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Sick Sinus Syndrome

Medically reviewed by Last updated on Jun 5, 2024.

What is sick sinus syndrome?

Sick sinus syndrome is a heart rhythm disorder. Your heart's rhythm (heartbeat) is controlled by a part of the heart called the sinus node. A normal rhythm is generally between 60 and 100 beats per minute. If the sinus node does not work properly, your heart may beat too slowly or too quickly. It may go back and forth from too slow to too fast. You may have pauses in between beats. Each of these rhythm problems may cause certain signs and symptoms.

Heart Chambers

What are the symptoms I might have?

You may have only mild symptoms at first. Symptoms may come and go, or be present all the time. The following are common symptoms:

How is sick sinus syndrome diagnosed?

Your healthcare provider will ask about your symptoms and when they started. He or she will ask what triggers your symptoms and if they get worse with exercise. Tell him or her if you have a heart condition or take any medicines. You may also need any of the following:

How is sick sinus syndrome treated?

Treatment may not be needed if your symptoms do not cause problems in your daily life. You may need any of the following if symptoms do cause problems:

What can I do to manage sick sinus syndrome?

Call your local emergency number (911 in the US) if:

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.