Dynamic monitoring of menopause hormone therapy and defining the cut-off value of endometrial thickness during uterine bleeding |
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Authors: | Qiu Sheng Jun Yang Qiaoling Zhao Fen Li |
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Institution: | 1.Center of Maternal and Child Health, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China2.Department of Ultrasound, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China |
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Abstract: | The aim of this study was to evaluate the effects of low-dose tibolone therapy on ovarian area, uterine volume and endometrial thickness, and define the cut-off value of endometrial thickness for curettage during uterine bleeding. We followed 619 postmenopausal women, aged 40-60 years, for two years. There were 301 subjects in the low-dose tibolone treatment group and 318 subjects in the control group. The ovarian area, uterine volume and endometrial thickness in all participants were measured by transvaginal ultrasound prior to, one and two years post enrollment, respectively. Endometrial specimens were collected from all subjects with abnormal uterine bleeding during the follow-up period. We found that the uterine volume in the treatment group was greater than that in the control group, and the difference was significant (P<0.05), but there were no significant differences in ovarian area and endometrial thickness between the two groups (P>0.05). When the cut-off value for endometrial thickness was 7.35 mm, the sensitivity and specificity were 100% and 79.07%, respectively, and 85.71% and 93.02% when 7.55 mm was set as the cut-off during tibolone therapy. The results indicate that low-dose tibolone therapy may postpone uterine atrophy and the cut-off value of endometrial thickness may be appropriately adjusted for curettage. |
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Keywords: | low-dose tibolone ovarian area uterine volume endometrium dynamic monitoring cut-off value |
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