Vitrification can modify embryo cleavage stage after warming. Should we change endometrial preparation?

• Published in: Journal of assisted reproduction and genetics Vol. 29; no. 12; pp. 1363 - 1368
• Main Authors: Cercas, R., Villas, C., Pons, I., Braña, C., Fernandez-Shaw, S.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.12.2012; Springer Nature B.V
• Subjects: Adult; Assisted Reproduction Technologies; Blastocyst - cytology; Blastocyst - physiology; Cell division; Cleavage Stage, Ovum - cytology; Cleavage Stage, Ovum - physiology; Cryopreservation; Cryopreservation - methods; Embryo Culture Techniques; Embryo Implantation; Embryo Transfer - methods; Embryonic Development; Embryos; Endometrium; Female; Gynecology; Human Genetics; Humans; Medicine; Medicine & Public Health; Morula - cytology; Morula - physiology; Pregnancy; Pregnancy Rate; Prospective Studies; Reproductive Medicine; Vitrification; United States > US; Embryo cleavage; Progesterone; Vitrification; Endometrium; Blastocyst; Implantation window

Purpose Studies have shown that embryo metabolism and cell cleavage after warming vitrified embryos is faster than after thawing frozen embryos. We study vitrified embryo transfer (VET) results depending on the developmental stage of warmed embryos and the duration of progesterone treatment before e...