Anti-theft systems, also called electronic article surveillance (EAS) and metal detectors —Interactions with EAS systems and metal detectors are unlikely to cause clinically significant symptoms in most patients. However, the American Heart Association recommends that you:
Be aware that EAS systems may be hidden/camouflaged in entrances and exits in many commercial establishments.
Don't stay near the EAS system or metal detector longer than is necessary and don't lean against the system.
If scanning with a hand-held metal detector is necessary, warn the security personnel that you have an electronic medical device and ask them not to hold the metal detector near the device any longer than is absolutely necessary. You could also ask for an alternative form of personal search.