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Published on: August 13, 2019
Effect of postmenopausal hormone replacement therapy on cardiovascular performance
Kurtulus Ozdemir1, Cetin Celik, Bülent B Altunkeser
1Cardiology Department, Medical Faculty, Selçuk University, Aybüke Sitesi 83/14, 42080 Selçuklu, Konya, Turkey. kurt33@hotmail.com
Insights
Postmenopausal hormone replacement therapy (HRT) significantly improves cardiac function and exercise performance over six months. This therapy offers progressive benefits for left ventricular function in postmenopausal women.
Area of Science:
- Cardiology
- Endocrinology
- Women's Health
Background:
- Hormone replacement therapy (HRT) is typically studied for its effects on atherosclerotic disease.
- Direct impacts of HRT on cardiac function in postmenopausal women remain less understood.
Purpose of the Study:
- To investigate the long-term effects of HRT on cardiac function.
- To assess the impact of HRT on exercise performance in postmenopausal women.
Main Methods:
- Prospective analysis of 36 postmenopausal women using Doppler echocardiography and exercise stress tests.
- Measurements included left ventricular ejection fraction (EF), filling velocities (E/A waves), deceleration time (EDT), myocardial performance index (MPI), exercise duration, and METS.
- Data collected before HRT and at 3 and 6 months of treatment.
Main Results:
- HRT did not significantly alter left ventricular ejection fraction (EF).
- Significant improvements in E wave, EDT, E/A ratio, and MPI were observed by the sixth month of HRT.
- Exercise duration and METS showed significant improvements by the third month, continuing to the sixth month.
Conclusions:
- Postmenopausal HRT leads to progressive improvements in left ventricular function.
- HRT also results in parallel improvements in exercise performance in postmenopausal women.
Unlabelled:
Postmenopausal hormone replacement therapy (HRT) has usually been evaluated the relationship with atherosclerotic disease, whereas its effect on direct cardiac functions hasn't been investigated in detail. This study was planned to investigate the long-term effects of HRT on cardiac functions and exercise performance.
Methods:
Thirty-six postmenopausal women (mean age: 51 +/- 4 years, 39-60 years) were prospectively analyzed with pulsed wave Doppler echocardiography and symptom-limited exercise stress test before HRT (oral 0.625 mg conjugated estrogen and 2.5 mg medroxyprogesteron acetate/day), and at the third and the sixth months. The effect of HRT on left ventricular ejection fraction (EF), early filling velocity (E wave) and late filling velocity (A wave), E wave deceleration time (EDT), E/A ratio, myocardial performance index (MPI), exercise duration and METS changes were examined.
Results:
HRT did not significantly alter the left ventricular EF. At the third month of HRT, there was an insignificant increase in E wave, EDT, and E/A ratio, whereas an insignificant decrease was noted in MPI (P > 0.05). However, at the sixth month of HRT, these changes became significant (68 +/- 12 vs. 75 +/- 13 cm/s, P < 0.01; 171 +/- 24 vs. 184 +/- 14 ms, P < 0.01; 1.01 +/- 0.23 vs. 1.11 +/- 0.27, P < 0.01, and 44 +/- 9 vs. 39 +/- 8%, P < 0.001, respectively). On the other hand, exercise duration and exercise METS values showed significant improvements at the third month of HRT (423 +/- 104 vs. 482 +/- 104 s, P < 0.001; 8.2 +/- 1.7 vs. 9.1 +/- 2 METS, P < 0.001). These improvements also continued at the sixth month of HRT. In conclusion, postmenopausal HRT leads to a progressive improvement on left ventricular function parameters, and in parallel, in exercise performance.
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