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:
“If you want fresh air, don’t look for it in this town.”
—Ben Maddow (1909–1992)
“Governments can err, Presidents do make mistakes, but the immortal Dante tells us that divine justice weighs the sins of the cold-blooded and the sins of the warm-hearted in different scales. Better the occasional faults of a Government that lives in a spirit of charity than the constant omission of a Government frozen in the ice of its own indifference.”
—Franklin D. Roosevelt (1882–1945)