From the Research
A patient with an implantable loop recorder can undergo a mammogram safely, as long as the mammography technician is informed about the implanted device and takes appropriate precautions. Before the procedure, patients should notify the technician about their ILR so that positioning can be adjusted to avoid direct compression of the device, which is typically implanted subcutaneously in the left parasternal region or sometimes in the inframammary area 1. The mammography equipment produces X-rays, which do not typically interfere with modern loop recorders' functionality. However, there is a small possibility that the pressure from mammogram compression plates could cause minor discomfort at the implant site or potentially trigger recordings of non-cardiac events.
Some key points to consider:
- The implantable loop recorder is a leadless rectangular device used for prolonged electrocardiographic monitoring for up to 3 years 1.
- Mammography equipment produces X-rays, which are unlikely to interfere with the functionality of modern loop recorders 1.
- Patients should monitor for any unusual symptoms after the mammogram and inform their cardiologist about having had the procedure so that any unusual recordings during that timeframe can be appropriately interpreted.
- Most manufacturers of loop recorders confirm that mammography is safe with their devices, but checking the specific device manufacturer's guidelines is always prudent 1.
It is essential to prioritize the patient's safety and take necessary precautions to avoid any potential complications. The most recent study on this topic, published in 2024, provides guidance on the safety of mammography in patients with implantable loop recorders 1.