نتایج جستجو برای: biphasic or either
تعداد نتایج: 3576652 فیلتر نتایج به سال:
BACKGROUND Clinical studies have shown that biphasic shocks are more effective than monophasic shocks for ventricular defibrillation. The purpose of this study was to compare the efficacy of a rectilinear biphasic waveform with a standard damped sine wave monophasic waveform for the transthoracic cardioversion of atrial fibrillation. METHODS AND RESULTS In this prospective, randomized, multic...
OBJECTIVE To evaluate the effects of two stimulation waveforms on healing rates in patients with diabetes and open ulcers. The hypothesis was that stimulus waveforms with minimal polar characteristics would provide significant healing for this patient sample. RESEARCH DESIGN AND METHODS This was a prospective study that enrolled 80 patients with open ulcers. Patients received stimulation with...
Human peripheral blood monocytes have been found to undergo a transitory state of high accessory activity before they fully become macrophages. Time kinetics were done to follow this accessory potential. Studying the regulation of accessory activity, we have found that monocyte derived accessory cells (m-AC) pass through two phases of development, both of which are adversely controlled by ...
Theoretical models of irreversible electro-oxidation of dissolved reactant giving dissolved product on the stationary planar electrode are developed for the conditions of staircase cyclic voltammetry. In the first model it is assumed that the product is adsorbed on the electrode surface and that the adsorbate prevents the transfer of electrons. In the second model it is assumed that the electro...
BACKGROUND Several different defibrillators are currently used for cardioversion and defibrillation of cardiac arrhythmias. The efficacy of a novel pulsed biphasic (PB) waveform has not been compared to other biphasic waveforms. Accordingly, this study aims to compare the efficacy and safety of PB shocks with biphasic truncated exponential (BTE) shocks in patients undergoing cardioversion of at...
introduction: mineral trioxide aggregate (mta) is an endodontic material with different clinical applications e.g. root-end filling, pulp capping and perforation repair. it has been reported to possess antimicrobial and antifungal activities. the aim of this study was to examine the effect of white mta on formalin-induced hyperalgesia in a rat with inflammatory pain. materials and methods: inf...
The use of a low tilt biphasic waveform lowers the defibrillation threshold for the internal cardioversion of atrial fibrillation Purpose: Conventional defibrillators used for the internal cardioversion of atrial fibrillation (AF) employ high tilt waveforms generated by a capacitor based discharge. We have developed a biphasic waveform with low tilt. This was compared with a conventional wavefo...
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