Materiały źródłowe

• #1 Heart arrhythmia – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/heart-arrhythmia/symptoms-causes/syc-20350668

  A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don’t work properly. The heart may beat too fast or too slow. Or the pattern of the heartbeat may be inconsistent. […] To understand the cause of heart arrhythmias, it may help to know how the heart works. […] But some things can change how electrical signals travel through the heart and cause arrhythmias. They include: A heart attack or scarring from a previous heart attack. Blocked arteries in the heart, called coronary artery disease. Changes to the heart’s structure, such as from cardiomyopathy. Diabetes. High blood pressure. Infection with COVID-19. Overactive or underactive thyroid gland. Sleep apnea. Some medicines, including those used to treat colds and allergies. Drinking too much alcohol or caffeine. Illegal drug use or drug misuse. Genetics. Smoking. Stress or anxiety.

• #1 Arrhythmias – Causes and Triggers | NHLBI, NIH

  https://www.nhlbi.nih.gov/health/arrhythmias/causes

  Arrhythmias are often caused by a problem with the electrical signals within the heart. Often, an arrhythmia is set off by a trigger. Sometimes the cause of an arrhythmia is not known. […] Conditions that cause a slowing of your hearts electrical signals are called conduction disorders. […] As we age, changes in our heart such as scarring and the effects of other chronic conditions can raise the risk of arrhythmias. Older adults are also more likely to have health conditions, such as high blood pressure, heart failure, diabetes, and thyroid disease, that can lead to arrhythmias. […] Arrhythmias can run in families. You may have an increased risk of some types of arrhythmias if a parent or other close relative has an arrhythmia. […] Sometimes, medicines your doctor prescribes for other health conditions can cause an arrhythmia.

• #1 What is an Arrhythmia? | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia

  The term “arrhythmia” refers to any problem in the rate or rhythm of a person’s heartbeat. During an arrhythmia, the electrical impulses may be too fast, too slow or erratic, causing an irregular heartbeat. […] Arrhythmias can be caused by: […] A delay or blockage of the electrical signals that control the heartbeat […] Another part of the heart taking over as pacemaker […] Changes to heart tissue caused by changes in blood flow, damage to the heart’s electrical system or stiffening or scarring of the heart tissue […] Excessive exertion, strain or stress […] An imbalance of fluids, hormones or electrolytes in the blood […] Certain heart medications. […] An arrhythmia occurs when: […] The heart’s natural pacemaker develops an abnormal rate or rhythm. […] The normal conduction pathway is interrupted or changed. […] Another part of the heart takes over as a pacemaker.

• #1 Arrhythmias Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/arrhythmias

  An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly. […] Arrhythmias are caused by problems with the heart’s electrical conduction system. […] Some common causes of abnormal heartbeats are: Abnormal levels of potassium, magnesium, or other substances in the body; Heart attack, or a damaged heart muscle from a past heart attack; Heart disease that is present at birth (congenital); Heart failure or an enlarged heart; Overactive thyroid gland. […] Arrhythmias may also be caused by some substances or drugs, including: Alcohol or stimulant drugs; Certain medicines; Cigarette smoking (nicotine).

• #1 Arrhythmias – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK558923/

  Risk Factors: Structural heart disease and post-myocardial infarction. […] Bradyarrhythmia is defined as a heart rate below 60 beats per minute (bpm) and comprises several rhythm disorders, including atrioventricular (A-V) blocks and sinus node disorders. […] Atrioventricular Blocks: Mechanism: Atrial impulses are conducted with a delay or not at all when an electrical impulse reaches a tissue that not excitable or is in a refractory period. […] Sinus Node Dysfunction: Mechanism: Senescence of the SA node, an ischemic event involving the SA node leading to impulse generation at a slower rate. […] Hypertrophic Obstructive Cardiomyopathy: Mechanism: Subaortic outflow tract obstruction from abnormal hypertrophy of the septal region of the heart, leading to precipitation of ventricular arrhythmias.

• #1 Arrhythmia: Symptoms, Types, Causes, Treatment, Prevention

  https://www.healthline.com/health/arrhythmia

  An arrhythmia is a disorder of the heart that affects the rate or rhythm at which the heart beats; basically the way the electricity works. […] It happens when electrical impulses that direct and regulate heartbeats dont function properly. This causes the heart to beat: too fast (tachycardia), too slow (bradycardia), too early (premature contraction), too erratically (fibrillation). […] Arrhythmias can have medical, physical, emotional, or genetic causes. The cause may also be unknown. […] Conditions that cause a slow heart rate can include: heart block, sick sinus syndrome. […] Changes in blood flow or physical alterations to the heart, such as scarring, can also cause arrhythmia. Other medical conditions may also be the source. They can include: high blood pressure, dehydration, thyroid disorder, sleep apnea, diabetes, electrolyte imbalance, such as from low levels of calcium, potassium, or magnesium, anemia.

• #1 Heart Arrhythmia > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/heart-arrhythmia

  Heart arrhythmia causes the heart to beat irregularly. […] Heart arrhythmia causes heart palpitations, fatigue, dizziness, and fainting. […] However, when electrical abnormalities cause abnormal heart rhythms, or arrhythmia, you may experience palpitations, which feel like the heart is skipping, fluttering, or beating too hard or too fast. […] While heart arrhythmias can be due to a variety of conditions, doctors at Yale Medicine are experts at diagnosing and treating the underlying causes. […] Our heartbeats are controlled by electrical signals, and arrhythmia can happen if those electrical signals are delayed or blocked. […] This can happen because of problems with heart muscle cells or blockages in the hearts electrical system, or when extra circuits or spots in the heart give off extra beats.

• #1 Arrhythmia: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/16749-arrhythmia

  An arrhythmia is a heart rhythm that isnt normal. […] Arrhythmia causes include: Coronary artery disease. […] Most arrhythmias happen because of an issue with your hearts arteries, valves or muscles. […] Without treatment, arrhythmias can lead to complications such as: Weakening of your heart muscle (cardiomyopathy). […] Depending on the type of cardiac arrhythmia you have, you may have mild or severe symptoms or none at all. […] Harmless arrhythmias go away and come back in response to what triggers them. However, people with other types of arrhythmias especially those that put you at risk for cardiac arrest need treatment for the rest of their lives.

• #1 Heart Rhythm Disorders | UpBeat.org – powered by the Heart Rhythm Society

  https://upbeat.org/heart-rhythm-disorders

  Atrial fibrillation (AFib) is the most common abnormal heart rhythm. […] Atrial flutter is similar to AFib because it also occurs in the atria or upper chambers of the heart and can result in a fast heartbeat. […] Cardiomyopathy refers to conditions that affect the myocardium (heart muscle). […] When arteries become so clogged that the flow of blood to the heart is reduced or stopped, the lack of oxygen can damage or kill the heart muscle, causing a heart attack. […] Heart block occurs when electrical signals from the upper chambers of the heart (atria) cannot travel to the lower chambers (ventricles). […] Heart failure (HF), previously called congestive heart failure, is a serious condition most commonly caused by weak pumping of the heart muscle. […] Heart valve problems can be inherited or develop on their own, affecting the heart’s ability to push blood efficiently from chamber to chamber, and out to the rest of the body.

• #1 Heart rhythm problems (arrhythmia)

  https://www.nhs.uk/conditions/arrhythmia/

  Heart rhythm problems happen when there’s a fault with the electrical system that makes your heart beat. […] This can be the result of a heart rhythm condition, such as atrial fibrillation or supraventricular tachycardia (SVT). […] Sometimes other conditions can also cause heart rhythm problems, including: high blood pressure, coronary heart disease, heart valve disease, heart attack, Wolff-Parkinson-White syndrome. […] You can also get an abnormal heartbeat from: medicines, viruses, caffeine, alcohol, smoking or drugs.

• #1 Atrial fibrillation – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/atrial-fibrillation/symptoms-causes/syc-20350624

  Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. An irregular heart rhythm is called an arrhythmia. AFib can lead to blood clots in the heart. The condition also increases the risk of stroke, heart failure and other heart-related complications. […] Problems with the heart’s structure are the most common cause of atrial fibrillation (AFib). Heart diseases and health problems that can cause AFib include: A heart problem you’re born with, called a congenital heart defect. A problem with the heart’s natural pacemaker, called sick sinus syndrome. A sleep disorder called obstructive sleep apnea. Heart attack. Heart valve disease. High blood pressure. Lung diseases, including pneumonia. Narrowed or blocked arteries, called coronary artery disease. Thyroid disease such as an overactive thyroid. Infections from viruses. […] Lifestyle habits that can trigger an AFib episode may include: Drinking too much alcohol or caffeine. Illegal drug use. Smoking or using tobacco. Taking medicines that contain stimulants, including cold and allergy medicines bought without a prescription.

• #1 Arrhythmia: Types, causes, symptoms, and treatment

  https://www.medicalnewstoday.com/articles/8887

  An arrhythmia is an irregular heartbeat that may feel like a racing or fluttering heart. […] Arrhythmias sometimes called dysrhythmias occur when the electrical signals that coordinate heartbeats are not working correctly. […] If they are highly irregular or result from a weak or damaged heart, arrhythmias can cause severe and potentially fatal symptoms and complications. […] There are several types of arrhythmia. […] AFib is the irregular beating of the atrial chambers and nearly always involves tachycardia. […] A possible cause of VT is scarring from a previous heart attack. […] Ventricular fibrillation (VFib) is an irregular heart rhythm consisting of rapid, uncoordinated, and fluttering contractions of the ventricles. […] Bradycardia is when the heart rhythm is slower than usual, below 60 beats per minute (bpm) for most people.

• #1 Overview of Abnormal Heart Rhythms – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/abnormal-heart-rhythms/overview-of-abnormal-heart-rhythms

  An overactive thyroid gland (hyperthyroidism), producing high levels of thyroid hormone, may cause fast arrhythmias. […] Slow arrhythmias (bradyarrhythmias) may be triggered by pain, hunger, fatigue, digestive disorders (such as diarrhea and vomiting), or swallowing, which can stimulate the vagus nerve excessively. […] An underactive thyroid gland (hypothyroidism), producing low levels of thyroid hormone, may cause slow arrhythmias.

• #1 Arrhythmias – Abnormal heart rhythms – BHF

  https://www.bhf.org.uk/informationsupport/conditions/arrhythmias

  An arrhythmia is an abnormal heart rhythm. Your heart is controlled by a conduction system which sends out electrical impulses. This causes a heartbeat. […] Arrhythmias are caused by a problem in this conduction system, which can make your heart beat too slowly, too quickly, or in an irregular way. […] Some underlying conditions which could cause an arrhythmia are: a heart attack, heart failure, cardiomyopathy, coronary heart disease. […] Some abnormal heart rhythms can be caused by inherited conditions, such as Long QT syndrome, Brugada syndrome, CPVT and PCCD. […] Other common triggers of an arrhythmia include: viral illnesses, recreational drugs, alcohol, smoking, caffeine, medications (over-the-counter and prescribed).

• #1 What Causes Irregular Heartbeat? | Bangkok Heart Hospital

  https://www.bangkokhospital.com/en/bangkok-heart/content/what-causes-irregular-heartbeat

  Irregular heartbeat or arrhythmias can be experienced by people of all ages. Common triggers can be but not limited to cardiovascular disease, thyroid disease, lifestyle, environmental, and genetic factors. Certain types of arrhythmia occur in people with severe heart conditions, and can cause sudden cardiac death. Some of these deaths could be avoided if the arrhythmias were diagnosed earlier. […] Causes that lead to arrhythmias are as below. […] Cardiovascular disease: coronary artery disease, hypertrophic cardiomyopathy, congenital heart disease, hypertension, and valvular heart disease […] Underlying disease: thyroid disease, diabetes, obesity, chronic kidney disease, obstructive sleep apnea […] Genetic.

• #1 Arrhythmia Heart Treatment, Osseo – Mayo Clinic Health System

  https://www.mayoclinichealthsystem.org/locations/osseo/services-and-treatments/cardiology/diseases/arrhythmia

  Congenital heart disease — being born with a heart abnormality may affect your heart’s rhythm. […] Thyroid problems — having an overactive or underactive thyroid gland can raise your risk of arrhythmias. […] Diabetes — your risk of developing coronary artery disease and high blood pressure greatly increases with uncontrolled diabetes. […] Obstructive sleep apnea — this disorder, where your breathing is interrupted during sleep, can increase your risk of bradycardia, atrial fibrillation and other arrhythmias. […] Electrolyte imbalance — substances in your blood called electrolytes, such as potassium, sodium, calcium and magnesium, trigger and conduct the electrical impulses in your heart. Electrolyte levels that are too high or too low can affect your heart’s electrical impulses and contribute to arrhythmia development.

• #1 Heart Arrhythmia > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/heart-arrhythmia

  While some arrhythmias are due to problems purely of the hearts electrical system, others can be caused by underlying heart problems, or made worse by poor health habits. […] More serious arrhythmias can be due to underlying heart disease, such as blockages in the arteries or heart attack, heart failure, or congenital heart defects. […] However, heart palpitations are very common. […] Sometimes, they are a sign of other medical conditions unrelated to the heart, including an overactive thyroid, anemia, low blood pressure, dehydration, hormonal changes, or low potassium levels. […] After the diagnosis is made and other related testing is performed, doctors determine which treatments to administer for each patient. […] Mild forms of heart arrhythmia can sometimes be treated by lifestyle changes.

• #1 Arrhythmia – Wikipedia

  https://en.wikipedia.org/wiki/Arrhythmia

  Arrhythmias are often categorized into four groups: extra beats, supraventricular tachycardias, ventricular arrhythmias and bradyarrhythmias. […] Arrhythmias are due to problems with the electrical conduction system of the heart. […] Causes of SADS in young people include viral myocarditis, long QT syndrome, Brugada syndrome, Catecholaminergic polymorphic ventricular tachycardia, hypertrophic cardiomyopathy and arrhythmogenic right ventricular dysplasia. […] Sudden cardiac death is the cause of about half of deaths due to cardiovascular disease and about 15% of all deaths globally. […] About 80% of sudden cardiac death is the result of ventricular arrhythmias.

• #1

  https://www.advocatehealth.com/health-services/advocate-heart-institute/conditions/inherited-heart-diseases/arrhythmias

  Arrhythmias (irregular heart rhythms) are often not a cause for concern. But hereditary arrhythmias are different. These heart rhythm issues run in families. They tend to be more severe and raise the risk of life-threatening complications, including heart attack and sudden cardiac arrest. […] Arrhythmias are a group of conditions that cause an abnormal heart rhythm. The heart may beat abnormally fast or slow due to problems with the hearts electrical system. In many cases, blood does not move through the heart efficiently, causing less blood to get pumped out to the body. […] Inherited arrhythmias occur due to gene mutations. Having a gene mutation responsible for inherited arrhythmias raises your risk of having one. But not everyone with the mutation experiences them. The best way to learn about your risk is through genetic testing.

• #1 Arrhythmia: Symptoms, Types, Causes, Treatment, Prevention

  https://www.healthline.com/health/arrhythmia

  Other common risk factors for arrhythmia can include: older age, certain medications, especially stimulants and antihistamines, some of which can be purchased over the counter, air pollution, family history of arrhythmia, caffeine, alcohol, smoking, street drugs, particularly cocaine or amphetamines. […] Scarring near the sinus node from heart disease or a heart attack may slow down or block the electrical impulses as they travel through the heart. This can cause arrhythmia and other cardiovascular disorders. […] If medication or other treatments arent enough to help your arrhythmia, you may need a minor procedure or surgery. Several procedures and implantable devices may help treat arrhythmia: Catheter ablation, Pacemaker, Implantable cardioverter defibrillator (ICD).

• #1 I experienced heart arrhythmia, and I still have some symptoms. Why?

  https://www.icliniq.com/qa/arrhythmias/why-do-i-experience-recurrent-heart-arrhythmias-despite-taking-medications

  Alcohol damages the heart and causes alcoholic cardiomyopathy, which weakens the heart and causes arrhythmia. […] One possible explanation might be that you have developed a dependence on alcohol, which temporarily calms your brain and induces relaxation. However, it is important to note that this effect is short-term, and in the long run, alcohol is known to be arrhythmogenic.

• #1 Heart arrhythmias and palpitations | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/heart-arrhythmias-and-palpitations

  An arrhythmia is an abnormal heart rhythm, where the heart beats irregularly, too fast or too slowly. […] Sometimes, your hearts electrical system may not work properly because of heart disease, some medicines, or sometimes for no known reason. Changes in your hearts electrical system can cause abnormal heart rhythms, also called arrhythmias. […] There are some conditions that can lead to an abnormal heart rhythm, including: a heart attack, congenital heart disease, coronary heart disease, diabetes, heart failure, high blood pressure, obstructive sleep apnoea, structural heart abnormalities such as from cardiomyopathy, heart valve disease or scarring from a previous heart attack, thyroid problems, excess alcohol intake. […] Other common triggers of an abnormal heart rhythm include: alcohol, caffeine, nicotine (either in cigarettes or e-cigarettes), other unrelated illness such as a cold or flu, recreational drugs, some medicines (over-the-counter or prescription), stress (physical or emotional), tiredness.

• #1 Arrhythmia: Symptoms, 4 Types, Treatment, Causes & Diagnosis

  https://www.emedicinehealth.com/heart_rhythm_disorders/article_em.htm

  Sometimes, conditions other than heart disease may cause or aggravate arrhythmias. These conditions include the following: Infection or fever, Physical or emotional stress, Diseases such as anemia or thyroid disease, Drugs and other stimulants, such as caffeine, tobacco, alcohol, cocaine, amphetamines, and certain over-the-counter and prescription medications, including medicine used to treat arrhythmias, Certain arrhythmias can be genetically determined such as Wolff-Parkinson-White (WPW) syndrome. […] Arrhythmias arising in the ventricle (ventricular arrhythmias) are more likely to be found in people with more serious heart disease but may also be found in healthy individuals. […] Bradyarrhythmias produce heart rates that are too slow to allow enough blood to be pumped during either time of demand (stress or increased activity) or even during normal activity. Bradyarrhythmias are usually slower than 60 beats per minute.

• #1 Understanding Arrhythmias and Heart Rhythm Disorders | Knight Cardiovascular Institute | OHSU

  https://www.ohsu.edu/knight-cardiovascular-institute/understanding-arrhythmias-and-heart-rhythm-disorders

  High blood pressure, diabetes, kidney disease, lung diseases, sleep apnea, thyroid conditions and more raise your risk for heart rhythm problems. […] Smoking, drinking lots of coffee or alcohol, and using cocaine or methamphetamines increase your risk. […] Arrhythmias are defined in two ways: Heartbeat problem, such as too fast (tachycardia) or too slow (bradycardia). […] Heart rhythm disorders include: Supraventricular (above the ventricles) tachycardia: Episodes when your heart suddenly beats much faster than normal. […] Atrial fibrillation (AFib): An irregular, sometimes very fast heartbeat that can lead to blood clots in the heart. […] Ventricular tachycardia: The heart beats too fast due to problems with electrical signals in the hearts lower chambers. […] Complete heart block: Electrical signals that should travel from your hearts upper chambers to the lower chambers are blocked. […] Various cardiomyopathies: Any disease that causes the walls of the heart chambers to stretch, thicken, or stiffen can cause heart rhythm problems.

• #1 Types of Ventricular Arrhythmias | NYU Langone Health

  https://nyulangone.org/conditions/ventricular-arrhythmias/types

• #1 Abnormal Heart Rhythms: Types, Causes, Diagnosis, Treatment

  https://www.healthline.com/health/abnormal-heart-rhythms

  An abnormal heart rhythm is when your heart beats too fast, too slow, or irregularly. Its also called an arrhythmia. […] If these are disrupted, damaged, or compromised, it can change your heart rate or rhythm. […] Several factors may cause an abnormal heart rhythm. These can include: […] High blood pressure means too much force is required to push the blood through your blood vessels. It creates more resistance to blood flow and can affect how your heart works. Over time, high blood pressure can lead to heart disease. […] Coronary heart disease is a serious heart problem that occurs when cholesterol and other deposits block your coronary arteries. […] Having a heart condition or an injury to your heart can lead you to develop an atypical heart rate. […] Some medications or substances may cause your heart rate to change.

• #1 Effective Causes & Treatment for Heart Arrhythmia – CVG Cares Cardiology – CVG

  https://cvgcares.com/conditions/causes-and-treatment-for-heart-arrhythmia/

  Youve probably heard your heart described as a steady drumbeat, keeping the rhythm of your life. But what happens when that rhythm goes off-beat? Thats called cardiac arrhythmia, and its more common than you might think. […] Cardiac arrhythmia is a term that covers a range of conditions where your heart beats irregularly. It might be too fast, too slow, or just erratic. While it sounds alarming, many arrhythmias are harmless. However, some can be serious, so understanding and monitoring your hearts rhythm is crucial. […] There are many different possible causes of arrhythmia, including: Abnormal heart structures: Certain abnormalities in the hearts structure, such as enlarged heart chambers or scar tissue from previous heart attacks, can lead to arrhythmia. Coronary artery disease: This condition occurs when the arteries that supply blood to the heart become narrowed or blocked, and it can cause arrhythmia. High blood pressure: Elevated blood pressure can strain the heart and lead to arrhythmia. Electrolyte imbalances: Abnormalities in the bodys electrolytes (such as potassium, magnesium, and calcium) can cause arrhythmia. Thyroid problems: An overactive or underactive thyroid gland can affect the hearts rhythm and lead to arrhythmia. Alcohol or drug abuse: Substance abuse can harm the heart and lead to arrhythmia. Sleep apnea: This condition causes repeated pauses in breathing during sleep and can increase the risk of arrhythmia. Stress or anxiety: Emotional stress can affect the hearts rhythm and contribute to arrhythmia.

• #1 What is a heart arrhythmia and what causes it? | HealthPartners Blog

  https://www.healthpartners.com/blog/heart-arrhythmia-causes-symptoms/

  Rapid or skipped heartbeats in the lower part of the heart tend to be the most serious arrhythmias, especially for people with heart conditions. […] There are many factors that affect your heart’s rhythm some relate to your overall health and others come from the choices you make. […] People with heart disease or a previous heart attack are more likely to have certain types of arrhythmias. […] When you’re sick, you may notice changes in your heart’s rhythm. […] A faster heartbeat and irregular heart rhythms are just a couple ways that smoking is bad for your heart. […] Drinking can also lead to dehydration and the loss of electrolytes that your body needs to work correctly. […] Irregular heartbeats can be caused by the overuse of prescription and over-the-counter medications used for asthma, colds and heart problems. […] Cocaine and methamphetamine stimulate the heart and can cause a variety of arrhythmias, including some that are fatal.

• #1 Heart arrhythmia – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/heart-arrhythmia/symptoms-causes/syc-20350668

  Things that may increase the risk of heart arrhythmias include: Coronary artery disease, other heart problems and previous heart surgery. Narrowed heart arteries, a heart attack, heart valve disease, prior heart surgery, heart failure, cardiomyopathy and other heart damage are risk factors for almost any kind of arrhythmia. High blood pressure. This condition increases the risk of developing coronary artery disease. It also may cause the walls of the left lower heart chamber to become stiff and thick, which can change how electrical signals travel through the heart. Heart problems present at birth. Also called congenital heart defects, some of these problems may affect the heart rate and rhythm. Thyroid disease. Having an overactive or underactive thyroid gland can raise the risk of irregular heartbeats. Obstructive sleep apnea. This condition causes pauses in breathing during sleep. It can lead to a slow heartbeat and irregular heartbeats, including atrial fibrillation. Electrolyte imbalance. Substances in the blood called electrolytes help trigger and send electrical signals in the heart. Potassium, sodium, calcium and magnesium are examples of electrolytes. If the body’s electrolytes are too low or too high, it may interfere with heart signaling and lead to irregular heartbeats. Some medicines and supplements. Some prescription medicines and certain cough and cold treatments can cause arrhythmias. Excessive alcohol use. Drinking too much alcohol can affect electrical signaling in the heart. This can increase the chance of developing atrial fibrillation. Caffeine, nicotine or illegal drug use. Stimulants can cause the heart to beat faster and may lead to the development of more-serious arrhythmias. Illegal drugs, such as amphetamines and cocaine, may greatly affect the heart. Some may cause sudden death due to ventricular fibrillation.

• #1 Life threatening arrhythmias: Risk factors, causes, and treatment

  https://www.medicalnewstoday.com/articles/life-threatening-arrhythmias

  Sick sinus syndrome happens when the SA node does not function normally. […] The genetic or environmental factors that can cause sick sinus syndrome include: mutations in particular genes, muscular dystrophy, abnormal inflammation, a shortage of oxygen, trauma to the SA node, medications, and age-related changes in the heart. […] Factors that can increase a persons chances of having an arrhythmia include a history of heart disease, becoming older, having a congenital heart defect, exposure to some chemical agents, smoking, and recreational drug use.

• #1 Arrhythmia: Types, Symptoms, Causes & Treatment

  https://resources.healthgrades.com/right-care/heart-health/arrhythmias

  Arrhythmia causes include: Genetic conditions, such as Wolff-Parkinson-White syndrome. WPW causes an abnormal nerve conduction pathway from the upper to lower chambers of the heart, triggering a rapid heartbeat. WPW is a rare condition present at birth. Other types of genetic defects can cause or increase the risk of developing arrhythmias. […] Lifestyle habits. Smoking, excessive exercise, and drinking too much caffeine can contribute to or trigger an arrhythmia. […] Medications and drugs, including stimulants, certain prescribed drugs, herbal drugs, diet drugs, and cocaine can cause an arrhythmia. […] Older age. Increasing age correlates with decreasing heart function, even in otherwise healthy individuals.

• #1 Understanding Arrhythmia: Causes, Symptoms, and Treatment Options

  https://www.webmd.com/heart-disease/atrial-fibrillation/heart-disease-abnormal-heart-rhythm

  Things that may make you more likely to have an arrhythmia include your: Age. The chances go up as you get older. Genes. Your odds might be higher if a close relative has had an arrhythmia. Some types of heart disease can also run in families. Lifestyle. Alcohol, tobacco, and recreational drugs can raise your risk. Medical conditions. High blood pressure, diabetes, low blood sugar, obesity, sleep apnea, anxiety, thyroid disorders, lung disease, and autoimmune disorders are among the conditions that may cause heart rhythm problems. Environment. Things in the world around you, like air pollution, can make an arrhythmia more likely. Heart disease. If you were born with a heart disease or have had other heart problems in the past, you’re more at risk for arrhythmias. Previous treatments for heart disease. You’re more likely to have arrhythmia if you’ve had surgeries or other treatments for heart disease in the past.

• #1 Arrhythmia | Heart rhythm problems – Heart Foundation NZ

  https://www.heartfoundation.org.nz/your-heart/heart-conditions/arrhythmia

  An arrhythmia is when your heart beats too fast, too slowly or in an uneven, irregular rhythm. […] Sometimes, however, your heart can beat in an abnormal rhythm or rate. This is an arrhythmia. […] There are lots of things that can cause an irregular heart rate or rhythm. These can include: damage to the heart as a result of other heart conditions. Heart conditions such as heart attack, cardiomyopathy, heart failure and high blood pressure can damage heart tissue, which leads to heart rhythm problems […] congenital heart conditions. Some arrhythmias are caused by heart conditions that you’re born with […] other medical conditions, such as hyperthyroidism and obstructive sleep apnoea […] ageing. As you get older your electrical pathways don’t always work so well […] medications. Certain over-the-counter medications and prescription medications can trigger arrhythmias in some people […] stimulants such as alcohol, tobacco, and some illegal drugs taken in large amounts over a long period of time can cause arrhythmias in some people […] being overweight.

• #1

  https://www.gleneagles.com.sg/conditions-diseases/heart-arrhythmias/symptoms-causes

  Other factors that contribute to heart arrhythmia include: […] Certain medications […] Electrolyte imbalance in the blood […] Injury to the heart or as part of recovery after heart surgery […] Problems with electrical signals in the heart. […] Heart arrhythmia can also occur in healthy hearts as a result of: […] Exercise […] Strong emotions or stress […] Consumption of alcohol, caffeine or tobacco.

• #1 Arrhythmias – Causes and Triggers | NHLBI, NIH

  https://www.nhlbi.nih.gov/health/arrhythmias/causes

  You may be more likely to have arrhythmias if you have heart and blood vessel diseases, such as cardiomyopathy, congenital heart defects, heart attack, and heart inflammation. […] You may be at a higher risk of developing arrhythmias in the early days and weeks after surgery involving your heart, lungs, or throat. […] If you have any risk factors, certain situations may trigger an arrhythmia. […] Triggers include blood sugar levels that are too low or too high, caffeine, illegal drugs, and medicines that make you more alert or increase your energy. […] If you have a high risk of arrhythmias, your doctor may ask you to take some steps to help prevent them.

• #1

  https://www.aurorahealthcare.org/services/heart-vascular/conditions/arrhythmia

  Ventricular arrhythmia can also be caused by: Abnormally low levels of electrolytes, such as sodium, calcium or potassium, Accidental electrical shocks, Coronary artery disease. […] If untreated, arrhythmia can create health problems over time, such as: Blood clots: An abnormal heart rhythm can prevent proper blood flow through the heart, causing blood to back up. Blood clots can form, which raises the risk of having a stroke. Heart failure: AFib can weaken the hearts chambers and result in heart failure and other conditions.

• #1 Heart Rhythm Disorders (Arrhythmias) Types, Triggers, Warning Signs, Treatment

  https://www.medicinenet.com/heart_rhythm_disorders/article.htm

  Slow dysrhythmias can also be problematic. If the heart beats too slowly, the body may not be able to maintain adequate blood pressure and supply the body’s organs with enough oxygen-rich blood to function. […] Slow heart rates may be due to the aging of the SA node and its inability to generate an electrical pacemaker signal. Often though, it is due to the side effects of medications used to control high blood pressure. […] The body environment is also important with slow heart rhythm abnormalities. Hypothermia, or low body temperature, is a potential cause.

• #1 Arrhythmias – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK558923/

  Arrhythmia entails a broad spectrum of disorders of heart rate and rhythm abnormalities. Arrhythmia is broadly categorized into bradyarrhythmias and tachyarrhythmia based on the heart rate. […] Patients with an arrhythmia may exhibit a broad spectrum of clinical presentation from being entirely asymptomatic to sudden cardiac arrest. […] The overall presence of arrhythmia is associated with higher morbidity and mortality. […] Tachyarrhythmia is defined as an abnormal rhythm with a ventricular heart rate of 100 beats per minute or more. […] Ventricular Tachycardia: Origin is below the AV node. It is the major cause of sudden cardiac deaths in the United States. […] Mechanism: Presence of damaged fibers in ischemic heart disease leading to re-entry of current leading to disorganized high-frequency excitation.

• #1 Other Heart Rhythm Disorders | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders

  Arrhythmias include many conditions such as bradycardias and tachycardias. […] Adams-Stokes Disease, also called Stokes-Adams disease, refers to a heart block or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. […] Atrial flutter occurs when rapidly firing electrical signals cause the muscles in the heart’s upper chambers (atria) to contract at a very rapid rate (250 to 350 times per minute). […] Atrial flutter is often associated with other conditions such as heart failure, previous heart attack, open-heart (bypass) surgery, heart valve surgery, valve abnormalities or congenital defects, high blood pressure, atrial fibrillation, thyroid dysfunction, alcoholism (especially binge drinking), chronic lung disease, diabetes, smoking, and previous stroke.

• #1 Heart Rhythm Disorders | UpBeat.org – powered by the Heart Rhythm Society

  https://upbeat.org/heart-rhythm-disorders

  Long QT syndrome is a rare genetic disorder that can cause a chaotic, fast heart rhythm. […] Extra, early, or „skipped” beats are the most common cause of irregular heart rhythms. […] Sick sinus syndrome is not a disease, but a group of signs or symptoms that show that the heart’s natural electrical pacemaker, the sinus node, is not working properly. […] Sudden Cardiac Arrest (SCA) occurs when the heart stops beating, abruptly and without warning. […] Sudden Cardiac Arrest (SCA) caused by ventricular fibrillation (VF) is the cause of half of all heart related deaths. […] Ventricular tachycardia is a rapid heart rhythm that occurs in the lower chambers or ventricles of the heart.

• #1 Heart Arrhythmias: Causes, Symptoms, and Treatments | Temple Health

  https://www.templehealth.org/about/blog/all-about-heart-arrhythmias

  People with AFib experience irregular heartbeats that affect how well the heart pumps blood. […] If left untreated, AFib only becomes harder and harder to treat, and it increases the risk of stroke. […] This arrhythmia is a fast arrhythmia from the lower chambers of the heart. […] Heart conditions like heart failure, a prior heart attack, and certain cardiomyopathies which reflect abnormal heart muscle and function are among the risk factors. […] This is another serious kind of arrhythmia and can lead to cardiac arrest and sudden death. […] VFib can be treated with an ICD which, just as in VT, provides a shock to correct the arrhythmia and save your life and sometimes with medications. […] Arrhythmias can affect your quality of life, and sometimes theyre evidence of another, underlying heart problem.

• #1 Cardiac Arrhythmias: Signs and Symptoms

  https://www.verywellhealth.com/cardiac-arrhythmias-signs-and-symptoms-4160572

  Cardiac arrhythmias can produce a range of symptoms from very mild, like lightheadedness, to life-threatening, including cardiac arrest. […] When a patient presents with classic symptoms, a healthcare provider should look specifically for a cardiac arrhythmia as the cause. […] While there could be another cause to blame, arrhythmia is likely. […] If a cardiac arrhythmia is preventing the heart from pumping blood sufficiently to provide the body’s needs, episodes of lightheadedness may result. […] But when syncope is caused by a cardiac arrhythmia, that’s a good sign that the arrhythmia itself is quite dangerous. […] A cardiac arrest occurs when the heart stops beating. Although there may be other causes for this, the main consideration is the function of the electrical activity of the heart and the heart’s rhythm.

• #1 Exploring Heart Rhythm Disorders | Insights into Arrhythmias

  https://www.hearthousenj.com/conditions/heart-rhythm-disorders

  Arrhythmias refer to abnormalities in the hearts natural electrical system that cause the heart to beat too quickly, too slowly, or irregularly. […] Arrhythmias occur when disruptions in the hearts electrical signaling pathway cause abnormal impulse conduction. This results in irregular, fast, or slow heartbeats. While occasional skipped beats are common and usually harmless, some arrhythmias can indicate underlying disease or be life-threatening if left untreated. […] Arrhythmias, or abnormal heart rhythms, are a growing public health concern. An estimated 2.7 million Americans are diagnosed with arrhythmias each year. […] Arrhythmias can indicate underlying cardiovascular disease. Certain types like ventricular tachycardia can be life-threatening if left untreated. […] Arrhythmias and heart rhythm disorders can significantly impact a person’s health and well-being. These conditions disrupt the heart’s normal electrical signals, leading to irregular heartbeats, which can affect the heart’s ability to pump blood effectively. […] In some cases, untreated arrhythmias can increase the risk of serious complications, including stroke, heart failure, and cardiac arrest.

• #1 Heart Arrhythmias: Causes, Symptoms, and Treatments | Temple Health

  https://www.templehealth.org/about/blog/all-about-heart-arrhythmias

  As a cardiac electrophysiologist a physician who deals with the electrical system that controls the hearts rhythm I work with a lot of patients who are experiencing irregular heartbeats, also called heart arrhythmias. […] Some kinds of heart arrhythmias are harmless. Others can be serious or potentially life-threatening if left untreated, as was the case with Danish soccer player Christian Eriksen, who suffered a cardiac arrest on the field during a match in the summer of 2021. […] A heart arrhythmia occurs when the heart beats too fast, too slow, or with an irregular rhythm. […] In some cases, people are born with heart defects that may show up as arrhythmias. […] Risk factors for arrhythmias depend on the type of arrhythmia but may include aging, having high blood pressure, being overweight, smoking, drinking too much alcohol, having other diseases or conditions that weaken the heart, or a family history of arrhythmia.

• #1 Arrhythmias

  https://healthlibrary.vidanthealth.com/Library/Wellness/TodaysMedicine/85,P00195

  An arrhythmia is an abnormal heart rhythm. […] An arrhythmia happens when there is a problem with the electrical system that is supposed to control a steady heartbeat. […] Many things can affect the electrical system of your heart and cause an arrhythmia. Substances such as caffeine, alcohol, tobacco, illegal drugs, diet medicines, some herbs, and even prescription medicines can trigger an arrhythmia. Health conditions such as coronary heart disease, high blood pressure, sleep apnea, and diabetes raise your risk for arrhythmias. […] Some arrhythmias have no complications. But arrhythmias that are more serious can cause heart failure, stroke, or even cardiac arrest and death. […] Many treatment options are available to treat arrhythmia, including medicines, devices, cardiac ablation, and surgery. Many arrhythmias can be controlled with procedures.

• #1 Arrhythmia (abnormal heart rhythm) | nidirect

  https://www.nidirect.gov.uk/conditions/arrhythmia-abnormal-heart-rhythm

  Treatment aims to prevent future episodes. You can also make lifestyle changes, so you avoid some of the triggers for your heart rhythm problem. […] How your arrhythmia will be treated will depend on whether it is a fast or slow arrhythmia or heart block. […] Any underlying causes of your arrhythmia, such as heart failure, will need to be treated as well.

• #2 Arrhythmias – Causes and Triggers | NHLBI, NIH

  https://www.nhlbi.nih.gov/health/arrhythmias/causes

  Arrhythmias are often caused by a problem with the electrical signals within the heart. Often, an arrhythmia is set off by a trigger. Sometimes the cause of an arrhythmia is not known. […] Conditions that cause a slowing of your hearts electrical signals are called conduction disorders. […] As we age, changes in our heart such as scarring and the effects of other chronic conditions can raise the risk of arrhythmias. Older adults are also more likely to have health conditions, such as high blood pressure, heart failure, diabetes, and thyroid disease, that can lead to arrhythmias. […] Arrhythmias can run in families. You may have an increased risk of some types of arrhythmias if a parent or other close relative has an arrhythmia. […] Sometimes, medicines your doctor prescribes for other health conditions can cause an arrhythmia.

• #2 Arrhythmia: Types, causes, symptoms, and treatment

  https://www.medicalnewstoday.com/articles/8887

  An arrhythmia is an irregular heartbeat that may feel like a racing or fluttering heart. […] Arrhythmias sometimes called dysrhythmias occur when the electrical signals that coordinate heartbeats are not working correctly. […] If they are highly irregular or result from a weak or damaged heart, arrhythmias can cause severe and potentially fatal symptoms and complications. […] There are several types of arrhythmia. […] AFib is the irregular beating of the atrial chambers and nearly always involves tachycardia. […] A possible cause of VT is scarring from a previous heart attack. […] Ventricular fibrillation (VFib) is an irregular heart rhythm consisting of rapid, uncoordinated, and fluttering contractions of the ventricles. […] Bradycardia is when the heart rhythm is slower than usual, below 60 beats per minute (bpm) for most people.

• #2 Arrhythmia Causes | Stanford Health Care

  https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/causes.html

  Arrhythmia describes a group of conditions that affect the hearts natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern. […] Causes of Arrhythmia: Arrhythmias occur because of problems with the electrical signals that control heartbeat, including: Delayed or blocked electrical signals, Nerve cells where signals begin that do not work correctly, Electrical signals that travel erratically through the heart, Electrical signals that begin in an area of the heart other than the atria (upper heart chambers). […] Causes and risk factors of arrhythmia include: Changes to your hearts structure, caused by conditions such as amyloidosis, cardiomyopathy, and sarcoidosis, Conditions including diabetes, high blood pressure, sleep apnea, and thyroid disease, Congenital heart disease (heart birth defects), Coronary artery disease (blockage of heart arteries), Heart attack, one that is presently occurring or scarring from a previous attack, Heart failure, Overuse or abuse of alcohol, caffeine, and certain drugs, Previous treatment for cancer, including certain chemotherapy drugs and types of radiation treatment, Smoking, Stress from lifestyle issues or illnesses such as pneumonia, Use of certain prescription or over-the-counter medications.

• #2 Atrial fibrillation

  https://www.nhs.uk/conditions/atrial-fibrillation/

  Atrial fibrillation is caused by a problem with the electrical system that makes your heart beat. […] Atrial fibrillation can also be caused by another condition such as high blood pressure, heart conditions like heart failure, mitral valve problems or Wolff-Parkinson-White syndrome, a heart attack, chronic kidney disease, an overactive thyroid (hyperthyroidism), diabetes, sleep apnoea.

• #2 Overview of Abnormal Heart Rhythms – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/abnormal-heart-rhythms/overview-of-abnormal-heart-rhythms

  Abnormal heart rhythms (arrhythmias) are sequences of heartbeats that are irregular, too fast, too slow, or conducted via an abnormal electrical pathway through the heart. […] A heart disorder is the most common cause of an abnormal heart rhythm. […] The most common cause of an abnormal heart rhythm (arrhythmia) is a heart disorder, particularly coronary artery disease, heart valve disorders, and heart failure. Many medications, prescription or nonprescription, including those used to treat heart disorders, can lead to arrhythmias. Some arrhythmias are caused by anatomic abnormalities present at birth (congenital birth defects). Age-related changes in the hearts electrical system make some arrhythmias more likely. […] Sometimes no cause for an arrhythmia can be identified. […] Fast arrhythmias (tachyarrhythmias) may start on their own or be triggered by exercise, emotional stress, excessive alcohol consumption, smoking, or use of medications or drugs that contain stimulants, including cold and hay fever remedies.

• #2 Heart Arrhythmias: Symptoms & Causes | NewYork-Presbyterian

  https://www.nyp.org/heart/arrhythmias

  A heart arrhythmia is an irregular heartbeat. Arrhythmias occur when the electrical signals in the heart are abnormal, causing the heart to beat too quickly or slowly or have an irregular rhythm. Certain medications and lifestyle choices can put someone at a higher risk of developing arrhythmias. […] Arrhythmias, or irregular heartbeats, are caused when the electrical signals that regulate the rhythm of your heartbeat are created abnormally or do not transmit properly. This can be caused by a variety of factors, including: Heart attack, Damage or scarring from previous heart attacks, Coronary artery disease, Cardiomyopathy, Changes to the heart’s structure, High blood pressure, Valve disorders, Electrolyte imbalance, Hyperthyroidism (overactive thyroid gland), Hypothyroidism (underactive thyroid gland), Healing and recovery from previous heart surgery, Sleep apnea, Genetic conditions, Consumption of too much alcohol or caffeine, Diabetes, Infection with COVID-19, Drug abuse, Smoking, Anxiety or stress.

• #2 What is a heart arrhythmia and what causes it? | HealthPartners Blog

  https://www.healthpartners.com/blog/heart-arrhythmia-causes-symptoms/

  Rapid or skipped heartbeats in the lower part of the heart tend to be the most serious arrhythmias, especially for people with heart conditions. […] There are many factors that affect your heart’s rhythm some relate to your overall health and others come from the choices you make. […] People with heart disease or a previous heart attack are more likely to have certain types of arrhythmias. […] When you’re sick, you may notice changes in your heart’s rhythm. […] A faster heartbeat and irregular heart rhythms are just a couple ways that smoking is bad for your heart. […] Drinking can also lead to dehydration and the loss of electrolytes that your body needs to work correctly. […] Irregular heartbeats can be caused by the overuse of prescription and over-the-counter medications used for asthma, colds and heart problems. […] Cocaine and methamphetamine stimulate the heart and can cause a variety of arrhythmias, including some that are fatal.

• #2 Heart Arrhythmias: Causes, Symptoms, and Treatments | Temple Health

  https://www.templehealth.org/about/blog/all-about-heart-arrhythmias

  People with AFib experience irregular heartbeats that affect how well the heart pumps blood. […] If left untreated, AFib only becomes harder and harder to treat, and it increases the risk of stroke. […] This arrhythmia is a fast arrhythmia from the lower chambers of the heart. […] Heart conditions like heart failure, a prior heart attack, and certain cardiomyopathies which reflect abnormal heart muscle and function are among the risk factors. […] This is another serious kind of arrhythmia and can lead to cardiac arrest and sudden death. […] VFib can be treated with an ICD which, just as in VT, provides a shock to correct the arrhythmia and save your life and sometimes with medications. […] Arrhythmias can affect your quality of life, and sometimes theyre evidence of another, underlying heart problem.

• #2

  https://www.gleneagles.com.sg/conditions-diseases/heart-arrhythmias/symptoms-causes

  Heart arrhythmia is a condition where the heart beats too fast, too slow or irregularly. […] A heart arrhythmia occurs when the electrical impulses are not coordinated. This causes the heart to beat too fast, too slow or irregularly. […] Heart arrhythmia is commonly associated with heart-related conditions such as: […] Congenital heart disease or any heart abnormality that may affect your heart’s rhythm. […] Coronary artery disease, where the arteries supplying blood to the heart are narrowed or obstructed. […] High blood pressure, in which the force exerted on artery walls in the process of pumping blood is higher than normal. […] Heart valve diseases in which one or more of the hearts valves are damaged and unable to function normally. […] Heart failure, in which the heart is unable to pump a sufficient supply of blood to the bodys tissues.

• #2 Arrhythmia Heart Treatment, Osseo – Mayo Clinic Health System

  https://www.mayoclinichealthsystem.org/locations/osseo/services-and-treatments/cardiology/diseases/arrhythmia

  Congenital heart disease — being born with a heart abnormality may affect your heart’s rhythm. […] Thyroid problems — having an overactive or underactive thyroid gland can raise your risk of arrhythmias. […] Diabetes — your risk of developing coronary artery disease and high blood pressure greatly increases with uncontrolled diabetes. […] Obstructive sleep apnea — this disorder, where your breathing is interrupted during sleep, can increase your risk of bradycardia, atrial fibrillation and other arrhythmias. […] Electrolyte imbalance — substances in your blood called electrolytes, such as potassium, sodium, calcium and magnesium, trigger and conduct the electrical impulses in your heart. Electrolyte levels that are too high or too low can affect your heart’s electrical impulses and contribute to arrhythmia development.

• #2 Arrhythmias – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK558923/

  Arrhythmia entails a broad spectrum of disorders of heart rate and rhythm abnormalities. Arrhythmia is broadly categorized into bradyarrhythmias and tachyarrhythmia based on the heart rate. […] Patients with an arrhythmia may exhibit a broad spectrum of clinical presentation from being entirely asymptomatic to sudden cardiac arrest. […] The overall presence of arrhythmia is associated with higher morbidity and mortality. […] Tachyarrhythmia is defined as an abnormal rhythm with a ventricular heart rate of 100 beats per minute or more. […] Ventricular Tachycardia: Origin is below the AV node. It is the major cause of sudden cardiac deaths in the United States. […] Mechanism: Presence of damaged fibers in ischemic heart disease leading to re-entry of current leading to disorganized high-frequency excitation.

• #2 Heart Arrhythmia > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/heart-arrhythmia

  While some arrhythmias are due to problems purely of the hearts electrical system, others can be caused by underlying heart problems, or made worse by poor health habits. […] More serious arrhythmias can be due to underlying heart disease, such as blockages in the arteries or heart attack, heart failure, or congenital heart defects. […] However, heart palpitations are very common. […] Sometimes, they are a sign of other medical conditions unrelated to the heart, including an overactive thyroid, anemia, low blood pressure, dehydration, hormonal changes, or low potassium levels. […] After the diagnosis is made and other related testing is performed, doctors determine which treatments to administer for each patient. […] Mild forms of heart arrhythmia can sometimes be treated by lifestyle changes.

• #2 Arrhythmia Heart Treatment, Osseo – Mayo Clinic Health System

  https://www.mayoclinichealthsystem.org/locations/osseo/services-and-treatments/cardiology/diseases/arrhythmia

  Heart rhythm problems, or heart arrhythmias, occur when the electrical impulses that coordinate your heartbeats don’t work properly, causing your heart to beat too fast, too slow or irregularly. […] Heart arrhythmias may feel like a fluttering or racing heart, and they may be harmless. However, some heart arrhythmias can cause bothersome — sometimes even life-threatening — signs and symptoms. […] Certain conditions can increase your risk of developing an arrhythmia, including: […] Coronary artery disease, other heart problems and previous heart surgery — narrowed heart arteries, a heart attack, abnormal heart valves, prior heart surgery, heart failure and other heart damage are risk factors for almost any kind of arrhythmia. […] High blood pressure — this increases your risk of developing coronary artery disease. It may also cause the walls of your left ventricle to become stiff and thick, which can change how electrical impulses travel through your heart.

• #2 Understanding Arrhythmia: Causes, Symptoms, and Treatment Options

  https://www.webmd.com/heart-disease/atrial-fibrillation/heart-disease-abnormal-heart-rhythm

  An arrhythmia (pronounced as uh-RITH-me-uh) is an irregular heartbeat. This means your heart is out of its usual rhythm. About 1.5%-5% of people have arrhythmias. […] You could have an arrhythmia even if your heart is healthy. The following could be irregular heartbeat causes: Heart disease, The wrong balance of electrolytes (such as sodium or potassium) in your blood, Heart injury or changes such as reduced blood flow or stiff heart tissue, The healing process after heart surgery, Infection or fever, Certain medications, including antidepressants, decongestants, and high blood pressure medications, Problems with electrical signals in your heart, Strong emotions, stress, or surprise, Things in your daily life such as alcohol, tobacco, caffeine, or exercise, Diabetes, High blood pressure, COVID-19 infection, Sleep apnea, Problems with your thyroid gland, Anxiety, Cardiomyopathy, Changes in hormone levels.

• #2 Arrhythmias Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/arrhythmias

  An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly. […] Arrhythmias are caused by problems with the heart’s electrical conduction system. […] Some common causes of abnormal heartbeats are: Abnormal levels of potassium, magnesium, or other substances in the body; Heart attack, or a damaged heart muscle from a past heart attack; Heart disease that is present at birth (congenital); Heart failure or an enlarged heart; Overactive thyroid gland. […] Arrhythmias may also be caused by some substances or drugs, including: Alcohol or stimulant drugs; Certain medicines; Cigarette smoking (nicotine).

• #2

  https://www.advocatehealth.com/health-services/advocate-heart-institute/conditions/inherited-heart-diseases/arrhythmias

  Arrhythmias (irregular heart rhythms) are often not a cause for concern. But hereditary arrhythmias are different. These heart rhythm issues run in families. They tend to be more severe and raise the risk of life-threatening complications, including heart attack and sudden cardiac arrest. […] Arrhythmias are a group of conditions that cause an abnormal heart rhythm. The heart may beat abnormally fast or slow due to problems with the hearts electrical system. In many cases, blood does not move through the heart efficiently, causing less blood to get pumped out to the body. […] Inherited arrhythmias occur due to gene mutations. Having a gene mutation responsible for inherited arrhythmias raises your risk of having one. But not everyone with the mutation experiences them. The best way to learn about your risk is through genetic testing.

• #2 Arrhythmia – Wikipedia

  https://en.wikipedia.org/wiki/Arrhythmia

  Arrhythmias are often categorized into four groups: extra beats, supraventricular tachycardias, ventricular arrhythmias and bradyarrhythmias. […] Arrhythmias are due to problems with the electrical conduction system of the heart. […] Causes of SADS in young people include viral myocarditis, long QT syndrome, Brugada syndrome, Catecholaminergic polymorphic ventricular tachycardia, hypertrophic cardiomyopathy and arrhythmogenic right ventricular dysplasia. […] Sudden cardiac death is the cause of about half of deaths due to cardiovascular disease and about 15% of all deaths globally. […] About 80% of sudden cardiac death is the result of ventricular arrhythmias.

• #2 Arrhythmias – Abnormal heart rhythms – BHF

  https://www.bhf.org.uk/informationsupport/conditions/arrhythmias

  An arrhythmia is an abnormal heart rhythm. Your heart is controlled by a conduction system which sends out electrical impulses. This causes a heartbeat. […] Arrhythmias are caused by a problem in this conduction system, which can make your heart beat too slowly, too quickly, or in an irregular way. […] Some underlying conditions which could cause an arrhythmia are: a heart attack, heart failure, cardiomyopathy, coronary heart disease. […] Some abnormal heart rhythms can be caused by inherited conditions, such as Long QT syndrome, Brugada syndrome, CPVT and PCCD. […] Other common triggers of an arrhythmia include: viral illnesses, recreational drugs, alcohol, smoking, caffeine, medications (over-the-counter and prescribed).

• #2 Arrhythmia: Symptoms, Types, Causes, Treatment, Prevention

  https://www.healthline.com/health/arrhythmia

  Other common risk factors for arrhythmia can include: older age, certain medications, especially stimulants and antihistamines, some of which can be purchased over the counter, air pollution, family history of arrhythmia, caffeine, alcohol, smoking, street drugs, particularly cocaine or amphetamines. […] Scarring near the sinus node from heart disease or a heart attack may slow down or block the electrical impulses as they travel through the heart. This can cause arrhythmia and other cardiovascular disorders. […] If medication or other treatments arent enough to help your arrhythmia, you may need a minor procedure or surgery. Several procedures and implantable devices may help treat arrhythmia: Catheter ablation, Pacemaker, Implantable cardioverter defibrillator (ICD).

• #2 Types of Ventricular Arrhythmias | NYU Langone Health

  https://nyulangone.org/conditions/ventricular-arrhythmias/types

• #2 Heart Arrhythmia Causes | Cause Of Irregular Heartbeat

  https://www.afibamerica.com/arrhythmia-treatment/arrhythmia-causes/

  In some cases, other parts of the heart muscle will start to produce electrical signals. […] When this occurs, these random signals add to the normal signals and disrupt the heartbeat. […] Scar tissue can develop over the site where the electrical signals are produced which interrupts the signals and, should the scarring become extensive, block the signals entirely. […] Heavy use of alcohol, smoking, some illegal drugs, certain prescription medications, some over-the-counter drugs, or excessive caffeine can lead to arrhythmias in people with normal hearts. […] High levels of emotional stress, elevated blood pressures, or prolonged anger releases stress hormones that can sometimes lead to arrhythmias. […] If the hearts electrical system is damaged as a result of a heart attack, prolonged high blood pressure, coronary heart disease, hypothyroidism, heart failure, or rheumatic fever the damage can result in arrhythmias. […] Often arrhythmias have no known cause or are a result of congenital heart defects.

• #2 What Is Arrhythmia? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/arrhythmia/guide/

  An arrhythmia is an abnormal heart rhythm or heartbeat. It may feel like a fluttering or racing of the heart. […] Arrhythmias happen when the electrical signals that control your heartbeat don’t work properly. […] This can happen if the specialized heart cells that send the electrical signals are damaged or if the electrical signals don’t travel properly through the heart. […] A normal heartbeat can also be disrupted if the heart produces too many electrical signals. […] Sometimes the cause of an arrhythmia is unknown. […] Arrhythmias are common in older adults, who are more likely to have heart disease, high blood pressure, and other health conditions that can cause arrhythmias. […] Some medications can also cause arrhythmias as a side effect, including tricyclic antidepressants (TCAs), antihistamines, and beta-blockers.

• #2 Understanding Arrhythmia: Causes, Symptoms, and Treatment Options

  https://www.webmd.com/heart-disease/atrial-fibrillation/heart-disease-abnormal-heart-rhythm

  Things that may make you more likely to have an arrhythmia include your: Age. The chances go up as you get older. Genes. Your odds might be higher if a close relative has had an arrhythmia. Some types of heart disease can also run in families. Lifestyle. Alcohol, tobacco, and recreational drugs can raise your risk. Medical conditions. High blood pressure, diabetes, low blood sugar, obesity, sleep apnea, anxiety, thyroid disorders, lung disease, and autoimmune disorders are among the conditions that may cause heart rhythm problems. Environment. Things in the world around you, like air pollution, can make an arrhythmia more likely. Heart disease. If you were born with a heart disease or have had other heart problems in the past, you’re more at risk for arrhythmias. Previous treatments for heart disease. You’re more likely to have arrhythmia if you’ve had surgeries or other treatments for heart disease in the past.

• #2 Arrhythmia – Shore Cardiology Consultants

  https://www.shorecardiology.com/conditions/arrhythmia

  The chance of developing an arrhythmia can be increased by certain conditions, including a high-fat diet, aging, genetics, smoking, high cholesterol, chemical imbalances of potassium, magnesium or calcium and obesity. […] There are some heart conditions, like high blood pressure, scarring, congenital conditions, and abnormal deposits of tissue that are risk factors for an arrhythmia. […] Arrhythmias are linked to an increased chance of blood clots. A clot can travel from the heart to the brain, where it blocks blood flow, causing a stroke. […] Another possible complication of an arrhythmia is heart failure. If the heart pumps ineffectively for a long time, because of an arrhythmia, heart failure can be the result.

• #2 Arrhythmias in Children | Cedars-Sinai

  https://www.cedars-sinai.org/health-library/diseases-and-conditions—pediatrics/a/arrhythmias-in-children.html

  An arrhythmia is an abnormal heart rhythm. […] The cause of an arrhythmia may be unknown. Some known causes in children include: Heart problem that is present at birth (congenital) […] Heart problem that is inherited […] Infection […] Abnormal levels of certain chemicals in the blood […] Normal reaction to exercise, fever, or emotions […] Changes in the structure of the heart […] Electrical conduction abnormality […] As a result of heart surgery.

• #2 Arrhythmias – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK558923/

  Risk Factors: Structural heart disease and post-myocardial infarction. […] Bradyarrhythmia is defined as a heart rate below 60 beats per minute (bpm) and comprises several rhythm disorders, including atrioventricular (A-V) blocks and sinus node disorders. […] Atrioventricular Blocks: Mechanism: Atrial impulses are conducted with a delay or not at all when an electrical impulse reaches a tissue that not excitable or is in a refractory period. […] Sinus Node Dysfunction: Mechanism: Senescence of the SA node, an ischemic event involving the SA node leading to impulse generation at a slower rate. […] Hypertrophic Obstructive Cardiomyopathy: Mechanism: Subaortic outflow tract obstruction from abnormal hypertrophy of the septal region of the heart, leading to precipitation of ventricular arrhythmias.

• #2 Other Heart Rhythm Disorders | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders

  Arrhythmias include many conditions such as bradycardias and tachycardias. […] Adams-Stokes Disease, also called Stokes-Adams disease, refers to a heart block or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. […] Atrial flutter occurs when rapidly firing electrical signals cause the muscles in the heart’s upper chambers (atria) to contract at a very rapid rate (250 to 350 times per minute). […] Atrial flutter is often associated with other conditions such as heart failure, previous heart attack, open-heart (bypass) surgery, heart valve surgery, valve abnormalities or congenital defects, high blood pressure, atrial fibrillation, thyroid dysfunction, alcoholism (especially binge drinking), chronic lung disease, diabetes, smoking, and previous stroke.

• #2 Life threatening arrhythmias: Risk factors, causes, and treatment

  https://www.medicalnewstoday.com/articles/life-threatening-arrhythmias

  Some types of arrhythmia can cause a person to have a sudden cardiac arrest (SCA), which can be life threatening. […] Ventricular fibrillation (V-fib) is the most serious arrhythmia and is a life threatening medical emergency. […] A number of factors can cause V-fib, including: poor blood flow to the heart muscle, damaged heart muscle, cardiomyopathy, issues with the aorta, toxicity from drugs, and sepsis. […] There are a number of factors that can cause ventricular tachycardia. These include: lack of blood flow to the heart, depriving the heart tissues of oxygen, cardiomyopathy that distorts the structure of the heart, illicit drug use, medication side effects, and sarcoidosis. […] High-grade atrioventricular heart block (HAVB) is the most serious type of heart block. […] HAVB has a number of possible causes, including: congenital heart disease, coronary heart disease, thickened heart muscle, certain medicines, heart attack, cardiomyopathy, some lung conditions, infections such as Lyme disease, heart procedures such as ablation or surgery, electrolyte problems, and aging of the hearts electrical pathways.

• #2 Other Heart Rhythm Disorders | American Heart Association

  https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders

  When the sinus node (also called the sinoatrial or SA node) doesn’t produce its electrical signals properly, the heart rate slows down, pauses or speeds up. This is referred to as sick sinus syndrome. […] In this disorder, the electrical pathways between the heart’s upper (atria) and lower (ventricles) chambers malfunction. This allows electrical signals to reach the ventricles too early. […] Your treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are.

• #2 4 Serious Heart Rhythm Disorders and How They’re Treated: Cardiovascular Institute of America: Cardiovascular Disease Specialists

  https://www.cardiologytampa.com/blog/4-serious-heart-rhythm-disorders-and-how-theyre-treated

  Sick sinus syndrome is a disorder that affects the heart’s natural pacemaker, the sinus node. In this condition, the heart’s electrical signals slow down or stop altogether, leading to heart rate fluctuations. Patients with sick sinus syndrome may experience periods of rapid heartbeats followed by slow heartbeats, causing fatigue, dizziness, and even fainting spells. […] Common approaches include medications to regulate heart rate and rhythm, electrical cardioversion to restore normal heart rhythm, catheter ablation to target and eliminate problematic electrical pathways, and the use of implantable devices such as pacemakers and implantable cardioverter defibrillators (ICDs) for long-term management and prevention of life-threatening arrhythmias.

• #2 Cardiac Arrhythmias: Signs and Symptoms

  https://www.verywellhealth.com/cardiac-arrhythmias-signs-and-symptoms-4160572

  Cardiac arrhythmias can produce a range of symptoms from very mild, like lightheadedness, to life-threatening, including cardiac arrest. […] When a patient presents with classic symptoms, a healthcare provider should look specifically for a cardiac arrhythmia as the cause. […] While there could be another cause to blame, arrhythmia is likely. […] If a cardiac arrhythmia is preventing the heart from pumping blood sufficiently to provide the body’s needs, episodes of lightheadedness may result. […] But when syncope is caused by a cardiac arrhythmia, that’s a good sign that the arrhythmia itself is quite dangerous. […] A cardiac arrest occurs when the heart stops beating. Although there may be other causes for this, the main consideration is the function of the electrical activity of the heart and the heart’s rhythm.

• #2

  https://www.aurorahealthcare.org/services/heart-vascular/conditions/arrhythmia

  Ventricular arrhythmia can also be caused by: Abnormally low levels of electrolytes, such as sodium, calcium or potassium, Accidental electrical shocks, Coronary artery disease. […] If untreated, arrhythmia can create health problems over time, such as: Blood clots: An abnormal heart rhythm can prevent proper blood flow through the heart, causing blood to back up. Blood clots can form, which raises the risk of having a stroke. Heart failure: AFib can weaken the hearts chambers and result in heart failure and other conditions.

• #2 Irregular heartbeat: symptoms and causes • Heart Research Institute

  https://www.hri.org.au/health/learn/cardiovascular-disease/irregular-heartbeat-symptoms-and-causes

  Having an irregular heartbeat can be a symptom of a more serious underlying disorder. […] Irregular heartbeat can lead to further health complications. […] Having prolonged irregular heartbeat can result in heart failure. […] The risk of irregular heartbeat is increased by the following factors: Heart disease, High blood pressure, Other chronic health conditions, Stimulant use.

• #2 Life threatening arrhythmias: Risk factors, causes, and treatment

  https://www.medicalnewstoday.com/articles/life-threatening-arrhythmias

  Arrhythmia is the term used to describe an irregular or abnormal heartbeat. A person with an arrhythmia might have a heart that beats too fast, too slowly, or irregularly. […] Arrhythmia is a condition that causes the heart to beat abnormally or irregularly. Arrhythmia can cause a persons heart to beat too fast, too slowly, or with an irregular rhythm. […] If people do not receive treatment for arrhythmia, it can lead to life-threatening complications, such as heart failure, stroke, or cardiac arrest. The heart may not be able to pump blood around the body properly, which can damage organs, such as the brain and heart. […] Arrhythmias happen when there are changes in heart tissue or in the electrical impulses that control the heartbeat. Multiple factors can cause these changes, such as damage from disease, toxins, stress, injury, or a persons genetics.

• #2 Cardiac Arrhythmias: Signs and Symptoms

  https://www.verywellhealth.com/cardiac-arrhythmias-signs-and-symptoms-4160572

  While many cardiac arrhythmias are fairly common and usually benign, others are dangerous and need to be treated. This means it is important for your healthcare provider to identify whether an arrhythmia is producing your symptoms, and if so, which specific arrhythmia is causing the problem and how aggressive it should be treated.

• #2 Overview of Abnormal Heart Rhythms – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/abnormal-heart-rhythms/overview-of-abnormal-heart-rhythms

  An overactive thyroid gland (hyperthyroidism), producing high levels of thyroid hormone, may cause fast arrhythmias. […] Slow arrhythmias (bradyarrhythmias) may be triggered by pain, hunger, fatigue, digestive disorders (such as diarrhea and vomiting), or swallowing, which can stimulate the vagus nerve excessively. […] An underactive thyroid gland (hypothyroidism), producing low levels of thyroid hormone, may cause slow arrhythmias.

• #2 Arrhythmia: Symptoms, Types, Causes, Treatment, Prevention

  https://www.healthline.com/health/arrhythmia

  An arrhythmia is a disorder of the heart that affects the rate or rhythm at which the heart beats; basically the way the electricity works. […] It happens when electrical impulses that direct and regulate heartbeats dont function properly. This causes the heart to beat: too fast (tachycardia), too slow (bradycardia), too early (premature contraction), too erratically (fibrillation). […] Arrhythmias can have medical, physical, emotional, or genetic causes. The cause may also be unknown. […] Conditions that cause a slow heart rate can include: heart block, sick sinus syndrome. […] Changes in blood flow or physical alterations to the heart, such as scarring, can also cause arrhythmia. Other medical conditions may also be the source. They can include: high blood pressure, dehydration, thyroid disorder, sleep apnea, diabetes, electrolyte imbalance, such as from low levels of calcium, potassium, or magnesium, anemia.

• #2 Overview of Arrhythmias – Cardiovascular Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/cardiovascular-disorders/overview-of-arrhythmias-and-conduction-disorders/overview-of-arrhythmias

  Bradyarrhythmias result from decreased intrinsic pacemaker function or blocks in conduction, principally within the AV node or the His-Purkinje system. […] Most tachyarrhythmias are caused by reentry; some result from enhanced normal automaticity or from abnormal mechanisms of automaticity. […] Under certain conditions, typically precipitated by a premature beat, reentry can cause continuous circulation of an activation wavefront, causing a tachyarrhythmia. […] However, 3 conditions favor reentry: Shortening of tissue refractoriness (eg, by sympathetic stimulation), Lengthening of the conduction pathway (eg, by hypertrophy or abnormal conduction pathways), Slowing of impulse conduction (eg, by ischemia). […] Treatment is directed at causes. If necessary, direct antiarrhythmic therapy is used. Direct antiarrhythmic therapy includes, either alone or in combination: Antiarrhythmic medications, Cardioversion-defibrillation, Implantable cardioverter-defibrillators (ICDs), Pacemakers (and a special form of pacing, cardiac resynchronization therapy), Catheter ablation, Surgery.

• #2 Explaining arrhythmia: What is an arrhythmia, how to treat arrhythmia and more – UChicago Medicine

  https://www.uchicagomedicine.org/forefront/heart-and-vascular-articles/2022/august/answering-your-questions-about-arrhythmia

  Heart arrhythmias occur when the heart beats too quickly, too slowly or irregularly. […] Heart arrhythmias are caused by electrical problems. […] Arrhythmias can be caused by pre-existing conditions like coronary artery disease, diabetes, sleep apnea, heart failure or high blood pressure. […] Arrhythmias are also associated with the natural aging of the heart and its electrical system. […] There are many different causes, so that’s why its important to get an accurate diagnosis by seeing a heart rhythm specialist. […] An irregular heartbeat can be a symptom of an underlying problem like heart disease. […] Theres also greater recognition now that an arrhythmia, if untreated and long-lasting, can itself lead to heart failure. […] Fast heart rhythms and heart rates can actually create heart failure.

• #3 Heart arrhythmias | healthdirect

  https://www.healthdirect.gov.au/heart-arrhythmias

  Heart arrhythmia is when your heart beats abnormally either too fast, too slow or irregularly. […] Heart arrhythmias can be caused by a conditions that affect the heart or from excessive alcohol, smoking or drug use. […] Heart problems that can cause heart arrhythmias include: coronary heart disease, abnormal heart valves, cardiomyopathy, high blood pressure. […] Other health conditions that can cause heart arrhythmias include: thyroid problems, obstructive sleep apnoea, some medicines, genetic conditions Brugada syndrome, Long QT syndrome and Wolff-Parkinson-White syndrome, living with overweight or obesity. […] Lifestyle factors that can increase your risk of developing a heart arrhythmia include: smoking, heavy alcohol use, drug use.

• #3 What is a heart arrhythmia and what causes it? | HealthPartners Blog

  https://www.healthpartners.com/blog/heart-arrhythmia-causes-symptoms/

  Rapid or skipped heartbeats in the lower part of the heart tend to be the most serious arrhythmias, especially for people with heart conditions. […] There are many factors that affect your heart’s rhythm some relate to your overall health and others come from the choices you make. […] People with heart disease or a previous heart attack are more likely to have certain types of arrhythmias. […] When you’re sick, you may notice changes in your heart’s rhythm. […] A faster heartbeat and irregular heart rhythms are just a couple ways that smoking is bad for your heart. […] Drinking can also lead to dehydration and the loss of electrolytes that your body needs to work correctly. […] Irregular heartbeats can be caused by the overuse of prescription and over-the-counter medications used for asthma, colds and heart problems. […] Cocaine and methamphetamine stimulate the heart and can cause a variety of arrhythmias, including some that are fatal.

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