Are All Paroxysms of Atrial Fibrillation Focally Initiated?
The most striking electrophysiologic characteristic of atrial fibrillation (AF) is the absence of discrete P waves along with irregular and asynchronous atrial activity . It is perhaps therefore not surprising that the overwhelming majority of investigative efforts have been directed at analysing this characteristic of the arrhythmia and therefore involved the study of AF in the maintenance phase [2–6]. Additionally, there is no available model of spontaneous paroxysmal AF, and as a result the spontaneous debut of paroxysms of AF has not been analysed.
KeywordsAtrial Fibrillation Pulmonary Vein Left Atrium Ectopic Beat Pulmonary Vein Stenosis
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