About bradycardia
Healthy adults usually have a heart rate between 60 and 100 beats per minute (BPM) during normal activities. Less than 60 BPM may be considered abnormally slow. You may have a slow heart rate if you're very fit or relaxed, on certain medications or have an underactive thyroid. It can also signify a problem with your heart's electrical impulses and cause symptoms like fatigue or dizziness.
Need to know
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What are the symptoms of bradycardia? icon plus
Bradycardia may not cause symptoms, but if your heart rate is seriously low, your heart won't be able to pump oxygen-rich blood throughout your body effectively.
If your brain or organs become oxygen-deprived, you may experience symptoms like:- fainting or blackouts (syncope)
- chest pains
- shortness of breath
- weakness or fatigue
- confusion or memory loss
- tiring quickly or an inability to exert yourself
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Diagnosing bradycardia icon plus
Your GP or consultant will speak to you about your symptoms. If they suspect you have bradycardia, diagnostic tests may include:
- an electrocardiogram (ECG) to measure the electrical activity of your heart
- an echocardiogram to visualise the chambers of your heart
- wearing a device called a Holter monitor to track your heart's rhythm over time
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Potential treatment options icon plus
If you're diagnosed with an abnormally low heart rate, your treatment will depend on the cause and severity of your condition. Your consultant will work with you to determine the best treatment options and may suggest lifestyle changes to improve your condition.
This may mean stopping or changing some medications or making certain lifestyle changes. If your bradycardia is related to an underlying condition, such as hypothyroidism or a congenital disease, your treatment will usually focus on managing that condition.
In some cases, especially if the cause is an abnormality of the heart’s electrical system, you may need to have a pacemaker fitted.
Types of bradycardia (bradyarrhythmias)
Sick sinus syndrome
Sick sinus syndrome is a condition where the heart's natural pacemaker, the sinoatrial node, doesn't work as it should.
Heart block
Heart block is an abnormal heart rhythm caused by a problem with the electrical signals that tell your heart when to beat.
Our cardiologists
Bradycardia is diagnosed and managed by a cardiologist specialising in heart rhythm disorders.Once diagnosed your cardiologist will discuss ongoing care and potential treatment options.
Our facilities
From complex cardiothoracic surgery to tests and diagnostics procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.
Request an appointment
Our booking teams can help you make an appointment with one of our experienced consultants.
020 7079 4344
This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.