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Wiley InterScience | |||||||||
  Pacing and Clinical ElectrophysiologyVolume 26 Issue 6, Pages 1342 - 1347 Published Online: 30 May 2003 © 2010 Wiley Periodicals, Inc.
Abstract | References | Full Text: HTML, PDF (Size: 180K) | Related Articles | Citation Tracking  Characteristics of Rapid Rhythms Recorded Within Pulmonary Veins During Atrial Fibrillation Supported in part by a grant from the Gunma Prefecture Government and the Ellen and Robert Thompson Atrial Fibrillation Research Fund. Received June 11, 2002; revised August 16, 2002; accepted October 3, 2002 Copyright 2003 by Blackwell Futura Publishing Company, Inc. KEYWORDS
pulmonary vein
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atrial fibrillation
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tachycardia
TADA, H., et al.: Characteristics of Rapid Rythms Recorded within Pulmonary Veins During Atrial Fibrillation.
ABSTRACTRapid rhythms often arise in the pulmonary veins during atrial fibrillation (AF). The activation patterns within pulmonary veins during these rapid rhythms are not well described. In 39 patients with paroxysmal AF, ostial recordings were obtained during AF in 110 pulmonary veins with a decapolar distal ring catheter. Pulmonary vein tachycardia (PVT) was defined as a pulmonary vein (PV) rhythm that had a cycle length shorter than at the adjacent left atrium. During AF, PVT was recorded in 93% of PV's, usually in the form of intermittent bursts that had a mean duration of 1,325 ± 647 ms and mean cycle length of 125 ± 20 ms. The mean cycle length of continuous PVT's (141 ± 25) was longer than the mean cycle length of intermittent bursts of PVT (P < 0.05). The intermittent PVT's were associated with a shorter left atrial cycle length than were the continuous PVT's. In 90% of PVTs, complex activation patterns attributable to simultaneous recordings from two or more overlapping fascicles were present at a segment of the pulmonary vein ostium, and the mean cycle length of these recordings was 80 ± 32 ms. PVT during AF is much more often intermittent than continuous. The relationship between PVT cycle length and left atrial cycle length suggests that PVT's influence the left atrium during AF. PVT must be distinguished from recordings within PV's that have a short cycle length as a result of simultaneous recordings from two or more overlapping fascicles. (PACE 2003; 26:1342–1347) Received: 11 June 2002; 16 August 2002; Accepted: 03 October 2002; | 
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