Definition
Ambulatory ECG (Holter) Monitor is a small, portable electrocardiographic device that you wear during your normal daily activities, including sleep. It provides a round-the-clock recording of your heart rhythm.

What are the benefits of Holter monitoring?
This is a non-invasive outpatient tool which provides excellent evaluation for patients with palpitations or irregular heart rhythms occurring sporadically and are thus difficult to detect with a conventional ECG (electrocardiogram) in the clinic.
Your doctor will use this test to:

Example of Atrial Fibrillation (most common irregular heart rhythm) picked up on a Holter tracing in a patient complaining of intermittent palpitations.
Who will benefit from this test?
Patients with symptoms of
How is the test performed?

How to prepare for the test
More information
Don't wait for your symptoms to worsen.
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