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In-vitro fertilization in infertile women with the polycystic ovarian syndrome
Authors:P O Dale  T Tanbo  T Abyholm
Affiliation:Department of Obstetrics and Gynaecology, National Hospital, University of Oslo, Norway.
Abstract:Forty-four infertile patients with the polycystic ovarian syndrome (PCOS) resistant to other treatment modalities were treated in 58 cycles of IVF after accomplishment of pituitary gonadotroph suppression with a GnRH-agonist. Four cycles were cancelled before oocyte retrieval while embryo transfer was deferred for 10 cycles due to imminent ovarian hyperstimulation syndrome (OHSS). Follicle aspiration yielded 18.8 +/- 9 oocytes per cycle. The cleavage rate was 68%. There was no cleavage in five cycles. The pregnancy rate was 33.3% per embryo transfer. In 32 cycles 9.0 +/- 5 suitable supernumerary embryos were cryopreserved. Transfer of cryopreserved embryos gave three additional pregnancies. The accumulated pregnancy rate per patient was 36%. In clomiphene citrate resistant patients, transfer of cryopreserved embryos was accomplished after secretory transformation of the endometrium by oestradiol/progesterone substitution. Although seven pregnancies ended in a miscarriage, the 'take-home' baby rate was 20%. OHSS ensued in 28 (46.7%) cycles. In PCOS, in-vitro fertilization following pituitary gonadotroph suppression seems a treatment alternative with pregnancy rates comparable to normo-ovulatory women with tubal factor infertility. However, the incidence of OHSS is high and constitutes the major problem of cycle control.
Keywords:polycystic ovarian syndrome/GnRH-agonist/in-vitro fertilization/ovarian hyperstimulation syndrome
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