Sick sinus syndrome

Sinus node dysfunction or SINO-ATRIAL DISEASE

Sick sinus syndrome is a condition where the heart's natural pacemaker, the sinoatrial node, doesn't work as it should

About sick sinus syndrome

Sick sinus syndrome or sino-atrial disease is a heart rhythm disorder often associated with electrical abnormalities in the atria, the heart’s upper chambers. It can cause heartbeats that are too fast (tachycardia) or too slow (bradycardia). It may be aggravated by certain medicines.

Need to know

  • Symptoms of sick sinus syndrome icon plus

    You may not have any symptoms with this condition. But symptoms may include:

    • chest pain
    • palpitations
    • breathlessness
    • fainting or blackouts
    • a slower than normal pulse
    • fatigue
  • Diagnosis icon plus

    Your consultant will discuss your symptoms with you and any tests that you may need to have to confirm a diagnosis. These tests may include:

    • an electrocardiogram (ECG) to measure the electrical activity of your heart
    • an exercise ECG while you're walking on a treadmill
    • a Holter monitor test to track your heart's rhythm over time
    • an event recorder that samples your heart rate
    • an implantable loop recorder to record your heart''s rhythm for up to three years
    • an echocardiogram, which is an ultrasound of your heart
  • Potential treatment options icon plus

    You may not need treatment for sick sinus syndrome if you don't have any symptoms. If you do have symptoms, your consultant will discuss your treatment options with you. Different treatment options include a pacemaker, a change of medicine and taking blood thinning medication.

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This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
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