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Interaction of work electromagnetic field with implanted cardiostimulation system, analysis by in vitro method at patient practicing of profession

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The aim was to assess the clinical significance of the interaction of the cardiac implantable electronic device (CIED) of the selected patient and the interfering electromagnetic field (EMF) during practicing of a profession in an industrial environment. The next step was to analyze risk factors using the specific measurement on the phantom and to determine the conditions for minimizing the risk. We present a method of the provocative analysis on the phantom of the stimulation system. The phantom approximates the system in patient’s chest. The measurement was performed using real-time analysis of sensed signals and the pacemaker (PCM) response on the programmer to the source of an electromagnetic interference (EMI) at the workplace. Disturbing signals from an external source can cause an emergency operation of PCM, like asynchronous pacing or pacing inhibition. The interaction was assessed in various exposures, changes of device programming and function responses to EMI. The magnetic field was detected in close proximity (< 5 cm) of CIED from the surface of the EMI source. Induced potentials were continuously sensed at close distances from the source and it activated asynchronous stimulation. The response varied according to the system orientation. At greater distances (< 20 cm above, < 10 cm in front) the intermittent signal sensing and the pacing inhibition occurred during standard PCM programming. Zones for safe operation were determined and the PCM programming was optimized. The interference signal sensing is significantly affected by the CIED programming. This patient can continue to practice the profession safely with high probability by following certain precautions and adjusting PCM settings. We present this analysis on the phantom of the CIED as one of options where the measurement does not pose a risk to the patient with an implant.

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This research is a partial result of cooperation between Technical University of Liberec, Faculty of Mechatronics and Faculty of Health Studies, and Regional Hospital Liberec, Department of Cardiology.


This research was supported by Student Grant Competition SGS-2021-3002 of Technical University of Liberec in 2021.

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All authors have more or less equally contributed in generating/collecting data in their respective fields as well as in the compilation of data and manuscript preparation.

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Correspondence to Jan Morava.

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Authors state that the research was conducted according to ethical standards. The research (reference number: EK/117/2020) was approved by Ethics Committee of the Regional Hospital in Liberec in 12/2020.

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Informed consent was obtained from the patient participating in this study.

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Morava, J., Richter, A., Kupec, J. et al. Interaction of work electromagnetic field with implanted cardiostimulation system, analysis by in vitro method at patient practicing of profession. Health Technol. 12, 801–807 (2022).

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