Implantable loop recorders are small heart rhythm recording devices that are implanted under the chest wall next to the breast bone. They are usually done to record abnormal heart rhythms that cannot be caught on external wearable recorders due to low frequency of occurrence. ILRs can be useful for patients who experience symptoms such as syncope (fainting), seizures, recurrent palpitations, lightheadedness, or dizziness. Battery lives for these devices are 2-3 years giving ample time for diagnosis. It is done as a same day procedure under local anesthesia and sedation.