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Review Suggests Recently Frozen Embryos Yield Higher Pregnancy Rates

Wall Street Journal,  Oct 02, 2012

Recent evidence suggests that freezing an embryo and thawing it for use in a woman’s next cycle, via in vitro fertilization (IVF), may result in higher pregnancy rates compared to a cycle using fresh embryos.

A review slated for publication in Fertility and Sterility, the journal of the American Society for Reproductive Medicine, examined three previous randomized, controlled studies on the subject. It was discovered that only 38% of women receiving a fresh embryo achieved pregnancy, where those receiving a recently frozen embryo had a 50% pregnancy rate.
While further research is needed, doctors believe these findings could lead to less risk of Ovarian Hyperstimulation Syndrome (OHSS), safer pregnancies, and fewer delivery complications. It is believed that the greater success associated with transferring frozen embryos will encourage doctors and patients to opt for Single Embryo Transfers (SETs).

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