Sick sinus syndrome (patient information)
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Sick sinus syndrome |
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Sick sinus syndrome On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]
Overview
Sick sinus syndrome is a collection of heart rhythm disorders that include:
- Sinus bradycardia -- slow heart rates from the natural pacemaker of the heart
- Sinus pauses or arrest -- when the natural pacemaker of the heart stops working for periods of time
People with these disorders may also have other abnormal heart rhythms, such as:
- Atrial tachycardia -- fast heart rate that starts in the upper chambers of the heart (atria)
- Bradycardia-tachycardia -- alternating slow and fast heart rhythms
What are the symptoms of Sick sinus syndrome?
Usually, no symptoms occur. Symptoms that do occur are may mimic those of other disorders.
Symptoms may include:
- Chest pain or angina
- Confusion or other changes in mental status
- Fainting or near-fainting
- Fatigue
- Dizziness or light-headedness
- Sensation of feeling the heart beat (palpitations)
- Shortness of breath, possibly only with activity
What causes Sick sinus syndrome?
Sick sinus syndrome usually occurs in people older than 50. The cause is often scar-like damage to the heart's conduction system. In children, a common cause of sick sinus syndrome is heart surgery, especially on the upper chambers. Coronary artery disease, high blood pressure, and aortic and mitral valve diseases may occur with sick sinus syndrome, although these diseases may have nothing to do with the syndrome. Sick sinus syndrome is uncommon.
Who is at highest risk?
Diagnosis
Medical history
Physical exam
Testing
When to seek urgent medical care?
Treatment options
Where to find medical care for Sick sinus syndrome?
Directions to Hospitals Treating Sick sinus syndrome