Fresh Versus Frozen
Embryos can be either “fresh” from fertilized egg cells of the same menstrual cycle, or “frozen”, that is they have been generated in a preceding cycle and undergone embryo cryopreservation, and are thawed just prior to the transfer. The outcome from using cryopreserved embryos has uniformly been positive with no increase in birth defects or development abnormalities, also between fresh versus frozen eggs used for intracytoplasmic sperm injection (ICSI). Children born from vitrified blastocysts have significantly higher birthweight than those born from non-frozen blastocysts.
Read more about this topic: Embryo Transfer
Famous quotes containing the words fresh and/or frozen:
“Ye have been fresh and green,
Ye have been fill’d with flowers:
And ye the Walks have been
Where Maids have spent their houres.”
—Robert Herrick (1591–1674)
“We all have bad days, of course, a secret that only makes us feel more guilty. But once my friends and I started telling the truth about how far we deviated from perfection, we couldn’t stop. . . . One mother admitted leaving the grocery store without her kids—”I just forgot them. The manager found them in the frozen foods aisle, eating Eskimo Pies.””
—Mary Kay Blakely (20th century)