Fresh Embryos as Great as Frozen Ones for In Vitro Fertilization


For most women undergoing in vitro fertilization, fresh embryos work just as well as frozen ones.

Previous trials have suggested of which using only frozen embryos might improve pregnancy rates in women with polycystic ovary syndrome, or PCOS, a hormonal disorder of which affects about 10 percent of women. (Women with This specific condition ovulate irregularly as well as typically have a poorer response to IVF treatment.) however in two large randomized trials published inside fresh England Journal of Medicine, researchers found using fresh or frozen embryos makes no difference for the majority of women who do not have PCOS.

inside first study, of 2,157 women without PCOS, 50.2 percent of fresh embryo transfers resulted in a live birth, as well as so did 48.7 percent of the frozen transfers. The difference was statistically insignificant.

inside second, of 782 women without PCOS, live birthrates were 33.8 percent for the frozen-embryo group as well as 31.5 percent for the fresh, again an insignificant difference.

“Unless there are specific factors of which require the item, you can safely go that has a fresh transfer of your first embryo,” said the senior author of the second study, Dr. Ben W. Mol, a professor of obstetrics at the University of Adelaide in Australia. “Transfer your first embryo fresh. There is actually no need to completely go around the first fresh transfer.”

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