About heart block
Degrees of heart block
First-degree heart block
Second-degree heart block
Third-degree heart block
Need to know
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What are the symptoms of heart block? icon plus
Depending on the level of heart block you have, you may not experience any symptoms. Some people always have heart block, but in others the condition can come and go. Symptoms can include:
- dizziness
- fainting (syncope)
- feeling like your heart skips a beat
- shortness of breath
- fatigue
- irregular heartbeat
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Diagnosing heart block icon plus
Heart block may be diagnosed during routine tests for other conditions. The main test used to diagnose heart block is an electrocardiogram (ECG), which measures the electrical activity of your heart.
Other diagnostic tests may include a Holter monitor test, where you'll wear an ECG device continuously over a period of time to track your heart's rhythm; and/or an implantable loop recorder, which is a small device that's placed underneath the skin in your chest and records your heart rhythm for up to three years.
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Potential treatment options icon plus
Some levels of heart block do not need treatment. Your treatment options depend on the level of heart block you have and on your symptoms. For second or third-degree heart block, you may need to have a pacemaker fitted.
Your consultant may also make changes to any medicine that you're taking. Your consultant will let you know your treatment options and help to determine the best approach for you.
Our locations
From complex cardiac surgery to tests and diagnostic procedures, we provide exceptional cardiac care across our network of hospitals, outpatient centres and specialist clinics.
Request an appointment
We're happy to help you make an appointment with one of our experienced consultants.