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Abstract
The aim of this study was to compare the costs and effects of two different controlled ovarian hyperstimulation treatments: a starting dose of recombinant follicle stimulating hormone (FSH) followed by highly purified urinary FSH; or highly purified urinary FSH alone.
Forty-six infertile patients, after being given luteal gonadotropin-releasing hormone (GnRH) agonist, were randomly assigned to the two stimulation protocols. During the ovarian stimulation regimen the patients underwent transvaginal ultrasonographic evaluation of follicular number and size. The retrieved oocytes were classified on the basis of the criteria of Acosta and colleagues. To study the impact of embryo quality on implantation, the embryos were graded morphologically before replacement. Pregnancy rates were ascertained and the costs of the two different protocols were analyzed.
The number of days of FSH stimulation and the cost of gonadotropin treatment were similar in both groups. The number of follicles > 17 mm in size, the number of collected oocytes, and pregnancy rate per cycle were significantly higher in the group partially treated with recombinant gonadotropin. We conclude from these results that the use of recombinant FSH in the early phase of controlled ovarian hyperstimulation leads to significant improvements in pregnancy rate per cycle without increasing the costs of treatment.