Abstract
Objective: To determine factors that affect the success rate of GnRH antagonist protocol in in vitro fertilization (IVF) treatment.
Design: Retrospective cohort study.
Patients: Patients who underwent IVF cycle with their first GnRH antagonist protocol.
Intervention: Antagonist protocol during IVF treatment. The main outcome measurements were; Number of retrieved oocytes, embryo quality and pregnancy rate.
Results: Gravidity was negatively correlated with number of eggs (p = 0.017), while total follicle number ≥15 (p = 0.044) and E2 on day of human chorionic gonadotropin (HCG) (p = 0.000) had a positive correlation with number of eggs. Maximum follicle size at HCG administration showed a trend toward an inverse correlation (p = 0.053). Addition of LH to drug stimulation was negatively correlated with number of eggs in comparison to rFSH only (p = 0.013 and 0.0000, respectively). Age and number of frozen eggs were negatively correlated with successful pregnancy (p = 0.025 and 0.004, respectively), while embryo quality, gravidity and number of embryos were positive (p = 0.011 and 0.014, respectively).
Conclusion: Controlled parameters like timing of antagonist start, duration of antagonist and the optimal leading follicle diameter for HCG triggering had no effect on treatment outcomes.
Chinese abstract
目的:确定在体外受精(IVF)治疗中影响GnRH拮抗剂方案成功的因素。设计:回顾性队列研究。患者:进行IVF周期,第一次应用GnRH拮抗剂方案的患者。干预:IVF中应用拮抗剂方案。主要测定结果:取卵数、胚胎质量和妊娠率。
结果:妊娠与卵子数呈负相关(p = 0.017),然而当总卵泡数≥15个 (p = 0.044) ,注射人绒毛膜促性腺激素(HCG)日的E2 (p = 0.000)与卵子数呈正相关,与注射HCG日最大卵泡大小呈负相关趋势(p =0.053)。药物刺激中添加的LH与卵泡数呈负相关,与rFSH比较只有(分别为p=0.013 、 P=0.0000)年龄和冷冻卵子数与成功妊娠呈负相关(分别为p=0.025 ,p=0.004),然而胚胎质量,妊娠和胚胎数呈正相关。(p =0.011,p=0.014).
结论:控制的参数如拮抗剂开始的时间,拮抗剂应用的时间和最优的主导卵泡的直径对HCG诱导排卵治疗结局没有影响。
Declaration of interest
The authors declare no conflicts of interest. This work did not receive financial support.