title: Prognostic value of serum progesterone and LH values on the day of hCG administration in IUI GnRH antagonist cycles.
abstract: OBJECTIVE
  to evaluate the effect of LH surge and progesterone rise in IUI cycles under gonadotropin stimulation with GnRH antagonist coadministration on pregnancy rates (PR).
  
  
  METHODS
  The population under study consisted of 152 women prospectively studied and subjected to IUI.
  
  
  RESULTS
  The higher the progesterone cutoff value, the lower the PR were 26.5% and 10.9% when the cutoff was 1 ng/mL, 26.0% and 8.6% when the cutoff was 1.2 ng/mL, 25.6% and 7.1% when the cutoff was 1.4 ng/mL and 25.3% and 0% when the cutoff was 1.6 ng/mL.
  
  
  CONCLUSIONS
  In IUI cycles under GnRH antagonist coadministration, serum progesterone levels over 1.0 ng/mL are associated with lower PR, the higher the progesterone levels, the lower the PR.
authors.affiliation: School of Medicine, Bizkaia, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Matorras
authors.forename: A Valls I
authors.initials: AV
authors.lastname: Soler
authors.forename: O
authors.initials: O
authors.lastname: Ramon
authors.forename: J
authors.initials: J
authors.lastname: Burgos
authors.forename: E
authors.initials: E
authors.lastname: Abanto
authors.forename: M
authors.initials: M
authors.lastname: González
authors.forename: J
authors.initials: J
authors.lastname: Múgica
authors.forename: B
authors.initials: B
authors.lastname: Corcóstegui
authors.forename: J I
authors.initials: JI
authors.lastname: Pijoan
authors.forename: Antonia
authors.initials: A
authors.lastname: Exposito
mesh_terms: D000022:Abortion, Spontaneous / Q000097:blood / Q000453:epidemiology; D006063:Chorionic Gonadotropin / Q000008:administration & dosage* / Q000097:blood; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000037:antagonists & inhibitors*; D006801:Humans; D007315:Insemination, Artificial / Q000379:methods*; D007986:Luteinizing Hormone / Q000097:blood*; D011247:Pregnancy; D018873:Pregnancy Rate; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data; D011374:Progesterone / Q000097:blood*; D011379:Prognosis; D011446:Prospective Studies; D016896:Treatment Outcome
chemical_list: D006063:Chorionic Gonadotropin; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D007986:Luteinizing Hormone