Abstract
The study deals with the interdisciplinary topic of the electromagnetic compatibility of the cardiac implantable electronic devices that are used in patients with a defect of heart conduction system. We are focusing on the detection of disturbing signals on electrodes of cardiostimulation device and its interpretation. The detection of electromagnetic interference (EMI) is related to electrode choice, device placement, its configuration and programming. The aim of the study is the analysis of the pacemaker response in the presence of an external source of the disturbance fields. We point to possible risks of its interaction and discuss mechanisms that can influence the pacemaker sensitivity to EMI. Due to improper signal detection, the device programming changes can occur. We present an experiment of the exposure of the cardiostimulation system to a low-frequency harmonic interference signals and finally we analyse similar clinical episode and discuss proper functioning of the pacemaker.
Highlights
The wide spectrum of cardiac implantable electronic devices includes pacemakers (PCMs) for the bradyarrhythmia treatment, cardioverter-defibrillators (ICDs) for the treatment of tachyarrhythmias, and devices for resynchronization therapy
In this paper we demonstrated the induced erroneous response of different Cardiostimulation implantable devices (CIED) based on the false detection of electromagnetic interference (EMI) on the atrial channel as an atrial fibrillation
Changing of CIED programming by activating the Automatic mode switching (AMS) mode is not significant for the patient. It depends on the preset of the device and may not be perceived by the patient. In these examples we demonstrate, that CIEDs are prone to misinterpretation of electrical signals and that EMI can affect the proper function of the device
Summary
The wide spectrum of cardiac implantable electronic devices includes pacemakers (PCMs) for the bradyarrhythmia treatment, cardioverter-defibrillators (ICDs) for the treatment of tachyarrhythmias, and devices for resynchronization therapy. All these devices have the possibility of cardiac pacing for bradyarrhythmia treatment. The stimulation of myocardial cells by an electric impulse of predefined parameters is the response of the device to sensed cardiac activity [1]. The detection of such signals that are not physiological activity of the heart can affect the proper function of the device and endanger the patient.
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