Objective: To assess the effect of 17alpha-hydroxyprogesterone caproate (17-HPC) given before embryo transfer on the pregnancy outcome of IVF-embryo transfer (ET) cycles.
Design: Randomized controlled study.
Setting: A university-based hospital IVF unit.
Patient(s): One hundred twenty-five consecutive patients undergoing IVF-ET were randomly assigned into treatment and control groups.
Intervention(s): In the treatment group, 63 patients received 17-HPC (250 mg, i.m.), 1 day before ET. The control group consisted of 62 patients who did not receive any injections.
Main Outcome Measure(s): Pregnancy and multiple-pregnancy rates.
Result(s): The two groups were similar with respect to the age of patients, total dose of FSH, number of oocytes and embryos obtained, and number and quality of embryos transferred. There was no significant difference in the pregnancy rate (34.9% vs. 38.7%) or in the rate of multiple gestation (15.9% vs. 9.7%) between cases and controls, respectively.
Conclusion(s): The use of 17-HPC before ET does not appear to affect the outcome of IVF-ET.
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http://dx.doi.org/10.1016/j.fertnstert.2007.05.043 | DOI Listing |
F S Rep
December 2024
Reproductive Center, Medical Corporation Group Mio Fertility Clinic, Kuzumo-Minami, Yonago, Japan.
Objective: To investigate whether artificial removal of zona pellucida (ZP) at the pronuclear stage improves good-quality embryos and blastocyst development in patients with difficulty conceiving because of severe fragmentation in early-cleavage stage.
Design: Exploratory investigation.
Setting: Reproductive center.
F S Rep
December 2024
Clinical Department, Al Ain Fertility Center, Al Ain, Abu Dhabi, United Arab Emirates.
Objective: To present a case of a couple with 20 years of infertility and 10 recurrent in vitro fertilization (IVF) failures, identifying a paternal complex chromosome rearrangement using high-resolution karyotype together with preimplantation genetic testing for structural rearrangements (PGT-SR) and utilizing IVF-intracytoplasmic sperm injection to achieve a successful pregnancy.
Design: Case report.
Setting: Al Ain Fertility Center, Abu Dhabi, United Arab Emirates.
F S Rep
December 2024
Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada.
Objective: To report a patient with McCune-Albright syndrome (MAS) with bilateral ovarian involvement who had achieved a pregnancy through in vitro fertilization (IVF).
Design: Case report.
Setting: Academic fertility center.
F S Rep
December 2024
Department of Obstetrics and Gynecology, University of South Florida, Morsani College of Medicine, Tampa, Florida.
Objective: To compare pregnancy outcomes after single blastocyst embryo transfer among patients whose first autologous embryo transfer was either a fresh embryo transfer or a frozen embryo transfer (FET) after a freeze-all, in the absence of preimplantation genetic testing for aneuploidy (PGT-A).
Design: A multicenter retrospective cohort analysis.
Setting: National multicenter fertility practice.
Reprod Domest Anim
January 2025
College of Animal Science and Technology, Hebei Technology Innovation Center of Cattle and Sheep Embryo, Hebei Agricultural University, Baoding, Hebei, China.
The aim of the present study was to evaluate the effects of spatially and/or temporally asynchronous transfer of in vivo embryos at different stages in ewes during the breeding season. Four experiments were carried out. In Experiment 1, 207 blastocysts that had been frozen and thawed were transferred into the oviducts of 43 day two recipients, the oviducts of 23 day six recipients, and the uteri of 141 day six recipients, respectively.
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