title: The inability of preovulatory ovarian scan to predict multifetal pregnancy occurrence in a follow-up of induction of ovulation with menotropins.
abstract: OBJECTIVE
  To establish the predictive role of preovulatory ovarian ultrasonography in the occurrence of multiple pregnancy after hMG and hCG treatment for anovulatory infertility.
  
  
  METHODS
  Prospective.
  
  
  METHODS
  Outpatient Infertility Clinic.
  
  
  METHODS
  Ninety-five anovulatory women who conceived after gonadotropin therapy.
  
  
  METHODS
  Induction of ovulation by hMG and hCG monitored by plasma E2 measurements and ovarian ultrasonography.
  
  
  METHODS
  All follicles visualized on the day of hCG administration were recorded and divided into the following four groups: group I, 10 to 12 mm; group II, 13 to 15 mm; group III, 16 to 18 mm; and group IV, 19 mm and larger. The sonographic findings were statistically evaluated to 80 singletons and 45 multiple pregnancies.
  
  
  RESULTS
  No statistical correlation was found to exist between the number of follicles from the different groups and the number of fetuses.
  
  
  CONCLUSIONS
  The number and sizes of follicles visualized on the day of hCG administration have no predictive value regarding the occurrence of a multiple pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology, Sapir Medical Center, Kfar Saba, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Ben-Nun
authors.forename: I
authors.initials: I
authors.lastname: Cohen
authors.forename: A
authors.initials: A
authors.lastname: Shulman
authors.forename: M
authors.initials: M
authors.lastname: Fejgin
authors.forename: S
authors.initials: S
authors.lastname: Goldberger
authors.forename: Y
authors.initials: Y
authors.lastname: Beyth
mesh_terms: D000328:Adult; D000858:Anovulation; D006063:Chorionic Gonadotropin / Q000627:therapeutic use*; D002996:Clomiphene / Q000627:therapeutic use; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D008596:Menotropins / Q000627:therapeutic use*; D010053:Ovary / Q000000981:diagnostic imaging*; D010062:Ovulation Induction; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011446:Prospective Studies; D014463:Ultrasonography
chemical_list: D006063:Chorionic Gonadotropin; D002996:Clomiphene; D004958:Estradiol; D008596:Menotropins