Sharif K, Afnan M, Lenton W
Assisted Conception Unit, University of Birmingham, UK.
Hum Reprod. 1995 Jul;10(7):1715-8. doi: 10.1093/oxfordjournals.humrep.a136161.
The technique of embryo transfer can have a great impact on the outcome of in-vitro fertilization (IVF) treatment. Transcervical embryo transfer is a blind procedure and difficulty can unexpectedly arise. Many IVF programmes therefore perform a 'mock' embryo transfer prior to the treatment cycle to determine the most suitable catheter and technique for transfer. This, however, adds an extra separate procedure with time and cost implications. Moreover, as the uterus is mobile, its direction may vary on the day of the embryo transfer from what it was during the mock embryo transfer. Performing mock embryo transfer immediately before the real transfer would circumvent these problems. We report here on 113 embryo transfer procedures where a 'step-wise' mock embryo transfer protocol was performed with a full bladder immediately before the embryo transfer. The number of embryos transferred (mean +/- SD) was 2.6 +/- 0.67, the pregnancy rate per embryo transfer was 45.1%, and the intrauterine implantation rate per embryo transferred was 20.6%.
胚胎移植技术会对体外受精（IVF）治疗的结果产生重大影响。经宫颈胚胎移植是一种盲操作，可能会意外出现困难。因此，许多IVF程序在治疗周期前进行一次“模拟”胚胎移植，以确定最适合的导管和移植技术。然而，这增加了一个额外的单独程序，涉及时间和成本。此外，由于子宫是可移动的，在胚胎移植当天其方向可能与模拟胚胎移植时不同。在真正的胚胎移植前立即进行模拟胚胎移植可以避免这些问题。我们在此报告113例胚胎移植程序，其中在胚胎移植前立即对充满膀胱的患者进行了“逐步”模拟胚胎移植方案。移植的胚胎数量（平均值±标准差）为2.6±0.67，每次胚胎移植的妊娠率为45.1%，每个移植胚胎的宫内着床率为20.6%。
