Related Experiment Video
Updated: Nov 11, 2025

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 an cardiovascular risk. Postmenopausal women management: CNGOF and GEMVi clinical
G Plu-Bureau1, C Mounier-Vehier2
1Unité de gynécologie médicale, hôpital Port-Royal, Paris, France; Université de Paris, Paris, France; Inserm U1153, équipe EPOPEE, Paris, France.
Insights
Menopausal hormone therapy (MHT) requires careful cardiovascular risk assessment. Transdermal estrogen with progesterone is safe, while oral MHT may increase stroke risk, especially when initiated later.
Area of Science:
- Cardiology
- Endocrinology
- Women's Health
Background:
- Cardiovascular disease is the leading cause of death in postmenopausal women.
- Menopausal hormone therapy (MHT) presents significant cardiovascular challenges.
- Evaluating cardiovascular risk requires considering both general and female-specific factors.
Framework:
- Randomized trials have raised questions about MHT's benefits for arterial risk.
- Most trials focused on oral conjugated equine estrogens (ECE) with or without medroxyprogesterone acetate.
- Meta-analyses guide understanding of MHT's cardiovascular impact.
Implementation:
- Oral MHT, particularly ECE-based, is associated with an increased risk of ischemic stroke.
- Transdermal estrogen therapy combined with progesterone appears safe regarding stroke risk.
- Coronary heart disease risk is not elevated and may decrease with early MHT initiation (within 10 years of menopause or before age 60).
Implications:
- The initiation timing, type of MHT, and individual risk factors are crucial for safe MHT prescription.
- Personalized risk-benefit analysis is essential before commencing MHT.
- Evidence supports safer MHT options and highlights the importance of the 'timing hypothesis'.
Abstract:
Cardiovascular risk is one of the major challenges of menopausal hormone therapy (MHT). Thus, during a consultation of menopause, it is essential to considering the classic cardiovascular risk factors but also those more specific to women in order to evaluate the level of cardiovascular risk: high risk, intermediate risk or low risk. Cardiovascular disease (myocardial infarction or ischemic stroke) are rare disease in women compared to men. However, they represent the leading cause of death in women after menopause in France. Publications of randomized trials have widely questioned the expected benefit of MHT on arterial risk. It should be noted that almost all of these trials concerned the combination of orally conjugated equine estrogens (ECE) associated or not with medroxyprogesterone acetate. Meta-analyses of all randomized trials show an increased risk of ischemic stroke associated with the use of oral MHT while the use of transdermal estrogen therapy combined with progesterone will be safe. The risk of coronary heart disease is not increased and appears to be significantly reduced when the MHT is started less than 10 years after menopause or before the age of 60. These results suggest that the timing of initiation of the MHT, the type of MHT and all of the risk factors should be carefully considered before starting MHT.
Related Concept Videos
Menopause
Cardiovascular Drugs: Classification based on Therapeutic Indications
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
Hormonal Regulation of Blood Pressure
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
Coronary Artery Disease IV: Preventive Measures
Rheumatic Heart Disease III: Medical Management

