Understanding AFib(Atrial Fibrillation)
AFib is a common heart rhythm condition that can affect how your heart beats. Learning the basics can help you recognize symptoms and understand possible care options.
Understanding atrial fibrillation
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AFib (atrial fibrillation) is an irregular heartbeat that can make your heart race, flutter, or feel out of rhythm. It happens when the upper chambers of the heart don't beat in sync with the lower chambers.
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Understanding AFib helps you recognize symptoms early and talk to your doctor about the right care for you.
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With the right information and support, many people with AFib can manage the condition and live full, active lives.
Symptoms
Symptoms to know
Palpitations
A feeling that your heart is racing, fluttering, pounding, or skipping beats. Many people notice this in their chest or throat.
Fatigue
Unusual tiredness or lack of energy, even without heavy activity. AFib can make the heart less efficient, which may cause fatigue.
Shortness of breath
Difficulty breathing or feeling winded during normal activities or at rest. This can happen when the heart rhythm is irregular.
Dizziness
Feeling lightheaded, unsteady, or like you might faint. Irregular heart rhythm can affect blood flow to the brain.
Chest discomfort
Pressure, tightness, or mild pain in the chest. Not everyone with AFib has this; when present, it should be discussed with a doctor.
Weakness
Reduced strength or feeling physically weak. Sometimes people notice this during or after an episode of irregular heartbeat.
Understanding your care options
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Lifestyle changes—such as staying active, eating heart-healthy foods, and managing stress—can help support your heart rhythm and overall health. Your care team can suggest steps that fit your life.
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Medications may be used to control heart rate or rhythm, prevent blood clots, or treat other conditions. Your doctor will explain the options and what to expect.
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Procedures or interventions may be recommended when needed. These can include cardioversion, ablation, or other approaches, all explained clearly so you can make informed decisions with your doctor.
Frequently Asked Questions (FAQ)
Clear answers about AFib—what it is, what to expect, and how it can be managed. If you need more information, your doctor or care team can help.
Contact usAFib is an irregular heartbeat that can make your heart race, flutter, or feel out of rhythm. It happens when the upper chambers of the heart don't beat in sync with the lower chambers. Many people with AFib can manage it well with the right care and lifestyle.
Common symptoms include palpitations (racing or fluttering heart), fatigue, shortness of breath, dizziness, chest discomfort, and weakness. Some people have no obvious symptoms. If you notice any of these, it's important to talk to your doctor.
A doctor may use your symptoms, a physical exam, and tests such as an electrocardiogram (ECG or EKG) or a heart monitor to detect an irregular rhythm. Sometimes AFib is found during a routine check-up even when you have no symptoms.
Treatment can include lifestyle changes (e.g. activity, diet, stress management), medications to control rate or rhythm or to prevent blood clots, and sometimes procedures such as cardioversion or ablation. Your doctor will recommend options based on your situation.
See a doctor if you have new or lasting palpitations, unexplained fatigue, shortness of breath, dizziness, or chest discomfort. If you have severe chest pain or trouble breathing, seek emergency care.
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What is AFib?
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