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Anesth Analg 2006;103:1485-1488
© 2006 International Anesthesia Research Society
doi: 10.1213/01.ane.0000244477.15072.16

TECHNOLOGY, COMPUTING, AND SIMULATION

Automated External Defibrillators Do Not Recommend False Positive Shocks Under the Influence of Electromagnetic Fields Present at Public Locations

Roman Fleischhackl, MD*{dagger}, Florian Singer, MD*, Bernhard Roessler, MD*{ddagger}, Jasmin Arrich, MD{dagger}, Sabine Fleischhackl, MD*, Heidrun Losert, MD{dagger}, Thomas Uray, MD{dagger}, Klemens Koehler, MD{dagger}, Fritz Sterz, MD{dagger}, Martina Mittlboeck, MSc, PhD§, and Klaus Hoerauf, MD, PhD*{ddagger}

From the *Research Institute, Vienna Red Cross; Departments of {dagger}Emergency Medicine and {ddagger}Anaesthesia and Intensive Medicine; §Core Unit for Medical Statistics and Informatics, Medical University of Vienna, Vienna, Austria.

Address correspondence and reprint requests to Roman Fleischhackl, MD, Medical University of Vienna, Department of Emergency Medicine, Waehringer Guertel 18-20, A-1090 Vienna, Austria. Address e-mail to roman.fleischhackl{at}meduniwien.ac.at.

Electromagnetic fields (EMF) reduce the signal quality of electrocardiograms and may lead to the misinterpretation by automated external defibrillators (AED). We designed this investigation as a prospective study, with a randomized sequence of AED applications on healthy volunteers. We chose busy public places where public access defibrillation was possible as test locations. Strong EMF were sought and found at train stations next to accelerating and decelerating trains. The primary outcome variable was the absolute number of shocks advised in the presence of sinus rhythm by five commonly used AED in Austria. For data analysis, the statistician was blinded in regard to the AED models tested. Data analysis was based on a per protocol evaluation. Of 390 tests run, 0 cases of false positive results occurred (95% CI: 0–0.77). AED can be regarded as safe, even with the interference of EMF present at train stations.




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Home page
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AEDs Are Reliable in the Presence of Strong Electromagnetic Fields
Journal Watch Emergency Medicine, December 22, 2006; 2006(1222): 4 - 4.
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Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 2006 by the International Anesthesia Research Society.