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[Hormone replacement therapy and prevention of postmenopausal cardiovascular diseases]
1Service de Cardiologie, Centre Hospitalier de Valence.
Insights
Hormone replacement therapy (HRT) benefits postmenopausal women by preventing cardiovascular diseases through improved heart function, arterial dilation, and better metabolism. While beneficial long-term, regular reviews are needed due to a slight increase in breast cancer risk.
Area of Science:
- Cardiovascular Science
- Endocrinology
- Women's Health
Context:
- Postmenopausal women face increased cardiovascular disease (CVD) risk.
- Coronary insufficiency is a significant concern for this demographic.
- Hormone replacement therapy (HRT) is a potential intervention.
Purpose:
- To elucidate the mechanisms by which HRT impacts cardiovascular health in postmenopausal women.
- To assess the benefits of HRT on cardiac function, vascular health, metabolism, and hemostasis.
- To inform optimal HRT prescription duration and monitoring strategies.
Summary:
- HRT demonstrates multifactorial cardiovascular benefits, including improved cardiac diastolic filling.
- Arterial effects include dilation of coronary arteries via nitric oxide (NO) production and antioxidant properties.
- HRT favorably influences carbohydrate and lipid metabolism, counteracting atheroma development.
- HRT positively impacts hemostasis by reducing thrombosis risk and enhancing fibrinolysis.
- These benefits, primarily from estrogens, are maintained with progestogen addition.
Impact:
- HRT offers significant protection against cardiovascular diseases in postmenopausal women.
- The findings support prolonged HRT use, though optimal duration requires further clarification.
- Annual reviews are crucial to monitor for a slightly elevated breast cancer risk associated with HRT.
Abstract:
Hormone replacement therapy (HRT) prevents and delays the development of cardiovascular diseases affecting postmenopausal women, particularly coronary insufficiency. This favourable action has a multifactorial mechanism and concerns: the heart, as HRT improves diastolic filling; the arteries, especially the coronary arteries, which HRT dilates by increasing NO production and possibly via its antioxidant properties; carbohydrate and lipid metabolism, which are modified in a direction unfavourable to atheroma; haemostasis, because it decreases the risk of thrombosis and increases endogenous fibrinolysis. These properties are essentially due to oestrogens, but they persist with the addition of progestogens. They encourage the prescription of HRT for as long as possible, although the recommended duration currently remains unclear. With time, however, the slightly increased breast cancer risk demands at least annual review of treated women.