title: The effect of selecting oocytes for insemination and transferring all resultant embryos without selection on outcomes of assisted reproduction.
abstract: OBJECTIVE
  To evaluate the effect of selecting three best oocytes for insemination and transfer of all resultant embryos on outcomes of assisted reproductive technologies (ART).
  
  
  METHODS
  Comparative study.
  
  
  METHODS
  The Center of Reproductive Medicine, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy.
  
  
  METHODS
  Women undergoing ART during the period March 10, 2004 to March 9, 2006.
  
  
  METHODS
  Comparing outcomes of ART following transfers of 3 "excellent" (n = 267) embryos and cycles in which none of the embryos was considered "excellent quality" (n = 176).
  
  
  METHODS
  Rates of fertilization, pregnancy, "take-home baby," and multiple pregnancies.
  
  
  RESULTS
  The average number of retrieved oocytes and the average number of inseminated oocytes of good quality were similar in both groups. Intracytoplasmic sperm injection was performed four to five times more often in cycles without "excellent quality" irrespective of the patient's age (odds ratio 4.6, 95% confidence interval 3.0, 7.1). The two groups had similar rates of implantation, total pregnancies/ET, clinical intrauterine pregnancy, singleton and multiple births, and "take-home" baby rate. This similarity persisted irrespective of the patient's age.
  
  
  CONCLUSIONS
  The selection of oocytes for insemination and transfer of all available embryos irrespective of their quality did not change outcomes of ART.
authors.affiliation: Department of Obstetrics and Gynecology, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy.
authors.forename: Giovanni Battista
authors.initials: GB
authors.lastname: La Sala
authors.forename: Alessia
authors.initials: A
authors.lastname: Nicoli
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Villani
authors.forename: Roberta
authors.initials: R
authors.lastname: Di Girolamo
authors.forename: Francesco
authors.initials: F
authors.lastname: Capodanno
authors.forename: Isaac
authors.initials: I
authors.lastname: Blickstein
mesh_terms: D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D005300:Fertility Agents, Female / Q000627:therapeutic use; D005640:Follicle Stimulating Hormone / Q000627:therapeutic use; D006801:Humans; D007315:Insemination, Artificial / Q000379:methods*; D007558:Italy; D016729:Leuprolide / Q000627:therapeutic use; D008297:Male; D054315:Oocyte Retrieval / Q000379:methods; D009865:Oocytes / Q000166:cytology* / Q000187:drug effects / Q000502:physiology*; D010062:Ovulation Induction / Q000379:methods; D011247:Pregnancy; D011256:Pregnancy Outcome; D011994:Recombinant Proteins / Q000627:therapeutic use; D027724:Reproductive Techniques, Assisted / Q000331:legislation & jurisprudence; D020554:Sperm Injections, Intracytoplasmic / Q000379:methods*
chemical_list: D005300:Fertility Agents, Female; D011994:Recombinant Proteins; D005640:Follicle Stimulating Hormone; D016729:Leuprolide