title: [Stimulation of ovarian function with gonadotropins following suppression of endogenous gonadotropin secretion by long-term infusion of the LHRH analog buserelin].
abstract: The treatment of infertile women by gonadotropins is more effective in hypogonadotropic than in normogonadotropic ovarian insufficiency. In order to induce a hypogonadotropic state the luteinizing hormone-releasing hormone analog (LHRHA) buserelin was administered in eight cycles of four infertile patients suffering from luteal phase defect. Buserelin was infused subcutaneously in a dosage of 400 micrograms/d for 26-44 days using a portable external osmotic minipump system. Following suppression of estradiol-17 beta below 35 pg/ml within 11 +/- 5 days, gonadotropins were injected intramuscularly to stimulate ovarian function. In all cycles treated, ovulation and formation of a functional corpus luteum were observed without signs of premature luteinization. Whereas constant administration of LHRHA by a slow release system seems very useful for long-term reversible suppression of follicular maturation, further studies should evaluate the clinical usefulness of combined LHRHA/gonadotropin treatment in cases of infertility.
mesh_terms: D000328:Adult; D002064:Buserelin / Q000008:administration & dosage*; D006063:Chorionic Gonadotropin / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D004958:Estradiol / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007247:Infertility, Female / Q000097:blood / Q000188:drug therapy*; D007260:Infusion Pumps; D007273:Injections, Intramuscular; D008183:Luteal Phase / Q000187:drug effects; D007986:Luteinizing Hormone / Q000097:blood; D008596:Menotropins / Q000627:therapeutic use*; D010049:Ovarian Diseases / Q000097:blood / Q000188:drug therapy*
chemical_list: D006063:Chorionic Gonadotropin; D004958:Estradiol; D008596:Menotropins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D002064:Buserelin
vernacular_title: Stimulation der Ovarialfunktion mit Gonadotropinen nach Suppression der endogenen Gonadotropin-Sekretion durch Dauerinfusion des LHRH-Analogon Buserelin.