What is an ILR?
It is a small device that contains a battery and electronic circuits. ILR’s are offered to and implanted in patients who have symptoms or possible symptoms that could be the result of an arrythmia in the heart.
The ILR is implanted under the skin on the chest, it records an ECG which allows it to monitor the heart rate and heart rhythm.
The device is a monitor only so cannot treat symptoms. It works by constantly recording and deleting on a loop.
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Author Joanne Lawson
Leaflet PL/1458
Review Date 01/09/2026
