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Abstract：
This study aims to investigate whether oral contraceptive pills (OCP) pretreatment impairs pregnancy outcomes in polycystic ovary syndrome (PCOS) women undergoing GnRH agonist protocol. A total of 1025 couples underwent their first cycle of in vitro fertilization. Patients were divided into GnRH agonist protocol group (LP group) and OCP dual suppression GnRH agonist protocol group (OC-LP group). Logistic regressions were performed to estimate the risk factors affecting live birth following fresh embryo transfer between groups. Frozen-thawed embryos from the first oocyte retrieval cycle were replaced into uterus for women did not get live birth. Cumulative live birth rates between groups were compared by Kaplan-Meier survival analysis. Serum luteinizing hormone level, endometrial thickness, and live birth rate were significantly reduced in the OC-LP group in fresh cycle. Thinner endometrium, higher progesterone, and poorer embryo quality were independent risk factors for failure in getting live birth following fresh embryo transfer. However, cumulative live birth rate, medium embryo transfer attempts required to achieve live birth were comparable between groups. OCP pretreatment in GnRH agonist protocol does not seem to impair the pregnancy outcome when calculated by cumulative live birth rate in PCOS women.
摘要：
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