Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Hum Reprod Update ; 20(6): 808-21, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24916455

RESUMO

BACKGROUND: Improvements in vitrification now make frozen embryo transfers (FETs) a viable alternative to fresh embryo transfer, with reports from observational studies and randomized controlled trials suggesting that: (i) the endometrium in stimulated cycles is not optimally prepared for implantation; (ii) pregnancy rates are increased following FET and (iii) perinatal outcomes are less affected after FET. METHODS: This review integrates and discusses the available clinical and scientific evidence supporting embryo transfer in a natural cycle. RESULTS: Laboratory-based studies demonstrate morphological and molecular changes to the endometrium and reduced responsiveness of the endometrium to hCG, resulting from controlled ovarian stimulation. The literature demonstrates reduced endometrial receptivity in controlled ovarian stimulation cycles and supports the clinical observations that FET reduces the risk of ovarian hyperstimulation syndrome and improves outcomes for both the mother and baby. CONCLUSIONS: This review provides the basis for an evidence-based approach towards changes in routine IVF, which may ultimately result in higher delivery rates of healthier term babies.


Assuntos
Criopreservação/métodos , Transferência Embrionária/métodos , Resultado da Gravidez , Antígenos CD34/metabolismo , Implantação do Embrião , Endométrio/fisiologia , Medicina Baseada em Evidências , Feminino , Humanos , Imuno-Histoquímica , Ciclo Menstrual/fisiologia , Síndrome de Hiperestimulação Ovariana/epidemiologia , Síndrome de Hiperestimulação Ovariana/prevenção & controle , Gravidez
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...