Atrial Fibrillation (AFib) – the Silent but Deadly Epidemic

Article AF awareness
Medically reviewed by Dr Reginald LiewSpeak with Dr Reginald LiewSenior Consultant Cardiologist · The Harley Street Heart & Vascular CentreDr Liew’s clinical interests include heart rhythm disorders, including atrial fibrillation, and cardiac device implantation. Arrange an assessment to discuss your symptoms and options.Request a consultationView Dr Liew’s profile · Last reviewed August 2026

Key Facts

  • AFib is a higher risk for older people, other heart diseases such as heart failure, high blood pressure and diabetes.
  • Important lifestyle factors can also increase the risk of developing AFib.
  • Treatment of AFib includes blood thinners in those at higher risk of developing blood clots and strokes.

By Dr Reginald Liew

AFib is the most common heart rhythm problem. Most people haven’t heard of the condition until their diagnosis. AFib causes the top chambers of the heart (called the atria) to beat irregularly. This can lead to symptoms such as palpitations, fatigue, breathlessness and light-headedness. Some people do not have any symptoms at all which is what makes the condition so dangerous. If untreated, AFib can increase the risk of stroke and heart failure.

AFib is a higher risk for older people, other heart diseases such as heart failure, high blood pressure and diabetes. Important lifestyle factors can also increase the risk of developing AFib. Increasing excessive alcohol intake, sleep-apnoea and obesity increases the risk. AFib is the silent epidemic with the rate of AFib increasing in line with the rise in these other related conditions worldwide. It is important that people with symptoms or cardiac/ lifestyle risk factors for AFib have a medical check-up. The diagnosis and correct management of AFib can be life-saving.

Treatment of AFib includes blood thinners in those at higher risk of developing blood clots and strokes. Others take medication to control the arrhythmia. A catheter ablation can treat the condition for those not keen on taking long-term medication or who develop side effects. Expert help and guidance can help manage this complex heart rhythm problem.

Concerned about your heart rhythm?

Book an assessment with a cardiologist at The Harley Street Heart & Vascular Centre.

Farrer Park · Novena · Napier Road · Mount Elizabeth

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Emergency: call 995. Seek emergency care immediately for chest pain, fainting, or sudden severe breathlessness. In Singapore, dial 995 for an ambulance.

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Concerned about your heart rhythm?

Book an assessment with a cardiologist at The Harley Street Heart & Vascular Centre.

Farrer Park · Novena · Napier Road · Mount Elizabeth

Medically reviewed by Dr Reginald Liew, Senior Consultant Cardiologist, The Harley Street Heart & Vascular Centre. This article is for general education and is not a substitute for medical advice.