Effects of estrogen and progestin on aortic size and compliance in postmenopausal women

G. D. Giraud, M. J. Morton, R. A. Wilson, K. A. Burry, L. Speroff, W. H. Hindle, C. March, C. Von der Ahe, R. Unzelman

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

OBJECTIVE: Our purpose was to determine whether sex steroids alter aortic size and compliance in postmenopausal women. STUDY DESIGN: Twenty-six postmenopausal women were randomized to receive either conjugated estrogens 0.625 mg per day (group 1) or conjugated estrogens 0.625 mg per day and medroxyprogesterone 2.5 mg per day (group 2). Aortic cross-sectional area was measured by magnetic resonance imaging before and after 3 months of hormone therapy. RESULTS: Estradiol levels increased in both group 1 and group 2 (p < 0.0001). Ascending aortic cross-sectional area increased from 439 ± 7 mm2 to 466 ± 7 mm2 in group 1 (p < 0.006) but was unchanged in group 2. Within the range of aortic pressures studied, no change in aortic compliance could be detected. CONCLUSION: Estrogen therapy in postmenopausal women was associated with an increase in aortic size; but this effect was not detectable with the addition of progestin. The potential antagonistic effect of progestin on estrogen-induced aortic enlargement suggests that the favorable cardiovascular effects of postmenopausal estrogen therapy cannot be automatically extended to the combination estrogen-progestin.

Original languageEnglish (US)
Pages (from-to)1708-1718
Number of pages11
JournalAmerican journal of obstetrics and gynecology
Volume174
Issue number6
DOIs
StatePublished - 1996

Keywords

  • Estrogen
  • aorta
  • menopause
  • progestin

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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