Headphones Affects Heart D.evices

Headphones from iPods or other digital music players may damage hearing, but music lovers who have a pacemaker or an implanted defibrillator are better off keeping them in their ears.

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A small, new study revealed that placing the ubiquitous ear buds or other headphones too close to the chest could interfere with the proper functioning of the devices used to keep hearts beating at their proper rhythm.

Patients should not place the headphones, which contain magnets, in shirt pockets or drape them over their chest, lest they risk havoc with their heart-rhythm devices, researchers said on Sunday.

Pacemakers treat slow heart rhythms, while implantable cardioverter defibrillators (ICDs) jolt dangerously racing hearts back into a normal rhythm.

“For patients with pacemakers, exposure to the headphones can force the device to deliver signals to the heart causing it to beat without regard to the patients’ underlying heart rhythm,” said William Maisel of Beth Israel Medical Center in Boston and the study’s lead investigator.

Exposure of ICDs to magnets in headphones may deactivate them, causing the device to stop looking for abnormal heart rhythms, Maisel explained.

Results of the 60-patient study were presented at the American Heart Association scientific meeting in New Orleans. Researchers tested eight different models of MP3 player headphone with iPods. They found a detectable interference with the heart devices in 14 patients — 30% of ICD patients and 15%of the pacemaker patients.

Sources: The Times Of India

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