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Sick sinus syndrome

• Overview
• Symptoms
• Treatment
• Prevention

Alternative Names:

Bradycardia-tachycardia syndrome; Sinus node dysfunction

Treatment:

If the disorder is not causing symptoms, treatment may not be necessary. Your doctor may evaluate any medications you are taking to make sure they are not worsening your condition. Do not stop taking any medication unless instructed by your doctor.

A permanent implanted pacemaker may be necessary when it has been established that the symptoms are related to bradycardia (slow heart rate).

Any associated tachycardia (a fast heart rate) may be treated with medications. The person will be protected from symptomatic bradycardia by a permanent implanted pacemaker. Sometimes a catheter procedure called radiofrequency ablation is used to eliminate tachycardias.

Expectations (prognosis):

This syndrome is slowly progressive. As long as the person remains without symptoms, no treatment is necessary. If a permanent pacemaker is implanted, the long-term outlook is excellent.

Complications:

• Inadequate heart pumping
• Heart failure
• Falls or injury caused by fainting
• Angina

Calling your health care provider:

Call for an appointment with your health care provider if you experience spells of light-headedness, episodes of fainting, palpitations, or other symptoms.

• Review Date: 11/6/2006
• Reviewed By: Glenn Gandelman, MD, MPH, Assistant Clinical Professor of Medicine, New York Medical College, Valhalla, NY. Review provided by VeriMed Healthcare Network.

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