Huge reduction of defibrillation thresholds using four electrode defibrillators
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hdl:2117/116097
Tipus de documentArticle
Data publicació2015-01-02
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Abstract
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.
CitacióSimic, A., Rodriguez Cantalapiedra, I., Elorza, J., Bragard, J. Huge reduction of defibrillation thresholds using four electrode defibrillators. "Computing in Cardiology", 2 Gener 2015, vol. 41, p. 505-508.
ISSN2325-8861
Versió de l'editorhttp://www.cinc.org/archives/2014/pdf/0505.pdf
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