Morphologic grading of euploid blastocysts influences implantation and ongoing pregnancy rates
نویسندگان
چکیده
منابع مشابه
High implantation and pregnancy rates with transfer of human hatching day 6 blastocysts.
Although improved outcomes of IVF after transfer of blastocysts has been reported (1, 2), it remains uncertain which blastocyst can develop into a viable fetus. At present, expansion of the blastocyst is the most practical selection criterion. However, if extended culture of embryos produces many expanded-stage blastocysts, it is not easy to decide which blastocysts to transfer (Fig. 1A). In ad...
متن کاملO-23: Transfer of Blastocysts Derived from Frozen Thawed Cleavage Stage Embryos Improved Ongoing Pregnancy
Background: The aim of our study was to compare the resulting from transfer of embryos that cryopereserved in cleavage stage after thawing and transfer of embryos after thawing and culture in sequentional media until blastocyst formation. Materials and Methods: In this prospective clinical study, we have evaluated 128 cycles in women undergone in vitro fertilization (IVF) or intracytoplasmic sp...
متن کاملCryopreserved human blastocysts after vitrification result in excellent implantation and clinical pregnancy rates.
We conducted a retrospective review of all frozen ETs from May 2002 to October 2007 using our new vitrification technique in order to determine its efficacy. We found high pregnancy (70.5%; 79/112) and implantation (40.6%; 110/271) rates with the use of this new method.
متن کاملOngoing normal pregnancy after transfer of zona-free blastocysts: implications for embryo transfer in the human.
Recent reports suggest that transfer of day 5 blastocysts improves implantation rates in in-vitro fertilization programmes. This paper reports a successful ongoing pregnancy after the transfer of zona-free day 6 expanded and hatching blastocysts. The patient was 37 years old and had undergone six stimulated and two thaw cycles previously, all of which had failed. Stimulation was by down-regulat...
متن کاملAssessment of clinical application of preimplantation genetic screening on cryopreserved human blastocysts
BACKGROUND Recent advancement in both human embryology and preimplantation genetic screening has created a completely new situation for human assisted reproduction. Embryos, typically at blastocyst stage, are biopsied and screened by DNA microarray or next-generation sequencing before cryopreservation, and then euploid embryos are warmed for transfer. Increased embryo implantation rates have be...
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ژورنال
عنوان ژورنال: Fertility and Sterility
سال: 2017
ISSN: 0015-0282
DOI: 10.1016/j.fertnstert.2016.11.012