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BACKGROUND Circumferential pulmonary vein ablation (CPVA) is effective in curing atrial fibrillation (AF), but new-onset left atrial tachycardia (AT) is a potential complication. We evaluated whether a modified CPVA approach including additional ablation lines on posterior wall and the mitral isthmus would reduce the incidence of AT after PV ablation. (More)
BACKGROUND We conducted a randomized, controlled trial of circumferential pulmonary-vein ablation for the treatment of chronic atrial fibrillation. METHODS A total of 146 patients with a mean (+/-SD) age of 57+/-9 years who had chronic atrial fibrillation were randomly assigned to receive amiodarone and undergo two cardioversions during the first three(More)
BACKGROUND Sudden cardiac death can be the first clinical presentation of asymptomatic ventricular preexcitation. METHODS AND RESULTS From 1995 to 2005, we prospectively collected clinical and electrophysiological data among 293 adults with asymptomatic ventricular preexcitation (61.4% males; median age, 36 years; interquartile range [IQR], 28 to 47.5).(More)
Climate change is widely recognized as one of the most complex challenges that humankind has to face in the next decades. As agriculture is likely to suffer the biggest impacts, sound adaptation processes are required to sustain agricultural production and food system as a whole. IPCC, the Intergovernmental Panel for Climate Change, stressed the ability of(More)
Much of the research that goes into Big Data, and specifically on Collaborative Big Data, is focused upon questions, such as: how to get more of it? (e.g., · participatory mechanisms, social media, geo-coded data from personal electronic devices) and · how to handle it? (e.g., how to ingest, sort, store, and link up disparate data sets). A(More)
The growing complexity of electrical power grids is demanding increasingly innovative solutions to build more stable and secure grids, a trending that is particularly evident across the spectrum of industrialized countries. Such a need is also clear for emerging countries, wherein China has rapidly become a key development player whose technological(More)
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