Results 211 to 220 of about 2,502,626 (254)

The role of timing in frozen embryo transfer

Fertility and Sterility, 2022
The 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, Daniel Lantsberg, David K. Gardner, Azzahra Daniveruszhka Sophian, Namira Wandafiana, Mohan S. Kamath   +5 more
openaire   +2 more sources

Racial disparities in frozen embryo transfer success

Journal of Assisted Reproduction and Genetics, 2021
To 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, Jessica R. Walter, Snigdha Alur-Gupta, Arnav Lal, Dara S. Berger, Nathanael Koelper, Samantha F. Butts, Clarisa R. Gracia   +7 more
openaire   +2 more sources

Transfer of frozen-thawed embryos in sheep

Veterinary Record, 1987
Embryos 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, Heyman, C, Vincent, V, Garnier, Y, Cognie   +3 more
openaire   +4 more sources

Frozen Storage and Transfer of Bovine Embryos

Journal of Animal Science, 1978
SUMMARY 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 ...
A O, Trounson, B F, Shea, G W, Ollis, M E, Jacobson   +3 more
openaire   +2 more sources

Sonographer‐guided frozen embryo transfer vs ultrasound‐assisted frozen embryo transfer – A randomised controlled study

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, Rebecca Redden, Gillian Homan, Bronwen Roberts, Leanne Pacella‐Ince   +4 more
openaire   +2 more sources

Luteal Phase Progesterone Increases Live Birth Rate After Frozen Embryo Transfer

Fertility and Sterility, 2011
OBJECTIVE: To see if progesterone support has a beneficial effect on live birth rate after frozen embryo transfer in natural cycles. DESIGN: Prospective randomized controlled trial. SETTING: University-based hospital. SUBJECT(S): Four hundred thirty-five
Anneli Stavreus-Evers, Britt-Marie Landgren   +1 more
exaly   +2 more sources

Transfer of Fresh Versus Frozen Embryos in Ovulatory Women

New England Journal of Medicine, 2018
(Abstracted from N Engl J Med 2018;378:126–136) A previous randomized controlled trial involving women with polycystic ovary syndrome (PCOS) compared fresh-embryo transfer with elective freezing of all embryos followed by frozen-embryo transfer.
Xiaoxi Sun, Zi-Jiang Chen, Songying Zhang   +2 more
exaly   +3 more sources

Frozen embryo transfer: the present practice and beyond

jbcpp, 2013
Abstract Background: With the success of oocyte donation in vitro fertilization (IVF) in postmenopausal women, the importance of endometrial preparation became obvious. This appears also very crucial for achieving pregnancy after frozen embryo transfer (FET) after failed fresh IVF cycles and ...
Anjana Ray, Chaudhuri, Siddhartha, Chatterjee   +1 more
openaire   +2 more sources

Neonatal and Maternal Outcome After Frozen Embryo Transfer: Increased Risks in Programmed Cycles

American Journal of Obstetrics and Gynecology, 2019
Frozen embryo transfer is associated with better perinatal outcome regarding preterm birth and low birth weight yet higher risk of large for gestational age and macrosomia compared to fresh transfer.
Ali Khatibi, Christina Bergh, Ulla-Britt Wennerholm   +2 more
exaly   +2 more sources

Ideal frozen embryo transfer regime

Current Opinion in Obstetrics & Gynecology
Purpose of review This review aims to compare evidence on four criteria (embryo implantation, obstetric outcomes, patient convenience, and IVF-unit efficiency) by analyzing published research on different endometrial preparation methods for frozen embryo transfer (FET). Recent findings
Juan, Castillo, Shahar, Kol
openaire   +2 more sources