythmia the heartbeats follow each other in complete irregularity. At the same time, the height and tension of the individual pulse waves are continuously changing". Correlation of delirium cordis with the loss of atrial contraction, as reflected in the loss of a waves in the jugular venous pulse, was made by Sir James MacKenzie in 1904. Willem Einthoven published the first ECG showing AF in 1906. The connection between the anatomic and electrical manifestations of AF and the irregular pulse of delirium cordis was made in 1909 by Carl Julius Rothberger, Heinrich Winterberg, and Sir Thomas Lewis.

Other animals

Atrial fibrillation occurs in other animals, including cats, dogs, and horses. Unlike humans, dogs rarely develop the complications that stem from blood clots breaking off from inside the heart and traveling through the arteries to distant sites (thromboembolic complications). Cats rarely develop atrial fibrillation but appear to have a higher risk of thromboembolic complications than dogs.

Cats and dogs with atrial fibrillation often have underlying structural heart disease that predisposes them to the condition. The medications used in animals for atrial fibrillation are largely similar to those used in humans. Electrical cardioversion is occasionally performed in these animals, but the need for general anesthesia limits its use. Standardbred horses appear to be genetically susceptible to developing atrial fibrillation. Horses that develop atrial fibrillation often have minimal or no underlying heart disease, and the presence of atrial fibrillation in horses can adversely affect physical performance.

References

1. "Atrial fibrillation or flutter: MedlinePlus Medical Encyclopedia". medlineplus.gov. Retrieved 28 May 2019.
2. ^ Gray D (2010). Chamberlain's Symptoms and Signs in Clinical Medicine: An Introduction to Medical Diagnosis (13th ed.). London: Hodder Arnold. pp. 70–71. ISBN 978-0-340-97425-4.
3. ^ Munger TM, Wu LQ, Shen WK (January 2014). "Atrial fibrillation". Journal of Biomedical Research. 28 (1): 1–17. doi:10.7555/JBR.28.20130191. PMC 3904170. PMID 24474959.
4. ^ Zoni-Berisso M, Lercari F, Carazza T, Domenicucci S (2014). "Epidemiology of atrial fibrillation: European perspective". Clinical Epidemiology. 6: 213–220. doi:10.2147/CLEP.S47385. PMC 4064952. PMID 24966695.
5. ^ Anumonwo JM, Kalifa J (November 2014). "Risk factors and genetics of atrial fibrillation". Cardiology Clinics. 32 (4): 485–494. doi:10.1016/j.ccl.2014.07.007. PMID 25443231.
6. ^ Nguyen TN, Hilmer SN, Cumming RG (September 2013). "Review of epidemiology and management of atrial fibrillation in developing countries". International Journal of Cardiology. 167 (6): 2412–2420. doi:10.1016/j.ijcard.2013.01.184. PMID 23453870.
7. ^ Staerk L, Sherer JA, Ko D, Benjamin EJ, Helm RH (April 2017). "Atrial Fibrillation: Epidemiology, Pathophysiology, and Clinical Outcomes". Circulation Research (Review). 120 (9): 1501–1517. doi:10.1161/CIRCRESAHA.117.309732. PMC 5500874. PMID 28450367.
8. ^ Ferguson C, Inglis SC, Newton PJ, Middleton S, Macdonald PS, Davidson PM (May 2014). "Atrial fibrillation: stroke prevention in focus". Australian Critical Care. 27 (2): 92–98. doi:10.1016/j.aucc.2013.08.002. PMID 24054541.
9. Hui D, Leung AA, Padwal R (2015). Approach to Internal Medicine: A Resource Book for Clinical Practice. Springer. p. 45. ISBN 978-3-319-11821-5. Archived from the original on 8 September 2017.
10. Li X, Liu Z, Jiang X, Xia R, Li Y, Pan X, et al. (November 2023). "Global, regional, and national burdens of atrial fibrillation/flutter from 1990 to 2019: An age-period-cohort analysis using the Global Burden of Disease 2019 study". Journal of Global Health. 13: 04154. doi:10.7189/jogh.13.04154. PMC 10662782. PMID 37988383.
11. "Heart Disease Other Related Conditions". cdc.gov. 3 September 2014. Archived from the original on 14 February 2015. Retrieved 19 February 2015.
12. ^ Sanders GD, Lowenstern A, Borre E, Chatterjee R, Goode A, Sharan L, et al. (October 2018). Stroke prevention in patients with atrial fibrillation: a systematic review update. Agency for Healthcare Research and Quality (US) (Report). AHRQ Comparative Effectiveness Reviews. Rockville (MD). PMID 30480925. Report No.: 18-EHC018-EFReport No.: 2018-SR-04
13. ^ Bun SS, Latcu DG, Marchlinski F, Saoudi N (September 2015). "Atrial flutter: more than just one of a kind". European Heart Journal. 36 (35). Oxford University Press (OUP): 2356–2363. doi:10.1093/eurheartj/ehv118. PMID 25838435.
14. Richard D. Urman, Linda S. Aglio, Robert W. Lekowski, eds. (2015). Essential clinical anesthesia review: keywords, questions and answers for the boards. Cambridge University Press. p. 480. ISBN 978-1-107-68130-9. Archived from the original on 8 September 2017.
15. ^ McGarry TJ, Narayan SM (2012). "The anatomical basis of pulmonary vein reconnection after ablation for atrial fibrillation: wounds that never felt a scar?". Journal of the American College of Cardiology. 50 (10): 939–941. doi:10.1016/j.jacc.2011.11.032. PMC 3393092. PMID 22381430.
16. Stavrakis S, Po S (2017). "Ganglionated Plexi Ablation: Physiology and Clinical Applications". Arrhythmia & Electrophysiology Review. 6 (4): 186–190. doi:10.15420/aer2017.26.1. PMC 5739885. PMID 29326833.
17. Naksuk N, Padmanabhan D, Asirvatham SJ (2016). "Left Atrial Appendage: Embryology, Anatomy, Physiology, Arrhythmia and Therapeutic Intervention". JACC: Clinical Electrophysiology. 2 (4): 403–412. doi:10.1016/j.jacep.2016.06.006. PMID 29759858.
18. Eranki A, Wilson-Smith A, Manganas C (2023). "Mid term freedom from atrial fibrillation following hybrid ablation, a systematic review and meta analysis". Journal of Cardiothoracic Surgery. 18 (1): 155. doi:10.1186/s13019-023-02189-2. PMC 10114378. PMID 37076929.
19. ^ Mischke K, Knackstedt C, Marx N, Vollmann D (April 2013). "Insights into atrial fibrillation". Minerva Medica. 104 (2): 119–130. PMID 23514988.
20. ^ Rafaqat S, Rafaqat S, Rafaqat S (February 2023). "The Role of Major Biomarkers of Stress in Atrial Fibrillation: A Literature Review". The Journal of Innovations in Cardiac Rhythm Management. 14 (2): 5355–5364. doi:10.19102/icrm.2023.14025. PMC 9983621. PMID 36874560.
21. Hytting J, Celik S, Bodestrom Eriksson L, Mallios P, Digerfeldt C, Waldemar A, et al. (2024). "Is thyroid function testing necessary in all cases of new onset atrial fibrillation diagnosed in the emergency department? - a real-life study". Europace. 26 (Suppl 1): euae102.254. doi:10.1093/europace/euae102.254. PMC 11120881.
22. ^ Chung MK, Eckhardt LL, Chen LY, Ahmed HM, Gopinathannair R, Joglar JA, et al. (April 2020). "Lifestyle and Risk Factor Modification for Reduction of Atrial Fibrillation: A Scientific Statement From the American Heart Association". Circulation. 141 (16): e750–e772. doi:10.1161/CIR.0000000000000748. PMID 32148086.
23. Oishi ML, Xing S (February 2013). "Atrial fibrillation: management strategies in the emergency department". Emergency Medicine Practice. 15 (2): 1–26, quiz 27. PMID 23369365.
24. Amerena JV, Walters TE, Mirzaee S, Kalman JM (November 2013). "Update on the management of atrial fibrillation". The Medical Journal of Australia. 199 (9): 592–597. doi:10.5694/mja13.10191. PMID 24182224.
25. ^ Freedman B, Potpara TS, Lip GY (August 2016). "Stroke prevention in atrial fibrillation". Lancet. 388 (10046): 806–817. doi:10.1016/S0140-6736(16)31257-0. PMID 27560276. S2CID 5578741.
26. ^ Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomström-Lundqvist C, et al. (February 2021). "2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC". European Heart Journal. 42 (5): 373–498. doi:10.1093/eurheartj/ehaa612. hdl:11379/546100. PMID 32860505.
27. Steinberg BA, Piccini JP (April 2014). "Anticoagulation in atrial fibrillation". BMJ. 348: g2116. doi:10.1136/bmj.g2116. PMC 4688652. PMID 24733535.
28. ^ Fuster V, Rydén LE, Cannom DS, Crijns HJ, Curtis AB, Ellenbogen KA, et al. (August 2006). "ACC/AHA/ESC 2006 Guidelines for the Management of Patients with Atrial Fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 Guidelines for the Management of Patients With Atrial Fibrillation): developed in collaboration with the European Heart Rhythm Association and the Heart Rhythm Society". Circulation. 114 (7): e257–e354. doi:10.1161/CIRCULATIONAHA.106.177292. PMID 16908781.
29. GBD 2015 Mortality and Causes of Death Collaborators (October 2016). "Global, regional, and national life expectancy, all-cause mortality, and cause-specific mortality for 249 causes of death, 1980-2015: a systematic analysis for the Global Burden of Disease Study 2015". Lancet. 388 (10053): 1459–1544. doi:10.1016/s0140-6736(16)31012-1. PMC 5388903. PMID 27733281.
30. GBD 2013 Mortality and Causes of Death Collaborators (January 2015). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013". Lancet. 385 (9963): 117–171. doi:10.1016/S0140-6736(14)61682-2. PMC 4340604. PMID 25530442.
31. ^ Gutierrez C, Blanchard DG (January 2011). "Atrial fibrillation: diagnosis and treatment". American Family Physician (Review). 83 (1): 61–68. PMID 21888129. Archived from the original on 24 December 2013.
32. Kim SH, Lim KR, Chun KJ (2022). "Higher heart rate variability as a predictor of atrial fibrillation in patients with hypertensione". Scientific Reports. 12 (1): 3702. Bibcode:2022NatSR..12.3702K. doi:10.1038/s41598-022-07783-3. PMC 8904557. PMID 35260686.
33. Marelli A, Miller SP, Marino BS, Jefferson AL, Newburger JW (May 2016). "Brain in Congenital Heart Disease Across the Lifespan: The Cumulative Burden of Injury". Circulation. 133 (20): 1951–1962. doi:10.1161/CIRCULATIONAHA.115.019881. PMC 5519142. PMID 27185022.
34. ^ Ebrahim MA, Escudero CA, Kantoch MJ, Vondermuhll IF, Atallah J (November 2018). "Insights on Atrial Fibrillation in Congenital Heart Disease". The Canadian Journal of Cardiology. 34 (11): 1531–1533. doi:10.1016/j.cjca.2018.08.010. PMID 30404756. S2CID 53213100.
35. Kuipers S, Klein Klouwenberg PM, Cremer OL (December 2014). "Incidence, risk factors and outcomes of new-onset atrial fibrillation in patients with sepsis: a systematic review". Critical Care (Systematic Review). 18 (6): 688. doi:10.1186/s13054-014-0688-5. PMC 4296551. PMID 25498795.
36. Walkey AJ, Hogarth DK, Lip GY (October 2015). "Optimizing atrial fibrillation management: from ICU and beyond". Chest (Review). 148 (4): 859–864. doi:10.1378/chest.15-0358. PMC 4594627. PMID 25951122.
37. Abed HS, Wittert GA (November 2013). "Obesity and atrial fibrillation". Obesity Reviews. 14 (11): 929–938. doi:10.1111/obr.12056. PMID 23879190. S2CID 25479450.
38. Hoyer FF, Lickfett LM, Mittmann-Braun E, Ruland C, Kreuz J, Pabst S, et al. (October 2010). "High prevalence of obstructive sleep apnea in patients with resistant paroxysmal atrial fibrillation after pulmonary vein isolation". Journal of Interventional Cardiac Electrophysiology. 29 (1): 37–41. doi:10.1007/s10840-010-9502-8. PMID 20714922. S2CID 11129249.
39. Gami AS, Hodge DO, Herges RM, Olson EJ, Nykodym J, Kara T, et al. (February 2007). "Obstructive sleep apnea, obesity, and the risk of incident atrial fibrillation". Journal of the American College of Cardiology. 49 (5): 565–571. doi:10.1016/j.jacc.2006.08.060. PMID 17276180.
40. Magnani JW, Hylek EM, Apovian CM (July 2013). "Obesity begets atrial fibrillation: a contemporary summary". Circulation. 128 (4): 401–405. doi:10.1161/CIRCULATIONAHA.113.001840. PMC 3866045. PMID 23877062.
41. Palmeiro C, Davila MI, Bhat M, Frishman WH, Weiss IA (December 2013). "Subclinical hyperthyroidism and cardiovascular risk: recommendations for treatment". Cardiology in Review. 21 (6): 300–308. doi:10.1097/CRD.0b013e318294f6f1. PMID 23563523. S2CID 2311111.
42. Cheng M, Hu Z, Lu X, Huang J, Gu D (April 2014). "Caffeine intake and atrial fibrillation incidence: dose response meta-analysis of prospective cohort studies". The Canadian Journal of Cardiology. 30 (4): 448–454. doi:10.1016/j.cjca.2013.12.026. PMID 24680173.
43. ^ Voskoboinik A, Prabhu S, Ling LH, Kalman JM, Kistler PM (December 2016). "Alcohol and Atrial Fibrillation: A Sobering Review". Journal of the American College of Cardiology. 68 (23): 2567–2576. doi:10.1016/j.jacc.2016.08.074. PMID 27931615.
44. ^ Argulian E, Conen D, Messerli FH (September 2015). "Misconceptions and Facts About Atrial Fibrillation". The American Journal of Medicine. 128 (9): 938–942. doi:10.1016/j.amjmed.2015.02.016. PMID 25827359.
45. Du X, Dong J, Ma C (April 2017). "Is Atrial Fibrillation a Preventable Disease?". Journal of the American College of Cardiology (Review). 69 (15): 1968–1982. doi:10.1016/j.jacc.2017.02.020. PMID 28408027.
46. Wilhelm M (August 2014). "Atrial fibrillation in endurance athletes". European Journal of Preventive Cardiology. 21 (8): 1040–1048. doi:10.1177/2047487313476414. PMID 23610454. S2CID 22065631.
47. Elliott AD, Mahajan R, Pathak RK, Lau DH, Sanders P (February 2016). "Exercise Training and Atrial Fibrillation: Further Evidence for the Importance of Lifestyle Change". Circulation. 133 (5): 457–459. doi:10.1161/CIRCULATIONAHA.115.020800. PMID 26733608. S2CID 2475456.
48. "Night shift work is linked to increased risk of heart problems". Escardio. Retrieved 16 August 2021.
49. Hazarapetyan L, Zelveian PH, Grigoryan S (2023). "Inflammation and Coagulation are Two Interconnected Pathophysiological Pathways in Atrial Fibrillation Pathogenesis". Journal of Inflammation Research. 16: 4967–4975. doi:10.2147/JIR.S429892. PMC 10625332. PMID 37927962.
50. Chu H, Guo X, Wang Y (2024). "Causal relationship between immune cells and atrial fibrillation: A Mendelian randomization study". Medicine. 103 (19): e38079. doi:10.1097/MD.0000000000038079. PMC 11081550. PMID 38728471.
51. Shoemaker MB, Bollmann A, Lubitz SA, Ueberham L, Saini H, Montgomery J, et al. (April 2015). "Common genetic variants and response to atrial fibrillation ablation". Circulation: Arrhythmia and Electrophysiology. 8 (2): 296–302. doi:10.1161/CIRCEP.114.001909. PMC 4731871. PMID 25684755.
52. ^ Roselli C, Chaffin MD, Weng LC, Aeschbacher S, Ahlberg G, Albert CM, et al. (June 2018). "Multi-ethnic genome-wide association study for atrial fibrillation". Nature Genetics. 50 (9): 1225–1233. doi:10.1038/s41588-018-0133-9. PMC 6136836. PMID 29892015.
53. Thorp AA, Owen N, Neuhaus M, Dunstan DW (August 2011). "Sedentary behaviors and subsequent health outcomes in adults a systematic review of longitudinal studies, 1996-2011". American Journal of Preventive Medicine. 41 (2): 207–215. doi:10.1016/j.amepre.2011.05.004. PMID 21767729.
54. ^ Mohanty S, Mohanty P, Tamaki M, Natale V, Gianni C, Trivedi C, et al. (September 2016). "Differential Association of Exercise Intensity With Risk of Atrial Fibrillation in Men and Women: Evidence from a Meta-Analysis". Journal of Cardiovascular Electrophysiology. 27 (9): 1021–1029. doi:10.1111/jce.13023. PMID 27245609. S2CID 206025944.
55. Abdulla J, Nielsen JR (September 2009). "Is the risk of atrial fibrillation higher in athletes than in the general population? A systematic review and meta-analysis". Europace. 11 (9): 1156–1159. doi:10.1093/europace/eup197. PMID 19633305.
56. D'Andrea A, Riegler L, Cocchia R, Scarafile R, Salerno G, Gravino R, et al. (June 2010). "Left atrial volume index in highly trained athletes". American Heart Journal. 159 (6): 1155–1161. doi:10.1016/j.ahj.2010.03.036. PMID 20569734.
57. ^ Alonso A, Krijthe BP, Aspelund T, Stepas KA, Pencina MJ, Moser CB, et al. (March 2013). "Simple risk model predicts incidence of atrial fibrillation in a racially and geographically diverse population: the CHARGE-AF consortium". Journal of the American Heart Association. 2 (2): e000102. doi:10.1161/JAHA.112.000102. PMC 3647274. PMID 23537808.
58. Hergens MP, Galanti R, Hansson J, Fredlund P, Ahlbom A, Alfredsson L, et al. (November 2014). "Use of Scandinavian moist smokeless tobacco (snus) and the risk of atrial fibrillation". Epidemiology. 25 (6): 872–876. doi:10.1097/EDE.0000000000000169. PMID 25166877. S2CID 24080017.
59. Storz MA, Helle P (2019). "Atrial fibrillation risk factor management with a plant-based diet: A review". Journal of Arrhythmia. 35 (6): 781–788. doi:10.1002/joa3.12254. PMC 6898539. PMID 31844466.
60. ^ Gorenek B, Pelliccia A, Benjamin EJ, Boriani G, Crijns HJ, Fogel RI, et al. (February 2017). "European Heart Rhythm Association (EHRA)/European Association of Cardiovascular Prevention and Rehabilitation (EACPR) position paper on how to prevent atrial fibrillation endorsed by the Heart Rhythm Society (HRS) and Asia Pacific Heart Rhythm Society (APHRS)". Europace (Review). 19 (2): 190–225. doi:10.1093/europace/euw242. PMC 6279109. PMID 28175283.
61. Shen MJ, Arora R, Jalife J (September 2019). "Atrial Myopathy". JACC. Basic to Translational Science. 4 (5): 640–654. doi:10.1016/j.jacbts.2019.05.005. PMC 6872845. PMID 31768479.
62. ^ Calkins H, Hindricks G, Yamane T (2018). "2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation". Europace. 20 (1): e1–e160. doi:10.1093/europace/eux274. PMC 5834122. PMID 29016840.
63. Waks JW, Josephson ME (August 2014). "Mechanisms of Atrial Fibrillation - Reentry, Rotors and Reality". Arrhythmia & Electrophysiology Review. 3 (2): 90–100. doi:10.15420/aer.2014.3.2.90. PMC 4711504. PMID 26835073.
64. Pellman J, Sheikh F (April 2015). "Atrial fibrillation: mechanisms, therapeutics, and future directions". Comprehensive Physiology. 5 (2): 649–665. doi:10.1002/cphy.c140047. ISBN 978-0-470-65071-4. PMC 5240842. PMID 25880508.
65. Klabunde R (2005). Cardiovascular Physiology Concepts. Lippincott Williams & Wilkins. pp. 25, 28. ISBN 978-0-7817-5030-1.
66. Pay L, Yumurtaş AÇ, Satti DI, Hui JM, Chan JS, Mahalwar G, et al. (March 2023). "Arrhythmias Beyond Atrial Fibrillation Detection Using Smartwatches: A Systematic Review". Anatolian Journal of Cardiology. 27 (3). Kare Publishing: 126–131. doi:10.14744/anatoljcardiol.2023.2799. PMC 9995551. PMID 36856589.
67. Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomström-Lundqvist C, et al. (February 2021). "2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC". European Heart Journal. 42 (5). ESC Scientific Document Group: 373–498. doi:10.1093/eurheartj/ehaa612. hdl:1887/3279676. PMID 32860505.
68. Brieger D, Amerena J, Attia J, Bajorek B, Chan KH, Connell C, et al. (October 2018). "National Heart Foundation of Australia and the Cardiac Society of Australia and New Zealand: Australian Clinical Guidelines for the Diagnosis and Management of Atrial Fibrillation 2018". Heart, Lung & Circulation. 27 (10): 1209–1266. doi:10.1016/j.hlc.2018.06.1043. hdl:10536/DRO/DU:30157490. PMID 30077228.
69. Kirchhof P, Breithardt G, Bax J, Benninger G, Blomstrom-Lundqvist C, Boriani G, et al. (January 2016). "A roadmap to improve the quality of atrial fibrillation management: proceedings from the fifth Atrial Fibrillation Network/European Heart Rhythm Association consensus conference". Europace. 18 (1): 37–50. doi:10.1093/europace/euv304. PMID 26481149.
70. Mairesse GH, Moran P, Van Gelder IC, Elsner C, Rosenqvist M, Mant J, et al. (October 2017). "Screening for atrial fibrillation: a European Heart Rhythm Association (EHRA) consensus document endorsed by the Heart Rhythm Society (HRS), Asia Pacific Heart Rhythm Society (APHRS), and Sociedad Latinoamericana de Estimulación Cardíaca y Electrofisiología (SOLAECE)". Europace. 19 (10): 1589–1623. doi:10.1093/europace/eux177. PMID 29048522.
71. ^ Freedman B, Camm J, Calkins H, Healey JS, Rosenqvist M, Wang J, et al. (May 2017). "Screening for Atrial Fibrillation: A Report of the AF-SCREEN International Collaboration". Circulation. 135 (19): 1851–1867. doi:10.1161/CIRCULATIONAHA.116.026693. hdl:11380/1139441. PMID 28483832. S2CID 207655707.
72. Stott DJ, Dewar RI, Garratt CJ, Griffith KE, Harding NJ, James MA, et al. (March 2012). "RCPE UK Consensus Conference on 'approaching the comprehensive management of atrial fibrillation: evolution or revolution?'". The Journal of the Royal College of Physicians of Edinburgh. 42 (1): 34–35. doi:10.4997/JRCPE.2012.S01. PMID 22441062.
73. Hobbs FR, Taylor CJ, Jan Geersing G, Rutten FH, Brouwer JR (March 2016). "European Primary Care Cardiovascular Society (EPCCS) consensus guidance on stroke prevention in atrial fibrillation (SPAF) in primary care". European Journal of Preventive Cardiology. 23 (5): 460–473. doi:10.1177/2047487315571890. PMC 4766963. PMID 25701017.
74. "Reports and Publications | HIQA". www.hiqa.ie.
75. Lowres N, Olivier J, Chao TF, Chen SA, Chen Y, Diederichsen A, et al. (September 2019). "Estimated stroke risk, yield, and number needed to screen for atrial fibrillation detected through single time screening: a multicountry patient-level meta-analysis of 141,220 screened individuals". PLOS Medicine. 16 (9): e1002903. doi:10.1371/journal.pmed.1002903. PMC 6760766. PMID 31553733.
76. Curry SJ, Krist AH, Owens DK, Barry MJ, Caughey AB, Davidson KW, et al. (August 2018). "Screening for Atrial Fibrillation With Electrocardiography: US Preventive Services Task Force Recommendation Statement". JAMA. 320 (5). US Preventive Services Task Force.: 478–484. doi:10.1001/jama.2018.10321. PMID 30088016.
77. Issa ZF, Miller JM, Zipes DP (2009). Clinical arrhythmology and electrophysiology: a companion to Braunwald's heart disease. Philadelphia: Saunders. p. 221. ISBN 978-1-4160-5998-1. Archived from the original on 8 September 2017.
78. ^ Romero J, Cao JJ, Garcia MJ, Taub CC (August 2014). "Cardiac imaging for assessment of left atrial appendage stasis and thrombosis". Nature Reviews. Cardiology. 11 (8): 470–480. doi:10.1038/nrcardio.2014.77. PMID 24913058. S2CID 29114242.
79. ^ Blackshear JL, Odell JA (February 1996). "Appendage obliteration to reduce stroke in cardiac surgical patients with atrial fibrillation". The Annals of Thoracic Surgery. 61 (2): 755–759. doi:10.1016/0003-4975(95)00887-X. PMID 8572814.
80. Ramlawi B, Abu Saleh WK, Edgerton J (2015). "The Left Atrial Appendage: Target for Stroke Reduction in Atrial Fibrillation". Methodist DeBakey Cardiovascular Journal. 11 (2): 100–103. doi:10.14797/mdcj-11-2-100. PMC 4547664. PMID 26306127.
81. ^ Couderc JP, Kyal S, Mestha LK, Xu B, Peterson DR, Xia X, et al. (2015). "Detection of atrial fibrillation using contactless facial video monitoring". Heart Rhythm. 12 (1): 195–201. doi:10.1016/j.hrthm.2014.08.035. ISSN 1556-3871. PMID 25179488.
82. Sun Z, Junttila J, Tulppo M, Seppänen T, Li X (6 August 2022), "Non-Contact Atrial Fibrillation Detection from Face Videos by Learning Systolic Peaks", IEEE Journal of Biomedical and Health Informatics, 26 (9): 4587–4598, arXiv:2110.07610, doi:10.1109/JBHI.2022.3193117, PMID 35867368
83. ^ Couderc JP, Page A, Lutz M, Tsouri GR, Hall B (1 December 2022). "Assessment of facial video-based detection of atrial fibrillation across human complexion". Cardiovascular Digital Health Journal. 3 (6): 305–312. doi:10.1016/j.cvdhj.2022.08.003. ISSN 2666-6936. PMC 9795266. PMID 36589315.
84. Vudathaneni VK, Lanke RB, Mudaliyar MC, Movva KV, Kalluri LM, Boyapati R (4 March 2024). "The Impact of Telemedicine and Remote Patient Monitoring on Healthcare Delivery: A Comprehensive Evaluation". Cureus. 16 (3): e55534. doi:10.7759/cureus.55534. PMC 10993086. PMID 38576693.
85. "Gender Shades". gendershades.org. Retrieved 10 December 2024.
86. ^ January CT, Wann LS, Calkins H, Chen LY, Cigarroa JE, Cleveland JC, et al. (August 2019). "2019 AHA/ACC/HRS focused update of the 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society". Heart Rhythm (Review). 16 (8): e66–e93. doi:10.1016/j.hrthm.2019.01.024. PMID 30703530.
87. Prystowsky EN, Padanilam BJ, Fogel RI (July 2015). "Treatment of Atrial Fibrillation". JAMA. 314 (3): 278–288. doi:10.1001/jama.2015.7505. PMID 26197188. S2CID 205070036.
88. Valembois L, Audureau E, Takeda A, Jarzebowski W, Belmin J, Lafuente-Lafuente C (September 2019). "Antiarrhythmics for maintaining sinus rhythm after cardioversion of atrial fibrillation". The Cochrane Database of Systematic Reviews. 2019 (9): CD005049. doi:10.1002/14651858.CD005049.pub5. PMC 6738133. PMID 31483500.
89. Romiti GF, Pastori D, Rivera-Caravaca JM, Ding WY, Gue YX, Menichelli D, et al. (March 2022). "Adherence to the 'Atrial Fibrillation Better Care' Pathway in Patients with Atrial Fibrillation: Impact on Clinical Outcomes-A Systematic Review and Meta-Analysis of 285,000 Patients". Thrombosis and Haemostasis. 122 (3): 406–414. doi:10.1055/A-1515-9630. hdl:2434/887644. PMID 34020488.
90. Proietti M, Romiti GF, Olshansky B, Lane DA, Lip GY (November 2018). "Improved Outcomes by Integrated Care of Anticoagulated Patients with Atrial Fibrillation Using the Simple ABC (Atrial Fibrillation Better Care) Pathway" (PDF). The American Journal of Medicine. 131 (11): 1359–1366.e6. doi:10.1016/j.amjmed.2018.06.012. hdl:2183/31714. PMID 30153428. S2CID 52114134.
91. Proietti M, Romiti GF, Olshansky B, Lane DA, Lip GY (May 2020). "Comprehensive Management With the ABC (Atrial Fibrillation Better Care) Pathway in Clinically Complex Patients With Atrial Fibrillation: A Post Hoc Ancillary Analysis From the AFFIRM Trial". Journal of the American Heart Association. 9 (10): e014932. doi:10.1161/JAHA.119.014932. PMC 7660878. PMID 32370588.
92. Pastori D, Pignatelli P, Menichelli D, Violi F, Lip GY (July 2019). "Integrated Care Management of Patients With Atrial Fibrillation and Risk of Cardiovascular Events: The ABC (Atrial fibrillation Better Care) Pathway in the ATHERO-AF Study Cohort". Mayo Clinic Proceedings. 94 (7): 1261–1267. doi:10.1016/j.mayocp.2018.10.022. PMID 30551910. S2CID 54623946.
93. Lip GY (November 2017). "The ABC pathway: an integrated approach to improve AF management". Nature Reviews. Cardiology. 14 (11): 627–628. doi:10.1038/nrcardio.2017.153. PMID 28960189. S2CID 36013527.
94. Sanders GD, Lowenstern A, Borre E, Chatterjee R, Goode A, Sharan L, et al. (30 October 2018). Stroke Prevention in Patients With Atrial Fibrillation: A Systematic Review Update (Report). Agency for Healthcare Research and Quality (AHRQ). doi:10.23970/ahrqepccer214 (inactive 12 December 2024).{{cite report}}: CS1 maint: DOI inactive as of December 2024 (link)
95. Verma A, Kalman JM, Callans DJ (April 2017). "Treatment of Patients With Atrial Fibrillation and Heart Failure With Reduced Ejection Fraction". Circulation. 135 (16): 1547–1563. doi:10.1161/CIRCULATIONAHA.116.026054. PMID 28416525. S2CID 207646320.
96. Verdecchia P, Angeli F, Reboldi G (January 2018). "Hypertension and Atrial Fibrillation: Doubts and Certainties From Basic and Clinical Studies". Circulation Research. 122 (2): 352–368. doi:10.1161/CIRCRESAHA.117.311402. PMID 29348255. S2CID 33841631.
97. Simons SO, Elliott A, Sastry M, Hendriks JM, Arzt M, Rienstra M, et al. (February 2021). "Chronic obstructive pulmonary disease and atrial fibrillation: an interdisciplinary perspective". European Heart Journal. 42 (5): 532–540. doi:10.1093/eurheartj/ehaa822. hdl:1942/35482. PMID 33206945.
98. Romiti GF, Corica B, Pipitone E, Vitolo M, Raparelli V, Basili S, et al. (September 2021). "Prevalence, management and impact of chronic obstructive pulmonary disease in atrial fibrillation: a systematic review and meta-analysis of 4,200,000 patients". European Heart Journal. 42 (35): 3541–3554. doi:10.1093/eurheartj/ehab453. hdl:2434/887636. PMID 34333599.
99. Voskoboinik A, Kalman JM, De Silva A, Nicholls T, Costello B, Nanayakkara S, et al. (January 2020). "Alcohol Abstinence in Drinkers with Atrial Fibrillation". The New England Journal of Medicine. 382 (1): 20–28. doi:10.1056/NEJMoa1817591. PMID 31893513.
100. Lip GY, Lane DA (May 2015). "Stroke prevention in atrial fibrillation: a systematic review". JAMA. 313 (19): 1950–1962. doi:10.1001/jama.2015.4369. PMID 25988464.
101. Zarraga IG, Kron J (January 2013). "Oral anticoagulation in elderly adults with atrial fibrillation: integrating new options with old concepts". Journal of the American Geriatrics Society. 61 (1): 143–150. doi:10.1111/jgs.12042. PMID 23252345. S2CID 34366717.
102. ^ Kundu A, Sardar P, Chatterjee S, Aronow WS, Owan T, Ryan JJ (July 2016). "Minimizing the Risk of Bleeding with NOACs in the Elderly". Drugs & Aging. 33 (7): 491–500. doi:10.1007/s40266-016-0376-z. PMID 27174293. S2CID 3832073.
103. ^ Morin DP, Bernard ML, Madias C, Rogers PA, Thihalolipavan S, Estes NA (December 2016). "The State of the Art: Atrial Fibrillation Epidemiology, Prevention, and Treatment". Mayo Clinic Proceedings. 91 (12): 1778–1810. doi:10.1016/j.mayocp.2016.08.022. PMID 27825618.
104. ^ Freedman B, Potpara TS, Lip GY (August 2016). "Stroke prevention in atrial fibrillation". Lancet (Review). 388 (10046): 806–817. doi:10.1016/S0140-6736(16)31257-0. PMID 27560276. S2CID 5578741.
105. ^ Andrade JG, Macle L, Nattel S, Verma A, Cairns J (August 2017). "Contemporary Atrial Fibrillation Management: A Comparison of the Current AHA/ACC/HRS, CCS, and ESC Guidelines". The Canadian Journal of Cardiology (Review). 33 (8): 965–976. doi:10.1016/j.cjca.2017.06.002. PMID 28754397.
106. ^ January CT, Wann LS, Calkins H, Chen LY, Cigarroa JE, Cleveland JC, et al. (July 2019). "2019 AHA/ACC/HRS Focused Update of the 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society in Collaboration With the Society of Thoracic Surgeons". Circulation. 140 (2): e125–e151. doi:10.1161/CIR.0000000000000665. PMID 30686041.
107. JCS Joint Working Group (August 2014). "Guidelines for Pharmacotherapy of Atrial Fibrillation (JCS 2013)". Circulation Journal (Review). 78 (8): 1997–2021. doi:10.1253/circj.cj-66-0092. PMID 24965079.
108. Jung BC, Kim NH, Nam GB, Park HW, On YK, Lee YS, et al. (January 2015). "The Korean Heart Rhythm Society's 2014 Statement on Antithrombotic Therapy for Patients with Nonvalvular Atrial Fibrillation: Korean Heart Rhythm Society". Korean Circulation Journal (Review). 45 (1): 9–19. doi:10.4070/kcj.2015.45.1.9. PMC 4310986. PMID 25653698.
109. You JJ, Singer DE, Howard PA, Lane DA, Eckman MH, Fang MC, et al. (February 2012). "Antithrombotic therapy for atrial fibrillation: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines". Chest (Review). 141 (2 Suppl): e531S–e575S. doi:10.1378/chest.11-2304. PMC 3278056. PMID 22315271.
110. Chiang CE, Okumura K, Zhang S, Chao TF, Siu CW, Wei Lim T, et al. (August 2017). "2017 consensus of the Asia Pacific Heart Rhythm Society on stroke prevention in atrial fibrillation". Journal of Arrhythmia (Review). 33 (4): 345–367. doi:10.1016/j.joa.2017.05.004. PMC 5529598. PMID 28765771.
111. Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomström-Lundqvist C, et al. (February 2021). "2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC". European Heart Journal. 42 (5): 373–498. doi:10.1093/eurheartj/ehaa612. hdl:1887/3279676. PMID 32860505.
112. Macle L, Cairns J, Leblanc K, Tsang T, Skanes A, Cox JL, et al. (October 2016). "2016 Focused Update of the Canadian Cardiovascular Society Guidelines for the Management of Atrial Fibrillation". The Canadian Journal of Cardiology. 32 (10): 1170–1185. doi:10.1016/j.cjca.2016.07.591. PMID 27609430.
113. "Atrial fibrillation: management". National Institute of Health Care and Excellence. 18 June 2014.
114. Kirchhof P, Benussi S, Kotecha D, Ahlsson A, Atar D, Casadei B, et al. (October 2016). "2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS". European Heart Journal (Review). 37 (38): 2893–2962. doi:10.1093/eurheartj/ehw210. PMID 27567408.
115. Ciervo CA, Granger CB, Schaller FA (September 2012). "Stroke prevention in patients with atrial fibrillation: disease burden and unmet medical needs". The Journal of the American Osteopathic Association (Review). 112 (9 Suppl 2): eS2–eS8. PMID 23014814. Archived from the original on 5 March 2016.
116. "FDA approves Xarelto to prevent stroke in people with common type of abnormal heart rhythm". FDA. Archived from the original on 5 November 2011. Retrieved 4 November 2011.
117. "FDA approves anti-clotting drug Savaysa". FDA. 8 January 2015. Archived from the original on 19 June 2016. Retrieved 23 June 2016.
118. "FDA approves Eliquis to reduce the risk of stroke, blood clots in patients with non-valvular atrial fibrillation". FDA. Archived from the original on 31 December 2012. Retrieved 30 December 2012.
119. Lowenstern A, Al-Khatib SM, Sharan L, Chatterjee R, Allen LaPointe NM, Shah B, et al. (December 2018). "Interventions for Preventing Thromboembolic Events in Patients With Atrial Fibrillation: A Systematic Review". Annals of Internal Medicine. 169 (11): 774–787. doi:10.7326/M18-1523. PMC 6825839. PMID 30383133.
120. Singer DE, Albers GW, Dalen JE, Go AS, Halperin JL, Manning WJ (September 2004). "Antithrombotic therapy in atrial fibrillation: the Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy". Chest. 126 (3 Suppl): 429S–456S. doi:10.1378/chest.126.3_suppl.429S. PMID 15383480.
121. Hu A, Niu J, Winkelmayer WC (November 2018). "Oral Anticoagulation in Patients With End-Stage Kidney Disease on Dialysis and Atrial Fibrillation". Seminars in Nephrology. 38 (6): 618–628. doi:10.1016/j.semnephrol.2018.08.006. PMC 6233322. PMID 30413255.
122. Qamar A, Vaduganathan M, Greenberger NJ, Giugliano RP (May 2018). "Oral Anticoagulation in Patients With Liver Disease". Journal of the American College of Cardiology. 71 (19): 2162–2175. doi:10.1016/j.jacc.2018.03.023. PMID 29747837.
123. ^ Sharma M, Cornelius VR, Patel JP, Davies JG, Molokhia M (July 2015). "Efficacy and Harms of Direct Oral Anticoagulants in the Elderly for Stroke Prevention in Atrial Fibrillation and Secondary Prevention of Venous Thromboembolism: Systematic Review and Meta-Analysis". Circulation. 132 (3): 194–204. doi:10.1161/CIRCULATIONAHA.114.013267. PMC 4765082. PMID 25995317.
124. ^ Gómez-Outes A, Terleira-Fernández AI, Calvo-Rojas G, Suárez-Gea ML, Vargas-Castrillón E (2013). "Dabigatran, Rivaroxaban, or Apixaban versus Warfarin in Patients with Nonvalvular Atrial Fibrillation: A Systematic Review and Meta-Analysis of Subgroups". Thrombosis. 2013: 640723. doi:10.1155/2013/640723. PMC 3885278. PMID 24455237.
125. Carroll JD, Webb JG (2012). Structural Heart Disease Interventions. Lippincott Williams & Wilkins. p. PT379. ISBN 978-1-4511-5396-5.
126. Bennaghmouch N, de Veer AJ, Bode K, Mahmoodi BK, Dewilde WJ, Lip GY, et al. (March 2018). "Efficacy and Safety of the Use of Non-Vitamin K Antagonist Oral Anticoagulants in Patients With Nonvalvular Atrial Fibrillation and Concomitant Aspirin Therapy: A Meta-Analysis of Randomized Trials". Circulation. 137 (11): 1117–1129. doi:10.1161/CIRCULATIONAHA.117.028513. PMID 29101289. S2CID 24988387.
127. Veeger NJ, Piersma-Wichers M, Hillege HL, Crijns HJ, van der Meer J (July 2006). "Early detection of patients with a poor response to vitamin K antagonists: the clinical impact of individual time within target range in patients with heart disease". Journal of Thrombosis and Haemostasis. 4 (7): 1625–1627. doi:10.1111/j.1538-7836.2006.01997.x. PMID 16839366.
128. Elling T, Hak E, Bos JH, Tichelaar VY, Veeger NJ, Meijer K (October 2023). "Effect of Previous INR Control during VKA Therapy on Subsequent DOAC Adherence and Persistence, in Patients Switched from VKA to DOAC". Thrombosis and Haemostasis. 124 (8): 778–790. doi:10.1055/a-2168-9378. PMC 11259495. PMID 37673103.
129. Adelakun AR, Turgeon RD, De Vera MA, McGrail K, Loewen PS (April 2023). "Oral anticoagulant switching in patients with atrial fibrillation: a scoping review". BMJ Open. 13 (4): e071907. doi:10.1136/bmjopen-2023-071907. PMC 10151984. PMID 37185198.
130. Al-Khatib SM, Allen LaPointe NM, Chatterjee R, Crowley MJ, Dupre ME, Kong DF, et al. (June 2014). "Rate- and rhythm-control therapies in patients with atrial fibrillation: a systematic review". Annals of Internal Medicine. 160 (11): 760–773. doi:10.7326/M13-1467. PMID 24887617.
131. Frankel G, Kamrul R, Kosar L, Jensen B (February 2013). "Rate versus rhythm control in atrial fibrillation". Canadian Family Physician. 59 (2): 161–168. PMC 3576947. PMID 23418244.
132. Thrall G, Lane D, Carroll D, Lip GY (May 2006). "Quality of life in patients with atrial fibrillation: a systematic review". The American Journal of Medicine. 119 (5): 448.e1–448.19. doi:10.1016/j.amjmed.2005.10.057. PMID 16651058.
133. Trulock KM, Narayan SM, Piccini JP (August 2014). "Rhythm control in heart failure patients with atrial fibrillation: contemporary challenges including the role of ablation". Journal of the American College of Cardiology. 64 (7): 710–721. doi:10.1016/j.jacc.2014.06.1169. PMID 25125304. Multiple studies have compared pharmacological rate and rhythm strategies but have failed to identify a superior therapy, a finding that extends to patients with HF. ... Antiarrhythmic drug therapy is indicated as first-line therapy for AF that remains symptomatic despite adequate rate control.
134. Onalan O, Crystal E, Daoulah A, Lau C, Crystal A, Lashevsky I (June 2007). "Meta-analysis of magnesium therapy for the acute management of rapid atrial fibrillation". The American Journal of Cardiology. 99 (12): 1726–1732. doi:10.1016/j.amjcard.2007.01.057. PMID 17560883.
135. ^ Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH, et al. (May 2013). "Management of patients with atrial fibrillation (compilation of 2006 ACCF/AHA/ESC and 2011 ACCF/AHA/HRS recommendations): a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines". Journal of the American College of Cardiology. 61 (18): 1935–1944. doi:10.1016/j.jacc.2013.02.001. PMID 23558044.
136. Badheka AO, Shah N, Grover PM, Patel NJ, Chothani A, Mehta K, et al. (April 2014). "Outcomes in atrial fibrillation patients with and without left ventricular hypertrophy when treated with a lenient rate-control or rhythm-control strategy". The American Journal of Cardiology. 113 (7): 1159–1165. doi:10.1016/j.amjcard.2013.12.021. PMID 24507168.
137. "Atrial fibrillation: national clinical guideline for management in primary and secondary care" (PDF). National Collaborating Centre for Chronic Conditions. London: Royal College of Physicians. 2006. Archived from the original (PDF) on 22 May 2013. Retrieved 9 May 2009.
138. Kirkland S, Stiell I, AlShawabkeh T, Campbell S, Dickinson G, Rowe BH (July 2014). "The efficacy of pad placement for electrical cardioversion of atrial fibrillation/flutter: a systematic review". Academic Emergency Medicine. 21 (7): 717–726. doi:10.1111/acem.12407. PMID 25117151. S2CID 36859521.
139. Singh BN, Connolly SJ, Crijns HJ, Roy D, Kowey PR, Capucci A, et al. (September 2007). "Dronedarone for maintenance of sinus rhythm in atrial fibrillation or flutter". The New England Journal of Medicine. 357 (10): 987–999. doi:10.1056/NEJMoa054686. hdl:11566/54713. PMID 17804843. S2CID 9264507.
140. Watson T, Shantsila E, Lip GY (January 2009). "Mechanisms of thrombogenesis in atrial fibrillation: Virchow's triad revisited". Lancet. 373 (9658): 155–166. doi:10.1016/S0140-6736(09)60040-4. PMID 19135613. S2CID 35178625.
141. Haïssaguerre M, Jaïs P, Shah DC, Takahashi A, Hocini M, Quiniou G, et al. (September 1998). "Spontaneous initiation of atrial fibrillation by ectopic beats originating in the pulmonary veins". The New England Journal of Medicine. 339 (10): 659–666. doi:10.1056/NEJM199809033391003. PMID 9725923.
142. ^ Upadhyay GA, Alenghat FJ (August 2019). "Catheter Ablation for Atrial Fibrillation in 2019". JAMA. 322 (7): 686–687. doi:10.1001/jama.2019.10929. PMID 31429886. S2CID 201099189.
143. Leong-Sit P, Zado E, Callans DJ, Garcia F, Lin D, Dixit S, et al. (October 2010). "Efficacy and risk of atrial fibrillation ablation before 45 years of age". Circulation: Arrhythmia and Electrophysiology. 3 (5): 452–457. doi:10.1161/circep.110.938860. PMID 20858861.
144. Vrachatis D, Deftereos S, Kekeris V, Tsoukala S, Giannopoulos G (December 2018). "Catheter Ablation for Atrial Fibrillation in Systolic Heart Failure Patients: Stone by Stone, a CASTLE". Arrhythmia & Electrophysiology Review. 7 (4): 265–272. doi:10.15420/aer.2018.41.2. PMC 6304798. PMID 30588315.
145. Scherr D, Khairy P, Miyazaki S, Aurillac-Lavignolle V, Pascale P, Wilton SB, et al. (February 2015). "Five-year outcome of catheter ablation of persistent atrial fibrillation using termination of atrial fibrillation as a procedural endpoint". Circulation: Arrhythmia and Electrophysiology. 8 (1): 18–24. doi:10.1161/CIRCEP.114.001943. PMID 25528745.
146. Han HC, Ha FJ, Sanders P, Spencer R, Teh AW, O'Donnell D, et al. (November 2017). "Atrioesophageal Fistula: Clinical Presentation, Procedural Characteristics, Diagnostic Investigations, and Treatment Outcomes". Circulation: Arrhythmia and Electrophysiology. 10 (11): e005579. doi:10.1161/CIRCEP.117.005579. PMID 29109075. S2CID 20081569.
147. Matos CD, Hoyos C, Osorio J (2023). "Pulsed Field Ablation of Atrial Fibrillation: A Comprehensive Review". Reviews in Cardiovascular Medicine. 24 (11): 337. doi:10.31083/j.rcm2411337. PMC 11272841. PMID 39076426.
148. Larson J, Merchant FM, Westerman S (2020). "Outcomes of convergent atrial fibrillation ablation with continuous rhythm monitoring". Journal of Cardiovascular Electrophysiology. 31 (6): 1270–1276. doi:10.1111/jce.14454. PMID 32219901.
149. DeLurgio DB, Gill JS, Halkos ME (2021). "Hybrid Convergent Procedure for the Treatment of Persistent and Long-standing Persistent Atrial Fibrillation". Arrhythmia & Electrophysiology Review. 10 (3): 198–204. doi:10.15420/aer.2021.24. PMC 8576514. PMID 34777825.
150. Northwestern Surgery for Atrial Fibrillation. Atrial Fibrillation Surgery Archived 19 April 2012 at the Wayback Machine
151. Huffman MD, Karmali KN, Berendsen MA, Andrei AC, Kruse J, McCarthy PM, et al. (Cochrane Heart Group) (August 2016). "Concomitant atrial fibrillation surgery for people undergoing cardiac surgery". The Cochrane Database of Systematic Reviews. 2016 (8): CD011814. doi:10.1002/14651858.CD011814.pub2. PMC 5046840. PMID 27551927.
152. Blackstone EH, Chang HL, Rajeswaran J, Parides MK, Ishwaran H, Li L, et al. (January 2019). "Biatrial maze procedure versus pulmonary vein isolation for atrial fibrillation during mitral valve surgery: New analytical approaches and end points". The Journal of Thoracic and Cardiovascular Surgery. 157 (1): 234–243.e9. doi:10.1016/j.jtcvs.2018.06.093. PMC 6486838. PMID 30557941. S2CID 56176611.
153. Sef D, Trkulja V, Raja SG, Hooper J, Turina MI (November 2022). "Comparing mid-term outcomes of Cox-Maze procedure and pulmonary vein isolation for atrial fibrillation after concomitant mitral valve surgery: A systematic review". Journal of Cardiac Surgery. 37 (11): 3801–3810. doi:10.1111/jocs.16888. PMC 9804989. PMID 36040710. S2CID 251932594.
154. Zhou X, Zhang W, Lv W, Zhou Q, Li Y, Zhang L, et al. (January 2016). "Left atrial appendage occlusion in atrial fibrillation for stroke prevention: A systemic review". International Journal of Cardiology. 203: 55–59. doi:10.1016/j.ijcard.2015.10.011. PMID 26492310.
155. Glikson M, Wolff R, Hindricks G, Mandrola J, Camm AJ, Lip GY, et al. (January 2020). "EHRA/EAPCI expert consensus statement on catheter-based left atrial appendage occlusion - an update". EuroIntervention. 15 (13): 1133–1180. doi:10.4244/EIJY19M08_01. PMID 31474583. S2CID 201717267.
156. AlTurki A, Huynh T, Essebag V (2018). "Left atrial appendage isolation in atrial fibrillation catheter ablation: A meta-analysis". Journal of Arrhythmia. 34 (5): 478–484. doi:10.1002/joa3.12095. PMC 6174377. PMID 30327692.
157. January CT, Wann LS, Alpert JS, Calkins H, Cigarroa JE, Cleveland JC, et al. (December 2014). "2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on practice guidelines and the Heart Rhythm Society". Circulation. 130 (23): e199–e267. doi:10.1161/CIR.0000000000000041. PMC 4676081. PMID 24682347.
     • Executive summary: January CT, Wann LS, Alpert JS, Calkins H, Cigarroa JE, Cleveland JC, et al. (December 2014). "2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on practice guidelines and the Heart Rhythm Society". Circulation. 130 (23): 2071–2104. doi:10.1161/CIR.0000000000000040. PMID 24682348.
158. Kaleda VI, McCormack DJ, Shipolini AR (April 2012). "Does posterior pericardiotomy reduce the incidence of atrial fibrillation after coronary artery bypass grafting surgery?". Interactive Cardiovascular and Thoracic Surgery. 14 (4): 384–389. doi:10.1093/icvts/ivr099. PMC 3309809. PMID 22235005.
159. Wijesurendra RS, Casadei B (December 2019). "Mechanisms of atrial fibrillation". Heart. 105 (24): 1860–1867. doi:10.1136/heartjnl-2018-314267. PMID 31444267. S2CID 201631227.
160. Blum S, Aeschbacher S, Meyre P, Zwimpfer L, Reichlin T, Beer JH, et al. (October 2019). "Incidence and Predictors of Atrial Fibrillation Progression". Journal of the American Heart Association. 8 (20): e012554. doi:10.1161/JAHA.119.012554. PMC 6818023. PMID 31590581.
161. Odutayo A, Wong CX, Hsiao AJ, Hopewell S, Altman DG, Emdin CA (September 2016). "Atrial fibrillation and risks of cardiovascular disease, renal disease, and death: systematic review and meta-analysis". BMJ. 354: i4482. doi:10.1136/bmj.i4482. hdl:1721.1/108109. PMID 27599725. S2CID 7881115.
162. Emdin CA, Wong CX, Hsiao AJ, Altman DG, Peters SA, Woodward M, et al. (January 2016). "Atrial fibrillation as risk factor for cardiovascular disease and death in women compared with men: systematic review and meta-analysis of cohort studies". BMJ. 532: h7013. doi:10.1136/bmj.h7013. PMC 5482349. PMID 26786546.
163. ^ Rivard L, Khairy P (December 2017). "Mechanisms, Clinical Significance, and Prevention of Cognitive Impairment in Patients With Atrial Fibrillation". The Canadian Journal of Cardiology (Review). 33 (12): 1556–1564. doi:10.1016/j.cjca.2017.09.024. PMID 29173598.
164. Atrial fibrillation and risk of stroke: a nationwide cohort study. Christine Benn Christiansen, Thomas A. Gerds, Jonas Bjerring Olesen, Søren Lund Kristensen, Morten Lamberts, Gregory Y.H. Lip, Gunnar H. Gislason, Lars Køber, Christian Torp-Pedersen. EP Europace, Volume 18, Issue 11, November 2016, Pages 1689–1697, https://doi.org/10.1093/europace/euv401 https://academic.oup.com/europace/article/18/11/1689/2437498 accessed 12 Oct 2020
165. Lopes RD, Crowley MJ, Shah BR, et al. Stroke Prevention in Atrial Fibrillation. Comparative Effectiveness Review No. 123. AHRQ Publication No. 13-EHC113-EF. Rockville, MD: Agency for Healthcare Research and Quality; August 2013. www.effectivehealthcare.ahrq.gov/ reports/final.cfm.
166. Aulin J, Sjölin K, Lindbäck J, Benz AP, Eikelboom JW, Hijazi Z, et al. (24 July 2024). "Neurofilament Light Chain and Risk of Stroke in Patients With Atrial Fibrillation". Circulation. 150 (14): 1090–1100. doi:10.1161/CIRCULATIONAHA.124.069440. ISSN 0009-7322. PMID 39045686.
167. Olesen JB, Torp-Pedersen C, Hansen ML, Lip GY (June 2012). "The value of the CHA2DS2-VASc score for refining stroke risk stratification in patients with atrial fibrillation with a CHADS2 score 0-1: a nationwide cohort study". Thrombosis and Haemostasis. 107 (6): 1172–1179. doi:10.1160/th12-03-0175. PMID 22473219. S2CID 10318035.
168. Al-Saady NM, Obel OA, Camm AJ (November 1999). "Left atrial appendage: structure, function, and role in thromboembolism". Heart. 82 (5): 547–554. doi:10.1136/hrt.82.5.547. PMC 1760793. PMID 10525506.
169. Sjölin K, Aulin J, Wallentin L, Eriksson N, Held C, Kultima K, et al. (July 2022). "Serum Neurofilament Light Chain in Patients With Atrial Fibrillation". Journal of the American Heart Association. 11 (14): e025910. doi:10.1161/JAHA.122.025910. PMC 9707825. PMID 35861814.
170. ^ Diener HC, Hart RG, Koudstaal PJ, Lane DA, Lip GY (February 2019). "Atrial Fibrillation and Cognitive Function: JACC Review Topic of the Week". Journal of the American College of Cardiology. 73 (5): 612–619. doi:10.1016/j.jacc.2018.10.077. PMID 30732716.
171. Madhavan M, Graff-Radford J, Piccini JP, Gersh BJ (December 2018). "Cognitive dysfunction in atrial fibrillation". Nature Reviews. Cardiology. 15 (12): 744–756. doi:10.1038/s41569-018-0075-z. PMID 30275499. S2CID 52901769.
172. ^ Kirchhof P, Benussi S, Kotecha D, Ahlsson A, Atar D, Casadei B, et al. (October 2016). "2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS". European Heart Journal. 37 (38): 2893–2962. doi:10.1093/eurheartj/ehw210. PMID 27567408.
173. Friberg J, Buch P, Scharling H, Gadsbphioll N, Jensen GB (November 2003). "Rising rates of hospital admissions for atrial fibrillation". Epidemiology. 14 (6): 666–672. doi:10.1097/01.ede.0000091649.26364.c0. PMID 14569181. S2CID 19079630.
174. Kishore A, Vail A, Majid A, Dawson J, Lees KR, Tyrrell PJ, et al. (February 2014). "Detection of atrial fibrillation after ischemic stroke or transient ischemic attack: a systematic review and meta-analysis". Stroke. 45 (2): 520–526. doi:10.1161/STROKEAHA.113.003433. PMID 24385275.
175. Sanfilippo AJ, Abascal VM, Sheehan M, Oertel LB, Harrigan P, Hughes RA, et al. (September 1990). "Atrial enlargement as a consequence of atrial fibrillation. A prospective echocardiographic study". Circulation. 82 (3): 792–797. doi:10.1161/01.CIR.82.3.792. PMID 2144217.
176. ^ Gourraud JB, Khairy P, Abadir S, Tadros R, Cadrin-Tourigny J, Macle L, et al. (July 2018). "Atrial fibrillation in young patients". Expert Review of Cardiovascular Therapy. 16 (7): 489–500. doi:10.1080/14779072.2018.1490644. PMID 29912584. S2CID 49305621.
177. Go AS, Hylek EM, Phillips KA, Chang Y, Henault LE, Selby JV, et al. (May 2001). "Prevalence of diagnosed atrial fibrillation in adults: national implications for rhythm management and stroke prevention: the AnTicoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study". primary source. JAMA. 285 (18): 2370–2375. doi:10.1001/jama.285.18.2370. PMID 11343485.
178. Schnabel RB, Yin X, Gona P, Larson MG, Beiser AS, McManus DD, et al. (July 2015). "50 year trends in atrial fibrillation prevalence, incidence, risk factors, and mortality in the Framingham Heart Study: a cohort study". Lancet. 386 (9989): 154–162. doi:10.1016/S0140-6736(14)61774-8. PMC 4553037. PMID 25960110.
179. Dewland TA, Olgin JE, Vittinghoff E, Marcus GM (December 2013). "Incident atrial fibrillation among Asians, Hispanics, blacks, and whites". Circulation. 128 (23): 2470–2477. doi:10.1161/CIRCULATIONAHA.113.002449. PMID 24103419.
180. Vulpian A (1874). "Note sur les effets de la faradisation directe des ventricules du coeur chez le chien". Archives de Physiologie Normale et Pathologique. 6: 975.
181. McMichael J (September 1982). "History of atrial fibrillation 1628-1819 Harvey - de Senac - Laënnec". British Heart Journal. 48 (3): 193–197. doi:10.1136/hrt.48.3.193. PMC 481228. PMID 7049202.
182. Nothnagel H (1876). "Ueber arythmische Herzthatigkeit". Deutsches Archiv für Klinische Medizin. 17: 190–220.
183. Mackenzie J (March 1904). "Observations on the Inception of the Rhythm of the Heart by the Ventricle: As the cause of Continuous Irregularity of the Heart". British Medical Journal. 1 (2253): 529–536. doi:10.1136/bmj.1.2253.529. PMC 2353402. PMID 20761393.
184. Einthoven W (1906). "Le telecardiogramme". Archives Internationales de Physiologie. 4: 132–64.
185. Rothberger CJ, Winterberg H (1909). "Vorhofflimmern und Arhythmia perpetua". Wiener Klinische Wochenschrift. 22: 839–44.
186. Lewis T (November 1909). "Report CXIX. Auricular fibrillation: a common clinical condition". British Medical Journal. 2 (2552): 1528. doi:10.1136/bmj.2.2552.1528. PMC 2321318. PMID 20764769.
187. Flegel KM (June 1995). "From delirium cordis to atrial fibrillation: historical development of a disease concept". Annals of Internal Medicine. 122 (11): 867–873. doi:10.7326/0003-4819-122-11-199506010-00010. PMID 7741373. S2CID 10629315.
188. ^ Pariaut R (September 2017). "Atrial Fibrillation: Current Therapies". The Veterinary Clinics of North America. Small Animal Practice. 47 (5): 977–988. doi:10.1016/j.cvsm.2017.04.002. PMID 28645513.
189. ^ van Loon G (April 2019). "Cardiac Arrhythmias in Horses". The Veterinary Clinics of North America. Equine Practice. 35 (1): 85–102. doi:10.1016/j.cveq.2018.12.004. PMID 30871832. S2CID 78092141.

Further reading

• January CT, Wann LS, Calkins H, Chen LY, Cigarroa JE, Cleveland JC, et al. (July 2019). "2019 AHA/ACC/HRS Focused Update of the 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society". Journal of the American College of Cardiology. 74 (1): 104–132. doi:10.1161/CIR.0000000000000665. PMID 30703431.

External links

• "Atrial Fibrillation". CVD Roadmaps. World Heart Federation.
• Media related to Atrial fibrillation at Wikimedia Commons

• Cardiac arrhythmia