Electrophysiological Properties in Paroxysmal Atrial Fibrillation Complicated with the Wolff-Parkinson-White Syndrome: Comparison with Paroxysmal Atrial Fibrillation Alone

1 January 1994

journal article
research article
Published by S. Karger AG in Cardiology

Vol. 84 (4-5) , 292-297
https://doi.org/10.1159/000176414

Abstract

Electrophysiological studies were performed in 26 patients with atrial fibrillation (AF). Thirteen patients had the Wolff-Parkinson-White (WPW) syndrome (group A), and another 13 patients did not have the WPW syndrome (group B). The right atrium effective refractory period was significantly shorter in group A than in group B. The wavelength index which was defined as the ratio of the refractory period to the conduction delay was significantly lower in group A than in group B. Accordingly, patients in group A had a greater tendency to produce atrial reentry than those in group B.

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