title: Pulsatile administration of gonadotrophin releasing hormone as a diagnostic tool to distinguish hypothalamic from pituitary hypogonadism following neurosurgery.
abstract: Nine patients suffering from severe amenorrhoea following neurosurgical or radiotherapy for pituitary tumour or craniopharyngeoma were treated with pulsatile gonadotrophin releasing hormone (GnRH) administration. Seven patients did exhibit ovulatory cycles when GnRH was administered i.v. at a dose of 20 micrograms/pulse, but not at lower doses or when GnRH was administered s.c. Pulsatile GnRH administration may be used to assess the functional integrity of pituitary gonadotrophs and to distinguish pituitary from hypothalamic site of lesion resulting in hypogonadotrophic hypogonadism. It may also be used successfully for treatment of infertility in such patients.
authors.affiliation: Department of Obstetrics and Gynaecology, University of Erlangen, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Begon
authors.forename: G
authors.initials: G
authors.lastname: Leyendecker
authors.forename: R
authors.initials: R
authors.lastname: Fahlbusch
authors.forename: M
authors.initials: M
authors.lastname: Buchfelder
authors.forename: L
authors.initials: L
authors.lastname: Wildt
mesh_terms: D000293:Adolescent; D000328:Adult; D003397:Craniopharyngioma / Q000150:complications / Q000601:surgery; D004958:Estradiol / Q000097:blood; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D007006:Hypogonadism / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D007029:Hypothalamic Neoplasms / Q000150:complications* / Q000601:surgery; D007247:Infertility, Female / Q000188:drug therapy; D010060:Ovulation; D010507:Periodicity; D010911:Pituitary Neoplasms / Q000150:complications* / Q000601:surgery; D011247:Pregnancy; D011374:Progesterone / Q000097:blood
chemical_list: D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D004958:Estradiol