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Objective: Receptors for estrogen and progesterone are present in the pelvic floor, and therefore, postmenopausal hormone therapy may affect its function. We compared the former use of estradiol-progestogen postmenopausal hormone therapy in nonhysterectomized women with a uterine prolapse surgery (N = 12,072) and control women (N = 33,704)., Methods: The women with a history of uterine prolapse operation were identified from the Finnish National Hospital Discharge Register, and the control women from the Finnish Central Population Register. The use of hormone therapy was traced from the national drug reimbursement register, and the odd ratios with 95% CIs for prolapse were calculated by using the conditional logistic regression analysis., Results: The women with uterine prolapse had used hormone therapy more often than control women (N = 4,127; 34.2% vs N = 9,189; 27.3%; P < 0.005). The use of hormone therapy was accompanied by significant (23%-53%) elevations in the risk for prolapse, being higher with longer exposure. The risk elevations (33%-23%) were comparable between sole norethisteroneacetate-estradiol and sole medroxyprogesteroneacetate-estradiol therapy. The use of estradiol in combination with a levonorgestrel releasing intrauterine device was accompanied by a 52% elevation., Conclusions: The postmenopausal use of estradiol in combination with various progestogen regimens may weaken the pelvic floor, resulting in uterine prolapse. This data should be incorporated into the information given to the users of estradiol-progestogen hormone therapy.

Objective: Genital prolapse is frequent in postmenopausal women; it describes the loss of support to the pelvic organs, resulting in a herniation of these into the vaginal channel. This problem affects 50% of parous women, and at least 50% of all women develop a mild form of genital prolapse after pregnancy., Methods: An extensive literature review from 1990 to 2008 was performed on prolapse etiology and its risk factors; analyzing the data, we reviewed the genetic and biological aspects, age-related prolapse, biological tissue modifications, surgical problems, pelvic musculature modifications, and neuropathy., Results: Data suggested that aging, pelvic trauma, and surgery evoke tissue denervation and devascularization, anatomic alterations, and increased degradation of collagen; all of these may lead to a decrease in mechanical strength and predispose an individual to prolapse. It has been demonstrated that there is a reduction in protein content and estrogens in uterosacral ligaments, in the vagina, and in the parametrium of women with prolapse. This is a possible explanation for why many surgical procedures to correct prolapse fail and recurrences after surgical correction are frequent., Conclusions: Even if the etiology of pelvic prolapse is poorly defined and multifactorial, aging risk factors, such as biomechanical abnormalities in connective tissue composition, hormonal deficiency, and irregular tissue metabolism, are nonmodifiable and therefore largely stated in clinical practice. Regardless of future developments, based on the reported findings, prolapse therapy will be more influenced by genetics, biological pelvic changes, changes in tissue homeostasis, and topical hormones, rather than general pelvic corrective surgical anatomy.

Objective: Testing a hypothesis that pelvic organ prolapse (POP) is a focal manifestation of disordered connective tissue, we evaluated whether there is an association between POP and history of fracture., Design: This was a case-control study. Baseline data were from postmenopausal women aged 60 years or older enrolled in the Women's Health Initiative Estrogen Plus Progestin trial. Distinct variants (cystocele, rectocele, and uterovaginal) and severity (mild, moderate, or severe) of POP were recognized. A history of "fracture after age 55" was considered as the event of interest., Results: Moderate to severe POP was identified in 9% of 11,096 participants aged 60 years or older. Women with moderate to severe rectocele were significantly more likely to report fracture (odds ratio: 1.37, 95% CI: 1.06-1.77, P = 0.02) compared with those with absent to mild prolapse. Of the subset of participants who underwent bone mineral density assessment, those with moderate to severe prolapse demonstrated significantly lower whole-body bone mineral density ([beta] = -0.03, SE 0.02); this difference was of borderline significance (P = 0.05) compared with that for participants with absent to mild POP. Multivariate logistic regression analysis confirmed an independent association between moderate to severe rectocele and fracture (odds ratio: 1.45, 95% CI: 1.08-1.95, P = 0.01)., Conclusions: We demonstrate a relationship between moderate to severe POP and low bone mineral density in postmenopausal women enrolled in the Women's Health Initiative Estrogen Plus Progestin trial. Our findings of an association between clinically significant (moderate to severe) POP, specifically rectocele, and a history of fracture suggest that suboptimal collagen status purported to associate with POP may also involve bone collagen and hence translate into skeletal compromise.