Management of post-menopausal vaginal atrophy and atrophic vaginitis

The involution of the female genital tract seems to reflect a built-in biological life expectancy, inter-related with the hypothalamic-hypophyseal-ovarian axis. Lower levels of oestradiol have a number of adverse effects, including on the lower urinary tract. The major universal change is vaginal atrophy. The vaginal mucosa becomes thinner and dry, which can produce vaginal discomfort, dryness, burning, itching, and dyspareunia. The vaginal epithelium may become inflamed, contributing to urinary symptoms such as frequency, urgency, dysuria, incontinence, and/or recurrent infections. Moreover, it has been suggested that reduced oestrogen levels may affect periurethral tissues and contribute to pelvic laxity and stress incontinence. In association with hypoestrogenemia, changes in vaginal pH and vaginal flora may predispose post-menopausal women to urinary tract infection. Treatment to date has been based on local hormonal therapy, in the form of vaginal creams, tablets or suppositories. Other routes of hormone administration have also proved to be successful. Both local and systemic administration are both effective in maturation of the vaginal epithelium. However, despite the fact that the benefits of oestrogen replacement in preventing vaginal atrophy and reducing the incidence of related symptoms are well established, such therapy is contraindicated in some women and is not an acceptable option for others. Furthermore, the optimal HT administration route, the dosage regimen, and non-hormonal alternatives for improving symptoms and quality of life of the post-menopausal female population, have not been well studied. This review focuses on the changes involved in vaginal aging and efforts to present a synopsis of the pathophysiology and therapy of atrophic vaginitis and vaginal atrophy.