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An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
Menopausal hormone therapy for cardiovascular protection--unfulfilled expectations
1Grady Memorial Hospital, Atlanta, GA, USA. nwenger@emory.edu
Insights
Menopausal hormone therapy does not prevent heart disease in women, according to clinical trials. Focus on managing cardiovascular risk factors instead.
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Women's Health
Background:
- Observational studies suggested cardioprotection from menopausal hormone therapy (MHT).
- Biologically plausible mechanisms for MHT benefit exist.
- Previous research indicated potential cardiovascular risks and benefits.
Purpose of the Study:
- To evaluate the efficacy of menopausal hormone therapy (MHT) for cardiovascular disease (CVD) prevention.
- To determine if MHT offers primary or secondary cardioprotection in women.
- To update clinical recommendations regarding MHT use for CVD prevention.
Main Methods:
- Analysis of randomized clinical trials (RCTs) in healthy women.
- Review of RCTs in women with established coronary heart disease.
- Synthesis of evidence regarding MHT's cardiovascular effects.
Main Results:
- RCTs failed to demonstrate cardiovascular benefit from MHT.
- Some RCTs indicated potential harm associated with MHT use.
- In 2009, MHT was not indicated for primary prevention of coronary heart disease or CVD.
Conclusions:
- Menopausal hormone therapy is not recommended for cardiovascular disease prevention in women.
- Aggressive management of established cardiovascular risk factors is crucial for women's heart health.
- Further research is needed on MHT's mechanisms and potential therapeutic windows.
Abstract:
Despite biologically plausible mechanisms of benefit and data from observational studies suggesting cardioprotection from menopausal hormone therapy, the results of randomized clinical trials in both healthy women and women with established coronary heart disease failed to show benefit and indeed imparted some harm. In 2009, menopausal hormone therapy is not indicated for the primary prevention of coronary heart disease or of cardiovascular disease. Prevention of cardiovascular disease in women should be addressed by the aggressive identification and modification of established cardiovascular risk factors. Much remains unknown about the mechanisms of menopausal hormone therapy action and the issue of whether there is a therapeutic window of opportunity for its use.
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