Internal cardiac defibrillation in man: pronounced improvement with sequential pulse delivery to two different lead orientations.
نویسندگان
چکیده
منابع مشابه
Effect of pulse separation between two sequential biphasic shocks given over different lead configurations on ventricular defibrillation efficacy.
BACKGROUND Two sequential biphasic shocks delivered over separate lead configurations markedly improve defibrillation efficacy compared with a single shock alone. We investigated the effect of varying the intershock interval between sequential biphasic shocks on defibrillation. METHODS AND RESULTS Defibrillation thresholds (DFTs) were obtained in six dogs for shock separations ranging from 0....
متن کاملMarked reduction in internal atrial defibrillation thresholds with dual-current pathways and sequential shocks in humans.
BACKGROUND This study tested the ability of sequential shocks delivered through dual-current pathways to lower the atrial defibrillation threshold (ADFT) compared with a biphasic shock through a standard single-current pathway. METHODS AND RESULTS Electrodes were positioned in the right atrial appendage (RA), left subclavian vein (LSV), proximal coronary sinus (CSos), and distal coronary sinu...
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For laterally complex media, it may be more suitable to take a different orientation of thedisplacement vector of Shear-waves. This may change the sign of several imaginary reflections andconversion coefficients to be used in reservoir characterization and AVO (Amplitude Versus Offset)analysis or modeling. In this new convention the positive direction of the displacement vector ofreflected Shea...
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Wider applicability of an implantable automatic defibrillator depends on achieving internal cardiac defibrillation consistently with the lowest possible energy. In animal studies, we have found that the cardiac defibrillation threshold could be reduced when sequential shocks separated in time and spacially arranged were delivered to the heart. We compared internal cardiac defibrillation using a...
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Sudden cardiac death resulting from ventricular arrhythmia is one of the leading public health problems of most developed countries. Despite intense research in the areas of ionic channels and pharmacological interventions, a panacea has not been found to control life-threatening arrhythmia and improve survival. In addition, the results of the Cardiac Arrhythmia Suppression Trial' demonstrated ...
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ژورنال
عنوان ژورنال: Circulation
سال: 1986
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.73.3.484