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Cardiac Loop Recorder Insertion

Medically reviewed by Last updated on Jan 5, 2023.

A cardiac loop recorder is a device that continuously records your heart rhythm. It is also called an insertable cardiac monitor or implantable loop recorder. It is a small device, about the size of a USB memory stick. It is implanted in your left chest area, just under the skin. The device records patterns of your heart's rhythm, called an EKG.


Call, or have someone call, your local emergency number (911 in the US) if:

  • You lose consciousness.

Call your cardiologist if:

  • You feel weak, dizzy, or faint.
  • You have a fever or chills.
  • Your implant site is red, swollen, or draining pus.
  • You have questions or concerns about your condition or care.

Implant site care:

Carefully wash your incision with soap and water. Keep the area clean and dry until it heals.

Return to activity:

Most people can return to normal activities soon after the procedure. Your cardiologist may want to know if your work involves electrical current or high-voltage equipment. Ask about other electrical items that could interfere with your cardiac loop recorder.

Follow up with your cardiologist as directed:

You will need to return in 1 to 2 weeks. Your cardiologist will check your incision. He or she may also program your device settings again. He or she will retrieve data from the device every 1 to 3 months with a monitor held over your skin. You may be able to transmit data from your device over the phone. You will do this by calling a number provided by your cardiologist. Ask for information about this process. Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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