[Pregnancy outcomes of day-2 versus day-3 embryo transfer in poor responders].
Zhonghua Nan Ke Xue
; 18(6): 522-6, 2012 Jun.
Article
em Zh
| MEDLINE
| ID: mdl-22774607
ABSTRACT
OBJECTIVE:
To investigate whether the day of embryo transfer (day 2 or day 3) affects clinical pregnancy outcomes in poor responder patients.METHODS:
We retrospectively analyzed the pregnancy rates of 265 initial fresh cycles of in vitro fertilization-embryo transfer (IVF-ET), all transferred on day 2 (n = 169) or day 3 (n = 96) irrespective of quality because of an extremely low number of available embryos.RESULTS:
Among the poor responders aged < 35 years, a higher rate of clinical pregnancy was achieved in the day-3 than in the day-2 group (50% vs 32.43% ; RR = 0.65, 95% CI 0.43 - 0.99), and among those aged years, the two groups showed similar pregnancy outcomes.CONCLUSION:
Shortening the time of embryo culture has no obvious benefit for the pregnancy outcome. For the poor responders under 35 years of age, day-3 embryo transfer may afford an even higher rate of clinical pregnancy.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ovário
/
Resultado da Gravidez
/
Transferência Embrionária
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Female
/
Humans
/
Pregnancy
Idioma:
Zh
Revista:
Zhonghua Nan Ke Xue
Assunto da revista:
MEDICINA REPRODUTIVA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
China