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

TUKEK T. , AKKAYA V. A. , DEMIREL S., SOZEN A. B. , Kudat H. , ATILGAN D., ...More

AMERICAN JOURNAL OF CARDIOLOGY, vol.85, no.7, pp.896-900, 2000 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 85 Issue: 7
  • Publication Date: 2000
  • Doi Number: 10.1016/s0002-9149(99)00891-7
  • Title of Journal : AMERICAN JOURNAL OF CARDIOLOGY
  • Page Numbers: pp.896-900

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.