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Objective: Atrial fibrillation (AF) is a frequent complication following open-heart surgery (OHS). Increased atrial fibrosis may indicate the presence of an intrinsic arrhythmogenic substrate. The aim of this prospective study was to determine whether atrial fibrosis is associated with increased prevalence of AF after OHS. Methods: Right atrial appendages were obtained from 259 patients undergoing...
Objective: Automatic analysis of the frequency content of the fibrillatory baseline on the surface ECG accurately reflects the average rate of atrial fibrillation (AF). This frequency measurement correlates with the behavior of AF and predicts the response to administration of ibutilide, a new antiarrhythmic drug. Neither the temporal pattern of fibrillatory frequency in spontaneous paroxysmal or...
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