To blastocyst or not to blastocyst? That is the question.
Hum Reprod
; 16(4): 617-9, 2001 Apr.
Article
in En
| MEDLINE
| ID: mdl-11278206
ABSTRACT
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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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Blastocyst
/
Embryo Transfer
Limits:
Female
/
Humans
/
Pregnancy
Language:
En
Journal:
Hum Reprod
Journal subject:
MEDICINA REPRODUTIVA
Year:
2001
Document type:
Article
Affiliation country: