Effects of menopause on aortic root function in hypertensive women.
OBJECTIVE
This study sought to determine whether the natural decrease in sex hormones that occurs during menopause in hypertensive women plays a role in aortic root stiffness.


BACKGROUND
The effect of menopause-induced sex hormone deprivation on aortic root function is not known; however, it is of special interest in hypertensive subjects, whose aortic elastic properties are already compromized.


METHODS
Eighteen women with essential hypertension were followed-up for 3 years, during which time they went through menopause (group A) and were compared with 22 age-matched hypertensive women with normal menses (group B) and 20 hypertensive men (group C). Blind echocardiographic tracings and simultaneous blood pressure measurements were obtained after at least 30 medication-free days, both at baseline and 3.5 years later.


RESULTS
Aortic root function tended to be aggravated in both groups B and C, but not significantly so, with no between-group differences (p = NS), whereas it deteriorated in group A. Thus, in menopausal hypertensive subjects, aortic root systolodiastolic percent change decreased (from 6.7% to 4.9%, p < 0.0001 [p = 0.002 vs. group B; p = 0.006 vs. group C]); cross-sectional compliance decreased (from 18 to 13 cm2/mm Hg, p < 0.0001 [p = 0.002 vs. group B; p = 0.03 vs. group C]); Peterson's elastic modulus increased (from 1.2 to 1.9 dynes/cm2, p = 0.0006 [p = 0.003 vs. group B; p = 0.005 vs. group C]); aortic stiffiness index increased (from 7.0 to 10.8, p = 0.0008 [p = 0.004 vs. group B; p = 0.007 vs. group C]); and aortic root distensibility decreased (from 1.8 to 1.2 dynes/cm2, p < 0.0001 [p = 0.0003 vs. group B; p = 0.007 vs. group C]). Serum lipids did not change significantly in any group (p = NS).


CONCLUSIONS
In hypertensive women, the effect of menopause on the elastic properties of the aortic root is abrupt and devastating.
Department of Cardiology, University of Athens, Hippokration Hospital, Greece.
E A
EA
Karpanou
G P
GP
Vyssoulis
S A
SA
Papakyriakou
M G
MG
Toutouza
P K
PK
Toutouzas
D001011:Aorta / Q000000981:diagnostic imaging / Q000503:physiopathology*; D003187:Compliance; D004452:Echocardiography; D004548:Elasticity; D005260:Female; D005500:Follow-Up Studies; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006439:Hemodynamics; D006801:Humans; D006973:Hypertension / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008593:Menopause / Q000502:physiology*; D008875:Middle Aged
D012739:Gonadal Steroid Hormones