🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 187 (from laksa194)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa187.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.healthdirect.gov.au/heart-arrhythmias\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.healthdirect.gov.au/heart-arrhythmias\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.healthdirect.gov.au\/heart-arrhythmias","crawl_time":1775027628,"first_indexed_time":1481430302,"http_code":200,"src_unparsed":"au,gov,healthdirect!www,\/heart-arrhythmias s443","src_root_hash":"11476440364350543187","history_drop_reason":null,"meta_title":"Heart arrhythmias | healthdirect","meta_descriptions":["A heart arrhythmia is an irregular heartbeat. Your heart can beat too fast, too slow or irregularly. Learn how to recognise the symptoms here."],"attrs_boilerpipe_text":"Key facts\nHeart arrhythmia is when your heart beats abnormally — either too fast, too slow or irregularly.\nHeart arrhythmias can be caused by a conditions that affect the heart or from excessive alcohol, smoking or drug use.\nSymptoms can include chest pain, fainting, sweating, shortness of breath and anxiety.\nTreatment can include medicines, catheter ablation, electrical cardioversion and implantable devices.\nComplications of heart arrhythmias are heart failure, increased risk of stroke or death.\nOn this page\nWhat are heart arrhythmias?\nWhat are some types of heart arrhythmias?\nWhat are the symptoms of heart arrhythmias?\nWhen should I call an ambulance or go to the emergency department?\nWhat should I do if I don't need emergency healthcare?\nWhat causes heart arrhythmias?\nHow are heart arrhythmias diagnosed?\nHow are heart arrhythmias treated?\nWhat are the complications of heart arrhythmias?\nCan heart arrhythmias be prevented?\nResources and support\nRelated information on Australian websites\nWhat are heart arrhythmias?\nAn arrhythmia is a\nheart condition\nwhere your\nheart\nbeats abnormally. Your heart may beat\ntoo quickly\n,\ntoo slowly\n, or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats.\nArrythmias have a range of outcomes. Some arrhythmias:\nare life-threatening and need urgent treatment\ncan be managed well with support from your doctor\nare a symptom of an underlying condition that needs treatment\nWhat are some types of heart arrhythmias?\nArrhythmias are classified by:\nwhere the faulty signals come from in your heart\nhow fast your heart rate is\nwhether your heartbeat is irregular or not\nEctopic beats\nAn ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless.\nSupraventricular arrhythmias\nSupraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly.\nThe most common type is\natrial fibrillation\n— when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively.\nVentricular arrhythmias\nVentricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention.\nBradyarrhythmia\nBradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow\nresting heart rates\nthat don't cause any problems.\nPeople who do not experience symptoms with bradycardia usually do not need emergency treatment.\nWhat are the symptoms of heart arrhythmias?\nIf you have a heart arrhythmia, you may experience:\npalpitations\n— you may feel your heart is racing, skipping beats or fluttering in your chest\nchest pains\nfatigue\n,\nlight-headedness\nor dizziness\nfainting\nshortness of breath\nsweating\nanxiety\nMany people with heart arrhythmias have no symptoms.\nCHECK YOUR SYMPTOMS\n— Use the\nSymptom Checker\nand find out if you need to seek medical help.\nWhen should I call an ambulance or go to the emergency department?\nYou should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you:\nfeel dizzy or light-headed\nfaint\nfeeling\nshort of breath\nhave\npain in your chest\nWhat should I do if I don't need emergency healthcare?\nIf it's not an emergency, see your doctor if you suspect you have a heart arrhythmia.\nIt's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor.\nWhat causes heart arrhythmias?\nHeart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle.\nHeart problems that can cause heart arrhythmias include:\ncoronary heart disease\nabnormal heart valves\ncardiomyopathy\nh\nigh blood pressure\nOther health conditions that can cause heart arrhythmias include:\nthyroid problems\nobstructive\nsleep apnoea\nsome medicines\ngenetic conditions —\nBrugada syndrome\n,\nLong QT syndrome\nand\nWolff-Parkinson-White syndrome\nliving with\noverweight or obesity\nLifestyle factors that can increase your risk of developing a heart arrhythmia include:\nsmoking\nheavy alcohol use\ndrug use\nHow are heart arrhythmias diagnosed?\nYour doctor may diagnose you with a heart arrhythmia by:\nasking you about your symptoms and\nmedical history\nexamining your body\n, including listening to your heart\nreferring you for medical tests to confirm a heart arrhythmia and rule out other conditions\nYour doctor may refer you for test such as:\nECG\n(electrocardiogram)\nHolter Monitor\n— a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm\nechocardiogram — an ultrasound procedure where your doctor looks at your heart\nchest x-ray\n,\nblood\nor\nurine tests\na\nstress test\n— measures how well your heart performs during exercise\nelectrophysiology studies — looks at how your heart conducts electrical activity\nheart catheterisation\nHow are heart arrhythmias treated?\nTreatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include:\nmedicines\n— medicines to slow down your heart rate (e.g.\nbeta-blockers\n), normalise your heart rhythm or\nblood thinning medicines\n, if you are at risk of having a\nstroke\nelectrical cardioversion\n— an electric shock to your chest under\ngeneral anaesthesia\nto correct your heart's rhythm\ncatheter ablation\n— a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm\nimplantable devices\n—\npacemaker\nor\nimplantable cardiac defibrillators\n(ICD)\nYour treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia.\nSome heart arrhythmias are harmless and do not need to be treated.\nWhat are the complications of heart arrhythmias?\nComplications depend on the type of heart arrhythmia and may include:\nstroke\nheart failure\ncardiac arrest and sudden death\nCan heart arrhythmias be prevented?\nSome types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle.\nIf you are at least 45 years of age (or 35 if you are Aboriginal and\/or Torres Strait Islander), ask your doctor for a\nheart health check\n. You should be re-checked every 2 years.\nIf you know you have heart problems, it is important to:\nTake your medicines and treatments as prescribed.\nBe aware of any symptoms and report them to your doctor.\nHere are some tips to help reduce your risk of heart disease:\nMaintain a\nhealthy body weight\nand\nwaist circumference\n.\nKeep\nphysically active\n.\nMaintain a\nhealthy, balanced diet\n.\nQuit smoking\n.\nReduce your\nalcohol intake\n.\nManage your\ncholesterol\n,\nblood sugar\nand\nblood pressure\nlevels.\nGet enough\nsleep\n.\nRead about a\nhealthy heart diet\n.\nRead about\ncardiovascular exercise\n.\nRead about the\nphysical activity guidelines for older people\n.\nResources and support\nLearn more about\nheart arrhythmias\non the Heart Foundation website.\nVisit the Heart Foundation webpage for more information about\nkeeping your heart healthy\n.\nCall healthdirect on\n1800 022 222\nat any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice.\nDo you prefer to read in languages other than English?\nThe Heart Foundation has a selection of\nheart health information brochures\nin a range of languages.\nLooking for information for Aboriginal and\/or Torres Strait Islander people?\nHer Heart\nhas information about heart health for Aboriginal and Torres Strait Islander people.\nSt Vincent's Hospital\noffers Aboriginal and Torres Strait Islander heart health information.","attrs_markdown":"[![healthdirect australia logo](https:\/\/www.healthdirect.gov.au\/assets\/images\/logo-hda.svg)](https:\/\/www.healthdirect.gov.au\/)\n\nSign in\n\n- [Join](https:\/\/www.healthdirect.gov.au\/account\/join)\n- [Sign in](https:\/\/www.healthdirect.gov.au\/account\/signin)\n\nMenu\n# Healthdirect Free Australian health advice you can count on.\nJoin\n\nSign in\n\nMedical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately\n\nhealthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.\n\n- [Home](https:\/\/www.healthdirect.gov.au\/)\n- Health topics A-Z\n  - [Conditions](https:\/\/www.healthdirect.gov.au\/health-topics\/conditions) [Gastroenteritis](https:\/\/www.healthdirect.gov.au\/gastroenteritis) [Skin Conditions](https:\/\/www.healthdirect.gov.au\/skin-conditions) [Whooping Cough](https:\/\/www.healthdirect.gov.au\/whooping-cough)\n  - [Symptoms](https:\/\/www.healthdirect.gov.au\/health-topics\/symptoms) [Abdominal Pain](https:\/\/www.healthdirect.gov.au\/abdominal-pain) [Bites and Stings](https:\/\/www.healthdirect.gov.au\/bites-and-stings) [Diarrhoea](https:\/\/www.healthdirect.gov.au\/diarrhoea)\n  - [Procedures](https:\/\/www.healthdirect.gov.au\/health-topics\/procedures) [Colonoscopy](https:\/\/www.healthdirect.gov.au\/colonoscopy) [Grommets](https:\/\/www.healthdirect.gov.au\/grommets) [Liposuction](https:\/\/www.healthdirect.gov.au\/liposuction) [Tubal ligation](https:\/\/www.healthdirect.gov.au\/tubal-ligation)\n  - 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[Conditions](https:\/\/www.healthdirect.gov.au\/health-topics\/conditions)\n  - [Symptoms](https:\/\/www.healthdirect.gov.au\/health-topics\/symptoms)\n  - [Procedures](https:\/\/www.healthdirect.gov.au\/health-topics\/procedures)\n  - [Life stages](https:\/\/www.healthdirect.gov.au\/life-stages)\n  - [All topics](https:\/\/www.healthdirect.gov.au\/health-topics)\n- [Medicines](https:\/\/www.healthdirect.gov.au\/medicines)\n- [Symptom checker](https:\/\/www.healthdirect.gov.au\/symptom-checker)\n- [Service finder](https:\/\/www.healthdirect.gov.au\/australian-health-services)\n\n[beginning of content]()\n\n# Heart arrhythmias\n*9-minute read*\n\nPrint\n\nShare\n\n[share via Facebook](https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.healthdirect.gov.au\/heart-arrhythmias \"Share this page on Facebook\")\n\nshare via Email\n\nSave\n\n[Listen](https:\/\/app-oc.readspeaker.com\/cgi-bin\/rsent?customerid=8207&lang=en_au&readid=mainContentArticleText&url=https:\/\/www.healthdirect.gov.au\/heart-arrhythmias \"Listen to this page using ReadSpeaker\")\n\n**If your heart is beating in an unusual way and you are concerned, go immediately to your nearest emergency department or call triple zero (000) and ask for an ambulance.**\n\n## Key facts\n- Heart arrhythmia is when your heart beats abnormally — either too fast, too slow or irregularly.\n- Heart arrhythmias can be caused by a conditions that affect the heart or from excessive alcohol, smoking or drug use.\n- Symptoms can include chest pain, fainting, sweating, shortness of breath and anxiety.\n- Treatment can include medicines, catheter ablation, electrical cardioversion and implantable devices.\n- Complications of heart arrhythmias are heart failure, increased risk of stroke or death.\n\n## On this page\n- [What are heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#what-are)\n- [What are some types of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#types)\n- [What are the symptoms of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#symptoms)\n- [When should I call an ambulance or go to the emergency department?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#ambulance)\n- [What should I do if I don't need emergency healthcare?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#doctor)\n- [What causes heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#causes)\n- [How are heart arrhythmias diagnosed?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#diagnosed)\n- [How are heart arrhythmias treated?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#treated)\n- [What are the complications of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#complications)\n- [Can heart arrhythmias be prevented?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#prevented)\n- [Resources and support](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#resources)\n- [Related information on Australian websites](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#searchGeneralResults)\n## What are heart arrhythmias?\nAn arrhythmia is a [heart condition](https:\/\/www.healthdirect.gov.au\/heart-and-cardiovascular-conditions) where your [heart](https:\/\/www.healthdirect.gov.au\/heart) beats abnormally. Your heart may beat [too quickly](https:\/\/www.healthdirect.gov.au\/tachycardia), [too slowly](https:\/\/www.healthdirect.gov.au\/bradycardia), or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats.\n\nArrythmias have a range of outcomes. Some arrhythmias:\n\n- are life-threatening and need urgent treatment\n- can be managed well with support from your doctor\n- are a symptom of an underlying condition that needs treatment\n## What are some types of heart arrhythmias?\nArrhythmias are classified by:\n\n- where the faulty signals come from in your heart\n- how fast your heart rate is\n- whether your heartbeat is irregular or not\n### Ectopic beats\nAn ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless.\n\n### Supraventricular arrhythmias\nSupraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly.\n\nThe most common type is [atrial fibrillation](https:\/\/www.healthdirect.gov.au\/atrial-fibrillation) — when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively.\n\n### Ventricular arrhythmias\nVentricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention.\n\n### Bradyarrhythmia\nBradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow [resting heart rates](https:\/\/www.healthdirect.gov.au\/resting-heart-rate) that don't cause any problems.\n\nPeople who do not experience symptoms with bradycardia usually do not need emergency treatment.\n\n## What are the symptoms of heart arrhythmias?\nIf you have a heart arrhythmia, you may experience:\n\n- [palpitations](https:\/\/www.healthdirect.gov.au\/heart-palpitations) — you may feel your heart is racing, skipping beats or fluttering in your chest\n- [chest pains](https:\/\/www.healthdirect.gov.au\/chest-pain)\n- [fatigue](https:\/\/www.healthdirect.gov.au\/fatigue), [light-headedness](https:\/\/www.healthdirect.gov.au\/lightheadedness) or dizziness\n- [fainting](https:\/\/www.healthdirect.gov.au\/fainting)\n- [shortness of breath](https:\/\/www.healthdirect.gov.au\/shortness-of-breath)\n- sweating\n- [anxiety](https:\/\/www.healthdirect.gov.au\/anxiety)\n\nMany people with heart arrhythmias have no symptoms.\n\n[**CHECK YOUR SYMPTOMS** — Use the **Symptom Checker** and find out if you need to seek medical help.](https:\/\/www.healthdirect.gov.au\/symptom-checker)\n\n## When should I call an ambulance or go to the emergency department?\n**You should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you:**\n\n- feel dizzy or light-headed\n- [faint](https:\/\/www.healthdirect.gov.au\/fainting)\n- feeling [short of breath](https:\/\/www.healthdirect.gov.au\/shortness-of-breath)\n- have [pain in your chest](https:\/\/www.healthdirect.gov.au\/chest-pain)\n## What should I do if I don't need emergency healthcare?\nIf it's not an emergency, see your doctor if you suspect you have a heart arrhythmia.\n\nIt's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor.\n\n## What causes heart arrhythmias?\nHeart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle.\n\nHeart problems that can cause heart arrhythmias include:\n\n- [coronary heart disease](https:\/\/www.healthdirect.gov.au\/coronary-heart-disease-and-atherosclerosis)\n- [abnormal heart valves](https:\/\/www.healthdirect.gov.au\/heart-valve-disease)\n- [cardiomyopathy](https:\/\/www.healthdirect.gov.au\/cardiomyopathy)\n- h[igh blood pressure](https:\/\/www.healthdirect.gov.au\/high-blood-pressure-hypertension)\n\nOther health conditions that can cause heart arrhythmias include:\n\n- [thyroid problems](https:\/\/www.healthdirect.gov.au\/thyroid-problems)\n- obstructive [sleep apnoea](https:\/\/www.healthdirect.gov.au\/obstructive-sleep-apnoea)\n- some medicines\n- genetic conditions — [Brugada syndrome](https:\/\/www.healthdirect.gov.au\/brugada-syndrome), [Long QT syndrome](https:\/\/www.healthdirect.gov.au\/long-qt-syndrome) and [Wolff-Parkinson-White syndrome](https:\/\/www.healthdirect.gov.au\/wolff-parkinson-white-syndrome)\n- living with [overweight or obesity](https:\/\/www.healthdirect.gov.au\/obesity)\n\nLifestyle factors that can increase your risk of developing a heart arrhythmia include:\n\n- [smoking](https:\/\/www.healthdirect.gov.au\/quit-smoking-vaping)\n- [heavy alcohol use](https:\/\/www.healthdirect.gov.au\/how-alcohol-affects-your-health)\n- [drug use](https:\/\/www.healthdirect.gov.au\/Illicit-drug-use)\n## How are heart arrhythmias diagnosed?\nYour doctor may diagnose you with a heart arrhythmia by:\n\n- asking you about your symptoms and [medical history](https:\/\/www.healthdirect.gov.au\/family-medical-history)\n- [examining your body](https:\/\/www.healthdirect.gov.au\/physical-examination-by-a-doctor), including listening to your heart\n- referring you for medical tests to confirm a heart arrhythmia and rule out other conditions\n\nYour doctor may refer you for test such as:\n\n- [ECG](https:\/\/www.healthdirect.gov.au\/electrocardiogram-ecg) (electrocardiogram)\n- [Holter Monitor](https:\/\/www.canberrahealthservices.act.gov.au\/__data\/assets\/pdf_file\/0020\/2079011\/Holter-monitor.pdf) — a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm\n- echocardiogram — an ultrasound procedure where your doctor looks at your heart\n- [chest x-ray](https:\/\/www.healthdirect.gov.au\/x-rays), [blood](https:\/\/www.healthdirect.gov.au\/blood-tests-a-z) or [urine tests](https:\/\/www.healthdirect.gov.au\/urine-tests)\n- a [stress test](http:\/\/www.mydr.com.au\/tests-investigations\/exercise-stress-testing) — measures how well your heart performs during exercise\n- electrophysiology studies — looks at how your heart conducts electrical activity\n- [heart catheterisation](https:\/\/www.healthdirect.gov.au\/cardiac-catheterisation)\n## How are heart arrhythmias treated?\nTreatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include:\n\n- **medicines** — medicines to slow down your heart rate (e.g. [beta-blockers](https:\/\/www.healthdirect.gov.au\/beta-blockers)), normalise your heart rhythm or [blood thinning medicines](https:\/\/www.healthdirect.gov.au\/blood-thinners), if you are at risk of having a [stroke](https:\/\/www.healthdirect.gov.au\/stroke)\n- **electrical cardioversion** — an electric shock to your chest under [general anaesthesia](https:\/\/www.healthdirect.gov.au\/general-anaesthetic) to correct your heart's rhythm\n- **[catheter ablation](https:\/\/www.healthdirect.gov.au\/cardiac-ablation)** — a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm\n- **implantable devices** — [pacemaker](https:\/\/www.healthdirect.gov.au\/pacemaker) or [implantable cardiac defibrillators](https:\/\/www.healthdirect.gov.au\/implantable-cardioverter-defibrillators) (ICD)\n\nYour treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia.\n\nSome heart arrhythmias are harmless and do not need to be treated.\n\n## What are the complications of heart arrhythmias?\nComplications depend on the type of heart arrhythmia and may include:\n\n- [stroke](https:\/\/www.healthdirect.gov.au\/stroke)\n- [heart failure](https:\/\/www.healthdirect.gov.au\/heart-failure)\n- cardiac arrest and sudden death\n## Can heart arrhythmias be prevented?\nSome types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle.\n\nIf you are at least 45 years of age (or 35 if you are Aboriginal and\/or Torres Strait Islander), ask your doctor for a [heart health check](https:\/\/www.healthdirect.gov.au\/should-i-be-tested-for-heart-disease). You should be re-checked every 2 years.\n\nIf you know you have heart problems, it is important to:\n\n- Take your medicines and treatments as prescribed.\n- Be aware of any symptoms and report them to your doctor.\n\nHere are some tips to help reduce your risk of heart disease:\n\n- Maintain a [healthy body weight](https:\/\/www.healthdirect.gov.au\/weight-loss-and-dieting) and [waist circumference](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n- Keep [physically active](https:\/\/www.healthdirect.gov.au\/fitness-and-exercise).\n- Maintain a [healthy, balanced diet](https:\/\/www.healthdirect.gov.au\/healthy-heart-diet).\n- [Quit smoking](https:\/\/www.healthdirect.gov.au\/quit-smoking-vaping).\n- Reduce your [alcohol intake](https:\/\/www.healthdirect.gov.au\/how-alcohol-affects-your-health).\n- Manage your [cholesterol](https:\/\/www.healthdirect.gov.au\/cholesterol), [blood sugar](https:\/\/www.healthdirect.gov.au\/blood-glucose-test) and [blood pressure](https:\/\/www.healthdirect.gov.au\/what-is-a-healthy-blood-pressure) levels.\n- Get enough [sleep](https:\/\/www.healthdirect.gov.au\/sleep).\n\nRead about a [healthy heart diet](https:\/\/www.healthdirect.gov.au\/healthy-heart-diet).\n\nRead about [cardiovascular exercise](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n\nRead about the [physical activity guidelines for older people](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n\n## Resources and support\n- Learn more about [heart arrhythmias](https:\/\/www.heartfoundation.org.au\/your-heart\/heart-arrhythmia) on the Heart Foundation website.\n- Visit the Heart Foundation webpage for more information about [keeping your heart healthy](https:\/\/www.heartfoundation.org.au\/healthy-living\/keeping-your-heart-healthy).\n- Call healthdirect on [1800 022 222](tel:1800022222) at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice.\n### Do you prefer to read in languages other than English?\nThe Heart Foundation has a selection of [heart health information brochures](https:\/\/www.heartfoundation.org.au\/your-heart\/info-lote) in a range of languages.\n\n### Looking for information for Aboriginal and\/or Torres Strait Islander people?\n[Her Heart](https:\/\/herheart.org\/) has information about heart health for Aboriginal and Torres Strait Islander people.\n\n[St Vincent's Hospital](https:\/\/www.svhhearthealth.com.au\/aboriginal-heart-health) offers Aboriginal and Torres Strait Islander heart health information.\n\n#### Sources:\nHeart Foundation *[(What is an arrhythmia?)](https:\/\/www.heartfoundation.org.au\/your-heart\/heart-arrhythmia \"What is an arrhythmia?\")*, Victor Chang Cardiac Research Institute *[(Arrhythmia)](https:\/\/www.victorchang.edu.au\/heart-disease\/arrhythmia?gad_source=1 \"Arrhythmia\")*, Canberra Health Services *[(Holter Monitor)](https:\/\/www.canberrahealthservices.act.gov.au\/__data\/assets\/pdf_file\/0020\/2079011\/Holter-monitor.pdf \"Holter Monitor\")*, Heart Foundation *[(What is atrial fibrillation?)](https:\/\/www.heartfoundation.org.au\/Bundles\/Your-heart\/atrial-fibrillation \"What is atrial fibrillation?\")*, SA Health *[(Palpitations – Adult CPC)](https:\/\/www.sahealth.sa.gov.au\/wps\/wcm\/connect\/public+content\/sa+health+internet\/services\/outpatients\/cpc\/specialities\/cardiology\/palpitations+adult+cpc \"Palpitations – Adult CPC\")*, ANZCOR Guidelines *[(Guideline 11.9 – Managing Acute Dysrhythmias)](https:\/\/www.anzcor.org\/home\/adult-advanced-life-support\/guideline-11-9-managing-acute-dysrhythmias\/ \"Guideline 11.9 – Managing Acute Dysrhythmias\")*\n\nLearn more here about the [development and quality assurance of healthdirect content](https:\/\/www.healthdirect.gov.au\/about-our-content).\n\nLast reviewed: July 2024\n\n[Back To Top](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#backToTop)\n\n## Related pages\n- [Brugada syndrome](https:\/\/www.healthdirect.gov.au\/brugada-syndrome \"Brugada syndrome\")\n- [Cardiac ablation](https:\/\/www.healthdirect.gov.au\/cardiac-ablation \"Cardiac ablation\")\n- [Long QT syndrome](https:\/\/www.healthdirect.gov.au\/long-qt-syndrome \"Long QT syndrome\")\n\n## Search our site for\n- [Heart](https:\/\/www.healthdirect.gov.au\/search-results\/Heart \"Search results for: Heart\")\n- [Heart Rate](https:\/\/www.healthdirect.gov.au\/search-results\/Heart%20Rate \"Search results for: Heart Rate\")\n- [Tachycardia](https:\/\/www.healthdirect.gov.au\/search-results\/Tachycardia \"Search results for: Tachycardia\")\n- [Cardioversion](https:\/\/www.healthdirect.gov.au\/search-results\/Cardioversion \"Search results for: Cardioversion\")\n- [Pacemaker](https:\/\/www.healthdirect.gov.au\/search-results\/Pacemaker \"Search results for: Pacemaker\")\n- [Implantable Defibrillators](https:\/\/www.healthdirect.gov.au\/search-results\/Implantable%20Defibrillators \"Search results for: Implantable Defibrillators\")\n- [Palpitations](https:\/\/www.healthdirect.gov.au\/search-results\/Palpitations \"Search results for: Palpitations\")\n\n## Need more information?\nThese trusted information partners have more on this topic.\n\nGeneral search results\n\nResults for medical professionals\n\nTop results\n\n[Arrhythmias - St Vincent's Heart Health Learn more about arrhythmias, the causes, symptoms, possible tests and treatments. *Read more on St Vincent's Hospital Heart Health website* ![St Vincent's Hospital Heart Health](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/svhhh-logo-1e7e03.png)](https:\/\/www.svhhearthealth.com.au\/conditions\/arrhythmias)\n\n[Long QT syndrome - symptoms, causes and treatment Find out about Long QT syndrome, and how an electrical problem in the heart can cause a very fast heart beat and sudden death. *Read more on myDoctor website* ![myDoctor](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/mydoctor-new_logo-1f39cc.png)](https:\/\/mydr.com.au\/heart-stroke\/long-qt-syndrome\/)\n\n[What is an arrhythmia? \\| Heart Foundation Explore the different types of arrhythmia, including tachycardia, bradycardia, and irregular heartbeats. Learn about symptoms, causes, and treatment options. *Read more on Heart Foundation website* ![Heart Foundation](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/heartfoundation-logo-master---rgb-\\(1\\)-cb4909.png)](https:\/\/www.heartfoundation.org.au\/your-heart\/heart-arrhythmia)\n\n[Heart arrhythmias and palpitations \\| Better Health Channel A heart that beats irregularly, too fast or too slow, is experiencing an arrhythmia. *Read more on Better Health Channel website* ![Better Health Channel](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/bhc-rectangle-image-e99950.png)](https:\/\/www.betterhealth.vic.gov.au\/health\/conditionsandtreatments\/heart-arrhythmias-and-palpitations)\n\n[Long QT syndrome \\| Better Health Channel You should be investigated for long QT syndrome if you faint for no apparent reason, during or after exercise or emotional excitement. *Read more on Better Health Channel website* ![Better Health Channel](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/bhc-rectangle-image-e99950.png)](https:\/\/www.betterhealth.vic.gov.au\/health\/conditionsandtreatments\/long-qt-syndrome)\n\n[Arrhythmias (abnormal heart rhythms) Arrhythmia is when you have an abnormal heart rhythm and heart palpitations are an awareness of your heartbeat. *Read more on WA Health website* ![WA Health](https:\/\/media.healthdirect.org.au\/images\/logos\/h40\/department-of-health-logo-colour-a9f371.png)](https:\/\/www.healthywa.wa.gov.au\/Articles\/A_E\/Arrhythmias-abnormal-heart-rhythms)\n\nShow more\n\nTop results\n\nShow more\n\n## Disclaimer\nHealthdirect Australia is not responsible for the content and advertising on the external website you are now entering.\n\n[OK]()\n\n## Related pages\n- [Brugada syndrome](https:\/\/www.healthdirect.gov.au\/brugada-syndrome \"Brugada syndrome\")\n- [Cardiac ablation](https:\/\/www.healthdirect.gov.au\/cardiac-ablation \"Cardiac ablation\")\n- [Long QT syndrome](https:\/\/www.healthdirect.gov.au\/long-qt-syndrome \"Long QT syndrome\")\n\n## Search our site for\n- [Heart](https:\/\/www.healthdirect.gov.au\/search-results\/Heart \"Search results for: Heart\")\n- [Heart Rate](https:\/\/www.healthdirect.gov.au\/search-results\/Heart%20Rate \"Search results for: Heart Rate\")\n- [Tachycardia](https:\/\/www.healthdirect.gov.au\/search-results\/Tachycardia \"Search results for: Tachycardia\")\n- [Cardioversion](https:\/\/www.healthdirect.gov.au\/search-results\/Cardioversion \"Search results for: Cardioversion\")\n- [Pacemaker](https:\/\/www.healthdirect.gov.au\/search-results\/Pacemaker \"Search results for: Pacemaker\")\n- [Implantable Defibrillators](https:\/\/www.healthdirect.gov.au\/search-results\/Implantable%20Defibrillators \"Search results for: Implantable Defibrillators\")\n- [Palpitations](https:\/\/www.healthdirect.gov.au\/search-results\/Palpitations \"Search results for: Palpitations\")\n\n## Symptom checker\n**Worried about your health?**\n\nSelect a symptom, answer some questions, get advice\n\n[Start Your Symptom Check](https:\/\/www.healthdirect.gov.au\/symptom-checker \"Check symptoms\")\n\n[Check your symptoms](https:\/\/www.healthdirect.gov.au\/symptom-checker\/tool?symptom=GNRC) [Find a health service](https:\/\/www.healthdirect.gov.au\/australian-health-services)\n\n# Healthdirect 24hr 7 days a week hotline\n24 hour health advice you can count on\n\n[1800 022 222](tel:1800022222)\n\n# Government Accredited with over 140 information partners\n![Healthdirect logo](https:\/\/www.healthdirect.gov.au\/assets\/images\/logo-hda.svg)\n\nWe are a government-funded service, providing quality, approved health information and advice\n\n[![Australian Government, health department logo](https:\/\/www.healthdirect.gov.au\/assets\/images\/logo-gov-dep-health.svg)](https:\/\/www.health.gov.au\/) [![ACT Government 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We pay our respects to the Traditional Owners and to Elders both past and present.\n\n© 2026 Healthdirect Australia Limited\n\n## Support for this browser is being discontinued\nSupport for this browser is being discontinued for this site\n\n- Internet Explorer 11 and lower\n\nWe currently support Microsoft Edge, Chrome, Firefox and Safari. For more information, please visit the links below:\n\n- [Chrome by Google](https:\/\/www.google.com.au\/chrome\/)\n- [Firefox by Mozilla](https:\/\/www.mozilla.org\/en-US\/firefox\/new)\n- [Microsoft Edge](https:\/\/www.microsoft.com\/en-us\/edge)\n- [Safari by Apple](https:\/\/support.apple.com\/en_AU\/downloads\/safari)\n\nYou are welcome to continue browsing this site with this browser. Some features, tools or interaction may not work correctly.\n\nContinue\n\n![](https:\/\/www.facebook.com\/tr?id=286390378916509&ev=PageView%0A%0A&noscript=1)","attrs_readable_markdown":"## Key facts\n- Heart arrhythmia is when your heart beats abnormally — either too fast, too slow or irregularly.\n- Heart arrhythmias can be caused by a conditions that affect the heart or from excessive alcohol, smoking or drug use.\n- Symptoms can include chest pain, fainting, sweating, shortness of breath and anxiety.\n- Treatment can include medicines, catheter ablation, electrical cardioversion and implantable devices.\n- Complications of heart arrhythmias are heart failure, increased risk of stroke or death.\n\n## On this page\n- [What are heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#what-are)\n- [What are some types of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#types)\n- [What are the symptoms of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#symptoms)\n- [When should I call an ambulance or go to the emergency department?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#ambulance)\n- [What should I do if I don't need emergency healthcare?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#doctor)\n- [What causes heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#causes)\n- [How are heart arrhythmias diagnosed?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#diagnosed)\n- [How are heart arrhythmias treated?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#treated)\n- [What are the complications of heart arrhythmias?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#complications)\n- [Can heart arrhythmias be prevented?](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#prevented)\n- [Resources and support](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#resources)\n- [Related information on Australian websites](https:\/\/www.healthdirect.gov.au\/heart-arrhythmias#searchGeneralResults)\n## What are heart arrhythmias?\nAn arrhythmia is a [heart condition](https:\/\/www.healthdirect.gov.au\/heart-and-cardiovascular-conditions) where your [heart](https:\/\/www.healthdirect.gov.au\/heart) beats abnormally. Your heart may beat [too quickly](https:\/\/www.healthdirect.gov.au\/tachycardia), [too slowly](https:\/\/www.healthdirect.gov.au\/bradycardia), or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats.\n\nArrythmias have a range of outcomes. Some arrhythmias:\n\n- are life-threatening and need urgent treatment\n- can be managed well with support from your doctor\n- are a symptom of an underlying condition that needs treatment\n## What are some types of heart arrhythmias?\nArrhythmias are classified by:\n\n- where the faulty signals come from in your heart\n- how fast your heart rate is\n- whether your heartbeat is irregular or not\n### Ectopic beats\nAn ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless.\n\n### Supraventricular arrhythmias\nSupraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly.\n\nThe most common type is [atrial fibrillation](https:\/\/www.healthdirect.gov.au\/atrial-fibrillation) — when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively.\n\n### Ventricular arrhythmias\nVentricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention.\n\n### Bradyarrhythmia\nBradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow [resting heart rates](https:\/\/www.healthdirect.gov.au\/resting-heart-rate) that don't cause any problems.\n\nPeople who do not experience symptoms with bradycardia usually do not need emergency treatment.\n\n## What are the symptoms of heart arrhythmias?\nIf you have a heart arrhythmia, you may experience:\n\n- [palpitations](https:\/\/www.healthdirect.gov.au\/heart-palpitations) — you may feel your heart is racing, skipping beats or fluttering in your chest\n- [chest pains](https:\/\/www.healthdirect.gov.au\/chest-pain)\n- [fatigue](https:\/\/www.healthdirect.gov.au\/fatigue), [light-headedness](https:\/\/www.healthdirect.gov.au\/lightheadedness) or dizziness\n- [fainting](https:\/\/www.healthdirect.gov.au\/fainting)\n- [shortness of breath](https:\/\/www.healthdirect.gov.au\/shortness-of-breath)\n- sweating\n- [anxiety](https:\/\/www.healthdirect.gov.au\/anxiety)\n\nMany people with heart arrhythmias have no symptoms.\n\n[**CHECK YOUR SYMPTOMS** — Use the **Symptom Checker** and find out if you need to seek medical help.](https:\/\/www.healthdirect.gov.au\/symptom-checker)\n\n## When should I call an ambulance or go to the emergency department?\n**You should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you:**\n\n- feel dizzy or light-headed\n- [faint](https:\/\/www.healthdirect.gov.au\/fainting)\n- feeling [short of breath](https:\/\/www.healthdirect.gov.au\/shortness-of-breath)\n- have [pain in your chest](https:\/\/www.healthdirect.gov.au\/chest-pain)\n## What should I do if I don't need emergency healthcare?\nIf it's not an emergency, see your doctor if you suspect you have a heart arrhythmia.\n\nIt's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor.\n\n## What causes heart arrhythmias?\nHeart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle.\n\nHeart problems that can cause heart arrhythmias include:\n\n- [coronary heart disease](https:\/\/www.healthdirect.gov.au\/coronary-heart-disease-and-atherosclerosis)\n- [abnormal heart valves](https:\/\/www.healthdirect.gov.au\/heart-valve-disease)\n- [cardiomyopathy](https:\/\/www.healthdirect.gov.au\/cardiomyopathy)\n- h[igh blood pressure](https:\/\/www.healthdirect.gov.au\/high-blood-pressure-hypertension)\n\nOther health conditions that can cause heart arrhythmias include:\n\n- [thyroid problems](https:\/\/www.healthdirect.gov.au\/thyroid-problems)\n- obstructive [sleep apnoea](https:\/\/www.healthdirect.gov.au\/obstructive-sleep-apnoea)\n- some medicines\n- genetic conditions — [Brugada syndrome](https:\/\/www.healthdirect.gov.au\/brugada-syndrome), [Long QT syndrome](https:\/\/www.healthdirect.gov.au\/long-qt-syndrome) and [Wolff-Parkinson-White syndrome](https:\/\/www.healthdirect.gov.au\/wolff-parkinson-white-syndrome)\n- living with [overweight or obesity](https:\/\/www.healthdirect.gov.au\/obesity)\n\nLifestyle factors that can increase your risk of developing a heart arrhythmia include:\n\n- [smoking](https:\/\/www.healthdirect.gov.au\/quit-smoking-vaping)\n- [heavy alcohol use](https:\/\/www.healthdirect.gov.au\/how-alcohol-affects-your-health)\n- [drug use](https:\/\/www.healthdirect.gov.au\/Illicit-drug-use)\n## How are heart arrhythmias diagnosed?\nYour doctor may diagnose you with a heart arrhythmia by:\n\n- asking you about your symptoms and [medical history](https:\/\/www.healthdirect.gov.au\/family-medical-history)\n- [examining your body](https:\/\/www.healthdirect.gov.au\/physical-examination-by-a-doctor), including listening to your heart\n- referring you for medical tests to confirm a heart arrhythmia and rule out other conditions\n\nYour doctor may refer you for test such as:\n\n- [ECG](https:\/\/www.healthdirect.gov.au\/electrocardiogram-ecg) (electrocardiogram)\n- [Holter Monitor](https:\/\/www.canberrahealthservices.act.gov.au\/__data\/assets\/pdf_file\/0020\/2079011\/Holter-monitor.pdf) — a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm\n- echocardiogram — an ultrasound procedure where your doctor looks at your heart\n- [chest x-ray](https:\/\/www.healthdirect.gov.au\/x-rays), [blood](https:\/\/www.healthdirect.gov.au\/blood-tests-a-z) or [urine tests](https:\/\/www.healthdirect.gov.au\/urine-tests)\n- a [stress test](http:\/\/www.mydr.com.au\/tests-investigations\/exercise-stress-testing) — measures how well your heart performs during exercise\n- electrophysiology studies — looks at how your heart conducts electrical activity\n- [heart catheterisation](https:\/\/www.healthdirect.gov.au\/cardiac-catheterisation)\n## How are heart arrhythmias treated?\nTreatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include:\n\n- **medicines** — medicines to slow down your heart rate (e.g. [beta-blockers](https:\/\/www.healthdirect.gov.au\/beta-blockers)), normalise your heart rhythm or [blood thinning medicines](https:\/\/www.healthdirect.gov.au\/blood-thinners), if you are at risk of having a [stroke](https:\/\/www.healthdirect.gov.au\/stroke)\n- **electrical cardioversion** — an electric shock to your chest under [general anaesthesia](https:\/\/www.healthdirect.gov.au\/general-anaesthetic) to correct your heart's rhythm\n- **[catheter ablation](https:\/\/www.healthdirect.gov.au\/cardiac-ablation)** — a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm\n- **implantable devices** — [pacemaker](https:\/\/www.healthdirect.gov.au\/pacemaker) or [implantable cardiac defibrillators](https:\/\/www.healthdirect.gov.au\/implantable-cardioverter-defibrillators) (ICD)\n\nYour treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia.\n\nSome heart arrhythmias are harmless and do not need to be treated.\n\n## What are the complications of heart arrhythmias?\nComplications depend on the type of heart arrhythmia and may include:\n\n- [stroke](https:\/\/www.healthdirect.gov.au\/stroke)\n- [heart failure](https:\/\/www.healthdirect.gov.au\/heart-failure)\n- cardiac arrest and sudden death\n## Can heart arrhythmias be prevented?\nSome types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle.\n\nIf you are at least 45 years of age (or 35 if you are Aboriginal and\/or Torres Strait Islander), ask your doctor for a [heart health check](https:\/\/www.healthdirect.gov.au\/should-i-be-tested-for-heart-disease). You should be re-checked every 2 years.\n\nIf you know you have heart problems, it is important to:\n\n- Take your medicines and treatments as prescribed.\n- Be aware of any symptoms and report them to your doctor.\n\nHere are some tips to help reduce your risk of heart disease:\n\n- Maintain a [healthy body weight](https:\/\/www.healthdirect.gov.au\/weight-loss-and-dieting) and [waist circumference](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n- Keep [physically active](https:\/\/www.healthdirect.gov.au\/fitness-and-exercise).\n- Maintain a [healthy, balanced diet](https:\/\/www.healthdirect.gov.au\/healthy-heart-diet).\n- [Quit smoking](https:\/\/www.healthdirect.gov.au\/quit-smoking-vaping).\n- Reduce your [alcohol intake](https:\/\/www.healthdirect.gov.au\/how-alcohol-affects-your-health).\n- Manage your [cholesterol](https:\/\/www.healthdirect.gov.au\/cholesterol), [blood sugar](https:\/\/www.healthdirect.gov.au\/blood-glucose-test) and [blood pressure](https:\/\/www.healthdirect.gov.au\/what-is-a-healthy-blood-pressure) levels.\n- Get enough [sleep](https:\/\/www.healthdirect.gov.au\/sleep).\n\nRead about a [healthy heart diet](https:\/\/www.healthdirect.gov.au\/healthy-heart-diet).\n\nRead about [cardiovascular exercise](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n\nRead about the [physical activity guidelines for older people](https:\/\/www.healthdirect.gov.au\/body-mass-index-bmi-and-waist-circumference).\n\n## Resources and support\n- Learn more about [heart arrhythmias](https:\/\/www.heartfoundation.org.au\/your-heart\/heart-arrhythmia) on the Heart Foundation website.\n- Visit the Heart Foundation webpage for more information about [keeping your heart healthy](https:\/\/www.heartfoundation.org.au\/healthy-living\/keeping-your-heart-healthy).\n- Call healthdirect on [1800 022 222](tel:1800022222) at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice.\n### Do you prefer to read in languages other than English?\nThe Heart Foundation has a selection of [heart health information brochures](https:\/\/www.heartfoundation.org.au\/your-heart\/info-lote) in a range of languages.\n\n### Looking for information for Aboriginal and\/or Torres Strait Islander people?\n[Her Heart](https:\/\/herheart.org\/) has information about heart health for Aboriginal and Torres Strait Islander people.\n\n[St Vincent's Hospital](https:\/\/www.svhhearthealth.com.au\/aboriginal-heart-health) offers Aboriginal and Torres Strait Islander heart health information.","meta_canonical":null}

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URL	https://www.healthdirect.gov.au/heart-arrhythmias
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Meta Title	Heart arrhythmias \| healthdirect
Meta Description	A heart arrhythmia is an irregular heartbeat. Your heart can beat too fast, too slow or irregularly. Learn how to recognise the symptoms here.
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Boilerpipe Text	Key facts 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. Symptoms can include chest pain, fainting, sweating, shortness of breath and anxiety. Treatment can include medicines, catheter ablation, electrical cardioversion and implantable devices. Complications of heart arrhythmias are heart failure, increased risk of stroke or death. On this page What are heart arrhythmias? What are some types of heart arrhythmias? What are the symptoms of heart arrhythmias? When should I call an ambulance or go to the emergency department? What should I do if I don't need emergency healthcare? What causes heart arrhythmias? How are heart arrhythmias diagnosed? How are heart arrhythmias treated? What are the complications of heart arrhythmias? Can heart arrhythmias be prevented? Resources and support Related information on Australian websites What are heart arrhythmias? An arrhythmia is a heart condition where your heart beats abnormally. Your heart may beat too quickly , too slowly , or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats. Arrythmias have a range of outcomes. Some arrhythmias: are life-threatening and need urgent treatment can be managed well with support from your doctor are a symptom of an underlying condition that needs treatment What are some types of heart arrhythmias? Arrhythmias are classified by: where the faulty signals come from in your heart how fast your heart rate is whether your heartbeat is irregular or not Ectopic beats An ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless. Supraventricular arrhythmias Supraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly. The most common type is atrial fibrillation — when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively. Ventricular arrhythmias Ventricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention. Bradyarrhythmia Bradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow resting heart rates that don't cause any problems. People who do not experience symptoms with bradycardia usually do not need emergency treatment. What are the symptoms of heart arrhythmias? If you have a heart arrhythmia, you may experience: palpitations — you may feel your heart is racing, skipping beats or fluttering in your chest chest pains fatigue , light-headedness or dizziness fainting shortness of breath sweating anxiety Many people with heart arrhythmias have no symptoms. CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help. When should I call an ambulance or go to the emergency department? You should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you: feel dizzy or light-headed faint feeling short of breath have pain in your chest What should I do if I don't need emergency healthcare? If it's not an emergency, see your doctor if you suspect you have a heart arrhythmia. It's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor. What causes heart arrhythmias? Heart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle. Heart problems that can cause heart arrhythmias include: coronary heart disease abnormal heart valves cardiomyopathy h igh 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 How are heart arrhythmias diagnosed? Your doctor may diagnose you with a heart arrhythmia by: asking you about your symptoms and medical history examining your body , including listening to your heart referring you for medical tests to confirm a heart arrhythmia and rule out other conditions Your doctor may refer you for test such as: ECG (electrocardiogram) Holter Monitor — a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm echocardiogram — an ultrasound procedure where your doctor looks at your heart chest x-ray , blood or urine tests a stress test — measures how well your heart performs during exercise electrophysiology studies — looks at how your heart conducts electrical activity heart catheterisation How are heart arrhythmias treated? Treatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include: medicines — medicines to slow down your heart rate (e.g. beta-blockers ), normalise your heart rhythm or blood thinning medicines , if you are at risk of having a stroke electrical cardioversion — an electric shock to your chest under general anaesthesia to correct your heart's rhythm catheter ablation — a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm implantable devices — pacemaker or implantable cardiac defibrillators (ICD) Your treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia. Some heart arrhythmias are harmless and do not need to be treated. What are the complications of heart arrhythmias? Complications depend on the type of heart arrhythmia and may include: stroke heart failure cardiac arrest and sudden death Can heart arrhythmias be prevented? Some types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle. If you are at least 45 years of age (or 35 if you are Aboriginal and/or Torres Strait Islander), ask your doctor for a heart health check . You should be re-checked every 2 years. If you know you have heart problems, it is important to: Take your medicines and treatments as prescribed. Be aware of any symptoms and report them to your doctor. Here are some tips to help reduce your risk of heart disease: Maintain a healthy body weight and waist circumference . Keep physically active . Maintain a healthy, balanced diet . Quit smoking . Reduce your alcohol intake . Manage your cholesterol , blood sugar and blood pressure levels. Get enough sleep . Read about a healthy heart diet . Read about cardiovascular exercise . Read about the physical activity guidelines for older people . Resources and support Learn more about heart arrhythmias on the Heart Foundation website. Visit the Heart Foundation webpage for more information about keeping your heart healthy . Call healthdirect on 1800 022 222 at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice. Do you prefer to read in languages other than English? The Heart Foundation has a selection of heart health information brochures in a range of languages. Looking for information for Aboriginal and/or Torres Strait Islander people? Her Heart has information about heart health for Aboriginal and Torres Strait Islander people. St Vincent's Hospital offers Aboriginal and Torres Strait Islander heart health information.
Markdown	[![healthdirect australia logo](https://www.healthdirect.gov.au/assets/images/logo-hda.svg)](https://www.healthdirect.gov.au/) Sign in - [Join](https://www.healthdirect.gov.au/account/join) - [Sign in](https://www.healthdirect.gov.au/account/signin) Menu # Healthdirect Free Australian health advice you can count on. Join Sign in Medical problem? Call 1800 022 222. 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[Medicines](https://www.healthdirect.gov.au/medicines) - [Symptom checker](https://www.healthdirect.gov.au/symptom-checker) - [Service finder](https://www.healthdirect.gov.au/australian-health-services) Menu Close - [Home](https://www.healthdirect.gov.au/) - [Health topics A-Z](https://www.healthdirect.gov.au/heart-arrhythmias) - [Conditions](https://www.healthdirect.gov.au/health-topics/conditions) - [Symptoms](https://www.healthdirect.gov.au/health-topics/symptoms) - [Procedures](https://www.healthdirect.gov.au/health-topics/procedures) - [Life stages](https://www.healthdirect.gov.au/life-stages) - [All topics](https://www.healthdirect.gov.au/health-topics) - [Medicines](https://www.healthdirect.gov.au/medicines) - [Symptom checker](https://www.healthdirect.gov.au/symptom-checker) - [Service finder](https://www.healthdirect.gov.au/australian-health-services) [beginning of content]() # Heart arrhythmias 9-minute read Print Share [share via Facebook](https://www.facebook.com/sharer/sharer.php?u=https://www.healthdirect.gov.au/heart-arrhythmias "Share this page on Facebook") share via Email Save [Listen](https://app-oc.readspeaker.com/cgi-bin/rsent?customerid=8207&lang=en_au&readid=mainContentArticleText&url=https://www.healthdirect.gov.au/heart-arrhythmias "Listen to this page using ReadSpeaker") If your heart is beating in an unusual way and you are concerned, go immediately to your nearest emergency department or call triple zero (000) and ask for an ambulance. ## Key facts - 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. - Symptoms can include chest pain, fainting, sweating, shortness of breath and anxiety. - Treatment can include medicines, catheter ablation, electrical cardioversion and implantable devices. - Complications of heart arrhythmias are heart failure, increased risk of stroke or death. ## On this page - [What are heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#what-are) - [What are some types of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#types) - [What are the symptoms of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#symptoms) - [When should I call an ambulance or go to the emergency department?](https://www.healthdirect.gov.au/heart-arrhythmias#ambulance) - [What should I do if I don't need emergency healthcare?](https://www.healthdirect.gov.au/heart-arrhythmias#doctor) - [What causes heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#causes) - [How are heart arrhythmias diagnosed?](https://www.healthdirect.gov.au/heart-arrhythmias#diagnosed) - [How are heart arrhythmias treated?](https://www.healthdirect.gov.au/heart-arrhythmias#treated) - [What are the complications of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#complications) - [Can heart arrhythmias be prevented?](https://www.healthdirect.gov.au/heart-arrhythmias#prevented) - [Resources and support](https://www.healthdirect.gov.au/heart-arrhythmias#resources) - [Related information on Australian websites](https://www.healthdirect.gov.au/heart-arrhythmias#searchGeneralResults) ## What are heart arrhythmias? An arrhythmia is a [heart condition](https://www.healthdirect.gov.au/heart-and-cardiovascular-conditions) where your [heart](https://www.healthdirect.gov.au/heart) beats abnormally. Your heart may beat [too quickly](https://www.healthdirect.gov.au/tachycardia), [too slowly](https://www.healthdirect.gov.au/bradycardia), or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats. Arrythmias have a range of outcomes. Some arrhythmias: - are life-threatening and need urgent treatment - can be managed well with support from your doctor - are a symptom of an underlying condition that needs treatment ## What are some types of heart arrhythmias? Arrhythmias are classified by: - where the faulty signals come from in your heart - how fast your heart rate is - whether your heartbeat is irregular or not ### Ectopic beats An ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless. ### Supraventricular arrhythmias Supraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly. The most common type is [atrial fibrillation](https://www.healthdirect.gov.au/atrial-fibrillation) — when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively. ### Ventricular arrhythmias Ventricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention. ### Bradyarrhythmia Bradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow [resting heart rates](https://www.healthdirect.gov.au/resting-heart-rate) that don't cause any problems. People who do not experience symptoms with bradycardia usually do not need emergency treatment. ## What are the symptoms of heart arrhythmias? If you have a heart arrhythmia, you may experience: - [palpitations](https://www.healthdirect.gov.au/heart-palpitations) — you may feel your heart is racing, skipping beats or fluttering in your chest - [chest pains](https://www.healthdirect.gov.au/chest-pain) - [fatigue](https://www.healthdirect.gov.au/fatigue), [light-headedness](https://www.healthdirect.gov.au/lightheadedness) or dizziness - [fainting](https://www.healthdirect.gov.au/fainting) - [shortness of breath](https://www.healthdirect.gov.au/shortness-of-breath) - sweating - [anxiety](https://www.healthdirect.gov.au/anxiety) Many people with heart arrhythmias have no symptoms. [CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.](https://www.healthdirect.gov.au/symptom-checker) ## When should I call an ambulance or go to the emergency department? You should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you: - feel dizzy or light-headed - [faint](https://www.healthdirect.gov.au/fainting) - feeling [short of breath](https://www.healthdirect.gov.au/shortness-of-breath) - have [pain in your chest](https://www.healthdirect.gov.au/chest-pain) ## What should I do if I don't need emergency healthcare? If it's not an emergency, see your doctor if you suspect you have a heart arrhythmia. It's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor. ## What causes heart arrhythmias? Heart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle. Heart problems that can cause heart arrhythmias include: - [coronary heart disease](https://www.healthdirect.gov.au/coronary-heart-disease-and-atherosclerosis) - [abnormal heart valves](https://www.healthdirect.gov.au/heart-valve-disease) - [cardiomyopathy](https://www.healthdirect.gov.au/cardiomyopathy) - h[igh blood pressure](https://www.healthdirect.gov.au/high-blood-pressure-hypertension) Other health conditions that can cause heart arrhythmias include: - [thyroid problems](https://www.healthdirect.gov.au/thyroid-problems) - obstructive [sleep apnoea](https://www.healthdirect.gov.au/obstructive-sleep-apnoea) - some medicines - genetic conditions — [Brugada syndrome](https://www.healthdirect.gov.au/brugada-syndrome), [Long QT syndrome](https://www.healthdirect.gov.au/long-qt-syndrome) and [Wolff-Parkinson-White syndrome](https://www.healthdirect.gov.au/wolff-parkinson-white-syndrome) - living with [overweight or obesity](https://www.healthdirect.gov.au/obesity) Lifestyle factors that can increase your risk of developing a heart arrhythmia include: - [smoking](https://www.healthdirect.gov.au/quit-smoking-vaping) - [heavy alcohol use](https://www.healthdirect.gov.au/how-alcohol-affects-your-health) - [drug use](https://www.healthdirect.gov.au/Illicit-drug-use) ## How are heart arrhythmias diagnosed? Your doctor may diagnose you with a heart arrhythmia by: - asking you about your symptoms and [medical history](https://www.healthdirect.gov.au/family-medical-history) - [examining your body](https://www.healthdirect.gov.au/physical-examination-by-a-doctor), including listening to your heart - referring you for medical tests to confirm a heart arrhythmia and rule out other conditions Your doctor may refer you for test such as: - [ECG](https://www.healthdirect.gov.au/electrocardiogram-ecg) (electrocardiogram) - [Holter Monitor](https://www.canberrahealthservices.act.gov.au/__data/assets/pdf_file/0020/2079011/Holter-monitor.pdf) — a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm - echocardiogram — an ultrasound procedure where your doctor looks at your heart - [chest x-ray](https://www.healthdirect.gov.au/x-rays), [blood](https://www.healthdirect.gov.au/blood-tests-a-z) or [urine tests](https://www.healthdirect.gov.au/urine-tests) - a [stress test](http://www.mydr.com.au/tests-investigations/exercise-stress-testing) — measures how well your heart performs during exercise - electrophysiology studies — looks at how your heart conducts electrical activity - [heart catheterisation](https://www.healthdirect.gov.au/cardiac-catheterisation) ## How are heart arrhythmias treated? Treatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include: - medicines — medicines to slow down your heart rate (e.g. [beta-blockers](https://www.healthdirect.gov.au/beta-blockers)), normalise your heart rhythm or [blood thinning medicines](https://www.healthdirect.gov.au/blood-thinners), if you are at risk of having a [stroke](https://www.healthdirect.gov.au/stroke) - electrical cardioversion — an electric shock to your chest under [general anaesthesia](https://www.healthdirect.gov.au/general-anaesthetic) to correct your heart's rhythm - [catheter ablation](https://www.healthdirect.gov.au/cardiac-ablation) — a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm - implantable devices — [pacemaker](https://www.healthdirect.gov.au/pacemaker) or [implantable cardiac defibrillators](https://www.healthdirect.gov.au/implantable-cardioverter-defibrillators) (ICD) Your treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia. Some heart arrhythmias are harmless and do not need to be treated. ## What are the complications of heart arrhythmias? Complications depend on the type of heart arrhythmia and may include: - [stroke](https://www.healthdirect.gov.au/stroke) - [heart failure](https://www.healthdirect.gov.au/heart-failure) - cardiac arrest and sudden death ## Can heart arrhythmias be prevented? Some types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle. If you are at least 45 years of age (or 35 if you are Aboriginal and/or Torres Strait Islander), ask your doctor for a [heart health check](https://www.healthdirect.gov.au/should-i-be-tested-for-heart-disease). You should be re-checked every 2 years. If you know you have heart problems, it is important to: - Take your medicines and treatments as prescribed. - Be aware of any symptoms and report them to your doctor. Here are some tips to help reduce your risk of heart disease: - Maintain a [healthy body weight](https://www.healthdirect.gov.au/weight-loss-and-dieting) and [waist circumference](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). - Keep [physically active](https://www.healthdirect.gov.au/fitness-and-exercise). - Maintain a [healthy, balanced diet](https://www.healthdirect.gov.au/healthy-heart-diet). - [Quit smoking](https://www.healthdirect.gov.au/quit-smoking-vaping). - Reduce your [alcohol intake](https://www.healthdirect.gov.au/how-alcohol-affects-your-health). - Manage your [cholesterol](https://www.healthdirect.gov.au/cholesterol), [blood sugar](https://www.healthdirect.gov.au/blood-glucose-test) and [blood pressure](https://www.healthdirect.gov.au/what-is-a-healthy-blood-pressure) levels. - Get enough [sleep](https://www.healthdirect.gov.au/sleep). Read about a [healthy heart diet](https://www.healthdirect.gov.au/healthy-heart-diet). Read about [cardiovascular exercise](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). Read about the [physical activity guidelines for older people](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). ## Resources and support - Learn more about [heart arrhythmias](https://www.heartfoundation.org.au/your-heart/heart-arrhythmia) on the Heart Foundation website. - Visit the Heart Foundation webpage for more information about [keeping your heart healthy](https://www.heartfoundation.org.au/healthy-living/keeping-your-heart-healthy). - Call healthdirect on [1800 022 222](tel:1800022222) at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice. ### Do you prefer to read in languages other than English? The Heart Foundation has a selection of [heart health information brochures](https://www.heartfoundation.org.au/your-heart/info-lote) in a range of languages. ### Looking for information for Aboriginal and/or Torres Strait Islander people? [Her Heart](https://herheart.org/) has information about heart health for Aboriginal and Torres Strait Islander people. [St Vincent's Hospital](https://www.svhhearthealth.com.au/aboriginal-heart-health) offers Aboriginal and Torres Strait Islander heart health information. #### Sources: Heart Foundation [(What is an arrhythmia?)](https://www.heartfoundation.org.au/your-heart/heart-arrhythmia "What is an arrhythmia?"), Victor Chang Cardiac Research Institute [(Arrhythmia)](https://www.victorchang.edu.au/heart-disease/arrhythmia?gad_source=1 "Arrhythmia"), Canberra Health Services [(Holter Monitor)](https://www.canberrahealthservices.act.gov.au/__data/assets/pdf_file/0020/2079011/Holter-monitor.pdf "Holter Monitor"), Heart Foundation [(What is atrial fibrillation?)](https://www.heartfoundation.org.au/Bundles/Your-heart/atrial-fibrillation "What is atrial fibrillation?"), SA Health [(Palpitations – Adult CPC)](https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/services/outpatients/cpc/specialities/cardiology/palpitations+adult+cpc "Palpitations – Adult CPC"), ANZCOR Guidelines [(Guideline 11.9 – Managing Acute Dysrhythmias)](https://www.anzcor.org/home/adult-advanced-life-support/guideline-11-9-managing-acute-dysrhythmias/ "Guideline 11.9 – Managing Acute Dysrhythmias") Learn more here about the [development and quality assurance of healthdirect content](https://www.healthdirect.gov.au/about-our-content). Last reviewed: July 2024 [Back To Top](https://www.healthdirect.gov.au/heart-arrhythmias#backToTop) ## Related pages - [Brugada syndrome](https://www.healthdirect.gov.au/brugada-syndrome "Brugada syndrome") - [Cardiac ablation](https://www.healthdirect.gov.au/cardiac-ablation "Cardiac ablation") - [Long QT syndrome](https://www.healthdirect.gov.au/long-qt-syndrome "Long QT syndrome") ## Search our site for - [Heart](https://www.healthdirect.gov.au/search-results/Heart "Search results for: Heart") - [Heart Rate](https://www.healthdirect.gov.au/search-results/Heart%20Rate "Search results for: Heart Rate") - [Tachycardia](https://www.healthdirect.gov.au/search-results/Tachycardia "Search results for: Tachycardia") - [Cardioversion](https://www.healthdirect.gov.au/search-results/Cardioversion "Search results for: Cardioversion") - [Pacemaker](https://www.healthdirect.gov.au/search-results/Pacemaker "Search results for: Pacemaker") - [Implantable Defibrillators](https://www.healthdirect.gov.au/search-results/Implantable%20Defibrillators "Search results for: Implantable Defibrillators") - [Palpitations](https://www.healthdirect.gov.au/search-results/Palpitations "Search results for: Palpitations") ## Need more information? These trusted information partners have more on this topic. General search results Results for medical professionals Top results [Arrhythmias - St Vincent's Heart Health Learn more about arrhythmias, the causes, symptoms, possible tests and treatments. Read more on St Vincent's Hospital Heart Health website ![St Vincent's Hospital Heart Health](https://media.healthdirect.org.au/images/logos/h40/svhhh-logo-1e7e03.png)](https://www.svhhearthealth.com.au/conditions/arrhythmias) [Long QT syndrome - symptoms, causes and treatment Find out about Long QT syndrome, and how an electrical problem in the heart can cause a very fast heart beat and sudden death. Read more on myDoctor website ![myDoctor](https://media.healthdirect.org.au/images/logos/h40/mydoctor-new_logo-1f39cc.png)](https://mydr.com.au/heart-stroke/long-qt-syndrome/) [What is an arrhythmia? \\| Heart Foundation Explore the different types of arrhythmia, including tachycardia, bradycardia, and irregular heartbeats. Learn about symptoms, causes, and treatment options. Read more on Heart Foundation website ![Heart Foundation](https://media.healthdirect.org.au/images/logos/h40/heartfoundation-logo-master---rgb-\(1\)-cb4909.png)](https://www.heartfoundation.org.au/your-heart/heart-arrhythmia) [Heart arrhythmias and palpitations \\| Better Health Channel A heart that beats irregularly, too fast or too slow, is experiencing an arrhythmia. Read more on Better Health Channel website ![Better Health Channel](https://media.healthdirect.org.au/images/logos/h40/bhc-rectangle-image-e99950.png)](https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/heart-arrhythmias-and-palpitations) [Long QT syndrome \\| Better Health Channel You should be investigated for long QT syndrome if you faint for no apparent reason, during or after exercise or emotional excitement. Read more on Better Health Channel website ![Better Health Channel](https://media.healthdirect.org.au/images/logos/h40/bhc-rectangle-image-e99950.png)](https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/long-qt-syndrome) [Arrhythmias (abnormal heart rhythms) Arrhythmia is when you have an abnormal heart rhythm and heart palpitations are an awareness of your heartbeat. Read more on WA Health website ![WA Health](https://media.healthdirect.org.au/images/logos/h40/department-of-health-logo-colour-a9f371.png)](https://www.healthywa.wa.gov.au/Articles/A_E/Arrhythmias-abnormal-heart-rhythms) Show more Top results Show more ## Disclaimer Healthdirect Australia is not responsible for the content and advertising on the external website you are now entering. [OK]() ## Related pages - [Brugada syndrome](https://www.healthdirect.gov.au/brugada-syndrome "Brugada syndrome") - [Cardiac ablation](https://www.healthdirect.gov.au/cardiac-ablation "Cardiac ablation") - [Long QT syndrome](https://www.healthdirect.gov.au/long-qt-syndrome "Long QT syndrome") ## Search our site for - [Heart](https://www.healthdirect.gov.au/search-results/Heart "Search results for: Heart") - [Heart Rate](https://www.healthdirect.gov.au/search-results/Heart%20Rate "Search results for: Heart Rate") - [Tachycardia](https://www.healthdirect.gov.au/search-results/Tachycardia "Search results for: Tachycardia") - [Cardioversion](https://www.healthdirect.gov.au/search-results/Cardioversion "Search results for: Cardioversion") - [Pacemaker](https://www.healthdirect.gov.au/search-results/Pacemaker "Search results for: Pacemaker") - [Implantable Defibrillators](https://www.healthdirect.gov.au/search-results/Implantable%20Defibrillators "Search results for: Implantable Defibrillators") - [Palpitations](https://www.healthdirect.gov.au/search-results/Palpitations "Search results for: Palpitations") ## Symptom checker Worried about your health? 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Readable Markdown	## Key facts - 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. - Symptoms can include chest pain, fainting, sweating, shortness of breath and anxiety. - Treatment can include medicines, catheter ablation, electrical cardioversion and implantable devices. - Complications of heart arrhythmias are heart failure, increased risk of stroke or death. ## On this page - [What are heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#what-are) - [What are some types of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#types) - [What are the symptoms of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#symptoms) - [When should I call an ambulance or go to the emergency department?](https://www.healthdirect.gov.au/heart-arrhythmias#ambulance) - [What should I do if I don't need emergency healthcare?](https://www.healthdirect.gov.au/heart-arrhythmias#doctor) - [What causes heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#causes) - [How are heart arrhythmias diagnosed?](https://www.healthdirect.gov.au/heart-arrhythmias#diagnosed) - [How are heart arrhythmias treated?](https://www.healthdirect.gov.au/heart-arrhythmias#treated) - [What are the complications of heart arrhythmias?](https://www.healthdirect.gov.au/heart-arrhythmias#complications) - [Can heart arrhythmias be prevented?](https://www.healthdirect.gov.au/heart-arrhythmias#prevented) - [Resources and support](https://www.healthdirect.gov.au/heart-arrhythmias#resources) - [Related information on Australian websites](https://www.healthdirect.gov.au/heart-arrhythmias#searchGeneralResults) ## What are heart arrhythmias? An arrhythmia is a [heart condition](https://www.healthdirect.gov.au/heart-and-cardiovascular-conditions) where your [heart](https://www.healthdirect.gov.au/heart) beats abnormally. Your heart may beat [too quickly](https://www.healthdirect.gov.au/tachycardia), [too slowly](https://www.healthdirect.gov.au/bradycardia), or irregularly. This usually happens because of a problem with the electrical signals that control how your heart beats. Arrythmias have a range of outcomes. Some arrhythmias: - are life-threatening and need urgent treatment - can be managed well with support from your doctor - are a symptom of an underlying condition that needs treatment ## What are some types of heart arrhythmias? Arrhythmias are classified by: - where the faulty signals come from in your heart - how fast your heart rate is - whether your heartbeat is irregular or not ### Ectopic beats An ectopic heartbeat is when your heart misses a beat or adds an extra beat. You may notice your heart 'skipping' a beat or feel a sudden, extra strong beat. Ectopic beats are common and usually harmless. ### Supraventricular arrhythmias Supraventricular arrhythmias are caused by faulty signals in your atria, the upper chambers of your heart. They usually cause a fast and irregular heartbeat that starts suddenly. The most common type is [atrial fibrillation](https://www.healthdirect.gov.au/atrial-fibrillation) — when the atria 'quiver' instead of beating normally. This stops your heart from pumping blood to your body effectively. ### Ventricular arrhythmias Ventricular arrhythmias are irregular heartbeats caused by faulty signals in the lower part of the heart, in your ventricles. These are serious and require immediate medical attention. ### Bradyarrhythmia Bradyarrhythmia (also known as bradycardia) is when your heart beats less than 60 times per minute. Some people, such as young, fit people, may have slow [resting heart rates](https://www.healthdirect.gov.au/resting-heart-rate) that don't cause any problems. People who do not experience symptoms with bradycardia usually do not need emergency treatment. ## What are the symptoms of heart arrhythmias? If you have a heart arrhythmia, you may experience: - [palpitations](https://www.healthdirect.gov.au/heart-palpitations) — you may feel your heart is racing, skipping beats or fluttering in your chest - [chest pains](https://www.healthdirect.gov.au/chest-pain) - [fatigue](https://www.healthdirect.gov.au/fatigue), [light-headedness](https://www.healthdirect.gov.au/lightheadedness) or dizziness - [fainting](https://www.healthdirect.gov.au/fainting) - [shortness of breath](https://www.healthdirect.gov.au/shortness-of-breath) - sweating - [anxiety](https://www.healthdirect.gov.au/anxiety) Many people with heart arrhythmias have no symptoms. [CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.](https://www.healthdirect.gov.au/symptom-checker) ## When should I call an ambulance or go to the emergency department? You should call triple zero (000) and ask for an ambulance if you feel your heart is beating in an unusual way and you: - feel dizzy or light-headed - [faint](https://www.healthdirect.gov.au/fainting) - feeling [short of breath](https://www.healthdirect.gov.au/shortness-of-breath) - have [pain in your chest](https://www.healthdirect.gov.au/chest-pain) ## What should I do if I don't need emergency healthcare? If it's not an emergency, see your doctor if you suspect you have a heart arrhythmia. It's normal not to notice your heartbeat, so if you feel that your heart is beating irregularly, too fast or too slowly, you should see your doctor. ## What causes heart arrhythmias? Heart arrhythmias can be caused by heart conditions, general health conditions or your lifestyle. Heart problems that can cause heart arrhythmias include: - [coronary heart disease](https://www.healthdirect.gov.au/coronary-heart-disease-and-atherosclerosis) - [abnormal heart valves](https://www.healthdirect.gov.au/heart-valve-disease) - [cardiomyopathy](https://www.healthdirect.gov.au/cardiomyopathy) - h[igh blood pressure](https://www.healthdirect.gov.au/high-blood-pressure-hypertension) Other health conditions that can cause heart arrhythmias include: - [thyroid problems](https://www.healthdirect.gov.au/thyroid-problems) - obstructive [sleep apnoea](https://www.healthdirect.gov.au/obstructive-sleep-apnoea) - some medicines - genetic conditions — [Brugada syndrome](https://www.healthdirect.gov.au/brugada-syndrome), [Long QT syndrome](https://www.healthdirect.gov.au/long-qt-syndrome) and [Wolff-Parkinson-White syndrome](https://www.healthdirect.gov.au/wolff-parkinson-white-syndrome) - living with [overweight or obesity](https://www.healthdirect.gov.au/obesity) Lifestyle factors that can increase your risk of developing a heart arrhythmia include: - [smoking](https://www.healthdirect.gov.au/quit-smoking-vaping) - [heavy alcohol use](https://www.healthdirect.gov.au/how-alcohol-affects-your-health) - [drug use](https://www.healthdirect.gov.au/Illicit-drug-use) ## How are heart arrhythmias diagnosed? Your doctor may diagnose you with a heart arrhythmia by: - asking you about your symptoms and [medical history](https://www.healthdirect.gov.au/family-medical-history) - [examining your body](https://www.healthdirect.gov.au/physical-examination-by-a-doctor), including listening to your heart - referring you for medical tests to confirm a heart arrhythmia and rule out other conditions Your doctor may refer you for test such as: - [ECG](https://www.healthdirect.gov.au/electrocardiogram-ecg) (electrocardiogram) - [Holter Monitor](https://www.canberrahealthservices.act.gov.au/__data/assets/pdf_file/0020/2079011/Holter-monitor.pdf) — a portable device that you wear for 24 hours or longer to continuously monitor your heart rhythm - echocardiogram — an ultrasound procedure where your doctor looks at your heart - [chest x-ray](https://www.healthdirect.gov.au/x-rays), [blood](https://www.healthdirect.gov.au/blood-tests-a-z) or [urine tests](https://www.healthdirect.gov.au/urine-tests) - a [stress test](http://www.mydr.com.au/tests-investigations/exercise-stress-testing) — measures how well your heart performs during exercise - electrophysiology studies — looks at how your heart conducts electrical activity - [heart catheterisation](https://www.healthdirect.gov.au/cardiac-catheterisation) ## How are heart arrhythmias treated? Treatment for heart arrhythmia depends on the type of arrhythmia, how it is affecting your health and your medical history. Treatment may include: - medicines — medicines to slow down your heart rate (e.g. [beta-blockers](https://www.healthdirect.gov.au/beta-blockers)), normalise your heart rhythm or [blood thinning medicines](https://www.healthdirect.gov.au/blood-thinners), if you are at risk of having a [stroke](https://www.healthdirect.gov.au/stroke) - electrical cardioversion — an electric shock to your chest under [general anaesthesia](https://www.healthdirect.gov.au/general-anaesthetic) to correct your heart's rhythm - [catheter ablation](https://www.healthdirect.gov.au/cardiac-ablation) — a procedure where your doctor targets the area in your heart causing the abnormal heart rhythm - implantable devices — [pacemaker](https://www.healthdirect.gov.au/pacemaker) or [implantable cardiac defibrillators](https://www.healthdirect.gov.au/implantable-cardioverter-defibrillators) (ICD) Your treatment may aim to re-establish a normal heart rhythm or minimise the risk of complications, depending on your situation. Your doctor will also consider treatment of any medical conditions that are contributing to your heart arrhythmia. Some heart arrhythmias are harmless and do not need to be treated. ## What are the complications of heart arrhythmias? Complications depend on the type of heart arrhythmia and may include: - [stroke](https://www.healthdirect.gov.au/stroke) - [heart failure](https://www.healthdirect.gov.au/heart-failure) - cardiac arrest and sudden death ## Can heart arrhythmias be prevented? Some types of heart arrhythmias can't be prevented, but you can reduce your chance of developing others by living a heart-healthy lifestyle. If you are at least 45 years of age (or 35 if you are Aboriginal and/or Torres Strait Islander), ask your doctor for a [heart health check](https://www.healthdirect.gov.au/should-i-be-tested-for-heart-disease). You should be re-checked every 2 years. If you know you have heart problems, it is important to: - Take your medicines and treatments as prescribed. - Be aware of any symptoms and report them to your doctor. Here are some tips to help reduce your risk of heart disease: - Maintain a [healthy body weight](https://www.healthdirect.gov.au/weight-loss-and-dieting) and [waist circumference](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). - Keep [physically active](https://www.healthdirect.gov.au/fitness-and-exercise). - Maintain a [healthy, balanced diet](https://www.healthdirect.gov.au/healthy-heart-diet). - [Quit smoking](https://www.healthdirect.gov.au/quit-smoking-vaping). - Reduce your [alcohol intake](https://www.healthdirect.gov.au/how-alcohol-affects-your-health). - Manage your [cholesterol](https://www.healthdirect.gov.au/cholesterol), [blood sugar](https://www.healthdirect.gov.au/blood-glucose-test) and [blood pressure](https://www.healthdirect.gov.au/what-is-a-healthy-blood-pressure) levels. - Get enough [sleep](https://www.healthdirect.gov.au/sleep). Read about a [healthy heart diet](https://www.healthdirect.gov.au/healthy-heart-diet). Read about [cardiovascular exercise](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). Read about the [physical activity guidelines for older people](https://www.healthdirect.gov.au/body-mass-index-bmi-and-waist-circumference). ## Resources and support - Learn more about [heart arrhythmias](https://www.heartfoundation.org.au/your-heart/heart-arrhythmia) on the Heart Foundation website. - Visit the Heart Foundation webpage for more information about [keeping your heart healthy](https://www.heartfoundation.org.au/healthy-living/keeping-your-heart-healthy). - Call healthdirect on [1800 022 222](tel:1800022222) at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice. ### Do you prefer to read in languages other than English? The Heart Foundation has a selection of [heart health information brochures](https://www.heartfoundation.org.au/your-heart/info-lote) in a range of languages. ### Looking for information for Aboriginal and/or Torres Strait Islander people? [Her Heart](https://herheart.org/) has information about heart health for Aboriginal and Torres Strait Islander people. [St Vincent's Hospital](https://www.svhhearthealth.com.au/aboriginal-heart-health) offers Aboriginal and Torres Strait Islander heart health information.
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