A high response to controlled ovarian stimulation induces premature luteinization with a negative impact on pregnancy outcomes in a gonadotropin-releasing hormone antagonist cycle
| Autor: | In Ok Song, Sun Hwa Cha, Chan Woo Park, Kwang Moon Yang, Eung Gi Min, Hye Ok Kim, Hwa Seon Koo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
In vitro fertilisation medicine.drug_class business.industry medicine.medical_treatment Antagonist Premature luteinization Sperm In vitro fertilization-embryo transfer Gonadotropin-releasing hormone antagonist Embryo transfer Pregnancy outcome Human chorionic gonadotropin Andrology Pregnancy rate Endocrinology Reproductive Medicine Internal medicine medicine Original Article Prospective cohort study business |
| Zdroj: | Clinical and Experimental Reproductive Medicine |
| ISSN: | 2233-8241 2233-8233 |
| Popis: | Objective: The goal of this study was to investigate the relationship between serum progesterone (P4) levels on the day of human chorionic gonadotropin (hCG) administration and the pregnancy rate among women undergoing controlled ovarian stimulation for in vitro fertilization (IVF) or intracytoplasmic sperm injection-embryo transfer (ICSI-ET) using a flexible antagonist protocol. Methods: This prospective study included 200 IVF and ICSI-ET cycles in which a flexible antagonist protocol was used. The patients were divid ed into five distinct groups according to their serum P4 levels at the time of hCG administration (0.80, 0.85, 0.90, 0.95, and 1.00 ng/mL). The clinical pregnancy rate (CPR) was calculated for each P4 interval. Statistically significant differences were observed at a serum P4 level of 0.9 ng/ mL. These data suggest that a serum P4 concentration of 0.9 ng/mL may represent the optimal threshold level for defining premature lutein ization (PL) based on the presence of a significant negative impact on the CPR. Results: The CPR for each round of ET was significantly lower in the PL group defined using this threshold (25.8% vs. 41.8%; p = 0.019), and the number of oocytes retrieved was significantly higher than in the non-PL group (17.3 ± 7.2 vs. 11.0 ± 7.2; p = 0.001). Elevated serum P4 levels on the day of hCG administration were associated with a reduced CPR, despite the retrieval of many oocytes. Conclusion: Measuring serum P4 values at the time of hCG administration is necessary in order to determine the optimal strategy for embryo transfer. |
| Databáze: | OpenAIRE |
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