Shielding Your Pacemaker from Phone Signals, Electrical Lines
In the digital age, it's common for people to carry mobile devices close to their bodies. However, for those with pacemakers or implantable cardioverter defibrillators (ICDs), maintaining a safe distance from these devices is crucial.
According to Dr. Wilkoff, a renowned cardiologist, walking, running, biking, or otherwise crossing under power lines is safe, as long as it's done for a reasonable duration. However, he advises against lingering under power lines for too long, as it might unnecessarily increase the risk.
When it comes to mobile devices, the risk of electromagnetic interference (EMI) is still a concern. A study conducted on three common smartphones (HTC One XL, Nokia Lumia, and Samsung Galaxy 3) placed directly over the implant site of cardiac devices revealed that even though technology has advanced, there is still a potential for disruption.
The U.S. Food and Drug Administration previously recommended keeping mobile devices at least 6 inches (about 15 cm) away from cardiac devices due to potential disruption. This recommendation is echoed by several clinical sources. Dr. Wilkoff also suggests that placing a phone in a shirt or jacket pocket on the same side as a pacemaker or ICD should be avoided to eliminate all risk.
Magnets in devices like the Apple Watch and Fitbits are another mild threat to those with pacemakers, according to Dr. Wilkoff. While the risk may be lower with newer phone and device technologies, it is not zero, and therefore the 6-inch guideline persists as a safe practice.
It's important to note that strong electromagnetic fields emitted by mobile phones can potentially interfere with the function of pacemakers and ICDs. This interference can cause irregular heartbeats, which could be harmful.
While the risk of any environmental interference is minimal for the vast majority of people with pacemakers or ICDs, according to Dr. Wilkoff, it's better to err on the side of caution. A second European study found that high-voltage power lines and substations are unlikely to cause problems for pacemakers and ICDs, as long as they're programmed normally.
In summary, keeping mobile phones at least 6 inches away from pacemakers and ICDs under normal use remains prudent to avoid electromagnetic interference and ensure device integrity and patient safety. While smartphone disruptions are not common, they are still possible, and the potential risks are not worth taking.
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