Recent Blog Articles

Heart beat: PDAs okay for pacemakers, but zip for the Zapper

March 09, 2014

Heart beat

PDAs okay for pacemakers, but zip the Zapper

During the early days of cellphone use, a flurry of reports raised the possibility that these now-ubiquitous devices could interfere with pacemakers or implanted cardioverter/defibrillators (ICDs). That didn’t pan out. As long as you don’t keep your cellphone in a breast pocket right next to your pacemaker or defibrillator, it is safe to use.

What about wireless personal digital assistants (PDAs) such as a Palm Pilot, BlackBerry, or similar device that can be used for e-mail or accessing the Internet? Mayo Clinic researchers checked the effects of a popular PDA connected to a wireless local area network on 13 pacemakers and ICDs. They saw no interference, even when the pacemaker or ICD was in the most sensitive setting and the PDA was at maximum power and right next to the heart device.

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».


As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.