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Erratum to "Higher live birth rates are associated with a normal body mass index in preimplantation genetic testing for aneuploidy frozen embryo transfer cycles: a Society for Assisted Reproductive Technology Clinic Outcome Reporting System study" [Fertil Steril 2024;121:291-98].
Fertil Steril
January 2025
Department of Obstetrics, Gynecology and Women's Health, Albert Einstein College of Medicine, Montefiore's Institute for Reproductive Medicine and Health, Hartsdale, New York.
Impact of Laser-Assisted Hatching on Cognitive and Metabolic Development of Singletons Conceived Through Frozen-Thawed Embryo Transfer: A Matched Cohort Study.
BJOG
January 2025
Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Zhejiang, China.
Objective: This study aimed to examine the impact of laser-assisted hatching (LAH) on the physical, metabolic, cognitive and behavioural profiles of singletons conceived through frozen-thawed embryo transfer (FET) at the preschool age.
Design: A matched cohort study.
Setting: The reproductive centre of Women's Hospital, Zhejiang University School of Medicine.
Singleton term pregnancies resulting from frozen-thawed embryo transfer in hormone replacement cycles increase the risk of aberrant placentation, including velamentous umbilical cord insertion.
Arch Gynecol Obstet
January 2025
Kubonoya Women's Hospital, 2-2-12 Chuou, Kashiwa City, Chiba, 277-0023, Japan.
Purpose: The number of frozen-thawed embryo transfers (FETs) has recently increased, and FET must be completed in the ovulatory (NC-FET) or programmed hormone replacement cycle (HRC-FET). However, the relationship between FET and abnormal placentation is unclear. This study aimed to determine whether the two distinct endometrial preparation protocols affect the incidence of several pathologic conditions caused by abnormal placentation, such as placenta with velamentous umbilical cord insertion (VCI), hypertensive disorders of pregnancy (HDP), and placenta accreta spectrum (PAS).
View Article and Find Full Text PDFA randomized controlled trial comparing embryo vitrification with slush nitrogen to liquid nitrogen in women undergoing frozen embryo transfer: embryology and clinical outcomes.
Hum Reprod
January 2025
IVIRMA Global Research Alliance, IVIRMA New Jersey, Basking Ridge, NJ, USA.
Study Question: Does the use of slush nitrogen (SN) for embryo vitrification improve embryo transfer outcomes compared to liquid nitrogen (LN)?
Summary Answer: SN is a safe method for embryo preservation and significantly improves post-warming survival rates during repeated vitrification-warming cycles; however, after a single freeze-thaw cycle, pregnancy outcomes are not improved when embryos are vitrified with SN compared to LN.
What Is Known Already: SN is a combination of solid and LN, with a temperature lower than regular LN, and it is an alternative to conventional LN in achieving a faster cooling speed. Studies have shown that SN improves survival in non-human embryos and human oocytes.
Embryo Cryopreservation: What do couples think about it?
JBRA Assist Reprod
January 2025
Department of Gynecology and Obstetrics, Ribeirão Preto Medical School of University of Sao Paulo, Ribeirão Preto, Brazil.
Objective: To investigate the perspectives of infertile couples regarding embryo cryopreservation throughout assisted reproduction treatment.
Methods: The convenience sample included infertile couples undergoing assisted reproduction treatment. They responded to a questionnaire specifically designed to gauge views and opinions on cryopreservation of surplus embryos.
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