Holter Monitoring Test

What is a Holter monitoring test?

A Holter monitoring test is a non-invasive diagnostic test. In general, it uses a portable device called a Holter monitor to continuously record your heart's electrical activity for 24 – 48 hours. Depending on your condition and Holter device, your doctor may also recommend using the device for up to 1 week.

This monitoring period differs from an electrocardiogram (ECG), which only records the heart's electrical activity for a short period.


Why do you need a Holter monitoring test?

Your doctor may recommend a Holter monitoring test to:

  • Detect transient (temporary) rhythm disorders of the heart. The test allows your doctor to correlate symptoms such as palpitations (fast, strong, or irregular heartbeats, fainting and dizziness spells to your heart rhythm.
  • Monitor the electrical activity of your heart during normal activity or after a heart attack.
  • Diagnose any abnormal heart rhythm (including serious arrhythmias).
  • Determine the success of a heart procedure.
  • Monitor the effect of new heart medicine.

What are the risks and complications of a Holter monitoring test?

There is no significant risk from wearing a Holter monitor. You may feel some discomfort from wearing the device continuously or skin irritation where the electrodes are attached.

Why choose Gleneagles Hospital?

Established in Singapore for more than 60 years, Gleneagles Hospital provides trusted care for all our patients. Our team of cardiologists works closely with multidisciplinary specialists to provide thorough care for your heart condition.

We specialise in various heart screening methods, including Holter monitoring tests, to detect and treat heart conditions early. Recover in extensive, modern facilities and experience seamless care all under one roof.

Our cardiologists

At Gleneagles Hospital, we offer a comprehensive heart and vascular programme through our team of heart specialists. Treat your heart condition holistically with expert help from our specialists.

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