期刊
GYNECOLOGIC AND OBSTETRIC INVESTIGATION
卷 68, 期 1, 页码 33-39出版社
KARGER
DOI: 10.1159/000211676
关键词
Tibolone; Transdermal estradiol; Medroxyprogesterone acetate; Menopause; Coagulatory factors; Lipoprotein(a); Factor VII; Venous thrombosis
资金
- University of Rome 'Sapienza'
Background/Aim: The aim of this prospective controlled study was to compare the effects of two therapies for menopause on factor VII (FVII) and hemostatic variables. Methods: Postmenopausal women were assigned to receive one of the following treatments: transdermal estradiol (TTS E2; 50 mu g) combined in a continuous sequential regimen with oral medroxyprogesterone acetate (MPA; 10 mg/day for 12 days) (group A; n = 20), tibolone (2.5 mg/day) (group B; n = 21) or placebo (group C; n = 19). Sixty women completed the 1-year treatment and underwent follow-up examinations after 3, 6 and 12 months. Results: TTS E2/MPA induced various changes in procoagulatory factors. At 12 months, fibrinogen, activated FVII (FVIIa) and coagulative FVII (FVIIc) had increased by 10.7, 12.9 and 3.7%, respectively. Among the fibrinolytic factors, plasminogen and alpha 2-antiplasmin increased by 11.3 and 7.2%, respectively. Lipoprotein(a) [Lp(a)] and antithrombin III (ATIII) did not show any significant variation. Tibolone induced some changes toward a more homogeneous anti-thrombotic profile. Fibrinogen, FVIIa and FVIIc decreased significantly by 7.5, 8.1 and 21.3%, respectively. Plasminogen increased (by 11.8%) and Lp(a) decreased (by 28.4%). ATIII was unchanged with tibolone therapy. Conclusion: Our results show that tibolone induces a significant reduction in FVIIc and Lp(a) and a greater enhancement of factors promoting fibrinolysis than the TTS E2/MPA regimen. Copyright (c) 2009 S. Karger AG, Basel
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