title: Treatment outcome in women with a single ovary versus patients with two ovaries undergoing in vitro fertilization and embryo transfer (IVF/ET).
abstract: OBJECTIVE
  To compare ovarian response and pregnancy rate between women with one and two ovaries undergoing in vitro fertilization and embryo transfer (IVF/ET).
  
  
  METHODS
  20 IVF/ET treatment cycles in ten women with a single ovary were compared with 60 IVF/ET cycles in 47 women with two ovaries. Both groups were matched for age and treated for mechanical infertility. In both groups treatment protocol included gonadotropin releasing hormone/human menopausal gonadotropin/human chorionic gonadotropin (GnRH/hMG/hCG).
  
  
  RESULTS
  Effective daily dose of gonadotropins (3.7+/-0.7 vs. 3.6+/-1.0), mean 17beta-estradiol levels on day of hCG administration (1136+/-467 vs. 1343+/-776), number of retrieved oocytes (6.4+/-3.7 vs. 8.3+/-4.2) and number of embryos per transfer (3.0+/-0.7 vs 2.9+/-1.2) were not statistically different between the groups. A significantly higher pregnancy rate was observed among women with one ovary (52.9%) as compared with those with two ovaries (20.8%), (P=0.015). Multivariate logistic regression analysis demonstrated an odds ratio of 5.73 for patients with a single ovary.
  
  
  CONCLUSIONS
  Treatment outcome in patients with a single ovary undergoing IVF/ET is comparable to those with two ovaries. The unexpected significantly higher pregnancy rate observed among these patients need to be further evaluated.
authors.affiliation: Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel. gadp@bgumail.bgu.ac.il
authors.forename: E
authors.initials: E
authors.lastname: Levitas
authors.forename: B
authors.initials: B
authors.lastname: Furman
authors.forename: I
authors.initials: I
authors.lastname: Shoham-Vardi
authors.forename: E
authors.initials: E
authors.lastname: Lunenfeld
authors.forename: G
authors.initials: G
authors.lastname: Potashnik
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000008:administration & dosage; D003338:Corpus Luteum / Q000737:chemistry; D004624:Embryo Transfer; D004958:Estradiol / Q000032:analysis / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D016015:Logistic Models; D008596:Menotropins / Q000008:administration & dosage; D010052:Ovariectomy; D011247:Pregnancy; D011374:Progesterone / Q000032:analysis; D016896:Treatment Outcome
chemical_list: D006063:Chorionic Gonadotropin; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D004958:Estradiol; D008596:Menotropins