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Electrocardiogram (ECG) Services is a part of the Cardiac Physiology Department. It carries out a range of diagnostic tests, on both adults and children, which diagnostic and prognostic evaluation for various medical conditions.

We are committed to providing an efficient service to all our patients.

Non-invasive investigations

ECG (Electrocardiogram)

ECG is a recording of the electrical activity of the heart. Six electrodes are placed on the chest and one electrode on each arm and leg. The electrical activity produced by the heart is received and recorded onto a chart. A trained cardiographer performs the procedure, which takes about ten minutes. The results help the patient’s doctor to determine the rate and rhythm of the heart and also to diagnose other conditions.

Ambulatory ECG monitoring

Ambulatory monitoring manually records the electrical activity of the heart over a period of about 20 minutes.

A number of electrodes (depending on the device used) are placed on the chest and connected to a recording device. The patient can carry on as normal.

The patient’s doctor can determine the rate and rhythm of the heart over the period of the recording. It can help with the diagnosis of various medical conditions and show how effective a treatment is.

24 Hour ECG Holter Monitoring

This is a continuous recording of the electrical activity of the heart, performed on people suspected of having an irregular heartbeat. The test helps the patient’s doctor choose the correct treatment.

What is involved if you have the test?

  • Please allow 30 minutes for your appointment.
  • Disposable electrodes will be attached to your chest. These are connected to a lightweight recorder and your heartbeat will be recorded, usually for 24 hours.
  • During this time you can carry on as normal, but you will be given a diary to record any symptoms you have during the recording period. If you are a child your parent or guardian will keep a diary for you.
  • We advise you not to bath or shower whilst wearing the recorder.
  • You will be expected to return the recorder to the department the following day.
  • The results of the test will be sent you your consultant. If you wish to see them your consultant or GP can arrange this for you.