title: Histologic characteristics of the endometrium predicts success when utilizing autologous endometrial coculture in patients with IVF failure.
abstract: OBJECTIVE
  To analyze the success of autologous endometrial coculture (AECC) in improving embryo quality and pregnancy outcome based on the histologic characteristic of the biopsy.
  
  
  METHODS
  Prospective study of 86 consecutive patients undergoing IVF utilizing AECC.
  
  
  RESULTS
  The patients were on average 37.4+/-4.0 years with a history of 2.6+/-1.8 failed previous attempts. An overall clinical pregnancy rate of 45.3% per ET was found. The embryos grown in AECC were of an improved quality in comparison to those grown in conventional media. 33.7% (29/86) of the biopsies were out of phase (>3 days). In-phase (IP) and OOP (out of phase) specimens both demonstrated an improvement in embryo quality. However, OOP endometrial biopsies that displayed significant retarded endometrial development (< cycle day 19) did not demonstrate an improvement in embryos grown on AECC as compared to IP endometrial biopsies or OOP endometrial biopsies that demonstrated at least an endometrial development of cycle day 19.
  
  
  CONCLUSIONS
  We have demonstrated a significant improvement in embryo quality with AECC. We have also demonstrated that histologic dating of the endometrium is predictive of IVF outcome when utilizing AECC.
authors.affiliation: Department of Obstetrics and Gynecology, Center for Reproductive Medicine and Infertility, Cornell University Medical Center, New York, New York 10021, USA. sdspando@med.cornell.edu
authors.forename: S D
authors.initials: SD
authors.lastname: Spandorfer
authors.forename: R
authors.initials: R
authors.lastname: Soslow
authors.forename: R
authors.initials: R
authors.lastname: Clark
authors.forename: S
authors.initials: S
authors.lastname: Fasouliotis
authors.forename: O K
authors.initials: OK
authors.lastname: Davis
authors.forename: Z
authors.initials: Z
authors.lastname: Rosenwaks
mesh_terms: D000328:Adult; D018920:Coculture Techniques / Q000379:methods*; D046149:Embryo Culture Techniques / Q000379:methods*; D004717:Endometrium / Q000033:anatomy & histology* / Q000166:cytology; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D005544:Forecasting; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D017211:Treatment Failure