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Different Pretreatments before Application of GnRH Antagonist Protocol in Controlled Ovarian Hyperstimulation

Journal of Reproduction and Contraception 2011年第4期22卷 201-210页

作者： Ping-xiu HUANG Rong LI Min FU Juan-juan WANG Reproductive Medical Centre Shenzhen Hospital of Peking University Shenzhen 518036 China

Objective To analyze the clinical features and outcome of patients who used different pretreatments before application of gonadotropin-releasing hormone antagonist protocol during in vitro fertilization - embryo transfer （IVF-ET） cycles, and to explore how effective to use the antagonist protocol. Methods A retrospective analysis was performed. All the ET cycles were divided into three groups, group A （n=125） used short acting GnRH agonist before GnRH antagonist treatment, group B （n=113） used short-acting oral contraceptives before GnRH antagonist treatment, group C （n=81） was untreated before GnRH antagonist treatment. All the patients had no tubal fluid, endometrial polyps and no anatomical abnormalities of the uterus, from April 2010 to December 2010. The patient＇s age, dose and duration of gonadotropin （Gn） treatment, the serum LH and E2 levels on the day of hCG injection, the number of oocytes retrieved, the rates of good-quality embryos, the clinical pregnancy rates were compared. At the same time, 261 GnRH agonist long protocol cycles （group D） were selected at the same period as further comparison. Results The patients in group C （32.9 ~ 4.8 years） were significantly older than those in groups A and B （31.6 ___＋3.7 years, 31.2 ___%4.1 years）（P 〈0.05）. The dose and the duration of Gn in group C were significantly lower than those in groups A and B. The serum LH level on the day of hCG injection in group A and group B was significantly lower than that in group C （P 〈0.05）, especially in group A. The endometrium was the thinnest in group B. There were no significant differences in the fertilization rates and the good-quality embryosrates among them. The clinical pregnancy rate of group B decreased significantly compared with groups A and C （P〈0. 05）. The clinical pregnancy rate of group C was the highest among them. There was no significant difference of clinical pregnancy rates between group C and group D （37% vs 40.2%,P〉0.05）. However, the dose （19.8 ±6.6 am

关键词： in vitro fertilization-embryo transfer (IVF-ET) gonadotropin-releasing hormone antagonist short-acting oral contraceptives short-acting agonist

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