Distinctive electrophysiological properties of pulmonary veins in patients with atrial fibrillation.


BACKGROUND Atrial fibrillation (AF) is frequently initiated from pulmonary veins (PVs), but little is known of the electrophysiological properties of PVs. METHODS AND RESULTS Two groups were studied: 28 patients (49+/-13 years old) with paroxysmal AF and 20 control patients (49+/-14 years old) without AF. Effective and functional refractory period and… (More)

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