title: Assessment of endocrine status in patients undergoing in-vitro fertilization treatment. Is it necessary?
abstract: Endocrine evaluation as a prerequisite for every patient undergoing routine in-vitro fertilization (IVF) and embryo transfer for tubal or male factor infertility is still a matter of debate. The aim of this study was to determine if a full endocrine work-up, including the measurement of androgens, gonadotropins, prolactin and TSH, is conclusive for the subsequent success in IVF/ET. 71 infertile women without known endocrinopathies (e.g., polycystic ovarian disease), who were scheduled to enter the IVF/ET program were studied under strictly standardized conditions during the follicular phase of a natural cycle. Fasting serum concentrations of follicle stimulating hormone, luteinizing hormone, oestradiol, progesterone, prolactin, testosterone (T), dehydroepiandrosterone, 17-OH-progesterone, androstenedione and thyroid stimulating hormone (TSH) were measured using commercially available radioimmunoassays. Ovarian stimulation was performed by a long gonadotrophin-releasing hormone agonist/human menopausal gonadotrophin protocol. The overall clinical pregnancy rate was 15.5% in the first started IVF cycle. While patients who conceived in the first treatment cycle had significantly lower T levels (368 +/- 49 pg/ml) than those who did not (518 +/- 27 pg/ml, p=0.042, Kruskal & Wallis H-test), but the percentage of women with elevated T concentrations was not different. Similarly, TSH concentrations were significantly higher in women with a clinical pregnancy (1.9 +/- 0.2 mU/ml) than in non-pregnant women (1.4 +/- 0.3 mU/ml, p=0.046), but levels were still within the normal range. There were no further significant differences in hormone levels between pregnant and non-pregnant patients. These results do not suggest the measurement of a full hormonal profile in all infertile women before IVF/ET in non-endocrine infertility, taking into account the low likelihood to identify endocrinological disturbances, the considerable cost of endocrine testing and the paucity of therapeutic consequences.
authors.affiliation: Universitäts-Frauenklinik Würzburg. u.zollner@mail.uni-wuerzburg.de
authors.forename: U
authors.initials: U
authors.lastname: Zollner
authors.forename: K
authors.initials: K
authors.lastname: Lanig
authors.forename: T
authors.initials: T
authors.lastname: Steck
authors.forename: J
authors.initials: J
authors.lastname: Dietl
mesh_terms: D019326:17-alpha-Hydroxyprogesterone / Q000097:blood; D000328:Adult; D000735:Androstenedione / Q000097:blood; D003687:Dehydroepiandrosterone / Q000097:blood; D004624:Embryo Transfer; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000097:blood; D006728:Hormones / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D011388:Prolactin / Q000097:blood; D013739:Testosterone / Q000097:blood; D013972:Thyrotropin / Q000097:blood
chemical_list: D006728:Hormones; D013739:Testosterone; D000735:Androstenedione; D003687:Dehydroepiandrosterone; D011374:Progesterone; D004958:Estradiol; D019326:17-alpha-Hydroxyprogesterone; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D013972:Thyrotropin