Microscopic findings of the nail-fold capillaries : dependence on menopausal status and hormone replacement therapy
1995
Abstract The aim of our controlled study was to evaluate peripheral microcirculation at the level of the nail-fold capillaries in relation to menopause status and postmenopausal hormone replacement therapy (HRT). A total of 105 postmenopausal women were randomly allocated to three different HRT groups of equal size. A fourth group of 35 similar healthy volunteers served as controls. HRT was either peroral or transdermal 17-β-oestradiol with cyclic addition of dydrogesterone or 2.5 mg Tibolone (Org OD 14) in a daily peroral dose. Morphological parameters such as capillary diameters, loop width, papillary width and capillary density, measured by video-capillaroscopy at the nail-fold, were unaffected in early menopause and also under HRT. A significant decrease of capillary blood flow velocity ( P n = 41, v = 0.53 ± 0.16 mm/s) as compared to premenopausal women ( n = 37, v = 0.65 ± 0.15 mm/s). HRT resulted in an increase of capillary blood flow velocity in the nail-fold after 6 and 12 months leading to an increase in capillary blood flow in the order of 20%–30% of the initial values, and was independent of the type of HRT.
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