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:
“Hail, hail, plump paunch, O the founder of taste
For fresh meats, or powdered, or pickle, or paste;
Devourer of broiled, baked, roasted or sod,
And emptier of cups, be they even or odd;
All which have now made thee so wide i’ the waist
As scarce with no pudding thou art to be laced;
But eating and drinking until thou dost nod,
Thou break’st all thy girdles, and break’st forth a god.”
—Ben Jonson (1572–1637)
“Westminster Abbey is nature crystallized into a conventional form by man, with his sorrows, his joys, his failures, and his seeking for the Great Spirit. It is a frozen requiem, with a nation’s prayer ever in dumb music ascending.”
—M. E. W. Sherwood (1826–1903)