Reprogramming of Implanted Pacemaker Following External Defibrillation

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Abstract
This report describes reprogramming of a pulse generator consequent to cardiac defibrillation. Analysis of the explunted pulse generator revealed normal function. We tested the electrical properties of several defibrillaiors and our studies suggest that erratic electrostatic discharges at the time of paddle application before defibrillation may create a signal sequence capable of reprogrumming the particular pulse generator by activating either the reed switch or internal electronics.