title: Serum levels of luteinizing and follicle-stimulating hormones in normal and poor-responding patients undergoing ovarian stimulation with urofollitropin after pituitary downregulation.
abstract: We were interested in the degree of downregulation in women with poor response to in vitro fertilization (IVF) treatment. Ten women who were poor-responders, arbitrarily defined as having fewer than three follicles with diameter > 14 mm on days 9 and 10 of urofollitropin therapy, were compared with ten women who were not poor-responders, in a standard IVF program. The serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol after pituitary down-regulation did not differ between the two groups. The daily dose and the serum level of FSH were higher in poor-responders and there was a significant correlation between the dose of urofollitropin and the serum FSH level. There was no difference in serum LH level during ovulation stimulation between the groups. The clinical pregnancy rate was similar in the two groups although fewer embryos were transferred in the poor-response group. In conclusion, there was no difference with regard to pituitary suppression in normal-responders and poor-responders.
authors.affiliation: Department of Obstetrics and Gynecology, Karolinska Institute, Huddinge University Hospital, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Fridström
authors.forename: E
authors.initials: E
authors.lastname: Akerlöf
authors.forename: P
authors.initials: P
authors.lastname: Sjöblom
authors.forename: T
authors.initials: T
authors.lastname: Hillensjö
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000097:blood* / Q000627:therapeutic use*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood*; D006080:Ovarian Follicle / Q000033:anatomy & histology; D010062:Ovulation Induction; D011247:Pregnancy
chemical_list: D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone