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P-wave parameters and cardiac repolarization indices: does menopausal status matter?
Umuttan Dogan1, Nasuh Utku Dogan, Ahmet Ozgur Basarir
1Konya University, Meram School of Medicine, Department of Cardiology, Konya, Turkey. umuttandogan@gmail.com
Journal of Cardiology
|June 5, 2012
Summary
Postmenopausal women show a significant decrease in the Tpeak to Tend interval, a cardiac repolarization measure, compared to premenopausal women. Other ECG parameters like QT intervals and P-wave characteristics remained unchanged, suggesting specific cardiac electrical adaptations during menopause.
Area of Science:
- Cardiology
- Women's Health
- Electrophysiology
Background:
- Limited data exists on electrocardiographic (ECG) characteristics in postmenopausal women.
- Menopause may influence cardiac electrical activity due to hormonal changes.
Purpose of the Study:
- To compare P-wave parameters and cardiac repolarization indices between premenopausal and postmenopausal women.
- To investigate the effect of menopausal status on ECG recordings.
Main Methods:
- Prospective, cross-sectional study involving 125 postmenopausal and 125 age-matched premenopausal women.
- Standard 12-lead ECG recordings were obtained.
- P-wave parameters and cardiac repolarization indices, including Tpeak-Tend (TpTe) and QT intervals, were measured and compared.
Main Results:
- No significant differences were observed in heart rate, P-wave duration/dispersion, or QT interval/dispersion between the groups.
- Mean Tpeak to Tend (TpTe) interval and corrected TpTe interval were significantly shorter in postmenopausal women compared to premenopausal women (p<0.001).
Conclusions:
- Menopause is associated with a significant shortening of the Tpeak to Tend interval.
- QT intervals and P-wave parameters do not appear to be significantly altered by menopausal status.
- Further research is needed to explore the role of sex steroids and the prognostic implications of these ECG changes.
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