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Fresh Versus Frozen Embryos For Infertility In The Polycystic Ovary Syndrome
发布时间: 2016-08-20 07:01:25.0     发布来源: Tips for you    
作者:     发布人:睿祯     点击次数:311

Frozen embryo transfer during IVF may improve chances for pregnancy in women with polycystic ovary syndrome.

(HealthDay News) — For women with polycystic ovary syndrome (PCOS) seeking infertility treatment, the use of frozen embryos rather than fresh appears to improve the chances for a successful pregnancy, according to a study published in the New England Journal of Medicine.

Richard Legro, MD, a professor of obstetrics and gynecology and public health sciences at Pennsylvania State University in Hershey, and colleagues randomly assigned 1508 infertile Chinese women who had PCOS and who were having their first in vitro fertilization (IVF) cycle to use either fresh or frozen embryo transfer.

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The researchers found a higher frequency of live birth after the first transfer when frozen embryos were used (49.3%) than when fresh embryos were implanted (42.0%). At the same time, there was a slightly higher risk of preeclampsia (4.4% vs 1.4%), and newborn death (5 deaths vs 0), in women who received frozen embryos. Women given frozen embryos had fewer miscarriages than women given fresh embryos (22.% vs 32.7%). Women given frozen embryos also had fewer instances of hyperstimulation syndrome than women given fresh embryos (1.3% vs 7.1%).

Christos Coutifaris, MD, PhD, chief of the division of reproductive endocrinology and infertility at the University of Pennsylvania Perelman School of Medicine, wrote an editorial that accompanied the study and questioned whether the difference in pregnancy rates between using frozen or fresh embryos is significant enough to recommend using frozen embryos. He thinks the distinction should be based on how many embryos a patient has.

"In selected cases, especially for women who overstimulate, the approach to freeze all the embryos is prudent," Dr Coutifaris told HealthDay.

Source : http://www.endocrinologyadvisor.com/androgen-and-reproductive-disorders/frozen-vs-fresh-embryos-for-in-vitro-fertilization-in-pcos/article/515578/

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