🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 11 (from laksa136)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa011.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders","crawl_time":1775824793,"first_indexed_time":1533135943,"http_code":200,"src_unparsed":"org,heart!www,\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders s443","src_root_hash":"6217059405564628611","history_drop_reason":null,"meta_title":"Other Heart Rhythm Disorders | American Heart Association","meta_descriptions":["The American Heart Association explains rhythm disorders such as Adams-Stokes disease, atrial flutter, sick sinus syndrome and Wolf-Parkinson-White Syndrome."],"attrs_boilerpipe_text":"Arrhythmias include many conditions such as\nbradycardias\n and\ntachycardias\n. Additional heart rhythm disorders are:\nAdams-Stokes Disease\nAtrial flutter\nSick sinus syndrome\nSinus arrhythmia\nWolff-Parkinson-White Syndrome\nAdams-Stokes Disease\nAdams-Stokes Disease, also called Stokes-Adams disease, refers to a\nheart block\n or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers.\nAtrial flutter\nAtrial 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm.\nAtrial flutter is much less common than\natrial fibrillation\n (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation. \nSymptoms of atrial flutter\nAtrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include:\nFast, steady pulse\nChest pain (angina)\nShortness of breath\nWeakness\nLightheadedness\nFainting (syncope)\nHeart palpitations\nIrregular heart rhythm combined with AFib\nStroke\nIf you have these symptoms and think you may have atrial flutter, contact your health care professional immediately.\nOther conditions and risk factors\nAtrial flutter is often associated with other conditions such as:\nHeart failure\nPrevious\nheart attack\nOpen-heart (bypass) surgery\nHeart valve surgery\nValve abnormalities\nor\ncongenital defects\nHigh blood pressure\nAtrial fibrillation\nThyroid dysfunction\nAlcoholism (especially binge drinking)\nChronic lung disease\nDiabetes\nSmoking\nPrevious stroke\nLearn more about\natrial flutter\n.\nSick sinus syndrome\nWhen 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.\nIn this condition, the heart rate can change between an overly slow rate (\nbradycardia\n) and an overly fast rate (\ntachycardia\n).\nSinus arrhythmia\nCommon in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal.\nWolff-Parkinson-White Syndrome (WPW)\nIn 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. Those electrical impulses can then be “bounced back” to the atria.\nThis can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk.\nSome people with WPW also have atrial fibrillation.\nDiagnosis and treatment\nYour health care professional can detect WPW Syndrome through an\nelectrocardiogram\n (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm.\nYour treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment.\nPossible treatment options for WPW Syndrome may include:\nMedications\nthat regulate heart rhythm\nCardioversion\nAblation\nOpen heart surgery\nAblation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications.\nWatch an animation of a normal heart beat\n.","attrs_markdown":"[Skip to main content](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#main-content)\n\n- [Heart Attack and Stroke Symptoms](https:\/\/www.heart.org\/en\/about-us\/heart-attack-and-stroke-symptoms)\n- [Volunteer](https:\/\/www.heart.org\/en\/volunteer)\n- [Learn CPR](https:\/\/cpr.heart.org\/en\/)\n- [ShopHeart](https:\/\/www.shopheart.org\/?utm_source=heart.org&utm_medium=Referral&utm_campaign=AHA-Parent-Site-Top-Nav-Desktop)\n\nMenu\n\nClose Menu\n\n- Healthy Living\n  - [Healthy Living](https:\/\/www.heart.org\/en\/healthy-living)\n  - [Healthy Eating](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating)\n    - [Add Color](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/add-color)\n    - [Cooking Skills](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/cooking-skills)\n    - [Eat Smart](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/eat-smart)\n    - [Healthy Food Facts](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/healthy-food-facts)\n    - [Heart-Check Foods](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/heart-check-foods)\n    - [Losing Weight](https:\/\/www.heart.org\/en\/healthy-living\/healthy-eating\/losing-weight)\n    - [Recipes](https:\/\/recipes.heart.org\/en\/)\n  - [Healthy Lifestyle](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle)\n    - [Healthy Habits](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/habits)\n    - [Life's Essential 8™](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/lifes-essential-8)\n    - [Mental Health and Well-being](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/mental-health-and-wellbeing)\n    - [Nutrition Education Lessons](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/nutrition-education-lessons)\n    - [Quit Smoking\/Tobacco\/Vaping](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/quit-smoking-tobacco)\n    - [Sleep](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/sleep)\n    - [Stress Management](https:\/\/www.heart.org\/en\/healthy-living\/healthy-lifestyle\/stress-management)\n  - [Fitness](https:\/\/www.heart.org\/en\/healthy-living\/fitness)\n    - [Fitness Basics](https:\/\/www.heart.org\/en\/healthy-living\/fitness\/fitness-basics)\n    - [Getting Active](https:\/\/www.heart.org\/en\/healthy-living\/fitness\/getting-active)\n    - [Staying Motivated](https:\/\/www.heart.org\/en\/healthy-living\/fitness\/staying-motivated)\n    - [Walking](https:\/\/www.heart.org\/en\/healthy-living\/fitness\/walking)\n  - [Pets and Your Health](https:\/\/www.heart.org\/en\/healthy-living\/healthy-bond-for-life-pets)\n  - [Healthy Living BEYOND Weight™ Study](https:\/\/www.heart.org\/en\/healthy-living\/healthy-living-beyond-weight-study)\n  - [Company Collaboration](https:\/\/www.heart.org\/en\/healthy-living\/company-collaboration)\n    - [Food System Strategy](https:\/\/www.heart.org\/en\/healthy-living\/company-collaboration\/food-system-strategy)\n    - [Heart-Check Certification](https:\/\/www.heart.org\/en\/healthy-living\/company-collaboration\/heart-check-certification)\n    - [Workforce Well-being](https:\/\/wellbeingworksbetter.org\/en\/)\n- Health Topics\n  - [Health Topics](https:\/\/www.heart.org\/en\/health-topics)\n    - [Aortic Aneurysm](https:\/\/www.heart.org\/en\/health-topics\/aortic-aneurysm)\n    - [Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia)\n    - [Atrial Fibrillation](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation)\n    - [Cardiac Arrest](https:\/\/www.heart.org\/en\/health-topics\/cardiac-arrest)\n    - [Cardiac Rehab](https:\/\/www.heart.org\/en\/health-topics\/cardiac-rehab)\n    - [Cardiomyopathy](https:\/\/www.heart.org\/en\/health-topics\/cardiomyopathy)\n    - [Cardiovascular-Kidney-Metabolic](https:\/\/www.heart.org\/en\/health-topics\/cardiovascular-kidney-metabolic-syndrome)\n    - [Cholesterol](https:\/\/www.heart.org\/en\/health-topics\/cholesterol)\n    - [Congenital Heart Disease](https:\/\/www.heart.org\/en\/health-topics\/congenital-heart-defects)\n    - [Diabetes](https:\/\/www.heart.org\/en\/health-topics\/diabetes)\n    - [Flu Prevention](https:\/\/www.heart.org\/en\/health-topics\/flu-prevention)\n    - [Heart Attack](https:\/\/www.heart.org\/en\/health-topics\/heart-attack)\n    - [Heart Failure](https:\/\/www.heart.org\/en\/health-topics\/heart-failure)\n    - [Heart Murmurs](https:\/\/www.heart.org\/en\/health-topics\/heart-murmurs)\n    - [Heart Valve Disease](https:\/\/www.heart.org\/en\/health-topics\/heart-valve-problems-and-disease)\n    - [High Blood Pressure](https:\/\/www.heart.org\/en\/health-topics\/high-blood-pressure)\n    - [Infective Endocarditis](https:\/\/www.heart.org\/en\/health-topics\/infective-endocarditis)\n    - [Kawasaki Disease](https:\/\/www.heart.org\/en\/health-topics\/kawasaki-disease)\n    - [Metabolic Syndrome](https:\/\/www.heart.org\/en\/health-topics\/metabolic-syndrome)\n    - [Myocarditis](https:\/\/www.heart.org\/en\/health-topics\/myocarditis)\n    - [Oral Health](https:\/\/www.heart.org\/en\/health-topics\/oral-health)\n    - [Pericarditis](https:\/\/www.heart.org\/en\/health-topics\/pericarditis)\n    - [Peripheral Artery Disease](https:\/\/www.heart.org\/en\/health-topics\/peripheral-artery-disease)\n    - [Pulmonary Embolism](https:\/\/www.heart.org\/en\/health-topics\/pulmonary-embolism)\n    - [Sleep Disorders](https:\/\/www.heart.org\/en\/health-topics\/sleep-disorders)\n    - [Stroke](https:\/\/www.stroke.org\/en\/)\n    - [Venous Thromboembolism](https:\/\/www.heart.org\/en\/health-topics\/venous-thromboembolism)\n    - [Weight and Obesity](https:\/\/www.heart.org\/en\/health-topics\/weight-and-obesity)\n  - [Patient and Caregiver Support](https:\/\/www.heart.org\/en\/health-topics\/consumer-healthcare)\n  - [Support Network Community](https:\/\/supportnetwork.heart.org\/)\n  - [Telehealth Resources](https:\/\/www.heart.org\/en\/professional\/telehealth\/telehealth-patient-resources)\n- Professionals\n  - [Professional Resources](https:\/\/www.heart.org\/en\/professional)\n  - [Professional Heart Daily](https:\/\/professional.heart.org\/en\/)\n    - [Communities]()\n    - [Education](https:\/\/professional.heart.org\/en\/education)\n    - [Guidelines & Statements](https:\/\/professional.heart.org\/en\/guidelines-and-statements)\n    - [Journals](https:\/\/professional.heart.org\/en\/journals)\n    - [Meetings](https:\/\/professional.heart.org\/en\/meetings)\n    - [Professional Membership](https:\/\/professional.heart.org\/en\/professional-membership\/become-a-member)\n    - [Research](https:\/\/professional.heart.org\/en\/research-programs)\n    - [Science News](https:\/\/professional.heart.org\/en\/science-news)\n  - [Quality Improvement](https:\/\/www.heart.org\/en\/professional\/quality-improvement)\n    - [Get With The Guidelines®](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/get-with-the-guidelines)\n    - [Healthcare Certification](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/healthcare-certification)\n    - [Hemorrhagic Stroke Initiative](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/hemorrhagic-stroke)\n    - [International Quality Care](https:\/\/international.heart.org\/en\/international-healthcare-quality)\n    - [Mission: Lifeline®](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/mission-lifeline)\n    - [Mitral Valve Reference Center Award](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/mitral-valve-foundation)\n    - [Outpatient Quality Improvement](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/outpatient)\n    - [Research and Publications](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/quality-research-and-publications)\n    - [Rural Health Care Outcomes Accelerator](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/rural-healthcare-outcomes-accelerator)\n    - [Target: Aortic Stenosis™](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/target-aortic-stenosis \"Target: Aortic Stenosis® \")\n    - [Target: Heart Failure℠](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/target-heart-failure)\n    - [Target: Stroke℠](https:\/\/www.heart.org\/en\/professional\/quality-improvement\/target-stroke)\n  - [Educators](https:\/\/www.heart.org\/en\/professional\/educator)\n    - [Kids Health Initiatives](https:\/\/www.heart.org\/en\/professional\/educator\/kids-health-initiatives \"Kids Health Initiatives \")\n    - [NFL PLAY 60](https:\/\/www.heart.org\/en\/professional\/educator\/nfl-play-60)\n    - [School Programs](https:\/\/www.heart.org\/en\/professional\/educator\/school-programs)\n    - [Teaching Gardens](https:\/\/www.heart.org\/en\/professional\/educator\/teaching-gardens)\n  - [Data Science](https:\/\/www.heart.org\/en\/professional\/datascience)\n  - [Health Care by Food™](https:\/\/healthcarexfood.org\/)\n  - [Million Hearts Collaboration®](https:\/\/www.heart.org\/en\/professional\/million-hearts)\n- Get Involved\n  - [Get Involved](https:\/\/www.heart.org\/en\/get-involved)\n  - [Volunteer](https:\/\/www.heart.org\/en\/volunteer)\n    - [Volunteer Opportunities](https:\/\/www.heart.org\/en\/volunteer\/opportunities)\n    - [Heart Club](https:\/\/www.heart.org\/en\/volunteer\/high-school-and-college-students\/start-a-club)\n    - [Corporate Volunteer Opportunities](https:\/\/www.heart.org\/en\/volunteer\/corporate-volunteer-opportunities)\n  - [Find an Event Near You](https:\/\/www.heart.org\/en\/get-involved\/find-an-event-near-you)\n    - [CycleNation](https:\/\/www2.heart.org\/site\/SPageServer\/?pagename=cn_home)\n    - [Heart Walk](https:\/\/www2.heart.org\/site\/SPageNavigator\/HeartWalk_Landing_Page.html)\n  - [Advocate](https:\/\/www.heart.org\/en\/get-involved\/advocate)\n    - [Become an Advocate](https:\/\/heartpowered.org\/)\n    - [Federal Priorities](https:\/\/www.heart.org\/en\/get-involved\/advocate\/federal-priorities)\n    - [Media Advocacy](https:\/\/www.heart.org\/en\/get-involved\/advocate\/media-advocacy)\n    - [Policy Research](https:\/\/www.heart.org\/en\/get-involved\/advocate\/policy-research)\n    - [State Issues](https:\/\/www.heart.org\/en\/get-involved\/advocate\/state-issues)\n  - [In Your Community](https:\/\/www.heart.org\/en\/about-us\/find-your-regional-office)\n  - [For Companies](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/for-companies)\n  - [Go Red for Women](https:\/\/www.goredforwomen.org\/en\/)\n- Ways to Give\n  - [Ways to Give](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give)\n    - [American Heart Challenge](https:\/\/www2.heart.org\/site\/SPageNavigator\/ahc_resources_search.html)\n    - [Cor Vitae Society](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/cor-vitae-society)\n    - [Create a Tribute Page](https:\/\/ahatribute.funraise.org\/)\n    - [Donor Advised Fund](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/planned-giving\/ways-to-give-now\/donor-advised-fund)\n    - [Fundraising Events](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/for-companies\/fundraising-events)\n    - [Gifts of Stock and Mutual Funds](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/planned-giving\/ways-to-give-now\/stock-gifts-and-mutual-funds)\n    - [Heritage Brick Walk](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/heritage-brick-walk)\n    - [Honor a Loved One](https:\/\/mygiving.heart.org\/-\/XCBTSYZR \"Honor a Loved One\")\n    - [Kids Heart Challenge](https:\/\/www2.heart.org\/site\/SPageNavigator\/khc_resources_search.html)\n    - [Make a Crypto Gift](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/cryptocurrency)\n    - [Make a Memorial Gift](https:\/\/mygiving.heart.org\/-\/XTPMHHQM \"Memorial Gifts\")\n    - [Monthly Giving As Seen On TV](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/monthly-giving-saves-lives \"Monthly Giving Saves Lives\")\n    - [Paul Dudley White Legacy Circle](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/planned-giving\/paul-dudley-white-legacy-circle)\n    - [Planned Giving](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/planned-giving)\n    - [Raise Your Way](https:\/\/raiseyourwayforaha.funraise.org\/)\n    - [Retail Supporters](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/life-is-why)\n    - [Social Impact Funds](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/social-impact-fund)\n    - [Wills and Trusts](https:\/\/www.heart.org\/en\/get-involved\/ways-to-give\/planned-giving\/ways-to-leave-a-legacy\/wills-and-trusts)\n  - [Donate Once](https:\/\/mygiving.heart.org\/-\/XMNFTTTW)\n  - [Donate Monthly](https:\/\/pages.heart.org\/drtv_helpheart?s_subsrc=site_nav)\n- About Us\n  - [About Us](https:\/\/www.heart.org\/en\/about-us)\n    - [2028 Impact Goal](https:\/\/www.heart.org\/en\/about-us\/2028-impact-goal)\n    - [CEO Roundtable](https:\/\/ceoroundtable.heart.org\/)\n    - [Family of Entities](https:\/\/www.heart.org\/en\/about-us\/the-heart-enterprise)\n    - [Financial Information](https:\/\/www.heart.org\/en\/about-us\/aha-financial-information)\n    - [Our First Century](https:\/\/www.heart.org\/en\/bold-hearts-the-centennial)\n    - [Our Lifesaving History](https:\/\/www.heart.org\/en\/about-us\/history-of-the-american-heart-association)\n    - [Our Impact](https:\/\/www.heart.org\/en\/impact-map)\n    - [Scientific Research](https:\/\/www.heart.org\/en\/about-us\/scientific-research)\n    - [Health System Transformation](https:\/\/www.heart.org\/en\/health-system-transformation \"Health System Transformation\")\n  - [News and Stories](https:\/\/www.heart.org\/en\/news)\n    - [Noticias en español](https:\/\/www.heart.org\/es\/news)\n    - [Content Editorial Guidelines](https:\/\/www.heart.org\/en\/about-us\/editorial-guidelines)\n  - [International Programs](https:\/\/www.heart.org\/en\/about-us\/international-programs)\n    - [CPR Lifesavers in India](https:\/\/www.heart.org\/en\/about-us\/international-programs\/aiims)\n    - [International Gold Standard Confidence](https:\/\/www.heart.org\/en\/about-us\/international-programs\/international-gold-standard-confidence \"International Gold Standard Conference\")\n  - [Bernard J. Tyson Office of Health](https:\/\/www.heart.org\/en\/about-us\/bernard-j-tyson-office-of-health)\n    - [Advancing Health for Everyone](https:\/\/www.heart.org\/en\/about-us\/advancing-health-for-everyone)\n    - [EmPOWERED to Serve](https:\/\/www.empoweredtoserve.org\/en\/)\n    - [Well-Being Works Better](https:\/\/wellbeingworksbetter.org\/en\/)\n  - [Policy Research](https:\/\/www.heart.org\/en\/get-involved\/advocate\/policy-research)\n    - [Advocacy Fact Sheets](https:\/\/www.heart.org\/en\/get-involved\/advocate\/policy-research\/advocacy-fact-sheets)\n    - [Policy Positions](https:\/\/www.heart.org\/en\/get-involved\/advocate\/policy-research\/our-policy-positions)\n  - [American Heart Association Ventures™](https:\/\/www.heart.org\/en\/aha-ventures)\n  - [Annual Report](https:\/\/www.heart.org\/en\/about-us\/2024-2025-annual-report)\n  - [Career Opportunities](https:\/\/heart.jobs\/?utm_campaign=heart.org-TopNav&vs=2896&utm_medium=Other&utm_source=heart.org-TopNav)\n  - [Contact Us](https:\/\/www.heart.org\/en\/about-us\/contact-us)\n  - [Media Newsroom](https:\/\/newsroom.heart.org\/)\n  - [Podcast Network](https:\/\/www.heart.org\/en\/podcast-network \"Podcast Network\")\n- Learn CPR\n  - [CPR and First Aid](https:\/\/cpr.heart.org\/en\/)\n  - [Course Card Information](https:\/\/cpr.heart.org\/en\/resources\/course-card-information)\n  - [CPR Purchase Options](https:\/\/cpr.heart.org\/en\/course-catalog-search\/purchase-options)\n  - [Find A Course](https:\/\/cpr.heart.org\/en\/course-catalog-search)\n  - [Find A Training Center](https:\/\/atlas.heart.org\/)\n- - [![Facebook](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Navigation\/Social\/facebook-gray.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.facebook.com\/AmericanHeart \"American Heart Association Facebook\")\n  - [![Instagram](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Navigation\/Social\/instagram-gray.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.instagram.com\/american_heart\/ \"American Heart Association Instagram\")\n  - [![Tik Tok](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Social\/Tiktok_grey.png?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.tiktok.com\/@americanheartassociation?lang=en \"TikTok\")\n  - 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[Home](https:\/\/www.heart.org\/en\/)\n2. [Health Topics](https:\/\/www.heart.org\/en\/health-topics)\n3. [Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia)\n4. [About Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia)\n5. [Other Heart Rhythm Disorders](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders)\n\n# Other Heart Rhythm Disorders\nArrhythmias include many conditions such as [bradycardias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/bradycardia--slow-heart-rate) and [tachycardias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/tachycardia--fast-heart-rate). Additional heart rhythm disorders are:\n\n- [**Adams-Stokes Disease**](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#adams)\n- **[Atrial flutter](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#flutter)**\n- **[Sick sinus syndrome](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#sick)**\n- **[Sinus arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#sinus)**\n- [**Wolff-Parkinson-White Syndrome**](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#wpw)\n## [Adams-Stokes Disease]()\nAdams-Stokes Disease, also called Stokes-Adams disease, refers to a [heart block](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/conduction-disorders) or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers.\n\n## [Atrial flutter]()\nAtrial 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm.\n\nAtrial flutter is much less common than [atrial fibrillation](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation\/what-is-atrial-fibrillation-afib-or-af) (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation.\n\n### Symptoms of atrial flutter\nAtrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include:\n\n- Fast, steady pulse\n- [Chest pain (angina)](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/angina-chest-pain\/angina-pectoris-stable-angina)\n- Shortness of breath\n- Weakness\n- Lightheadedness\n- [Fainting (syncope)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/syncope-fainting)\n- Heart palpitations\n- Irregular heart rhythm combined with AFib\n- [Stroke](https:\/\/www.stroke.org\/en\/about-stroke)\n\nIf you have these symptoms and think you may have atrial flutter, contact your health care professional immediately.\n\n### Other conditions and risk factors\nAtrial flutter is often associated with other conditions such as:\n\n- [Heart failure](https:\/\/www.heart.org\/en\/health-topics\/heart-failure\/what-is-heart-failure)\n- Previous [heart attack](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/about-heart-attacks)\n- [Open-heart (bypass) surgery](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/treatment-of-a-heart-attack\/cardiac-procedures-and-surgeries)\n- Heart valve surgery\n- [Valve abnormalities](https:\/\/www.heart.org\/en\/health-topics\/heart-valve-problems-and-disease\/heart-valve-problems-and-causes) or [congenital defects](https:\/\/www.heart.org\/en\/health-topics\/congenital-heart-defects\/about-congenital-heart-defects)\n- [High blood pressure](https:\/\/www.heart.org\/en\/health-topics\/high-blood-pressure\/the-facts-about-high-blood-pressure)\n- [Atrial fibrillation](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation)\n- Thyroid dysfunction\n- Alcoholism (especially binge drinking)\n- Chronic lung disease\n- [Diabetes](https:\/\/www.heart.org\/en\/health-topics\/diabetes\/about-diabetes)\n- Smoking\n- Previous stroke\n\nLearn more about [atrial flutter](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation\/what-is-atrial-fibrillation-afib-or-af\/atrial-flutter).\n\n## [Sick sinus syndrome]()\nWhen 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.\n\nIn this condition, the heart rate can change between an overly slow rate ([bradycardia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/bradycardia--slow-heart-rate)) and an overly fast rate ([tachycardia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/tachycardia--fast-heart-rate)).\n\n## [Sinus arrhythmia]()\nCommon in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal.\n\n## [Wolff-Parkinson-White Syndrome (WPW)]()\nIn 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. Those electrical impulses can then be “bounced back” to the atria.\n\nThis can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk.\n\nSome people with WPW also have atrial fibrillation.\n\n### Diagnosis and treatment\nYour health care professional can detect WPW Syndrome through an [electrocardiogram](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/diagnosing-a-heart-attack\/electrocardiogram) (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm.\n\nYour treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment.\n\nPossible treatment options for WPW Syndrome may include:\n\n- [Medications](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/medications-for-arrhythmia) that regulate heart rhythm\n- [Cardioversion](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/cardioversion)\n- [Ablation](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/ablation-for-arrhythmias)\n- Open heart surgery\n\nAblation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications.\n\n[![arrhythmia](https:\/\/www.heart.org\/-\/media\/Images\/Health-Topics\/Arrhythmia\/Arrhythmias.jpg?sc_lang=en)](https:\/\/watchlearnlive.heart.org\/index.php?moduleSelect=arrhyt)\n\n[Watch an animation of a normal heart beat](https:\/\/watchlearnlive.heart.org\/index.php?moduleSelect=arrhyt).\n***\nLast Reviewed: Sep 25, 2024\n\n[![X formerly known as Twitter](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Navigation\/Social\/x_color.svg?h=54&iar=0&mw=1910&w=54&sc_lang=en)](https:\/\/x.com\/intent\/post?url=https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders) [![Facebook](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Navigation\/Social\/facebook.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders) [![LinkedIn](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Navigation\/Social\/linkedin.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.linkedin.com\/shareArticle?url=https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders) [![Email](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Social\/mail.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](mailto:?subject=Other%20Heart%20Rhythm%20Disorders&body=https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders)\n\n![Copy site URL to your clipboard](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Social\/copylink.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)\n\n[![Print](https:\/\/www.heart.org\/en\/-\/media\/Feature\/Social\/print.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders)\n\n[Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia)\n\n[Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia)\n\n- [About Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia)\n  - [Bradycardia: Slow Heart Rate](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/bradycardia--slow-heart-rate)\n  - [Conduction Disorders](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/conduction-disorders)\n  - [Premature Contractions ‒ PACs and PVCs](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/premature-contractions-pacs-and-pvcs)\n  - [Tachycardia: Fast Heart Rate](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/tachycardia--fast-heart-rate)\n  - [Ventricular Fibrillation](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/ventricular-fibrillation)\n  - [Other Heart Rhythm Disorders](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders)\n  - [Types of Arrhythmia in Children](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/types-of-arrhythmia-in-children)\n- [Understand Your Risk for Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/understand-your-risk-for-arrhythmia)\n- [Symptoms, Diagnosis and Monitoring of Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia)\n  - [Common Tests for Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/common-tests-for-arrhythmia)\n  - [Cardiac Event Recorder](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/cardiac-event-recorder)\n  - [Electrophysiology Studies](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/electrophysiology-studies)\n  - [Holter Monitor](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/holter-monitor)\n  - [Syncope (Fainting)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/syncope-fainting)\n  - [Tilt-Table Test](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/tilt-table-test)\n- [Prevention and Treatment](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia)\n  - [Medications for Arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/medications-for-arrhythmia)\n  - [A Guide to Taking Warfarin](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/a-patients-guide-to-taking-warfarin)\n  - [Ablation for Arrhythmias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/ablation-for-arrhythmias)\n  - [Cardioversion](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/cardioversion)\n  - [Implantable Cardioverter Defibrillator (ICD)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/implantable-cardioverter-defibrillator-icd)\n  - [Living With Your ICD](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/living-with-your-icd)\n  - [ICD Questions to Ask Your Doctor](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/questions-to-ask-your-doctor--implantable-cardioverter-defibrillator-icd)\n  - [Pacemaker](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/pacemaker)\n  - [Living With Your Pacemaker](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/living-with-your-pacemaker)\n  - [Devices That May Interfere With ICDs and Pacemakers](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/devices-that-may-interfere-with-icds-and-pacemakers)\n  - [Treating Arrhythmias in Children](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/treating-arrhythmias-in-children)\n- [Arrhythmia Tools and Resources](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/arrhythmia-tools--resources)\n\nRelated Articles\n\n[![heart diagram showing leads for EP study](https:\/\/www.heart.org\/-\/media\/Images\/Health-Topics\/Arrhythmia\/EP-study.jpg?h=381&w=400&sc_lang=en&hash=A7ECAF8296CEDE4BC9FE93287F1690F5) Ablation for Arrhythmias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/ablation-for-arrhythmias)\n\n[![Woman passed out on floor](https:\/\/www.heart.org\/-\/media\/Images\/Health-Topics\/Arrhythmia\/woman-passed-out.jpg?h=533&w=800&sc_lang=en&hash=BEA6CFC7DA40239099E852D6C32B4108) Syncope (Fainting)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/syncope-fainting)\n\nDonate today to help end heart disease and stroke for everyone.\n\n[Donate Now](https:\/\/mygiving.heart.org\/-\/XNPQFTPG \"Donate Now\")\n\n\\*All health\/medical information on this website has been reviewed and approved by the American Heart Association, based on scientific research and American Heart Association guidelines. [Find more information on our content editorial process](https:\/\/www.heart.org\/en\/about-us\/editorial-guidelines).\n\n![American Heart Association](https:\/\/www.heart.org\/en\/-\/media\/Images\/Logos\/Global-Do-No-Edit\/Header\/AHA_Full.svg?h=256&iar=0&mw=1910&w=426&sc_lang=en)\n\n## Contact Us\n**National Center**  \n 7272 Greenville Ave.  \n Dallas, TX 75231\n\n**Customer Service**  \n 1-800-242-8721\n\n[Contact Us](https:\/\/www.heart.org\/en\/about-us\/contact-us)\n\n**Hours**  \n Monday - Friday: 7 a.m. – 7 p.m. CT   \n Saturday: 9 a.m. - 5 p.m. CT  \n Closed on Sundays\n\n**Tax Identification Number** 13-5613797\n\n## About Us\nAbout Us\n\n- [About the American Heart Association](https:\/\/www.heart.org\/en\/about-us \"About the American Heart Association\")\n- [Our Impact](https:\/\/www.heart.org\/en\/impact-map \"Our Impact\")\n- [Annual Report](https:\/\/www.heart.org\/en\/about-us\/2024-2025-annual-report \"Annual Report\")\n- [Financial 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Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/privacy-statement \"Privacy Policy\")\n- [Medical Advice Disclaimer](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/medical-advice \"Medical Advice Disclaimer\")\n- [Accessibility Statement](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/accessibility-statement \"Accessibility Statement\")\n- [Copyright Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/copyright \"Copyright Policy\")\n- [Ethics Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/ethics-policy \"Ethics Policy\")\n- [Conflict of Interest Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/conflict-of-interest-policy \"Conflict of Interest Policy\")\n- [Linking Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/linking-policy \"Linking Policy\")\n- [Whistleblower Policy](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/whistleblower-policy \"Whistleblower Policy\")\n- [Content Editorial Guidelines](https:\/\/www.heart.org\/en\/about-us\/editorial-guidelines \"Content Editorial Guidelines\")\n- [Suppliers & Providers](https:\/\/www.heart.org\/en\/procurement-services-department \"Suppliers & Providers\")\n- [State Fundraising Notices](https:\/\/www.heart.org\/en\/about-us\/statements-and-policies\/state-fundraising-notices \"State Fundraising Notices\")\n\nCookie Settings\n\n©2026 American Heart Association, Inc. All rights reserved. Unauthorized use prohibited.  \n The American Heart Association is a qualified 501(c)(3) tax-exempt organization.   \n \\*Red Dress ™ DHHS, Go Red ™ AHA ; National Wear Red Day® is a registered trademark.\n\n## Speed Bump\n×\n\n![American Heart Association logo](https:\/\/www.heart.org\/-\/media\/Images\/Logos\/Global-Do-No-Edit\/Two-Click\/ahalogo.png?h=165&w=280&sc_lang=en&hash=E4F07F7A44585F05A690B33CEC7B6E8D)\n\nThis link is provided for convenience only and is not an endorsement of either the linked-to entity or any product or service.\n\n[Proceed]()","attrs_readable_markdown":"Arrhythmias include many conditions such as [bradycardias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/bradycardia--slow-heart-rate) and [tachycardias](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/tachycardia--fast-heart-rate). Additional heart rhythm disorders are:\n\n- [**Adams-Stokes Disease**](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#adams)\n- **[Atrial flutter](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#flutter)**\n- **[Sick sinus syndrome](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#sick)**\n- **[Sinus arrhythmia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#sinus)**\n- [**Wolff-Parkinson-White Syndrome**](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/other-heart-rhythm-disorders#wpw)\n## [Adams-Stokes Disease]()\nAdams-Stokes Disease, also called Stokes-Adams disease, refers to a [heart block](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/conduction-disorders) or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers.\n\n## [Atrial flutter]()\nAtrial 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm.\n\nAtrial flutter is much less common than [atrial fibrillation](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation\/what-is-atrial-fibrillation-afib-or-af) (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation.\n\n### Symptoms of atrial flutter\nAtrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include:\n\n- Fast, steady pulse\n- [Chest pain (angina)](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/angina-chest-pain\/angina-pectoris-stable-angina)\n- Shortness of breath\n- Weakness\n- Lightheadedness\n- [Fainting (syncope)](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/symptoms-diagnosis--monitoring-of-arrhythmia\/syncope-fainting)\n- Heart palpitations\n- Irregular heart rhythm combined with AFib\n- [Stroke](https:\/\/www.stroke.org\/en\/about-stroke)\n\nIf you have these symptoms and think you may have atrial flutter, contact your health care professional immediately.\n\n### Other conditions and risk factors\nAtrial flutter is often associated with other conditions such as:\n\n- [Heart failure](https:\/\/www.heart.org\/en\/health-topics\/heart-failure\/what-is-heart-failure)\n- Previous [heart attack](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/about-heart-attacks)\n- [Open-heart (bypass) surgery](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/treatment-of-a-heart-attack\/cardiac-procedures-and-surgeries)\n- Heart valve surgery\n- [Valve abnormalities](https:\/\/www.heart.org\/en\/health-topics\/heart-valve-problems-and-disease\/heart-valve-problems-and-causes) or [congenital defects](https:\/\/www.heart.org\/en\/health-topics\/congenital-heart-defects\/about-congenital-heart-defects)\n- [High blood pressure](https:\/\/www.heart.org\/en\/health-topics\/high-blood-pressure\/the-facts-about-high-blood-pressure)\n- [Atrial fibrillation](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation)\n- Thyroid dysfunction\n- Alcoholism (especially binge drinking)\n- Chronic lung disease\n- [Diabetes](https:\/\/www.heart.org\/en\/health-topics\/diabetes\/about-diabetes)\n- Smoking\n- Previous stroke\n\nLearn more about [atrial flutter](https:\/\/www.heart.org\/en\/health-topics\/atrial-fibrillation\/what-is-atrial-fibrillation-afib-or-af\/atrial-flutter).\n\n## [Sick sinus syndrome]()\nWhen 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.\n\nIn this condition, the heart rate can change between an overly slow rate ([bradycardia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/bradycardia--slow-heart-rate)) and an overly fast rate ([tachycardia](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/about-arrhythmia\/tachycardia--fast-heart-rate)).\n\n## [Sinus arrhythmia]()\nCommon in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal.\n\n## [Wolff-Parkinson-White Syndrome (WPW)]()\nIn 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. Those electrical impulses can then be “bounced back” to the atria.\n\nThis can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk.\n\nSome people with WPW also have atrial fibrillation.\n\n### Diagnosis and treatment\nYour health care professional can detect WPW Syndrome through an [electrocardiogram](https:\/\/www.heart.org\/en\/health-topics\/heart-attack\/diagnosing-a-heart-attack\/electrocardiogram) (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm.\n\nYour treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment.\n\nPossible treatment options for WPW Syndrome may include:\n\n- [Medications](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/medications-for-arrhythmia) that regulate heart rhythm\n- [Cardioversion](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/cardioversion)\n- [Ablation](https:\/\/www.heart.org\/en\/health-topics\/arrhythmia\/prevention--treatment-of-arrhythmia\/ablation-for-arrhythmias)\n- Open heart surgery\n\nAblation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications.\n\n[![arrhythmia](https:\/\/www.heart.org\/-\/media\/Images\/Health-Topics\/Arrhythmia\/Arrhythmias.jpg?sc_lang=en)](https:\/\/watchlearnlive.heart.org\/index.php?moduleSelect=arrhyt)\n\n[Watch an animation of a normal heart beat](https:\/\/watchlearnlive.heart.org\/index.php?moduleSelect=arrhyt).","meta_canonical":null}

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Property	Value
URL	https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders
Last Crawled	2026-04-10 12:39:53 (4 days ago)
First Indexed	2018-08-01 15:05:43 (7 years ago)
HTTP Status Code	200
Meta Title	Other Heart Rhythm Disorders \| American Heart Association
Meta Description	The American Heart Association explains rhythm disorders such as Adams-Stokes disease, atrial flutter, sick sinus syndrome and Wolf-Parkinson-White Syndrome.
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Boilerpipe Text	Arrhythmias include many conditions such as bradycardias and tachycardias . Additional heart rhythm disorders are: Adams-Stokes Disease Atrial flutter Sick sinus syndrome Sinus arrhythmia Wolff-Parkinson-White Syndrome Adams-Stokes Disease 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. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers. Atrial flutter 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm. Atrial flutter is much less common than atrial fibrillation (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation. Symptoms of atrial flutter Atrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include: Fast, steady pulse Chest pain (angina) Shortness of breath Weakness Lightheadedness Fainting (syncope) Heart palpitations Irregular heart rhythm combined with AFib Stroke If you have these symptoms and think you may have atrial flutter, contact your health care professional immediately. Other conditions and risk factors 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 Previous stroke Learn more about atrial flutter . Sick sinus syndrome 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 condition, the heart rate can change between an overly slow rate ( bradycardia ) and an overly fast rate ( tachycardia ). Sinus arrhythmia Common in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal. Wolff-Parkinson-White Syndrome (WPW) 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. Those electrical impulses can then be “bounced back” to the atria. This can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk. Some people with WPW also have atrial fibrillation. Diagnosis and treatment Your health care professional can detect WPW Syndrome through an electrocardiogram (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm. Your treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment. Possible treatment options for WPW Syndrome may include: Medications that regulate heart rhythm Cardioversion Ablation Open heart surgery Ablation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications. Watch an animation of a normal heart beat .
Markdown	[Skip to main content](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#main-content) - [Heart Attack and Stroke Symptoms](https://www.heart.org/en/about-us/heart-attack-and-stroke-symptoms) - [Volunteer](https://www.heart.org/en/volunteer) - [Learn CPR](https://cpr.heart.org/en/) - [ShopHeart](https://www.shopheart.org/?utm_source=heart.org&utm_medium=Referral&utm_campaign=AHA-Parent-Site-Top-Nav-Desktop) Menu Close Menu - Healthy Living - [Healthy Living](https://www.heart.org/en/healthy-living) - [Healthy Eating](https://www.heart.org/en/healthy-living/healthy-eating) - [Add Color](https://www.heart.org/en/healthy-living/healthy-eating/add-color) - [Cooking Skills](https://www.heart.org/en/healthy-living/healthy-eating/cooking-skills) - [Eat Smart](https://www.heart.org/en/healthy-living/healthy-eating/eat-smart) - [Healthy Food Facts](https://www.heart.org/en/healthy-living/healthy-eating/healthy-food-facts) - [Heart-Check Foods](https://www.heart.org/en/healthy-living/healthy-eating/heart-check-foods) - 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[High Blood Pressure](https://www.heart.org/en/health-topics/high-blood-pressure) - [Infective Endocarditis](https://www.heart.org/en/health-topics/infective-endocarditis) - [Kawasaki Disease](https://www.heart.org/en/health-topics/kawasaki-disease) - [Metabolic Syndrome](https://www.heart.org/en/health-topics/metabolic-syndrome) - [Myocarditis](https://www.heart.org/en/health-topics/myocarditis) - [Oral Health](https://www.heart.org/en/health-topics/oral-health) - [Pericarditis](https://www.heart.org/en/health-topics/pericarditis) - [Peripheral Artery Disease](https://www.heart.org/en/health-topics/peripheral-artery-disease) - [Pulmonary Embolism](https://www.heart.org/en/health-topics/pulmonary-embolism) - [Sleep Disorders](https://www.heart.org/en/health-topics/sleep-disorders) - [Stroke](https://www.stroke.org/en/) - [Venous Thromboembolism](https://www.heart.org/en/health-topics/venous-thromboembolism) - [Weight and Obesity](https://www.heart.org/en/health-topics/weight-and-obesity) - [Patient and Caregiver Support](https://www.heart.org/en/health-topics/consumer-healthcare) - [Support Network Community](https://supportnetwork.heart.org/) - [Telehealth Resources](https://www.heart.org/en/professional/telehealth/telehealth-patient-resources) - Professionals - [Professional Resources](https://www.heart.org/en/professional) - [Professional Heart Daily](https://professional.heart.org/en/) - [Communities]() - [Education](https://professional.heart.org/en/education) - [Guidelines & Statements](https://professional.heart.org/en/guidelines-and-statements) - [Journals](https://professional.heart.org/en/journals) - [Meetings](https://professional.heart.org/en/meetings) - [Professional Membership](https://professional.heart.org/en/professional-membership/become-a-member) - [Research](https://professional.heart.org/en/research-programs) - [Science News](https://professional.heart.org/en/science-news) - [Quality Improvement](https://www.heart.org/en/professional/quality-improvement) - 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[Target: Aortic Stenosis™](https://www.heart.org/en/professional/quality-improvement/target-aortic-stenosis "Target: Aortic Stenosis® ") - [Target: Heart Failure℠](https://www.heart.org/en/professional/quality-improvement/target-heart-failure) - [Target: Stroke℠](https://www.heart.org/en/professional/quality-improvement/target-stroke) - [Educators](https://www.heart.org/en/professional/educator) - [Kids Health Initiatives](https://www.heart.org/en/professional/educator/kids-health-initiatives "Kids Health Initiatives ") - [NFL PLAY 60](https://www.heart.org/en/professional/educator/nfl-play-60) - [School Programs](https://www.heart.org/en/professional/educator/school-programs) - [Teaching Gardens](https://www.heart.org/en/professional/educator/teaching-gardens) - [Data Science](https://www.heart.org/en/professional/datascience) - [Health Care by Food™](https://healthcarexfood.org/) - [Million Hearts Collaboration®](https://www.heart.org/en/professional/million-hearts) - Get Involved - 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[Cardiomyopathy](https://www.heart.org/en/health-topics/cardiomyopathy) - [Cardiovascular-Kidney-Metabolic](https://www.heart.org/en/health-topics/cardiovascular-kidney-metabolic-syndrome) - [Cholesterol](https://www.heart.org/en/health-topics/cholesterol) - [Congenital Heart Disease](https://www.heart.org/en/health-topics/congenital-heart-defects) - [Diabetes](https://www.heart.org/en/health-topics/diabetes) - [Flu Prevention](https://www.heart.org/en/health-topics/flu-prevention) - [Heart Attack](https://www.heart.org/en/health-topics/heart-attack) - [Heart Failure](https://www.heart.org/en/health-topics/heart-failure) - [Heart Murmurs](https://www.heart.org/en/health-topics/heart-murmurs) - [Heart Valve Disease](https://www.heart.org/en/health-topics/heart-valve-problems-and-disease) - [High Blood Pressure](https://www.heart.org/en/health-topics/high-blood-pressure) - [Infective Endocarditis](https://www.heart.org/en/health-topics/infective-endocarditis) - [Kawasaki Disease](https://www.heart.org/en/health-topics/kawasaki-disease) - 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[Donate Monthly](https://pages.heart.org/drtv_helpheart?s_subsrc=site_nav) - About Us - Learn CPR [CPR and First Aid](https://cpr.heart.org/en/) - In Your Community - [Heart Attack and Stroke Symptoms](https://www.heart.org/en/about-us/heart-attack-and-stroke-symptoms) - [Learn CPR](https://cpr.heart.org/en/) - [Volunteer](https://www.heart.org/en/volunteer) - [ShopHeart](https://www.shopheart.org/?utm_source=heart.org&utm_medium=Referral&utm_campaign=AHA-Parent-Site-Top-Nav-Mobile) 1. [Home](https://www.heart.org/en/) 2. [Health Topics](https://www.heart.org/en/health-topics) 3. [Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia) 4. [About Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia) 5. [Other Heart Rhythm Disorders](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) # Other Heart Rhythm Disorders Arrhythmias include many conditions such as [bradycardias](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/bradycardia--slow-heart-rate) and [tachycardias](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate). Additional heart rhythm disorders are: - [Adams-Stokes Disease](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#adams) - [Atrial flutter](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#flutter) - [Sick sinus syndrome](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#sick) - [Sinus arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#sinus) - [Wolff-Parkinson-White Syndrome](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#wpw) ## [Adams-Stokes Disease]() Adams-Stokes Disease, also called Stokes-Adams disease, refers to a [heart block](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/conduction-disorders) or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers. ## [Atrial flutter]() 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm. Atrial flutter is much less common than [atrial fibrillation](https://www.heart.org/en/health-topics/atrial-fibrillation/what-is-atrial-fibrillation-afib-or-af) (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation. ### Symptoms of atrial flutter Atrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include: - Fast, steady pulse - [Chest pain (angina)](https://www.heart.org/en/health-topics/heart-attack/angina-chest-pain/angina-pectoris-stable-angina) - Shortness of breath - Weakness - Lightheadedness - [Fainting (syncope)](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/syncope-fainting) - Heart palpitations - Irregular heart rhythm combined with AFib - [Stroke](https://www.stroke.org/en/about-stroke) If you have these symptoms and think you may have atrial flutter, contact your health care professional immediately. ### Other conditions and risk factors Atrial flutter is often associated with other conditions such as: - [Heart failure](https://www.heart.org/en/health-topics/heart-failure/what-is-heart-failure) - Previous [heart attack](https://www.heart.org/en/health-topics/heart-attack/about-heart-attacks) - [Open-heart (bypass) surgery](https://www.heart.org/en/health-topics/heart-attack/treatment-of-a-heart-attack/cardiac-procedures-and-surgeries) - Heart valve surgery - [Valve abnormalities](https://www.heart.org/en/health-topics/heart-valve-problems-and-disease/heart-valve-problems-and-causes) or [congenital defects](https://www.heart.org/en/health-topics/congenital-heart-defects/about-congenital-heart-defects) - [High blood pressure](https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure) - [Atrial fibrillation](https://www.heart.org/en/health-topics/atrial-fibrillation) - Thyroid dysfunction - Alcoholism (especially binge drinking) - Chronic lung disease - [Diabetes](https://www.heart.org/en/health-topics/diabetes/about-diabetes) - Smoking - Previous stroke Learn more about [atrial flutter](https://www.heart.org/en/health-topics/atrial-fibrillation/what-is-atrial-fibrillation-afib-or-af/atrial-flutter). ## [Sick sinus syndrome]() 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 condition, the heart rate can change between an overly slow rate ([bradycardia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/bradycardia--slow-heart-rate)) and an overly fast rate ([tachycardia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate)). ## [Sinus arrhythmia]() Common in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal. ## [Wolff-Parkinson-White Syndrome (WPW)]() 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. Those electrical impulses can then be “bounced back” to the atria. This can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk. Some people with WPW also have atrial fibrillation. ### Diagnosis and treatment Your health care professional can detect WPW Syndrome through an [electrocardiogram](https://www.heart.org/en/health-topics/heart-attack/diagnosing-a-heart-attack/electrocardiogram) (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm. Your treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment. Possible treatment options for WPW Syndrome may include: - [Medications](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/medications-for-arrhythmia) that regulate heart rhythm - [Cardioversion](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/cardioversion) - [Ablation](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/ablation-for-arrhythmias) - Open heart surgery Ablation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications. [![arrhythmia](https://www.heart.org/-/media/Images/Health-Topics/Arrhythmia/Arrhythmias.jpg?sc_lang=en)](https://watchlearnlive.heart.org/index.php?moduleSelect=arrhyt) [Watch an animation of a normal heart beat](https://watchlearnlive.heart.org/index.php?moduleSelect=arrhyt). *** Last Reviewed: Sep 25, 2024 [![X formerly known as Twitter](https://www.heart.org/en/-/media/Feature/Navigation/Social/x_color.svg?h=54&iar=0&mw=1910&w=54&sc_lang=en)](https://x.com/intent/post?url=https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) [![Facebook](https://www.heart.org/en/-/media/Feature/Navigation/Social/facebook.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https://www.facebook.com/sharer/sharer.php?u=https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) [![LinkedIn](https://www.heart.org/en/-/media/Feature/Navigation/Social/linkedin.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https://www.linkedin.com/shareArticle?url=https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) [![Email](https://www.heart.org/en/-/media/Feature/Social/mail.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](mailto:?subject=Other%20Heart%20Rhythm%20Disorders&body=https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) ![Copy site URL to your clipboard](https://www.heart.org/en/-/media/Feature/Social/copylink.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en) [![Print](https://www.heart.org/en/-/media/Feature/Social/print.svg?h=52&iar=0&mw=1910&w=52&sc_lang=en)](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) [Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia) [Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia) - [About Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia) - [Bradycardia: Slow Heart Rate](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/bradycardia--slow-heart-rate) - [Conduction Disorders](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/conduction-disorders) - [Premature Contractions ‒ PACs and PVCs](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/premature-contractions-pacs-and-pvcs) - [Tachycardia: Fast Heart Rate](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate) - [Ventricular Fibrillation](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/ventricular-fibrillation) - [Other Heart Rhythm Disorders](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders) - [Types of Arrhythmia in Children](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/types-of-arrhythmia-in-children) - [Understand Your Risk for Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/understand-your-risk-for-arrhythmia) - [Symptoms, Diagnosis and Monitoring of Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia) - [Common Tests for Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/common-tests-for-arrhythmia) - [Cardiac Event Recorder](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/cardiac-event-recorder) - [Electrophysiology Studies](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/electrophysiology-studies) - [Holter Monitor](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/holter-monitor) - [Syncope (Fainting)](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/syncope-fainting) - [Tilt-Table Test](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/tilt-table-test) - [Prevention and Treatment](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia) - [Medications for Arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/medications-for-arrhythmia) - [A Guide to Taking Warfarin](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/a-patients-guide-to-taking-warfarin) - [Ablation for Arrhythmias](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/ablation-for-arrhythmias) - [Cardioversion](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/cardioversion) - [Implantable Cardioverter Defibrillator (ICD)](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/implantable-cardioverter-defibrillator-icd) - [Living With Your ICD](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/living-with-your-icd) - [ICD Questions to Ask Your Doctor](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/questions-to-ask-your-doctor--implantable-cardioverter-defibrillator-icd) - [Pacemaker](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/pacemaker) - [Living With Your Pacemaker](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/living-with-your-pacemaker) - [Devices That May Interfere With ICDs and Pacemakers](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/devices-that-may-interfere-with-icds-and-pacemakers) - [Treating Arrhythmias in Children](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/treating-arrhythmias-in-children) - [Arrhythmia Tools and Resources](https://www.heart.org/en/health-topics/arrhythmia/arrhythmia-tools--resources) Related Articles [![heart diagram showing leads for EP study](https://www.heart.org/-/media/Images/Health-Topics/Arrhythmia/EP-study.jpg?h=381&w=400&sc_lang=en&hash=A7ECAF8296CEDE4BC9FE93287F1690F5) Ablation for Arrhythmias](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/ablation-for-arrhythmias) [![Woman passed out on floor](https://www.heart.org/-/media/Images/Health-Topics/Arrhythmia/woman-passed-out.jpg?h=533&w=800&sc_lang=en&hash=BEA6CFC7DA40239099E852D6C32B4108) Syncope (Fainting)](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/syncope-fainting) Donate today to help end heart disease and stroke for everyone. 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Readable Markdown	Arrhythmias include many conditions such as [bradycardias](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/bradycardia--slow-heart-rate) and [tachycardias](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate). Additional heart rhythm disorders are: - [Adams-Stokes Disease](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#adams) - [Atrial flutter](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#flutter) - [Sick sinus syndrome](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#sick) - [Sinus arrhythmia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#sinus) - [Wolff-Parkinson-White Syndrome](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/other-heart-rhythm-disorders#wpw) ## [Adams-Stokes Disease]() Adams-Stokes Disease, also called Stokes-Adams disease, refers to a [heart block](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/conduction-disorders) or other arrhythmia that can slow the heart rate considerably, causing fainting (syncope) or convulsions. It’s caused when the heart’s electrical signals are interrupted as they pass from the upper (atria) to the lower (ventricles) chambers. ## [Atrial flutter]() 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). This leads to an overly fast heartbeat, which can have either a regular or irregular rhythm. Atrial flutter is much less common than [atrial fibrillation](https://www.heart.org/en/health-topics/atrial-fibrillation/what-is-atrial-fibrillation-afib-or-af) (AFib or AF), but its causes and consequences are similar. People with atrial flutter can also have periods of atrial fibrillation. ### Symptoms of atrial flutter Atrial flutter may present with a heartbeat that’s overly fast, irregular or with heart palpitations (feeling a hard, fast or irregular heartbeat in the chest). Other symptoms include: - Fast, steady pulse - [Chest pain (angina)](https://www.heart.org/en/health-topics/heart-attack/angina-chest-pain/angina-pectoris-stable-angina) - Shortness of breath - Weakness - Lightheadedness - [Fainting (syncope)](https://www.heart.org/en/health-topics/arrhythmia/symptoms-diagnosis--monitoring-of-arrhythmia/syncope-fainting) - Heart palpitations - Irregular heart rhythm combined with AFib - [Stroke](https://www.stroke.org/en/about-stroke) If you have these symptoms and think you may have atrial flutter, contact your health care professional immediately. ### Other conditions and risk factors Atrial flutter is often associated with other conditions such as: - [Heart failure](https://www.heart.org/en/health-topics/heart-failure/what-is-heart-failure) - Previous [heart attack](https://www.heart.org/en/health-topics/heart-attack/about-heart-attacks) - [Open-heart (bypass) surgery](https://www.heart.org/en/health-topics/heart-attack/treatment-of-a-heart-attack/cardiac-procedures-and-surgeries) - Heart valve surgery - [Valve abnormalities](https://www.heart.org/en/health-topics/heart-valve-problems-and-disease/heart-valve-problems-and-causes) or [congenital defects](https://www.heart.org/en/health-topics/congenital-heart-defects/about-congenital-heart-defects) - [High blood pressure](https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure) - [Atrial fibrillation](https://www.heart.org/en/health-topics/atrial-fibrillation) - Thyroid dysfunction - Alcoholism (especially binge drinking) - Chronic lung disease - [Diabetes](https://www.heart.org/en/health-topics/diabetes/about-diabetes) - Smoking - Previous stroke Learn more about [atrial flutter](https://www.heart.org/en/health-topics/atrial-fibrillation/what-is-atrial-fibrillation-afib-or-af/atrial-flutter). ## [Sick sinus syndrome]() 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 condition, the heart rate can change between an overly slow rate ([bradycardia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/bradycardia--slow-heart-rate)) and an overly fast rate ([tachycardia](https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate)). ## [Sinus arrhythmia]() Common in children, this type of irregular heart rhythm refers to changes in the heart rate during breathing. The heart beats faster for a few moments when you breathe in. When you breathe out, it slows down. Sinus arrhythmia is normal. ## [Wolff-Parkinson-White Syndrome (WPW)]() 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. Those electrical impulses can then be “bounced back” to the atria. This can produce overly fast heart rates. Other people with WPW Syndrome may not feel any obvious symptoms but still face serious risk. Some people with WPW also have atrial fibrillation. ### Diagnosis and treatment Your health care professional can detect WPW Syndrome through an [electrocardiogram](https://www.heart.org/en/health-topics/heart-attack/diagnosing-a-heart-attack/electrocardiogram) (EKG or ECG). This noninvasive test can show irregularities in your heart rhythm. Your treatment plan will depend on many factors, including your risk of future arrhythmias as well as how frequent and severe your symptoms are. People who don’t have symptoms may not need treatment. Possible treatment options for WPW Syndrome may include: - [Medications](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/medications-for-arrhythmia) that regulate heart rhythm - [Cardioversion](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/cardioversion) - [Ablation](https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/ablation-for-arrhythmias) - Open heart surgery Ablation is the most common treatment for WPW Syndrome. It has a high success rate and a low risk of complications. [![arrhythmia](https://www.heart.org/-/media/Images/Health-Topics/Arrhythmia/Arrhythmias.jpg?sc_lang=en)](https://watchlearnlive.heart.org/index.php?moduleSelect=arrhyt) [Watch an animation of a normal heart beat](https://watchlearnlive.heart.org/index.php?moduleSelect=arrhyt).
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