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What is an Implantable Loop Recorder?

An implantable loop recorder is a small electrical device that is able to continuously record the heart activity. It is often used to help find a cause for recurrent unexplained syncope when there is a strong suspicion of a heart rhythm cause but all other simple tests have been normal. It can also be used to monitor patient’s heart rhythm after atrial fibrillation ablation procedures.

The implantable loop recorder comes in many different sizes is generally about the size of a computer USB and sits underneath the skin. There are no wires to the heart. It allows continuous recording of the heart’s activity so that we can diagnose arrhythmias.



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Melbourne Heart Rhythm has an international reputation as one of the centers of excellence in cardiac arrhythmia research in Australasia and the world.

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Our friendly team are committed to providing excellence in patient care. They are all well qualified and knowledgeable about patients and their cardiac conditions.

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To learn about common arrhythmias and our cardiac procedures, visit  our Cardiovascular Library for more information.

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About Us


Melbourne Heart Rhythm is the arrhythmia service at the Department of Cardiology at the Royal Melbourne Hospital. We are comprised of a team of highly trained and dedicated health care professionals specializing in heart rhythm management. We have a strong focus on patient education and patient centered care. Our arrhythmia specialists have an international reputation of excellence in arrhythmia research and clinical arrhythmia management.