The likelihood of having a child with IFV treatment with frozen and 'fresh' embryos is the same.

The likelihood of having a child with IFV treatment with frozen and

Women who undergo IVF treatment using frozen embryos have the same chance of having a child as when they use a 'fresh' embryo.

That is the conclusion of American and Chinese researchers. They carried out research among 2,000 women who received a frozen or unfrozen embryo during a first IVF treatment, reports the Huffington Post.

Difference negligible
The women who had been given a frozen embryo have a very small percentage less chance of having a child, but that difference is so small that, according to the researchers, this is negligible.

"Frozen embryo techniques are becoming increasingly popular among fertility clinics around the world," says lead researcher Dr. ir. Lan N. Vuong. "That is one of the reasons why our research is so important for fertility clinics, researchers and parents who want a child."

The study showed that women who were given a frozen embryo had 48.7 percent chance of having a child. With an unfrozen embryo that percentage was 50.2.

OHSS
There was another important difference. When using a frozen embryo, women are less likely to have ovarian hyperstimulation syndrome (OHSS). A condition that can affect the ovaries of women who take fertility medication to stimulate egg production. When frozen embryos are used, the risk of OHSS is 0.6 percent, when using fresh embryos it is 2 percent.

The research was published in the New England Journal of Medicine.

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