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Effect of Valsalva maneuver on surface electrocardiographic P-wave dispersion in paroxysmal atrial fibrillation.

Authors
  • Tükek, T1
  • Akkaya, V
  • Demirel, S
  • Sözen, A B
  • Kudat, H
  • Atilgan, D
  • Ozcan, M
  • Güven, O
  • Korkut, F
  • 1 Cardiovascular Research Center, Istanbul Faculty of Medicine, Turkey.
Type
Published Article
Journal
The American Journal of Cardiology
Publisher
Elsevier
Publication Date
Apr 01, 2000
Volume
85
Issue
7
Identifiers
PMID: 10758937
Source
Medline
License
Unknown

Abstract

The purpose of this study was to investigate the effect of the Valsalva maneuver on P-wave durations and dispersion. After the Valsalva maneuver, we found that maximum P-wave duration increased, minimum P-wave duration decreased, and P-wave dispersion increased in controls, whereas the opposite was true for unselected patients with paroxysmal AF. It was concluded that patients with paroxysmal AF performing the Valsalva maneuver normalized their P-wave dispersion, thereby correcting the inhomogeneous intra-atrial conduction.

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