What is an Implantable Cardiac Monitor?
An implantable cardiac monitor (ICM), also known as a loop recorder, is a small, matchstick-sized device placed just beneath the skin of the chest. It continuously records the heart's electrical activity over months or even years, capturing rare or infrequent arrhythmias that other short-term tests may miss. The device wirelessly transmits data to your care team for remote review and analysis.
Who Needs an Implantable Cardiac Monitor?
An ICM is recommended for patients experiencing symptoms that suggest an underlying heart rhythm problem but have not been captured on standard tests. Common indications include:
Unexplained fainting (syncope)
Recurrent dizziness or lightheadedness
Unexplained heart palpitations
Cryptogenic (unexplained) stroke
Suspected but undetected AFib
Monitoring after a cardiac event
How is it Placed?
The implantation procedure is simple, quick, and performed in an outpatient setting. Here is what to expect:
1
A small area on the chest is numbed using local anesthesia — no general anesthesia required.
2
A tiny incision is made and the monitor is gently inserted just beneath the skin.
3
The incision is closed and the procedure is complete in under 15 minutes.
4
The device begins recording immediately and transmits data wirelessly to your care team.
Key Benefits
Long-Term Monitoring
Records continuously for up to 3 years, capturing infrequent events
Wireless Transmission
Automatically sends data to your doctor without office visits
Minimally Invasive
No stitches needed, quick recovery, outpatient procedure
Discreet & Comfortable
Tiny device, barely visible under skin, no lifestyle restrictions
Frequently Asked Questions
Will the monitor affect my daily activities?
No. The device is completely internal and does not interfere with exercise, showering, sleeping, or most daily activities.
Is it MRI compatible?
Most modern implantable cardiac monitors are MRI-conditional. Your doctor will confirm compatibility for your specific device.
How long does the battery last?
Depending on the device model, the battery can last anywhere from 2 to 4 years of continuous monitoring.
How is the device removed?
Once monitoring is complete or a diagnosis is made, the device is easily removed in a brief outpatient procedure similar to how it was placed.
Take Control of Your Heart Rhythm Today
Speak with our heart rhythm specialists to find out if an implantable cardiac monitor is the right solution for you.
Living with an Implantable Cardiac Monitor
Living with an ICM is easy and unobtrusive. The device is discreet under the skin, rarely noticed by patients in daily life. It does not require charging or manual operation. You may be given a small handheld activator to mark a symptom episode when it occurs, which helps your care team correlate symptoms with recorded rhythms. Most patients forget the device is there while it silently protects and monitors their heart 24 hours a day.
