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Hand holding LUX-Dx Insertable Cardiac Monitor System from Boston Scientific

Cardiac Monitor

Whether you’re just starting to research heart monitors or you already have the LUX-Dx™ Insertable Cardiac Monitor (ICM) and want to learn more, explore the sections below to find answers to your questions.

Looking for a healthcare professional? Find a specialist in your area.

Already implanted with LUX-Dx?

Already inserted with a cardiac monitor device? Go to the device support page for more information.

Know your rhythms

If you’ve been experiencing symptoms like fainting, palpitation, or shortness of breath, your health care team may recommend heart monitoring. Heart monitors are often used to check for irregular heart rhythms to help your health care team provide the best care for your condition. 

Boston Scientific’s LUX-Dx Insertable Cardiac Monitor System

Types of heart monitors 

There are several types of devices that can monitor your health data and heart rhythms including wearables, Holter monitors, and smart watches. The LUX-Dx™ ICM System is inserted just under your skin to provide long term, continuous monitoring over multiple years.

Get to know your device

The LUX-Dx ICM is a small electronic device placed just under your skin. It automatically monitors and records information about your heart rhythms for your doctor. 

Understanding the procedure

If your doctor has recommended the LUX-Dx ICM System, the procedure is quick and easy. Learn more about what to expect in the steps below.

Step 1

Your health care team will start by numbing the area where the device will be inserted with local anesthesia.

Step 2

Your doctor will make a small incision. Usually, the incision is on the left side of the chest. But your doctor will determine the best place for the incision.

Step 3

After making the incision, your doctor will insert the ICM device under your skin.

Step 3

Finally, your doctor will close the incision.

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On the way to wellness

Recovery from your procedure should not prevent you from returning to an active lifestyle. Be sure to ask your health care team what activity level is recommended for you and follow all their post-procedure instructions. Learn more about what to expect from the ICM procedure and recovery. 

Resources for you

Find a heart specialist near you

More support

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Already have a cardiac monitor?

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Learn more about Boston Scientific

Device Quality and Reliability

It is Boston Scientific’s intent to provide implantable devices of high quality and reliability. However, these devices may exhibit malfunctions that may result in lost or compromised ability to deliver therapy. Refer to Boston Scientific’s CRM product performance report on for more information about device performance, including the types and rates of malfunctions that these devices have experienced historically. While historical data may not be predictive of future device performance, such data can provide important context for understanding the overall reliability of these types of products. Also, it is important that you talk with your doctor about the risks and benefits associated with the implantation of a device.


myLUX ™ Patient App and Insertable Cardiac Monitor System
Important Information

The ICM system consists of the following: Insertable Cardiac Monitor (“ICM device”); Magnet; and myLUX patient app (“app”). The myLUX ™ Patient App is for use with a BSC Insertable Cardiac Monitor (ICM) system which is a small device designed to monitor and record your heart rhythm once it has been placed under your skin. This information is shared via an automatic transmission to the clinic and your doctor for medical evaluation. The ICM and app are not intended to assist with medical emergencies; this means that it doesn’t provide any treatment to the potential rhythms that could be recorded. Your myLUX™ Patient App is designed to work only with the ICM that your doctor has prescribed and implanted in you.

The ICM system does not treat cardiac arrhythmias (abnormal heartbeats that are too fast, too slow, or irregular), but rather it collects information for your health care provider to use to support their medical evaluation of your symptoms or condition. The ICM device’s monitoring of your heart will not cause any noticeable sensations. Your ICM system is set up to automatically collect data stored on your ICM device and send it to your clinic to review according to the schedule your healthcare provider has set up. Your health care provider may also ask you to manually transmit data, however additional instruction will be provided if you need to do this as it should only be done on a limited basis.

Electromagnetic fields are created by devices which use electricity, including those which are plugged into a wall outlet or battery operated. Devices which emit strong electromagnetic fields may have the potential to temporarily interfere with your ICM device’s ability to detect and monitor your heart rhythm. They could also delay or prolong communication between your ICM device and your myLUX ™ Patient app.

The magnet when provided with the ICM system may cause interference with devices sensitive to magnetic fields such as hearing aids, pacemakers, and other implanted devices. It can also permanently disable some magnetic strip cards.

Ask your health care provider if you have questions about any risks with using the myLUX ™ App, the magnet or your ICM device.

Please refer to the Patient Handbook for the full warnings, precautions and important safety information.

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