Atrial flutter
Informed by recognized medical guidance
Overview
Atrial flutter is a type of irregular heartbeat. In this condition, the upper chambers of your heart (the atria) beat very fast, but in a regular pattern. This can make your heart work less efficiently and can increase the risk of stroke.
Key facts
- Atrial flutter makes the upper heart chambers beat fast but regularly.
- It can increase the risk of stroke if not treated.
- Treatment often helps control the heart rate and rhythm, and reduces the chance of complications.
Atrial flutter is less common than atrial fibrillation, but it still affects many people, especially older adults and those with underlying heart conditions.
Atrial flutter most often affects older adults, people with heart disease, high blood pressure, or lung disease. It can also occur in younger people who have certain heart problems or drink large amounts of alcohol.
Symptoms
- Chest pain, pressure, or tightness that does not go away
- Sudden shortness of breath that makes it hard to speak
- Fainting or nearly fainting
- Sudden weakness on one side of the body (possible stroke)
- ⚠New or worsening palpitations that last a long time
- ⚠Dizziness that stops you from standing
- ⚠Chest discomfort that is mild but different from normal
- ⚠Worsening shortness of breath with activity
Common symptoms
- Palpitations (a feeling of a fast or fluttering heartbeat)
- Shortness of breath
- Dizziness or lightheadedness
- Fatigue or weakness
- Chest discomfort or tightness
Symptoms in children
- Rapid heartbeat that may be noticeable
- Irritability or fussiness
- Trouble feeding or poor growth
- Pale skin or sweating
Symptoms in older adults
- Fatigue that is worse than usual
- Confusion or feeling 'off'
- Falls or unsteadiness
- Less obvious palpitations (may not notice fast heartbeat)
Causes
Main causes
- Abnormal electrical signals in the heart that cause the upper chambers to beat too fast
- Damage to the heart from coronary artery disease, heart valve problems, or previous heart surgery
- High blood pressure that strains the heart over time
Risk factors
- Age 65 and older
- Heart conditions such as heart failure or previous heart attack
- Lung diseases like chronic obstructive pulmonary disease (COPD)
- Heavy alcohol use or binge drinking
- Thyroid disease (especially an overactive thyroid)
- Obesity
- Sleep apnea
When to see a doctor
See a doctor urgently if:
- You have new chest pain, severe shortness of breath, or fainting
- You have symptoms of a stroke, such as sudden numbness or trouble speaking
Book a routine appointment if:
- You notice a fast or irregular heartbeat that comes and goes
- You feel tired or dizzy without a clear reason
- You have been diagnosed with atrial flutter and have questions or need a check-up
Diagnosis
Your healthcare provider will ask about your symptoms and medical history, listen to your heart, and order tests to see the electrical activity of your heart.
Tests that may be done
- Electrocardiogram (ECG) – a quick, painless test that records your heart's electrical signals
- Holter monitor – a portable ECG device you wear for 24 hours or longer to catch irregular rhythms
- Event recorder – you wear it for weeks and press a button when you feel symptoms
- Echocardiogram (ultrasound of the heart) to check heart structure and function
- Blood tests to look for thyroid problems or other causes
What to expect at your appointment
You will likely have some of these tests in a clinic or hospital. Most are painless and done while you rest. Your healthcare provider may ask you to keep a symptom diary. Results often take a few days, and you will discuss them with your doctor.
Treatment
Treatment for atrial flutter aims to control the heart rate, restore a normal rhythm, and prevent blood clots that can cause strokes. Your healthcare provider will choose a plan based on your overall health and symptoms.
Self-care at home
- Avoid things that can trigger your symptoms, such as too much alcohol, caffeine, or stress
- Keep a record of your symptoms and share it with your provider
- Take all medications exactly as prescribed
- Learn to check your own pulse so you can notice changes
Medical treatments
Medicines may be used to slow the heart rate or to help keep the rhythm normal. Blood-thinning medicines (anticoagulants) help prevent strokes. A procedure called cardioversion uses a short electrical shock to reset the heartbeat to normal. For some people, a catheter ablation (a procedure that destroys the tiny area causing the abnormal signal) can provide a long-term cure.
When is surgery considered?
Surgery is rarely needed for atrial flutter. In some cases, if other treatments do not work or a patient needs open-heart surgery for another reason, a surgeon may perform a maze procedure to create scars that block abnormal electrical signals.
Living with this condition
Most people with atrial flutter can manage their symptoms well and continue normal activities. It is important to follow your treatment plan and have regular check-ups to monitor your condition.
Lifestyle tips
- Stay active but listen to your body – if you feel dizzy or very tired, rest
- Limit or avoid alcohol, caffeine, and nicotine
- Manage stress with relaxation techniques like deep breathing or meditation
- Get enough sleep and try to maintain a healthy weight
Diet and exercise
Eat a heart-healthy diet rich in fruits, vegetables, whole grains, and lean protein. Avoid large, heavy meals that can trigger symptoms. Regular, moderate exercise (like walking or swimming) is good for your heart, but check with your healthcare provider before starting a new exercise program.
Mental health and emotional wellbeing
Living with a heart condition can cause anxiety, fear, or sadness. It is normal to worry about your health. If you feel overwhelmed, talk to your healthcare provider or a mental health professional. Remember, you are not alone, and help is available. If you have thoughts of harming yourself, call a crisis helpline or your local emergency number immediately.
Prevention
It may not always be possible to prevent atrial flutter, but you can lower your risk by managing health conditions like high blood pressure, heart disease, and diabetes. Avoiding excessive alcohol and staying physically active also help.
Screening programmes
Routine screening for atrial flutter is not recommended for everyone. However, if you have symptoms or are at high risk, your healthcare provider may suggest regular check-ups with an ECG.
Complications
If left untreated
- Stroke – blood clots can form in the heart and travel to the brain
- Heart failure – the heart may become too weak to pump enough blood
- Worsening of other heart problems
Long-term outlook
With proper treatment, most people with atrial flutter can control their symptoms and lower the risk of complications like stroke. Many people lead full, active lives. Following your treatment plan and staying in touch with your healthcare team are key to a good outlook.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 16, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.