A Prospective Pediatric Clinical Trial of Digital Music Players: Do They Interfere with Pacemakers?

Christine C. Chiu, M.Sc.; June Huh, M.D., Ph.D.; Laura De Souza, B.Sc.; Armando Alfaro-Ramirez, M.D.; Robin Clegg, M.D.; Laura Fenwick, B.Sc.; Robert M. Hamilton, M.D., M.H.Sc.; Joel A. Kirsh, M.D.; Gil J. Gross, M.D.; Dongsheng Gao, Ph.D.; Elizabeth A. Stephenson, M.D., M.Sc.


J Cardiovasc Electrophysiol. 2009;20(1):44-49. 

In This Article

Study Limitations

The study design tested an artificial environment in which the programmer wand was placed at a fixed distance adjacent to the DMP being tested. Having a DMP in close proximity to the programmer wand while it is positioned over an implanted pacemaker or ICD may interfere with the telemetry signal being received by the programmer. The high-rate counter is not updated during a telemetry session until the telemetry is terminated or interrupted, hence limiting the amount of information that we can obtain during this study.[7] In some cases, it was not possible to determine if the telemetry interference or loss of telemetry was related to interference by the DMP or to the suboptimal alignment of the programmer wand. This study tested only a select group of iPod™ and MP3 players, and results cannot be extended across all existing DMP on the market. We do not have enough ICD patients in our study to draw any definitive conclusions about interference on ICD function, but it would not be expected to differ markedly from pacemaker function.


Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.
Post as: