AJOG:补充维生素D可以提高做试管婴儿的妊娠成功率吗?

2021-05-18 MedSci原创 MedSci原创

观察性研究表明,缺乏维生素D的女性IVF的成功率较低,那补充维生素D是否能提高临床妊娠率?

提高体外受精(IVF)成功率是一个亟待解决的问题。观察性研究表明,缺乏维生素D的女性IVF的成功率较低,但补充维生素D是否能提高临床妊娠率尚不明确

SUNDRO试验是一项双中心的随机优势性、双盲的、安慰剂为对照的临床试验,于2016年10月至2019年1月期间招募了18-39岁的维生素D水平较低(外周血25-羟维生素D<30 ng/ml)、血清钙≥10.6 mg/dl、体重指数(BMI) 18-25 kg/m2、抗苗勒氏管激素> 0.5 ng/ml的女性,予以其常规IVF或卵胞浆内单精子注射(ICSI)的第一、第二或第三周期治疗。

主要结果是每个周期的累积临床妊娠率,包括通过新鲜或冷冻胚胎移植获得的妊娠。临床妊娠的定义是宫内妊娠囊内有活胎。次要结果包括所用促性腺激素的总剂量、胚胎学变量(获得的卵母细胞数量、获得的适宜卵母细胞数量、受精率和优质胚胎率)和临床结果(流产率和活产率)。

两组的妊娠成功率

共630名女性在开始IVF周期前2-12周随机接受单剂60万IU的维生素D3(n=308)或安慰剂(n=322)。在治疗组和安慰剂组中,分别有113名(37%)和130名(40%)女性实现了临床妊娠(p=0.37)。接受维生素D3干预的女性临床妊娠的风险比(RR)为0.91(95%CI 0.75-1.11)。与安慰剂相比,补充维生素D3没有显著改善次要结果。

亚组分析结果

根据BMI、年龄、IVF适应症、卵巢储备、给药时间间隔和周期起始时间以及25-羟基维生素D基础水平进行的探索性亚组分析显示,没有哪个亚组可以从补充维生素D3中获益

总而言之,在IVF周期中,正常体重、卵巢储备完好的女性,即使维生素D水平较低,单次口服60万IU维生素D3并不会增加临床妊娠的机会

原始出处:

Somigliana Edgardo,Sarais Veronica,Reschini Marco et al. Single oral dose of vitamin D supplementation prior to in vitro fertilization and embryo transfer in normal weight women: the SUNDRO randomized controlled trial.[J] .Am J Obstet Gynecol, 2021, https://doi.org/10.1016/j.ajog.2021.04.234

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