To blastocyst or not to blastocyst? That is the question

被引：38

作者：

Alper, MM

Brinsden, P

Fischer, R

Wikland, M

机构：

[1] Boston IVF, Waltham, MA 02451 USA

[2] Bourn Hall, Bourn, Cambs, England

[3] Fertil Ctr Hamburg, Hamburg, Germany

[4] Fertil Ctr Gothenburg, Gothenburg, Sweden

来源：

HUMAN REPRODUCTION | 2001年 / 16卷 / 04期

关键词：

blastocyst; cryopreservation; IVF; transfer;

D O I：

10.1093/humrep/16.4.617

中图分类号：

R71 [妇产科学];

学科分类号：

100211 ;

摘要：

Recent advances in culture media preparations have allowed for cleavage embryos to be developed to the blastocyst stage. Blastocysts are regarded as having increased implantation potential, and two blastocysts are typically transferred, which reduces the occurrence of high order multiple gestations. However, with current techniques, most cleavage embryos do not become blastocysts and it is not clear how many of these embryos would have implanted had they been replaced at the cleavage stage. Furthermore, experience with blastocyst cryopreservation is lacking and the overall benefit of blastocyst culture is unknown, unless we consider the combined pregnancy rates of both fresh and frozen blastocysts.

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收藏

页码：617 / 619

页数：3

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