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Comparative Study
. 2000 Apr 1;85(7):896-9, A10.
doi: 10.1016/s0002-9149(99)00891-7.

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

T Tükek  1 , V Akkaya, S Demirel, A B Sözen, H Kudat, D Atilgan, M Ozcan, O Güven, F Korkut
Affiliations
Comparative Study

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

T Tükek et al. Am J Cardiol. .

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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