Does early morphology provide additional selection power to blastocyst selection for transfer?
Reprod Biomed Online
; 21(4): 510-9, 2010 Oct.
Article
em En
| MEDLINE
| ID: mdl-20817557
ABSTRACT
Routine early developmental parameters are widely used in IVF centres to evaluate embryo development and fresh single-blastocyst transfer currently seems superior to single-embryo transfer. Would early morphological parameters help to choose the single blastocyst to be transferred, thereby improving the chances of implantation and live birth rate? This prospective observational study analysed the individual outcomes of 2617 embryos from 511 IVF couples scheduled for a single-blastocyst transfer. Embryo and blastocyst scores were constructed. There was a clear relationship between the kinetics and morphology of blastocysts and further implantation and live birth rate. There was a limited predictive value of embryo score with regard to blastocyst development and growth kinetics. Implanted and non-implanted blastocysts showed similar embryo scores. Thus usual morphological parameters on days 1 and 2 seem to have no additional value in indicating the right blastocyst to transfer. Non-invasive approaches might be helpful to increase the chances of implantation in the future.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Blastocisto
/
Desenvolvimento Embrionário
/
Transferência Embrionária
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Reprod Biomed Online
Assunto da revista:
MEDICINA REPRODUTIVA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
França