The Holter monitor records the electrical activity of every heartbeat on an ECG (Electrocardiogram) during normal daily activities and through the night. This allows us to continuously record the electrical activity of the heart, and compare it to any symptoms you may experience.
Why is a Holter monitor performed?
A Holter monitor provides useful information in a number of situations. It allows us to compare the heart rhythm with your symptoms (or how you are feeling). It also allows us to record important changes in heart rhythm that you may not be aware of, but which might benefit from treatment. Finally, it allows us to check on the responses to some medications, pacemakers or the results of some treatments (e.g. ablation procedures).
How is a Holter monitor performed?
A cardiac technician will attach 5 small paper electrodes to the skin of the lower chest after gently cleaning the skin and on occasion removing excessive chest hair. These electrodes are connected by cables to a small, light, battery powered recorder (see picture) kept in a pouch. You will need to allow about 15 mins plus any waiting time to have a Holter Monitor fitted.
Are there any directions I need to follow for a Holter monitor?
Yes. You cannot take a bath or shower with a monitor on, since it is not waterproof. However, you can wear normal clothes on top of it, and you should perform all your other activities as usual. You do not need to fast prior to a Holter monitor.
You should record any symptoms you feel while the monitor is on by pressing the EVENT BUTTON on the monitor, shown to you by the technician.
How do I find out what the Holter monitor shows?
Our technical staff analyse the Holter recording which is then reviewed by one of our cardiologists. This may take some days. Your cardiologist will arrange either a follow-up appointment or give you the results directly after that time.
Are there any risks associated with a Holter Monitor?
The only known risk may be mild skin irritation from the electrodes.
