Decreasing the defibrillation energy by optimizing the pulse duration of electrical shock

摘要

Objective: Low energy defibrillation can not only save the power of the device (especially the ICD) but also lighten the damage to the patients. This paper investigates the method to decrease the defibrillation energy by optimizing the pulse duration of electrical shock. Methods: The defibrillation threshold is one of the main parameter to evaluate the defibrillation dosage. In this paper, the defibrillation threshold coresponding to the pulse duration is analysed and studied through 7 animal trails by an appropriative defibrillator designed by ourselves. Results: The defribrillation thresholds are changing along with the changing of the pulse duration and existing optimal pulse duration that coresponding to the lowest defibrillation threshold. Althrough this optimal pulse duration is not so steady under different conditions in our animal trails but it showed a nice possibility to decrease the defibrillation energy by optimizing the pulse duration.