Título:
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Huge reduction of defibrillation thresholds using four electrode defibrillators
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Autor/a:
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Simic, Ana; Rodríguez Cantalapiedra, Inma; Elorza Barbajero, Jorge; Bragard, Jean
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. GICITED - Grup Interdiciplinari de Ciència i Tecnologia en l'Edificació |
Abstract:
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In the absence of a better solution, ventricular fibril-
lation is treated by applying one or several large electri-
cal shocks to the patient. The question of how to lower
the energy required for a successful shock is still a cur-
rent issue in both fundamental research and clinical prac-
tice. In the study presented here we will compare defib-
rillation applied through a four electrode device with the
standard procedure using two electrodes. The method is
tested through intensive numerical simulations. Here we
have used a one dimensional geometry. At the level of
the cardiac tissue, the bidomain and the modified Beeler-
Reuter models were used. Three different shock waveforms
are tested: monophasic and two types of biphasic shocks.
The results are compared with those obtained with stan-
dard two electrode device. A significant reduction in de-
fibrillation thresholds is achieved for all the three tested
waveforms when we use a four electrode device. |
Materia(s):
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-Àrees temàtiques de la UPC::Física -Defibrillators -defibrillation thresholds
defibrillators -Desfibril·ladors |
Derechos:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipo de documento:
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Artículo - Versión publicada Artículo |
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