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Ambulatory electrocardiogram

Holter monitor heart test

An electrocardiogram monitor measures and records your heart's rate and rhythm for a period of 24 hours to seven days

About

This safe and painless test is done for various symptoms such as irregular or fast heart rates, palpitations, dizziness and fainting spells. It can also provide information on the effectiveness of medication and treatments.

Need to know

  • What happens icon plus

    You'll need to wear a medical device called a Holter monitor continuously for a period of 24 hours, 48 hours or seven days. You'll have three electrodes stuck on your chest with small sticky pads and attached to wires. These wires are connected to the monitor, which is about the size of a matchbox and worn around your waist or on a cord that hangs around your neck. It captures every single electrical impulse in your heart while it's worn. If you need to have a bath or shower, you simply remove the monitor and pads then replace them after. You'll be asked to complete a diary telling us if you have any symptoms such as palpitations or dizziness.
  • How to prepare icon plus

    You won't need to prepare for this test. Your consultant will explain how the test works and answer any questions you may have.
  • Afterwards icon plus

    Your consultant will analyse the results of your recording and let you know any next steps.

Our facilities

From complex surgery to straightforward procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics. 

  • London Bridge Hospital Facility

    London Bridge Hospital

    27 Tooley Street

    London

    SE1 2PR

    Appointments and Enquiries 020 7234 2009
    Imaging Appointments 020 7234 2773
    Switchboard 020 7407 3100

  • facility-HSC-flag-hero-582x582

    The Harley Street Clinic

    35 Weymouth Street

    London

    W1G 8BJ

    Appointments 020 7034 8181
    Enquiries 020 3131 7962

  • Wellington-south-hero-facility-582-582

    The Wellington Hospital

    Wellington Place

    London NW8 9LE

    Appointments 0207 483 5148
    Enquiries 020 3131 7478

  • The Lister Hospital Facility

    The Lister Hospital

    Chelsea Bridge Road

    London

    SW1W 8RH

    Appointments 020 7811 4000
    Enquiries 020 3131 4978

Request an appointment

We're happy to help you make an appointment with one of our experienced consultants.

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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