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Transdermal estrogen with a levonorgestrel-releasing intrauterine device for climacteric complaints: Clinical and endometrial responses



Transdermal estrogen with a levonorgestrel-releasing intrauterine device for climacteric complaints: Clinical and endometrial responses



American Journal of Obstetrics and Gynecology 172(1 Part 1): 114-119



The purpose was to study the effects of intrauterine release of a daily dose of 20 mcg levonorgestrel by an IUD on climacteric symptoms, bleeding pattern, and endometrial histologic features in postmenopausal women receiving transdermal estrogen replacement therapy. 40 parous postmenopausal women were randomly allocated into 2 groups for 1 year. They were required to be parous, to have an intact uterus, and to have had amenorrhea for at least 6 months but less than 5 years. 20 women received a combination of 50 mcg of estradiol per 24 hours delivered transdermally from a patch, and received estrogen pretreatment for 1 month to make insertion of a levonorgestrel-releasing IUD (Levonova), which was installed a month later, easier. This combination was continued for 1 year. The control group of 20 women received an established form of continuous oral estrogen and progestin with a daily dose of 2 mg of estradiol, and 1 mg of norethindrone acetate also administered for 1 year. Checkup visits were scheduled at 3, 6, and 12 months. The climacteric symptoms, bleeding patterns, endometrial thickness, and endometrial changes in biopsy samples were analyzed. The increase in estradiol concentration was similar in both groups, and the mean concentrations of levonorgestrel in the IUD group were 216 +or- 25 pg/ml at 3 months, 209 +or- 11 pg/ml at 6 months, and 212 + 10.5 pg/ml at 12 months. Both treatment regimens effectively relieved climacteric symptoms. The IUD group experienced more days of bleeding, primarily spotting, during the first 3 months than did the oral therapy group but the differences between the groups had disappeared by 6 months. Both treatments resulted in an atrophic endometrium developing from a proliferative one. Two patients in each group dropped out because of bleeding. The levonorgestrel-releasing IUD is a useful alternative mode of progestin administration for certain selected women receiving estrogen replacement therapy.

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Accession: 009662641

Download citation: RISBibTeXText

PMID: 7847516

DOI: 10.1016/0002-9378(95)90095-0


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