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Related Experiment Videos

P-wave dispersion in panic disorder.

Mustafa Yavuzkir1, Murad Atmaca, Necati Dagli

  • 1Department of Cardiology, Firat University, School of Medicine, Elazig, Turkey. mfyavuzkir@firat.edu.tr

Psychosomatic Medicine
|May 19, 2007
PubMed
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Individuals with panic disorder exhibit increased P-wave dispersion (PWD), a measure of atrial electrical activity. This finding suggests a link between panic disorder, heightened sympathetic tone, and cardiac electrophysiological changes.

Area of Science:

  • Cardiology
  • Psychiatry
  • Electrophysiology

Background:

  • P-wave dispersion (PWD) reflects variations in P-wave duration on ECG.
  • Elevated PWD is linked to increased autonomic nervous system activity, particularly sympathetic tone.
  • PWD may predict atrial fibrillation susceptibility.

Purpose of the Study:

  • To investigate the association between PWD and panic disorder.
  • To explore the relationship between PWD and anxiety levels in panic disorder patients.

Main Methods:

  • PWD was measured in 40 panic disorder outpatients and 40 healthy controls.
  • Participants completed the Panic Agoraphobia Scale (PAS) and Hamilton Depression Rating Scale (HDRS).

Main Results:

Related Experiment Videos

  • Panic disorder patients showed significantly greater PWD compared to controls.
  • PWD correlated significantly with PAS scores, indicating a link with anxiety severity.
  • Heart rate did not significantly differ between groups.

Conclusions:

  • Panic disorder is associated with increased PWD.
  • This association may stem from prolonged anxiety and sympathetic overactivity characteristic of panic disorder.