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  • Q&A with Australian Health Practitioners

    What is an event recorder and how does it differ to a Holter monitor?

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    Dr Jason Kaplan

    Cardiologist (Heart Specialist)

    Dr. Jason Kaplan is a specialist adult cardiologist and physician. Dr. Kaplan studied Medicine at UNSW and graduated with Honours in 1999 then completed his … View Profile

    An event recorder is usually only a two league ECG channel device that is much more useful for people who have very infrequent episodes of cardiac arrhythmias. A Holter monitor is usually a device that is worn for 24-48 hours and usually consists of five dots on a person’s chest, and takes readings for a continuous period of 24-48 of the person’s heart rhythm as they carry on a day to day basis. The downside of a Holter monitor is that if the person does not have symptoms in that time the Holter monitor won’t pick it up. With an event monitor, people can usually carry them around in their bags or keep them nearby. So when they get an event they will usually take the event monitor out fairly quickly. Some event monitors just consist of a hand-held device placed onto the chest, which allow people to record surface ECG tracing and capture the events. An event recorder is usually a lot more useful for people who only get symptoms infrequently for example, once every few weeks. For people getting daily or second daily symptoms, a Holter monitor is a more useful test.

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