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Fresh versus Frozen Embryos for Infertility in the Polycystic Ovary Syndrome
Ist Teil von
The New England journal of medicine, 2016-08, Vol.375 (6), p.523-533
Ort / Verlag
United States: Massachusetts Medical Society
Erscheinungsjahr
2016
Quelle
MEDLINE
Beschreibungen/Notizen
In this randomized trial involving infertile women with the polycystic ovary syndrome, frozen-embryo transfer was associated with a higher rate of live birth than was fresh-embryo transfer after the first transfer.
In vitro fertilization (IVF) is widely performed as an infertility treatment and has resulted in the births of more than 5 million infants worldwide.
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However, there are concerns about the safety of the procedures for women and for their infants.
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,
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The ovarian hyperstimulation syndrome (which is caused by ovarian enlargement, an increase in vascular permeability and abdominal ascites, and intravascular hemoconcentration) is a potentially life-threatening complication of ovarian stimulation.
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Pregnancies conceived by means of IVF are associated with greater risks of maternal and neonatal complications, including preeclampsia, preterm delivery, low birth weight, and congenital anomalies, than are spontaneous pregnancies. . . .