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Arrhythmias and Electrophysiology

Anxiety and P Wave Dispersion in a Healthy Young Population

Uyarel H. · Kasıkcıoglu H. · Dayi S.U. · Tartan Z. · Karabulut A. · Uzunlar B. · Samur H. · Sarı I. · Okmen E. · Cam N.

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Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey

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Cardiology 2005;104:162–168

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Article / Publication Details

First-Page Preview
Abstract of Arrhythmias and Electrophysiology

Received: January 06, 2005
Accepted: April 05, 2005
Published online: September 15, 2005
Issue release date: September 2005

Number of Print Pages: 7
Number of Figures: 2
Number of Tables: 5

ISSN: 0008-6312 (Print)
eISSN: 1421-9751 (Online)

For additional information: http://www.karger.com/CRD

Abstract

Background: P wave dispersion (Pd), defined as the difference between the maximum (Pmax) and the minimum P wave duration (Pmin), and Pmax are electrocardiographic (ECG) markers that have been used to evaluate the discontinuous propagation of sinus impulses and the prolongation of atrial conduction time. Pd in normal subjects has been reported to be influenced by the autonomic tone, which induces changes in atrial size and the velocity of impulse propagation. However, the association between Pd and anxiety has not been studied in normal subjects. Methods and Results: Pmax, Pmin and Pd were measured in 726 physically and mentally healthy young male volunteers, aged 21.23 ± 1.25 years (range 20–26). The Spielberger State-Trait Anxiety Inventory (STAI) was scored concomitantly. Blinded intra- and interobserver reproducibility of the P wave duration and Pd measurement were evaluated, and comparison revealed a Pearson correlation coefficient of 0.87 and 0.89 for the P wave duration, and 0.93 and 0.90 for Pd, respectively (p < 0.001). Pmax and Pd were significantly correlated with the state anxiety (STAI-1) subscale (r = 0.662, p < 0.001, and r = 0.540, p < 0.001, respectively) and the trait anxiety (STAI-2) subscale (r = 0.583, p < 0.001, and r = 0.479, p < 0.001, respectively). Pmin did not show any significant correlation with anxiety. Across 3 variables included in a multiple linear regression analysis, STAI-1 and STAI-2 were the significant independent determinants of Pmax and Pd. Beta coefficients indicated that the contribution of STAI-1 to Pmax (66.3 and 33.7%) and Pd (65 and 35%) was much greater than that of STAI-2. Conclusions: STAI-1 and STAI-2are associated with an increase in Pmax and Pd. The association of Pd resulted from an augmentation of Pmax. This is the first study to show the relation between Pmax, Pd and anxiety.

© 2005 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Arrhythmias and Electrophysiology

Received: January 06, 2005
Accepted: April 05, 2005
Published online: September 15, 2005
Issue release date: September 2005

Number of Print Pages: 7
Number of Figures: 2
Number of Tables: 5

ISSN: 0008-6312 (Print)
eISSN: 1421-9751 (Online)

For additional information: http://www.karger.com/CRD


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Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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