Fresh embryo transfer after in vitro insemination of fresh vs. cryopreserved anonymous donor oocytes: which has a better live birth rate? A Society for Assisted Reproductive Technology Clinic Outcome Reporting System analysis

From glass to life: a commentary on the assessment of the reproductive potential of cryopreserved human oocytes

“…Although data from some donor MAR centers show comparable ART outcomes with fresh and cryopreserved donated oocytes [ 2 ], it is interesting that large data registries increasingly report significant differences in live birth rates between these two groups of donors [ 7 ]. The American Society for Reproductive Medicine (ASRM) guidelines also warn to be cautious about equating the development potential of fresh and cryopreserved oocytes and conclude that there is insufficient evidence that the live birth rate is the same with vitrified vs. fresh donor oocytes [ 8 ].…”