@article{3182851, title = "Luteal phase progesterone and estradiol concentrations and their relation to the outcome of IVF/ICSI cycles with controlled ovarian stimulation", author = "Bakas, P. and Simopoulou, M. and Panagopoulos, P. and Salakos, N. and and Siristatidis, Ch", journal = "Clinical and Experimental Obstetrics & Gynecology", year = "2019", volume = "46", number = "5", pages = "727-730", publisher = "7847050 Canada Inc.", issn = "0390-6663", doi = "10.12891/ceog4741.2019", keywords = "Estradiol; Progesterone; Ganirelix; Controlled ovarian stimulation; COS; IVF; ICSI", abstract = "Purpose of Investigation: To examine if the potential changes in progesterone (P) and estradiol (E2) levels during the luteal phase can predict the outcome in IVF/ICSI cycles. Material and Methods: A prospective study of 282 patients with infertility undergoing IVF/ICSI have been included. Serum E2 and P measurements at day of hCG triggering and days 6 and 10 after embryo transfer in conception and non-conception cycles. Results: The ROC curve in predicting clinical pregnancy was calculated at 0.864 (95% CI: 0.841-0.92). A maximum reduction of <= 32 % demonstrated sensitivity of 84.3% and specificity of 80.4%. The corresponding ROC curve for percentage change in P levels was 0.733 with 95% CI: 0.334-0.96. Conclusion: A maximum reduction of 32 % in E2 levels between days 6 and 10 after embryo transfer demonstrated a predictive ability for clinical pregnancy after IVF/ICSI of 86.4% with sensitivity 84.3% and specificity 80.4%." }