冻融胚胎移植三种内膜准备方式临床结局分析

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冻融胚胎移植三种内膜准备方式临床结局分析

发表时间:2016-04-28T15:01:50.050Z 来源:《徐州医学院学报》2015年11月第35卷总第21期作者:蔡任飞洪青青郜虹媛匡延平[导读] 上海交通大学医学院附属第九人民医院冻融胚胎移植三种内膜准备方式均有效可靠,临床可根据患者不同情况合理选择。

(上海交通大学医学院附属第九人民医院 200011)

【摘要】目的:比较冻融胚胎移植周期三种内膜准备方式的临床结局。方法:比较三种内膜准备方式A组自然周期、B组促排卵周期、C组激素替代周期的冻融胚胎移植的临床妊娠率、种植率、流产率、宫外孕率、继续妊娠率。结果:共完成841个冻融胚胎移植周期,其中A组170个,B组251个,C组403个。三组临床妊娠率,种植率,流产率,宫外孕率,继续妊娠率组间比较均无显著差异。三组移植卵裂期胚胎周期组间比较在临床妊娠率、种植率、流产率、宫外孕率、继续妊娠率相比差异均无显著性,三组移植囊胚周期组间比较在临床妊娠率、种植率、流产率、继续妊娠率相比差异均无显著性。囊胚移植在各组中均无宫外孕发生。结论:冻融胚胎移植三种内膜准备方式均有效可靠,临床可根据患者不同情况合理选择。

【关键词】冻融胚胎;内膜准备

Objective:To assess the clinical outcomes of three different endometrial preparation methods used in frozen-thawed embryo transfer(FET)treatment. Methods :Three different endometrial preparation methods used in FET treatment were assessed in the study .They are natural cycle FET(group A),ovulation induction cycle FET(group B),hormone replacement artificial cycle(group C).The different endometrial preparation methods were compared based on clinical pregnancy rate ,implantation rate ,miscarriage rate ,ectopic pregnancy rate and ongoing pregnancy rate. Result: From 2014.1 to 2014.12, a total of 841 FET treatments were completed and included in this review. Among 841 completed FET treatments, 170 patients in group A underwent NC-FET, 251 patients in group B underwent ovulation induction cycle FET and 403 patients in group C underwent AC-FET. Clinical pregnancy rates ,implantation rates for group A, B and C were 37% (115/311), 41.6% (198/476), 35.5% (267/753) respectively; miscarriage rates for group A, B and C were 9.1% (8/88), 9.9% (14/142), 8.7% (18/208) respectively; ectopic pregnancy rates for group A, B and C were 3.4% (3/88), 0.7% (1/142), 1.9% (4/208) respectively; and ongoing pregnancy rate for group A, B and C were 45.3% (77/170), 50.6% (127/251), 46.2% (186/403) respectively. No significant difference was observed among all three groups. For cleavage stage embryo transfer, no significant difference was found in clinical pregnancy rate, implantation rate, miscarriage rate, ectopic pregnancy rate, and ongoing pregnancy rate. For blastocyst stage transfer, no significant difference was found in clinical pregnancy rate, implantation rate, abortion rate, and ongoing pregnancy rate. Also, for blastocyst stage embryo transfer, no ectopic pregnancy occurred among all three groups .Conclusion: All three different endometrial preparation methods are effective and reliable for FET treatment. No significant advantage of one specific approach to prepare the endometrial for FET. Clinically, under different circumstances, a reasonable approach can be made for patients. Key Word:Frozen thawed embryo transfer;endometrial preparation

我科自2011年起采取全胚冷冻策略,全面开展冻融胚胎移植,它在提高妊娠率、降低OHSS风险、降低多胎率、降低宫外孕率等多方面起着重要的作用。FET内膜准备方式有自然周期、促排卵周期、激素替代周期。本研究回顾性分析冻融胚胎移植三种内膜准备方式的临床结局。

1.材料与方法

1.1研究对象

回顾分析2014.01~2014.12期间本院辅助生殖科接受冻融胚胎移植的患者的临床资料。患者年龄21~48岁,不孕年限0~16年,不孕因素包括输卵管阻塞、子宫内膜异位症、多囊卵巢综合症、男方因素、以及不明原因不孕。按患者内膜准备方式的不同分成A组自然周期B组促排卵周期C组激素替代周期。

1.2内膜准备

1.2.1A组自然周期月经周期规律,周期在26~32天之间的患者考虑此方案。于月经周期第10天开始监测排卵,当卵泡达到

18~20mm、内膜≥8mm、E2达到150pg/mol,或出现LH≥10miu/ml时注射HCG5000u诱发排卵。自排卵日后三天移植D3冻融卵裂期胚胎,自排卵后五天移植冻融囊胚,排卵后一天加用达芙通和安琪坦黄体支持。

1.2.2B组促排卵周期月经周期35~40天、排卵障碍的患者考虑此方案。月经周期在35天左右的患者于月经周期第三天起口服来曲唑5mg qd*3,周期35天以上的患者月经周期第三天起口服来曲唑5mg qd*5,均于月经周期第十天就诊,若卵泡≥14mm隔天就诊,若卵泡≤14mm,予HMG150u隔天肌注,于卵泡达到18~20mm,内膜≥8mm,E2达到150pg/mol时注射HCG5000u诱发排卵。自排卵日后三天移植D3冻融卵裂期胚胎,自排卵后五天移植冻融囊胚,排卵后一天加用达芙通和安琪坦黄体支持。另有部分患者单纯用HMG促排,从周期第十天就诊,监测卵泡及诱发排卵同上述。

1.2.3C组激素替代周期于月经周期第三天开始口服17雌二醇(芬吗通)8mg每日,第14日超声监测,同时血雌二醇检验,若内膜≥8mm,E2≥150pg/mol时加用地屈孕酮40mg每日,联合阴道用微粒化黄体酮胶囊(安琪坦)400mg每日转化内膜,三天后解冻D3卵裂期胚胎移植,五天后解冻囊胚移植。

1.3冻融胚胎

新鲜周期取卵,体外受精及胚胎培养。均按本中心常规进行,所有胚胎均来源非降调节取卵周期。冻融过程为玻璃化冷冻法,胚胎质量评估采用G1-5分级方法。1级卵裂球大小均匀,胞质均质透明无碎片;2级卵裂球均匀有少量碎片(<20%);3级卵裂球大小不均等,无碎片;4级卵裂球不均等,碎片较多(20%-50%);5级卵裂球不能识别,大量碎片(>50%)。取卵周期1~2级胚胎冷冻保存,3级及以上胚胎继续培养至囊胚形成后冷冻。胚胎解冻后若卵裂球破损>50%放弃移植。

1.4妊娠判断标准

分裂期胚胎移植后14天,囊胚移植后12天血HCG>25miu/ml为生化妊娠,临床妊娠标准为胚胎移植28天,B超检查显示妊娠囊者。

1.5统计学分析

采用SPSS17.0软件进行数据分析统计,计量资料采用单因素方差分析,计数资料采用X2检验,P<0.05为差异有统计学意义。

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