Recent studies have shown that having a robust magnet nearby might hamper the functioning of the device normally by switching it into the ‘magnet mode’ until the magnet is removed far away from the device.
The use of a magnet inhibits discharge by a pacemaker or an implantable cardioverter-defibrillator (ICD). It doesn’t, however, inhibit pacing. In some devices, the application of a magnet produces a soft beep for every QRS complex.
If the magnet is left on for about 30 seconds, the ICD is disabled and an endless tone is generated. Many implants have a “magnet mode” in order that they are often safely operated during medical procedures, like MRI scans.
Doctors typically activate these features by placing a high-strength magnet near the implant. Removing the magnetic flux restores the normal operation of the medical device.
The FDA said patients with implanted medical devices should take these precautions:
Keep cell phones and smartwatches six inches far away from implanted medical devices, especially heart defibrillators.
Do not carry these electronic devices in a pocket over the medical implant.
Check your device employing a home monitoring system if you’ve got one. Consult your doctor if you’re having any symptoms or have questions on magnets in consumer electronics and implanted medical devices.
When near high strength magnets, devices with a magnetic safe mode could pack up or change how the device works. For instance, a cardiac defibrillator could also be unable to detect tachycardia events. Or it’s going to change the operational mode of the devices like turning on asynchronous mode during a pacemaker.
The implanted devices are wont to maintain a traditional rhythm of the guts and aid cardiac rhythm disorders, like having high pulses (tachycardia) or slow heart rate (bradycardia). If the device stops working, a patient could get dizzy, lose consciousness or maybe die, the FDA warned.
They also conducted their own testing on some products that use the high field intensity magnet feature and have confirmed the magnetic flux is both according to the publications and powerful enough to show on the magnetic safety mode of the medical devices in question. The FDA believes the danger to patients is low, and therefore the agency isn’t conscious of any adverse events related to this issue at this point.