نتایج جستجو برای: af
تعداد نتایج: 20582 فیلتر نتایج به سال:
The purpose of this study is to evaluate in vitro gene delivery mediated by asialofetuin-appended cationic liposomes (AF-liposomes) associating cyclodextrins (CyD/AF-liposomes) as a hepatocyte-selective nonviral vector. Of various CyDs, AF-liposomes associated with plasmid DNA (pDNA) and γ-cyclodextrin (γ-CyD) (pDNA/γ-CyD/AF-liposomes) showed the highest gene transfer activity in HepG2 cells wi...
OBJECTIVE Timely detection of atrial fibrillation (AF) may effectively prevent cardiovascular consequences. However, traditional diagnostic tools are either poorly reliable (pulse palpation) or not readily accessible (ECG) in general practice. We tested whether an automatic oscillometric blood pressure (BP) monitor embedded with an algorithm for AF detection might be effective for opportunistic...
Multiple arrhythmogenic foci associated with the development of perpetuation of atrial fibrillation.
BACKGROUND The presence of multiple arrhythmogenic sources may be associated with the perpetuation of atrial fibrillation (AF). In this study, we investigated the hypothesis that multiple foci might be involved in the development of AF persistency. METHODS AND RESULTS Two hundred fourteen consecutive patients with AF undergoing catheter ablation were enrolled in this study. The location of th...
OBJECTIVES Our goal was to determine the risk of stroke or non-cerebral embolism associated with paroxysmal compared with sustained atrial fibrillation (AF). BACKGROUND The risk of stroke and non-cerebral embolism and the efficacy of oral anticoagulation (OAC) in paroxysmal AF as compared with sustained AF are not precisely known. METHODS The ACTIVE W (Atrial Fibrillation Clopidogrel Trial ...
Introduction: Previous studies have indicated a relationship between MPTP pore and AV nodal rate-dependent properties. The aim of present study was to determine acute direct effects of cyclosporine on extracellular field potential of isolated rabbit AV node during experimental atrial fibrillation. Methods: In one group of male New Zealand rabbits (1.5-2.5 kg) cumulative concentrations of cyc...
OBJECTIVE Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with increased morbidity and mortality. Atrial fibrosis augments recurrence rate following AF catheter ablation. Osteopontin is a multifunctional molecule involved in several pathophysiological pathways, including fibrosis. Presently described is investigation of relationship between serum osteopontin l...
OBJECTIVES To determine whether Gal-3 mediates sustained atrial fibrillation (AF)-induced atrial structural and electrical remodeling and contributes to AF perpetuation. BACKGROUND Galectin-3 (Gal-3) mediates extracellular matrix remodeling in heart failure, but its role in AF progression remains unexplored. METHODS We examined intracardiac blood samples from patients with AF (N=55) to iden...
BACKGROUND Atrial fibrillation (AF) is a common, age-related arrhythmia that disproportionately affects men, adversely affects quality of life, and causes considerable morbidity and mortality. OBJECTIVES To describe trends in the prevalence and incidence of AF in the United States; discuss the etiologies and complications of AF; characterize the economic burden of AF; and predict an individua...
PURPOSE Different approaches like providing augmented feedback (aF), applying an external focus of attention (EF), or rewarding participants with money (RE) have been shown to instantly enhance motor performance. So far, these approaches have been tested either in separate studies or directly against each other. However, there is no study that combined aF, EF, and/or RE to test whether this pro...
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