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Cardiovascular

In-vivo testing of digital cellular telephones in patients with implantable cardioverter-defibrillators.

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Chiladakis JA, Davlouros P, Agelopoulos G, Manolis AS. · 2001

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Digital cell phones don't interfere with implantable defibrillators during normal use, though minor effects occurred near programming equipment.

Plain English Summary

Summary written for general audiences

Researchers tested digital cell phones (GSM and DCS 1800) on 36 patients with implantable cardioverter-defibrillators (ICDs) to see if the phones would interfere with these life-saving heart devices. While the phones caused some minor sensing errors when held very close to programming equipment, they did not damage the devices, trigger inappropriate shocks, or prevent proper pacing. The study concluded that digital cell phones pose no significant risk to patients with these specific ICD models.

Why This Matters

This study addresses a critical safety concern for the millions of people worldwide who depend on implantable cardioverter-defibrillators to prevent sudden cardiac death. The reality is that electromagnetic interference from everyday devices can potentially disrupt these life-saving implants, making this research directly relevant to public health. What this means for you is reassuring: the study found that digital cell phones operating at typical power levels don't pose a meaningful threat to modern ICDs, even when used in close proximity to the body. However, the minor interference detected when phones were held very close to programming equipment suggests that EMF interactions with medical devices remain a legitimate area of concern that requires ongoing monitoring as wireless technologies continue to evolve.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

To investigate the susceptibility of implantable cardioverter defibrillators to electromagnetic interference generated by digital cellular telephones, functioning in both international transmission technologies: the Global System for Mobile Communication (GSM) and the Digital Cellular System (DCS 1800).

In 36 patients with transvenous implantable cardioverter defibrillators from two manufacturers (Medt...

There was no damage, reprogramming, inappropriate shock therapy or pacing inhibition during the test...

Digital cellular telephones do not represent a risk to Medtronic and Guidant/CPI recipients of the specific implantable defibrillator models herein tested.

Cite This Study
Chiladakis JA, Davlouros P, Agelopoulos G, Manolis AS. (2001). In-vivo testing of digital cellular telephones in patients with implantable cardioverter-defibrillators. Eur Heart J 22(15):1337-1342, 2001.
Show BibTeX
@article{ja_2001_invivo_testing_of_digital_1980,
  author = {Chiladakis JA and Davlouros P and Agelopoulos G and Manolis AS.},
  title = {In-vivo testing of digital cellular telephones in patients with implantable cardioverter-defibrillators.},
  year = {2001},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/11465966/},
}
PubMed: 11465966

Cited By (33 papers)

Quick Questions About This Study

Digital cell phones do not pose significant risks to implantable cardioverter-defibrillators based on testing with 36 patients. While phones caused minor sensing errors when held extremely close to programming equipment, they did not damage devices, trigger inappropriate shocks, or prevent proper pacing function.
Yes, digital cellular phones are safe for patients with implantable cardioverter-defibrillators. A 2001 study of 36 ICD patients found no device damage, reprogramming, inappropriate shocks, or pacing problems during phone use, even when phones were tested in close proximity to the devices.
Cell phone radiation does not significantly affect implantable heart defibrillators. Testing on 36 patients showed digital phones caused only minor, temporary sensing errors near programming equipment but did not interfere with the life-saving functions of ICDs or cause any device malfunctions.
Digital cell phones pose no significant risks for patients with implantable cardioverter-defibrillators. Research involving 36 ICD patients demonstrated that phones do not damage these heart devices, trigger false alarms, or interfere with essential pacing and shock therapy functions when needed.
GSM digital phones do not damage implantable defibrillators. Testing with 36 patients using both GSM and DCS 1800 phones showed no device damage, reprogramming, or interference with critical functions. Only minor, harmless sensing errors occurred when phones were held extremely close to programming equipment.