Menopause and accelerated aortic stiffness

Area of Science:

• Cardiovascular Health
• Women's Health
• Aging Research

Background:

• Estrogen is thought to be cardioprotective in women, leading to the belief that menopause increases cardiovascular disease (CVD) risk.
• Aortic stiffness is a known independent predictor of CVD, but its association with menopause has been unclear.

Purpose of the Study:

• To investigate the relationship between menopausal status changes and aortic stiffness.
• To determine if menopause transition accelerates aortic stiffness.

Main Methods:

• A longitudinal study of Australian women aged 40-80 years (n=469, then n=323) tracked over 14 years.
• Menopausal status was assessed using the Stages of Reproductive Aging in Women criteria.
• Aortic stiffness was measured non-invasively using carotid-femoral pulse wave velocity, with statistical analysis accounting for covariates.

Main Results:

• No association was found between the menopausal transition and accelerated aortic stiffness.
• A significant acceleration of aortic stiffness (0.122 m/s/year) was observed in the late postmenopause phase (8+ years).
• This acceleration persisted after controlling for age and traditional cardiovascular risk factors.

Conclusions:

• The menopausal transition itself does not significantly alter aortic stiffness beyond normal aging.
• Accelerated aortic stiffness in late postmenopause may elevate cardiovascular risk in this demographic.
• Further research into managing CVD risk in postmenopausal women is warranted.