Radio-frequency powered atrial defibrillation with a biphasic rectangular pulse waveform: a safety study at 3 and 5 Jouls

OJ Escalona, SJ Walsh, JD Allen, JMCC Anderson, AAJ Adgey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel device for transvenous atrial defibrillation with a biphasic rectangular pulse waveform, with instant power supplied through a radio-frequency energy-transfer link in a short air gap of up to 18 mm, has been investigated and is briefly described here. Previous waveform assessments, have suggested that a biphasic and asymmetric (second phase at 50% amplitude) pulse waveform of energy discharge is of particular clinical interest. Hence, a safety study upon the haemodynamic effects of such a novel waveform for atrial defibrillation, was carried out on 6 animal models (pigs), at energy levels of 3 3 and 5 J. The results demonstrated relatively small and reversible effects on the haemodynamics and the novel waveform was comparable in effect to a conventional, capacitor-based (with RC exponential decay), biphasic waveform. Also, an assessment of the device output performance for various air gap distances is presented.
Original languageEnglish
Title of host publicationUnknown Host Publication
Place of Publication345 E 47TH ST, NEW YORK, NY 10017 USA
Pages309-314
Number of pages6
Publication statusPublished - 2004
EventICCDCS 2004: Fifth International Caracas Conference on Devices, Circuits and Systems - Punta Cana, Dominican Republic
Duration: 1 Jan 2004 → …

Conference

ConferenceICCDCS 2004: Fifth International Caracas Conference on Devices, Circuits and Systems
Period1/01/04 → …

Keywords

  • Cardioversion
  • atrial fibrillation
  • RF coupled coils
  • wireless power delivery
  • low-tilt waveform cardioversion
  • transdermal atrial defibrillation.

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    Escalona, OJ., Walsh, SJ., Allen, JD., Anderson, JMCC., & Adgey, AAJ. (2004). Radio-frequency powered atrial defibrillation with a biphasic rectangular pulse waveform: a safety study at 3 and 5 Jouls. In Unknown Host Publication (pp. 309-314). 345 E 47TH ST, NEW YORK, NY 10017 USA.