Ronit Beck-Fruchter1,2, Simon Nothman3,4, Shira Baram3, Yoel Geslevich3, Amir Weiss3,4. 1. Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel. Beck_r@technion.ac.il. 2. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. Beck_r@technion.ac.il. 3. Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel. 4. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
Abstract
PURPOSE: Does an association exist between serum progesterone and estradiol levels and live birth rates in artificial cycle frozen embryo transfer (AC-FET)? METHODS: Retrospective cohort study was based on prospectively collected data at a university-affiliated fertility center. Included were all cycles using an artificial endometrial preparation with estradiol hemihydrate (Estrofem, 2 mg/8 h) and vaginal progesterone (Endometrin 100 mg/8 h), autologous oocytes, and cleavage stage embryo transfers. Serum progesterone and estradiol levels were measured 14 days after FET. A total of 921 cycles in 568 patients from to December 2010 to June 2019 were investigated. Live birth was the primary outcome measure. RESULTS: Significant association was found between live birth and progesterone as well as estradiol levels (progesterone 14.65 vs 11.62 ng/ml, p = 0.001; estradiol 355.12 vs 287.67 pg/ml, p = 0.001). A significant difference in live birth rate was found below and above the median progesterone level (10.9 ng/ml, p = 0.007). Lower estradiol level was significantly associated with lower live birth rate (< 188.2 pg/ml 8.3%, > 263.1 pg/ml 16%, p = 0.02). CONCLUSIONS: Serum progesterone and estradiol levels impact live birth rate in AC-FET.
PURPOSE: Does an association exist between serum progesterone and estradiol levels and live birth rates in artificial cycle frozen embryo transfer (AC-FET)? METHODS: Retrospective cohort study was based on prospectively collected data at a university-affiliated fertility center. Included were all cycles using an artificial endometrial preparation with estradiol hemihydrate (Estrofem, 2 mg/8 h) and vaginal progesterone (Endometrin 100 mg/8 h), autologous oocytes, and cleavage stage embryo transfers. Serum progesterone and estradiol levels were measured 14 days after FET. A total of 921 cycles in 568 patients from to December 2010 to June 2019 were investigated. Live birth was the primary outcome measure. RESULTS: Significant association was found between live birth and progesterone as well as estradiol levels (progesterone 14.65 vs 11.62 ng/ml, p = 0.001; estradiol 355.12 vs 287.67 pg/ml, p = 0.001). A significant difference in live birth rate was found below and above the median progesterone level (10.9 ng/ml, p = 0.007). Lower estradiol level was significantly associated with lower live birth rate (< 188.2 pg/ml 8.3%, > 263.1 pg/ml 16%, p = 0.02). CONCLUSIONS: Serum progesterone and estradiol levels impact live birth rate in AC-FET.
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