Phillips Simon J, Dean Nicola L, Buckett William M, Tan Seang Lin
McGill Reproductive Center, Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada.
J Assist Reprod Genet. 2003 Nov;20(11):461-4. doi: 10.1023/b:jarg.0000006708.26464.23.
To investigate whether the consecutive embryo transfer of day 3 embryos and of blastocyst protects against failure to reach embryo transfer and provides additional pregnancies.
An embryo transfer was performed on day 3 following which all remaining embryos were cultured to the blastocyst stage for a possible second transfer.
One hundred and forty-two patients were selected for extended culture. Thirty-two of these patients did not develop blastocysts in culture, however, there were 12 pregnancies achieved in this group.
The consecutive transfer of day 3 embryos and blastocysts can prevent the total loss of a cycle when embryos fail to develop to the blastocyst stage in culture and thereby provide additional pregnancies.
探讨连续移植第3天胚胎和囊胚是否能防止胚胎移植失败并增加妊娠率。
在第3天进行胚胎移植，之后将所有剩余胚胎培养至囊胚阶段以便可能进行第二次移植。
选择142例患者进行延长培养。其中32例患者在培养中未发育出囊胚，然而，该组有12例妊娠成功。
连续移植第3天胚胎和囊胚可在胚胎培养过程中未能发育至囊胚阶段时防止周期完全失败，从而增加妊娠率。
