Researchers examined data from 15 observational studies with a total
of more than 300,000 women, including almost 13,000 women who
survived events like a heart attack or stroke after menopause.
Compared with women who went through menopause at age 50 or 51,
women who experienced premature menopause, before age 40, were 55%
more likely to have events like a heart attack or stroke after
menopause. With early menopause, from age 40 to 44, women had a 30%
greater risk of cardiovascular events after menopause; with
relatively early menopause, from age 45 to 49, the increased risk
was 12%.
"Heart disease is a leading cause of illness and death for women,"
said senior study author Gita Mishra of the University of Queensland
in Brisbane, Australia.
"These findings will help to identify women at most risk of
cardiovascular disease for closer monitoring and earlier diagnosis
and even prevention of the disease," Mishra said by email.
Women go through menopause when they stop menstruating. As the
ovaries curb production of the hormones estrogen and progesterone,
women can experience symptoms ranging from vaginal dryness to mood
swings, joint pain and insomnia.
Earlier menopause has previously been linked to an increased risk of
heart disease, osteoporosis, diabetes and sleep problems. It can
also leave women with fewer reproductive years, particularly when
it's preceded by premature ovarian failure, when the ovaries stop
working before age 40.
In the current study, women were 50 years old on average when they
went through menopause. Only 1.2% of the women in the study had
premature menopause before age 40; and 4.7% experienced early
menopause from age 40 to 44.
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Among women who had events like a heart attack or stroke after
menopause, an average of 13.5 years passed between menopause and
these cardiovascular events, researchers report in the Lancet Public
Health.
Compared to women who didn't experience events like a heart attack
or stroke, women who did were less likely to be educated, and more
likely to be obese, and current smokers with a history of high blood
pressure.
The study wasn't a controlled experiment designed to prove whether
or how menopause timing might directly impact cardiovascular health.
One limitation of the analysis is that many of the cardiovascular
events were self-reported by study participants, not confirmed by
medical records. It's also possible that use of hormone therapy
after menopause may have impacted the results, the study team notes.
Still, the results highlight a need for women to be hypervigilant
about heart health if they go through menopause earlier in life,
Mishra said.
"For women who are experiencing earlier menopause, active management
of other risk factors for cardiovascular disease, such as avoiding
cigarette smoking and maintaining a healthy body weight are all the
more important for reducing their overall risk of cardiovascular
disease," Mishra advised. "These women may also consult with health
professionals for regular monitoring of their risk of cardiovascular
disease."
SOURCE: http://bit.ly/2Mut8yV Lancet Public Health, online October
3, 2019.
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