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 J 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 language | English |
|---|---|
| Title of host publication | Unknown Host Publication |
| Publisher | IEEE |
| Pages | 309-314 |
| Number of pages | 6 |
| Volume | 5 |
| ISBN (Print) | 0-7803-8777-5 |
| DOIs | |
| Publication status | Published (in print/issue) - 15 Dec 2004 |
| Event | 5th IEEE International Caracas Conference on Devices, Circuits and Systems - Punta Cana, Dominican Republic Duration: 15 Dec 2004 → … |
Conference
| Conference | 5th IEEE International Caracas Conference on Devices, Circuits and Systems |
|---|---|
| Period | 15/12/04 → … |
Keywords
- Defibrillators
- Electric power systems
- Energy transfer
- Mathematical models
- Haemodynamics
- Pulse waveform
- Radio-frequency
- Reversible effects
- Waveform analysis
- asymmetric pulse waveform
- biphasic rectangular pulse waveform
- energy discharge
- haemodynamic effects
- radiofrequency energy-transfer
- radiofrequency powered atrial defibrillation.