Cryopreservation Does Not Affect the Clinical Pregnancy Rate of Blastocysts Derived from Vitrified Oocytes

Autor:	Hadi Ramadan, Tarita Pakrashi, Andrea R. Thurman, Kimball O. Pomeroy, Gerard Celia
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Medicine Science
Zdroj:	Scientific Reports, Vol 12, Iss 1, Pp 1-4 (2022)
Druh dokumentu:	article
ISSN:	2045-2322
DOI:	10.1038/s41598-022-12992-x
Popis:	Abstract Vitrified, or “frozen”, donor eggs can either be fertilized and cultured for fresh transfer (group 1), or fertilized and cryopreserved for transfer in a “frozen embryo transfer” cycle (group 2). This study compared the pregnancy rates between the two groups. Frozen donor egg cycles (N = 1213) were analyzed at the World Egg Bank. The outcome studied was clinical pregnancy rate. Cycles included only single embryo transfers (ET) without preimplantation genetic testing (PGT). A total of 600 cycles met the inclusion criteria. Group 1 included 409 cycles and group 2 had 191 cycles. There was no statistical significance in clinical pregnancy rate between the two groups (38.63% vs 32.46%, p = 0.14). Mean embryo age was higher in group 2 (5.1 vs. 5.4 days, p
Databáze:	Directory of Open Access Journals
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