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- W2070295572 abstract "To investigate uterine effects of unopposed ultralow-dose transdermal estradiol administered to postmenopausal women for 2 years.Postmenopausal women (n = 417), aged 60-80 years, with a uterus and with bone mineral density that was normal for age (z score >or=-2.0) were randomly assigned to receive unopposed transdermal estradiol (14 microg per day) or identical placebo patch. We evaluated effects on endometrial histology, vaginal bleeding, and vaginal epithelial cell maturation.At baseline, estradiol and placebo groups were similar in age (67 +/- 5 years) and in median baseline serum estradiol level (4.8 pg/mL, interquartile range 2.7, 8.0 pg/mL). In the estradiol group, median estradiol level increased to 8.6 pg/mL, (interquartile range 4.4, 13.9 pg/mL, P < .001). In the estradiol group, focal atypical endometrial hyperplasia developed in 1 woman, and adenosarcoma of the uterus developed in 1 woman. The placebo group had no endometrial hyperplasia. Endometrial proliferation occurred in 8.5% of the estradiol group and in 1.1% of the placebo group (P = .06). Incidence of vaginal bleeding was 12.4% in the estradiol group and 8.6% in the placebo group (P = .3). Vaginal epithelial cells showed greater maturation in the estradiol group than in the placebo group (P < .001) but less than typically observed with standard doses of estrogen.During 2 years of treatment with ultralow-dose unopposed estradiol, treatment and placebo groups had similar rates of endometrial hyperplasia, endometrial proliferation, and vaginal bleeding. This therapy apparently causes little or no endometrial stimulation.I." @default.
- W2070295572 created "2016-06-24" @default.
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- W2070295572 date "2005-04-01" @default.
- W2070295572 modified "2023-09-24" @default.
- W2070295572 title "Uterine and Vaginal Effects of Unopposed Ultralow-Dose Transdermal Estradiol" @default.
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- W2070295572 doi "https://doi.org/10.1097/01.aog.0000157116.23249.52" @default.
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