title: Inhibin B on the day of HCG-administration is a predictive factor for failure in assisted reproduction cycles.
abstract: METHODS
  This retrospective study was carried out in order to assess the value of inhibin B as a predictive factor for the assisted reproduction-outcome. Inhibin B on the day of HCG-administration (ovulation induction) was measured in 15 pregnant and 16 non-pregnant patients (defined as positive serum-HCG) and compared by single and multiple logistic regression analysis with classical predictive factors such as estrogen and oocyte number. Both groups were similar with respect to age and cause of infertility.
  
  
  RESULTS
  While estrogen, FSH and LH at the HCG-day did not differ, inhibin B, the number of cumulus oocyte complexes and metaphase II -oocytes were statistically significantly different. In a single variable logistic model inhibin B, cumulus oocyte complexes and metaphase II oocytes showed significant correlation with pregnancy. When reassessed in a multiple variable logistic model only inhibin B maintained a considerable influence. Further inspection revealed, that the predictive inhibin B value at HCG-day <1200 pg/ml for failure of ART (assisted reproduction techniques) was 91%. Inhibin >1200 pg/ml showed 70% predictivity for pregnancy.
  
  
  CONCLUSIONS
  In comparison to classical parameters inhibin B at HCG-day seems to be the better prognostic factor for the outcome of ART. Inhibin B <1200 pg/ml seems to be highly predictive for failure of ART.
mesh_terms: D006063:Chorionic Gonadotropin / Q000008:administration & dosage*; D004967:Estrogens / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007265:Inhibins / Q000097:blood*; D016015:Logistic Models; D007986:Luteinizing Hormone / Q000097:blood; D008677:Metaphase; D009865:Oocytes; D006080:Ovarian Follicle / Q000166:cytology; D011247:Pregnancy; D011256:Pregnancy Outcome; D011379:Prognosis; D011446:Prospective Studies; D027724:Reproductive Techniques, Assisted; D017211:Treatment Failure
chemical_list: D006063:Chorionic Gonadotropin; D004967:Estrogens; C422364:inhibin B; D007265:Inhibins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone