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Am J Cardiol. 2000 Apr 1;85(7):896-9, A10.

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

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  • 1Cardiovascular Research Center, Istanbul Faculty of Medicine, Turkey.

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.

PMID:
10758937
[PubMed - indexed for MEDLINE]
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