Results 121 to 130 of about 149 (148)
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Frozen Embryo Transfer and Preeclampsia Risk
Journal of Gynecology Obstetrics and Human Reproduction, 2021Worldwide, the use of Assisted Reproductive Technology (ART) has been steadily rising over recent years. With the continuous improvements in cryopreservation techniques and the growing practice of single embryo transfer, the proportion of frozen embryo transfer (FET) cycles has been increasing, therefore raising concern about the safety of this ART ...
Ana Isabel Severino +1 more
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The role of timing in frozen embryo transfer
Fertility and Sterility, 2022The process of implantation is characterized by a complex cross-talk between the endometrium and the blastocyst, with the endometrium only being receptive to implantation during a transient window of implantation of approximately 2-3 days during the midsecretory phase.
Sarah Lensen +5 more
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Racial disparities in frozen embryo transfer success
Journal of Assisted Reproduction and Genetics, 2021To compare pregnancy and birth outcomes after frozen embryo transfers (FETs) among White, Black, and Asian women and evaluate the effect of patient, protocol, and cycle characteristics on success.A retrospective chart review identified women who underwent an autologous FET at an academic fertility center between January 2013 and March 2020.White, Black,
Quetrell Heyward +7 more
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Transfer of frozen-thawed embryos in sheep
Veterinary Record, 1987Embryos collected from ewes six days after oestrus were frozen in straws using ethylene-glycol as a cryoprotectant. The efficiency of the simplified freezing and thawing procedure was assessed after transfer, which resulted in an overall survival rate of 58.3 per cent.
Y Cognie +3 more
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Frozen Storage and Transfer of Bovine Embryos
Journal of Animal Science, 1978SUMMARY Viability of bovine embryos after freezing and thawing was studied to determine the optimal stage of development for freezing and requirements for synchrony of recipient and embryo for successful transfer. There was no significant difference in viability of frozen-thawed blastocysts obtained on day 7 and 8 after estrus providing they were ...
B. F. Shea +3 more
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Australian and New Zealand Journal of Obstetrics and Gynaecology, 2023
BackgroundThe use of ultrasound to guide placement of the embryo during in vitro fertilisation (IVF) is important, but there are times where a good image cannot be obtained. Having a trained sonographer perform the ultrasound may therefore improve the success of embryo transfer.AimTo determine whether the routine use of a sonographer to guide embryo ...
Juliette Koch +4 more
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BackgroundThe use of ultrasound to guide placement of the embryo during in vitro fertilisation (IVF) is important, but there are times where a good image cannot be obtained. Having a trained sonographer perform the ultrasound may therefore improve the success of embryo transfer.AimTo determine whether the routine use of a sonographer to guide embryo ...
Juliette Koch +4 more
openaire +2 more sources
A simplified method of timing frozen embryo transfers
American Journal of Obstetrics and Gynecology, 1995Our purpose was to compare a simple artificial hormone replacement regimen with two other protocols incorporating pituitary down-regulation with gonadotropin-releasing hormone agonist for frozen embryo transfers.We performed a retrospective analysis of pregnancy outcomes after 366 frozen embryo transfers timed by one of three hormone replacement ...
Denise L. Cassidenti +5 more
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Frozen Embryo Transfer Preparation
2019The increased use of embryo freezing has placed greater emphasis on techniques and protocols regarding frozen-thawed embryo transfer (FET). While no one method has emerged as the superior choice, the various strategies in use each have their own benefits as well as drawbacks.
David Prokai, Orhan Bukulmez
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Cycle regimens for frozen-thawed embryo transfer
2002Pregnancy rates following frozen-thawed embryo transfer (FET) treatment have always been found to be lower than following embryo transfer using fresh embryos. Nevertheless, FET increases the (cumulative) pregnancy rate, reduces cost, is relatively simple to undertake and can be accomplished in a shorter time period compared to repeated 'fresh' cycles ...
T, Ghobara, P, Vandekerckhove
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Frozen embryo transfer and preeclampsia: where is the link?
Current Opinion in Obstetrics & Gynecology, 2020Purpose of review Preeclampsia is the leading cause of maternal death and has a higher incidence in patients undergoing assisted reproduction treatments. New studies about the mechanisms by which it is more frequent in this population have emerged.
Henrique Dall'Agnol +1 more
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