title: Ovarian stimulation in assisted reproduction.
abstract: In assisted reproductive medicine the controlled ovarian hyperstimulation enables several oocytes to be collected with the following transfer of more than one embryo and a higher pregnancy rate than in natural cycles. The most frequently used stimulation protocols are: i) clomiphene citrate (CC) and hMG stimulation; ii) hMG/FSH stimulation; iii) GnRH agonist (GnRH-a) and hMG/FSH stimulation, iiia) GnRH-a long protocol, iiib) GnRH-a short protocol, GnRH-a ultrashort protocol, iv) GnRH antagonist and hMG stimulation. The protocols are described and the advantages and disadvantages are discussed.
authors.affiliation: Institute of Reproductive Medicine, Giessen, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Gips
authors.forename: P
authors.initials: P
authors.lastname: Hormel
authors.forename: V
authors.initials: V
authors.lastname: Hinz
mesh_terms: D005260:Female; D006801:Humans; D010062:Ovulation Induction / Q000379:methods; D011247:Pregnancy; D012099:Reproductive Techniques