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Atrial Fibrillation (AFib)

Most common arrhythmia; irregular ventricular rate; stroke risk requires anticoagulation.

Key Information

  • Prevalence: 1-2% of general population; 5% >65 years
  • Cardiovascular condition requiring medical evaluation
  • Multiple evidence-based treatments available
  • Early diagnosis improves outcomes

About Atrial Fibrillation (AFib)

Most common arrhythmia; irregular ventricular rate; stroke risk requires anticoagulation.

For comprehensive information about symptoms, diagnosis, and treatment options, consult with a cardiologist or your healthcare provider.

Frequently asked

Common questions about Atrial Fibrillation (AFib).

Quick, plain-English answers to what people ask us most.

  • What is atrial Fibrillation (AFib)?

    Atrial Fibrillation (AFib) is a recognised medical condition that can affect people in different ways, ranging from mild and easily managed to more significant, depending on the underlying cause, how early it is picked up, and how it is treated. Getting a clear diagnosis is usually the first step towards the right management plan.

  • What causes atrial Fibrillation (AFib)?

    Atrial Fibrillation (AFib) can arise from a combination of factors, which may include genetics, lifestyle, environmental exposures, other underlying health conditions, or simply the normal effects of ageing on the body. In many cases no single cause is found, and several factors act together. A clinician can help identify which factors are most relevant in an individual case.

  • What are the symptoms of atrial Fibrillation (AFib)?

    Symptoms of atrial Fibrillation (AFib) vary from person to person and depend on how severe the condition is and which structures are affected. Some people notice symptoms gradually over weeks or months, while others experience a more sudden onset. Because symptoms can overlap with other conditions, a proper assessment is important to reach an accurate diagnosis rather than relying on symptoms alone.

  • Is atrial Fibrillation (AFib) serious or dangerous?

    Most cases of atrial Fibrillation (AFib) are manageable, especially when identified and treated early, but severity varies from mild and self-limiting to more significant, depending on individual circumstances. Left unassessed, some cases can lead to complications or a longer-term impact on daily life. If you are worried about your symptoms, it is always worth getting them checked rather than waiting.

  • Is atrial Fibrillation (AFib) hereditary or genetic?

    Some cases of atrial Fibrillation (AFib) have a genetic component and can run in families, while others occur without any family history at all. Having a relative with the condition may modestly increase your own risk, but it does not mean you will definitely develop it yourself. If you are concerned about a family history, mention this to your doctor, as it may occasionally influence screening or monitoring.

  • Can atrial Fibrillation (AFib) be cured, reversed or prevented?

    Outlook varies with atrial Fibrillation (AFib): some cases resolve completely with treatment, others improve significantly but need ongoing management, and a smaller number become a long-term condition to be controlled rather than cured. Prevention strategies, such as addressing modifiable risk factors, can reduce your chances of developing it or of it recurring, but cannot guarantee against it in every case.

  • How is atrial Fibrillation (AFib) treated?

    Treatment for atrial Fibrillation (AFib) is tailored to the individual and depends on severity, underlying cause and personal circumstances. Options can range from simple lifestyle measures, monitoring and conservative treatment through to medication, specialist procedures or surgery in more significant cases. A specialist assessment helps identify which combination of treatments is most appropriate for you.

  • How long does atrial Fibrillation (AFib) last?

    The duration of atrial Fibrillation (AFib) varies considerably: some people recover within days or weeks, while others live with a more persistent or recurring condition that needs ongoing management. Response to treatment, how early it is started, and individual factors all influence the timescale. Your clinician can give you a more personalised estimate once your specific circumstances are known.

  • When is surgery needed for atrial Fibrillation (AFib)?

    Surgery is not usually the first option for atrial Fibrillation (AFib) and is generally reserved for cases where conservative treatment has not worked, symptoms are severe, or there is a significant structural problem that needs to be corrected directly. The decision depends on your specific findings, symptoms and how they are affecting your life. A specialist consultation is the best way to establish whether surgery is being considered too early, or should be considered sooner rather than later.

  • When should I see a doctor about atrial Fibrillation (AFib), and how quickly can I be seen privately?

    It is worth seeing a doctor about atrial Fibrillation (AFib) if symptoms are persistent, getting worse, or affecting your daily life, rather than waiting to see if they settle on their own. NHS routine referrals to a specialist can currently take anywhere from around 20 to 45 weeks or more depending on your area, whereas a private consultant can typically see you within about 2 weeks. Getting an earlier assessment can help clarify the diagnosis and start the right treatment sooner.