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The most frequent symptoms of the climacteric syndrome are hot flushes. Although usually they disappear after a few years, hot flushes persist for five or more years in a quarter of the affected women. Aetiology and pathomechanism are not clear. Apart from oestrogen deficiency other diseases should be evaluated as potential causes of hot flushes such as psychosomatic disorders, hyperthyroidism and a neoplasm. The treatment of the first choice is an oestrogen replacement therapy. By assaying a single serum sample for oestradiol an oestrogen replacement therapy can be monitored reliably only in the case of transdermal application.

Objective: Examining the consequences of temporary postoperative hormone replacement therapy following hysterectomy for the function of the ovaries and the subjective well-being of women., Material and Methods: Hormone profiles (Estradiol, FSH, LH, Testosterone, DHEA) and typical estradiol deficiency phenomena were investigated prospectively in premenopausal hysterectomized women with intact ovaries. Group 1 (n = 21) was replaced transdermally following surgery for 3 weeks with estradiol patch 0.05 mg daily. Group 2 (n = 21) got no hormones., Results: Group 1 had a remarkable decrease of estradiol after 10 days to 59% and after 6 weeks to 71% of the starting point. Gonadotropins showed an increase in this group. In group 2 without replacement there was only a small decrease of estradiol after 10 days and after 6 weeks the level was higher than before hysterectomy. Testosterone also decreased in group 1 to 64% of the level before surgery after 6 weeks, whereas in the comparing group it was 87%. On the other hand in group 1 only 2 of 21 women, but 10 of 21 in group 2 showed climacteric-like symptoms., Conclusions: HRT over 3 weeks induces ovarian suppression, which is still seen 6 weeks after hysterectomy. But hormonally treated women have clearly less subjective complaints.