title: [A study of the controlled ovarian hyperstimulation using GnRH agonist and pure FSH in in vitro fertilization-embryo transfer and gamete intrafallopian transfer program].
abstract: The present study was undertaken to examine controlled ovarian hyperstimulation (COH) during an IVF-ET/GIFT program with GnRH agonist (GnRH-a) and pure FSH and with the conventional method. Pituitary desensitization was induced with a subcutaneous injection of GnRH agonist (leuprolide acetate) in 20 patients undergoing COH for oocyte recovery. These 20 patients had previously dropped out of our IVF-ET/GIFT program because of a low estradiol response or premature LH surge. Comparisons were made among the menstrual cycles of 20 drop-out patients, the same patients' cycles after GnRH-a and pure FSH administration (GnRH-a group), and the cycles of 20 non-drop-out patients (control group). After treatment with GnRH-a and pure FSH, Estradiol levels were increased (GnRH-a cycles:previous cycles, 1,520 +/- 416 pg/ml:416 +/- 209.1 pg/ml), while the premature LH surge was decreased (GnRH-a cycles:previous cycles, 2:12). Moreover, the number of follicles at the day of hCG injection was increased (GnRH-a group: control group, 4.6 +/- 1.3:3.4 +/- 1.5). However, the fertilization rates for the GnRH-a group and the control group did not differ markedly, though the pregnancy rate was increased slightly in the former (GnRH-a group:control group, 25%:15%). In conclusion, it was seen that COH using GnRH-a and pure FSH contributed to a better ovarian response and suppression of LH surge in patients who had previously dropped out of the IVF-ET/GIFT program using conventional ovarian stimulation.
authors.affiliation: 1st Department of Obstetrics and Gynecology, Toho University School of Medicine, Tokyo.
authors.forename: A
authors.initials: A
authors.lastname: Usui
mesh_terms: D000328:Adult; D004359:Drug Therapy, Combination; D004624:Embryo Transfer; D004958:Estradiol / Q000097:blood; D005260:Female; D005306:Fertilization / Q000187:drug effects; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000008:administration & dosage* / Q000627:therapeutic use; D015181:Gamete Intrafallopian Transfer; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D016729:Leuprolide; D007986:Luteinizing Hormone / Q000097:blood; D008597:Menstrual Cycle / Q000187:drug effects; D006080:Ovarian Follicle / Q000187:drug effects / Q000502:physiology; D010053:Ovary / Q000187:drug effects* / Q000502:physiology; D013268:Stimulation, Chemical
chemical_list: D007987:Gonadotropin-Releasing Hormone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D016729:Leuprolide