Is Your Car’s Electric Motor a Shock to Your Heart? Interview with:
Dr. med. Carsten Lennerz, M.Sc.

Deutsches Herzzentrum München
München What is the background for this study? What are the main findings?

Response: Knowing that strong electric motors cause electromagnetic fields (EM) and  that CIED (Cardiac implanted electronic devices) may malfunction due to electromagnetic fields raises serious concerns when electric cars are considered. Moreover the use of electric cars for private and public transport is increasing and thus the question of safety is becoming more and more important.

108 CIED patients drove and charged 4 commercially available e-cars on a roller bench test (simulating road driving in a safe environment). There were no adverse events and no electromagnetic interference was detected during driving or charging of the cars. What should readers take away from your report?

Response: Currently there are no data to suggest that restrictions for CIED patients are necessary when driving or charging an electric car. What recommendations do you have for future research as a result of this work?

Response: Ongoing vigilance should be maintained especially with rapidly changing technology (especially for


Electric Cars and Electromagnetic Interference With Cardiac Implantable Devices: A Cross-sectional Evaluation

 Published: Ann Intern Med. 2018.

DOI: 10.7326/M17-2930

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Last Updated on April 27, 2018 by Marie Benz MD FAAD