This report describes two cases of pacemaker auto-interference caused by thoracic impedance measurements for the rate response function of a dual chamber pacemaker. Mechanisms of this phenomenon and reprogramming strategies are discussed.
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Pacemaker auto-interference by thoracic impedance measurement for the rate response function.
Pacing Clin Electrophysiol
December 2005
Deutsches Herzzentrum München and 1. Med. Klinik, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany.
This report describes two cases of pacemaker auto-interference caused by thoracic impedance measurements for the rate response function of a dual chamber pacemaker. Mechanisms of this phenomenon and reprogramming strategies are discussed.
View Article and Find Full Text PDFImmediately after implantation of a unipolar demand pacemaker, inappropriate inhibition accompanied by instability of the ECG baseline became apparent. Later, higher frequency artifact appeared and the pacemaker fired intermittently in its fixed rate mode, indicating the sensing of severe interference. These phenomena were subsequently found to have resulted form ecposure on the pacemaker surface of a connection between the negative side of the battery and the electronic components.
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