[The influence of HRT on exercise performance in women with coronary artery disease]
Piotr Breborowicz1, Marzena Maciejewska, Agnieszka Katarzyńska
1I Klinika i Katedra Kardiologii AM w Poznaniu. piotr@kardioserwis.com
Insights
Hormone replacement therapy (HRT) did not improve exercise tolerance or coronary ischemia in postmenopausal women with coronary artery disease (CAD) over 12 months. Both HRT and control groups showed similar improvements, indicating no added benefit of HRT for these outcomes.
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Exercise Physiology
Background:
- Coronary artery disease (CAD) is a significant health concern in postmenopausal women.
- Hormone replacement therapy (HRT) has been investigated for potential cardiovascular benefits.
- The impact of HRT on exercise capacity and ischemic responses in women with established CAD requires further clarification.
Purpose of the Study:
- To evaluate the effect of short-term, combined, transdermal hormone replacement therapy (HRT) on exercise tolerance.
- To assess the impact of HRT on the onset and severity of myocardial ischemia during treadmill exercise testing.
- To compare exercise parameters and ischemic responses between postmenopausal women with CAD receiving HRT and a matched control group.
Main Methods:
- Prospective, cohort study design involving 56 postmenopausal women with proven coronary artery disease (CAD).
- Participants were divided into two groups: 31 receiving hormone replacement therapy (HRT) and 25 serving as a matched control group.
- Treadmill exercise tests were conducted at baseline and after 12 months of follow-up to assess exercise tolerance and ischemia.
Main Results:
- Exercise tolerance, measured by duration time and workload (METs), increased significantly and similarly in both the HRT and control groups after 12 months.
- The time to the onset of ischemia also showed significant and comparable increases in both groups.
- No significant changes were observed in the number of leads with ST changes or the total sum of ST depression between the groups.
Conclusions:
- Short-term, combined, transdermal hormone replacement therapy (HRT) does not demonstrate efficacy in improving exercise tolerance.
- HRT did not show a significant benefit in reducing or delaying coronary ischemia during exercise testing in postmenopausal women with CAD.
- These findings suggest that HRT does not offer additional advantages for exercise performance or ischemic burden in this patient population.
Objectives:
The aim of this study was to evaluate the effect of hormone replacement therapy (HRT) on exercise tolerance and ischemia during treadmill exercise test.
Design:
Prospective, cohort study.
Materials And Methods:
Fifty-six postmenopausal women with proven coronary artery disease (CAD) were enrolled into the study (31 were assigned to HRT and 25 were matched as a control group). Clinically both groups were comparable. All patients underwent treadmill exercise test at the beginning and after 12 months of follow up.
Results:
After 12-months of follow-up exercise tolerance increased significantly and similarly in both groups: duration time (sec): HRT 347 +/- 142 to 401 +/- 113; control 328 +/- 112 to 368 +/- 120; workload (MET): 6.6 +/- 2.1 to 6.8 +/- 2.0 and 6.1 +/- 1.9 to 6.8 +/- 1.7; time to onset of ischemia (sec): 256 +/- 116 to 293 +/- 120 and 238 +/- 87 to 299 +/- 133. Number of leads with ST changes and total sum (mm) of ST depression in all leads did not change significantly. All above parameters were comparable at baseline and after 12 months follow-up between both groups.
Conclusions:
Short term, combined, transdermal HRT does not improve exercise tolerance nor coronary ischemia during exercise test in women with CAD.
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