title: Gonadotropin-releasing hormone and its analogues: applications in gynecology.
abstract: In ovulation induction with hMG for IVF, clinical advantage has been taken of the agonistic ability of GnRH-a and its hypothalamic downregulating effect. This allows a better follicular synchronization, which represents an increase in the number and quality of oocytes and a decrease in the number of cancelled IVF cycles. Furthermore, according to the E2 response during the first 5 days of stimulation, the leuprolide screening test allows us to individualize ovarian stimulation for IVF and helps to prevent the potential risk of multiple pregnancy. In our experience, the majority of patients undergoing IVF benefit from the flare-up protocol, with the exception of the patients with an E2 pattern C response who benefit from the LPL protocol.
authors.affiliation: Women's Hospital Fertility and IVF Center, Greater Baltimore Medical Center, MD 21204.
authors.forename: J E
authors.initials: JE
authors.lastname: Garcia
mesh_terms: D002985:Clinical Protocols; D004359:Drug Therapy, Combination; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D005640:Follicle Stimulating Hormone / Q000097:blood; D005498:Follicular Phase / Q000187:drug effects; D006801:Humans; D007247:Infertility, Female / Q000097:blood / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000188:drug therapy*; D016729:Leuprolide / Q000494:pharmacology / Q000627:therapeutic use*; D008183:Luteal Phase / Q000187:drug effects; D007986:Luteinizing Hormone / Q000097:blood; D008403:Mass Screening / Q000379:methods; D008596:Menotropins / Q000627:therapeutic use; D009865:Oocytes / Q000187:drug effects; D010062:Ovulation Induction / Q000379:methods*; D011247:Pregnancy; D011256:Pregnancy Outcome; D011272:Pregnancy, Multiple; D011374:Progesterone / Q000097:blood; D011446:Prospective Studies; D012189:Retrospective Studies; D014463:Ultrasonography
chemical_list: D011374:Progesterone; D004958:Estradiol; D008596:Menotropins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D016729:Leuprolide